# restful-api

**Repository Path**: chindar/restful-api

## Basic Information

- **Project Name**: restful-api
- **Description**: Restful标准及JPA的OneToMany基本操作
- **Primary Language**: Unknown
- **License**: Apache-2.0
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2020-08-04
- **Last Updated**: 2021-03-09

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# HTTP动词
对于资源的具体操作类型，由HTTP动词表示。
常用的HTTP动词有下面五个（括号里是对应的SQL命令）。

```text
GET（SELECT）：从服务器取出资源（一项或多项）。
POST（CREATE）：在服务器新建一个资源。
PUT（UPDATE）：在服务器更新资源（客户端提供改变后的完整资源）。
PATCH（UPDATE）：在服务器更新资源（客户端提供改变的属性）。
DELETE（DELETE）：从服务器删除资源。
```

还有两个不常用的HTTP动词。

```text
HEAD：获取资源的元数据。
OPTIONS：获取信息，关于资源的哪些属性是客户端可以改变的。
```

下面是一些例子。
```text
GET /zoos：列出所有动物园
POST /zoos：新建一个动物园
GET /zoos/ID：获取某个指定动物园的信息
PUT /zoos/ID：更新某个指定动物园的信息（提供该动物园的全部信息）
PATCH /zoos/ID：更新某个指定动物园的信息（提供该动物园的部分信息）
DELETE /zoos/ID：删除某个动物园
GET /zoos/ID/animals：列出某个指定动物园的所有动物
DELETE /zoos/ID/animals/ID：删除某个指定动物园的指定动物
```

# fixed 内存溢出
## 代码
```java
@Setter
@Getter
@Entity
@Table(name = "tb_zoo")
public class Zoo {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;
    @NotBlank
    private String name;
    private String address;
    private String url;
    @OneToMany(mappedBy = "zoo")
    private List<Animal> animalList;
}
```
```java
@Setter
@Getter
@Entity
@Table(name = "tb_animal")
public class Animal {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    @NotBlank
    private String name;

    @NotBlank
    private String kind;

    @ManyToOne
    private Zoo zoo;
}
```
调用GET /zoos/{id}/animals 时, 会出现内存溢出。
```text
Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.http.converter.HttpMessageNotWritableException: Could not write JSON: Infinite recursion (StackOverflowError); nested exception is com.fasterxml.jackson.databind.JsonMappingException: Infinite recursion (StackOverflowError) (through reference chain: com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"]->org.hibernate.collection.internal.PersistentBag[0]->com.chinda.core.entity.Animal["zoo"]->com.chinda.core.entity.Zoo["animalList"])] with root cause
```
出现此情况是因为转换json时会递归转换, 最终导致内存溢出。
`解决方案: 忽略掉一方的json转换即可。`
修复后代码：
```java
@Setter
@Getter
@Entity
@Table(name = "tb_animal")
public class Animal {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    @NotBlank
    private String name;

    @NotBlank
    private String kind;

    @JsonIgnore
    @ManyToOne
    private Zoo zoo;
}
```

# OneToMany嵌入式
> 此种情况多适用于多方无需CRUD, 只需要单方直接维护情况。


请参考:
ContactInfo.java
```java
@Data
@Embeddable
public class ContactInfo {
    private String phoneNumber;
    private String address;
}
```
User.java
```java
@Setter
@Getter
@Entity
@Table(name = "tb_user")
public class User {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;
    private String name;
    @ElementCollection
    @CollectionTable(name = "tb_contact_user")
    private List<ContactInfo> contactInfoList;
}
```

# 添加Model属性校验
因`validation`本身校验抛出异常不好控制, 所以需要统一处理, 封装成view中可控数据。
```java
public class ValidatorUtils {
    private static Validator validator;

    static {
        validator = Validation.buildDefaultValidatorFactory().getValidator();
    }

    /**
     * 校验对象
     * @param object        待校验对象
     * @param groups        待校验的组
     * @throws RRException  校验不通过，则报RRException异常
     */
    public static void validateEntity(Object object, Class<?>... groups)
            throws RRException {
        Set<ConstraintViolation<Object>> constraintViolations = validator.validate(object, groups);
        if (!constraintViolations.isEmpty()) {
            String message = constraintViolations.stream().map(e -> (e.getPropertyPath() + e.getMessage()))
                    .collect(Collectors.joining(StrUtil.COMMA));
            throw new RRException(message);
        }
    }
}
```

# 全局异常处理
为了保证客户端能够收到友好的提示。
```java
@Slf4j
@RestControllerAdvice
public class GlobalExceptionHandler {

    @ExceptionHandler(Exception.class)
    public RRException exceptionHandler(Exception e) {
        log.error("系统异常：", e);
        return new RRException(e.getMessage(), e);
    }

    /**
     * @Valid全局异常处理
     * @param e
     * @return
     */
    @ExceptionHandler({MethodArgumentNotValidException.class})
    public RRException validExceptionHandler(MethodArgumentNotValidException e) {
        log.error("数据校验异常: ", e);
        List<FieldError> fieldErrors = e.getBindingResult().getFieldErrors();
        List<String> errorMessages = CollUtil.newArrayList();
        Iterator var5 = fieldErrors.iterator();

        while(var5.hasNext()) {
            FieldError error = (FieldError)var5.next();
            errorMessages.add(error.getField() + error.getDefaultMessage());
        }
        return new RRException(errorMessages.stream().collect(Collectors.joining(StrUtil.COMMA)));
    }
}
```

