# database-all

**Repository Path**: mymall/database-all

## Basic Information

- **Project Name**: database-all
- **Description**: Eloquent ORM for Java 【database-spring-boot-starter】
- **Primary Language**: Java
- **License**: MIT
- **Default Branch**: master
- **Homepage**: https://github.com/gaarason/database-all
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 2
- **Created**: 2021-09-18
- **Last Updated**: 2021-09-18

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# database
[![](https://jitpack.io/v/gaarason/database-all.svg)](https://jitpack.io/#gaarason/database-all)  

Eloquent ORM for Java

## 简介

 让连接数据库以及对数据库进行增删改查操作变得非常简单，不论希望使用原生 SQL、还是查询构建器，还是 Eloquent ORM。  
      
 Eloquent ORM 提供一个美观、简单的与数据库打交道的 ActiveRecord 实现，每张数据表都对应一个与该表数据结构对应的实体（Entity），以及的进行交互的模型（Model），通过模型类，你可以对数据表进行查询、插入、更新、删除等操作，并将结果反映到实体实例化的 java 对象中。

## 目录
* [注册bean](/document/bean.md)
* [数据映射](/document/mapping.md)
* [数据模型](/document/model.md)
* [查询结果集](/document/record.md)
* [查询构造器](/document/query.md)
* [生成代码](/document/generate.md)
* [版本信息](/document/version.md)


- 以如下的方式在程序中查询数据