# 分页处理
## maven添加jpa插件
```xml
<plugin>
    <groupId>com.mysema.maven</groupId>
    <artifactId>apt-maven-plugin</artifactId>
    <version>1.1.3</version>
    <executions>
        <execution>
            <phase>generate-sources</phase>
            <goals>
                <goal>process</goal>
            </goals>
            <configuration>
                <outputDirectory>target/generated-sources/queries</outputDirectory>
                <processor>com.querydsl.apt.jpa.JPAAnnotationProcessor</processor>
            </configuration>
        </execution>
    </executions>
</plugin>
```

## 添加querydsl依赖
```xml
<dependency>
    <groupId>com.querydsl</groupId>
    <artifactId>querydsl-jpa</artifactId>
</dependency>
<dependency>
    <groupId>com.querydsl</groupId>
    <artifactId>querydsl-core</artifactId>
</dependency>
<dependency>
    <groupId>com.querydsl</groupId>
    <artifactId>querydsl-apt</artifactId>
</dependency>
```
通过maven编译会根据Entity实体类在`target/generated-sources/queries`目录下生成以Q开头的类供查询动态编写sql使用。。

## 编写分页返回封装类
将数据库中查询出的数据封装成此类, 方便前端页面使用。
```java
@Setter
@Getter
public class RPage<T> implements Serializable {

    private static final long serialVersionUID = 1L;
    /**
     * 总记录数
     */
    private int totalCount;
    /**
     * 每页记录数
     */
    private int pageSize;
    /**
     * 总页数
     */
    private int totalPage;
    /**
     * 当前页数
     */
    private int currPage;
    /**
     * 列表数据
     */
    private List<?> list;

    /**
     * 分页
     * @param list        列表数据
     * @param totalCount  总记录数
     * @param pageSize    每页记录数
     * @param currPage    当前页数
     */
    public RPage(List<?> list, int totalCount, int pageSize, int currPage) {
        this.list = list;
        this.totalCount = totalCount;
        this.pageSize = pageSize;
        this.currPage = currPage;
        this.totalPage = (int)Math.ceil((double)totalCount/pageSize);
    }


    public RPage(Page<T> page) {
        this.list = page.getContent();
        this.totalCount = (int)page.getTotalElements();
        this.pageSize = page.getPageable().getPageSize();
        this.currPage = page.getPageable().getPageNumber() + 1;
        this.totalPage = (int)Math.ceil((double)totalCount/pageSize);
    }
}
```

## 编写查询基类BaseQO提供分页功能
```java
@Getter
@Setter
public class BaseQO implements Serializable {
    private static final long serialVersionUID = 1L;
    /**
     * 每页显示多少条
     */
    private Integer pageSize = 20;
    /**
     * 当前页码
     */
    private Integer currPage = 1;
    /**
     * 排序
     */
    private String order;
    /**
     * 排序字段
     */
    private String orderField;

    public PageRequest getPageRequest() {
        orderField = SQLFilter.sqlInject(orderField);
        Sort.Direction direction = Sort.Direction.ASC;
        if (StrUtil.isNotBlank(order)) {
            if (StrUtil.equalsIgnoreCase(order, Sort.Direction.DESC.name())) {
                direction = Sort.Direction.DESC;
            }
            return PageRequest.of(currPage - 1, pageSize, Sort.by(direction, orderField));
        }
        return PageRequest.of(currPage - 1, pageSize);
    }
}
```
通过此类会将分页及排序封装, 提供给JPA暴露功能使用。
## 编写动态sql
通过BooleanBuilder及Querydls提供的功能编写动态sql。

# 封装Service简化代码
```java
@Transactional(rollbackFor = Exception.class)
public abstract class ServiceImpl<D extends JpaRepository<T, Long>, T> {

    @Autowired
    private D baseDao;

    /**
     * 获取全部数据
     *
     * @return
     */
    public List<T> queryAll() {
        return baseDao.findAll();
    }

    /**
     * 获取数据详情
     *
     * @param id
     * @return
     */
    public T getOne(Long id) {
        return baseDao.findById(id).orElseThrow(()-> new RRException("该数据不存在"));
    }

    /**
     * 保存数据
     *
     * @param t
     * @return
     */
    public T save(T t) {
        return baseDao.save(t);
    }

    /**
     * 删除数据
     *
     * @param id
     * @return
     */
    public void remove(Long id) {
        baseDao.deleteById(id);
    }
}
```
## demo
```java
public class ZooServiceImpl extends ServiceImpl<ZooDao, Zoo> implements ZooService{

}
```

# 权限
修复`no Session`问题
```text
org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: com.chinda.core.entity.SysUser.roleList, could not initialize proxy - no Session
at com.chinda.common.config.security.UserAuthenticationProvider.authenticate(UserAuthenticationProvider.java:61) ~[classes/:na]
```
原因为查询出`sysRoleList`, session已经回收, 61行代码便利sysRoleList时, 找不到session获取不到子集数据，故会抛出异常。
解决方案：
将此处代码纳入`@Transactional(readOnly = true, rollbackFor = Exception.class)`管理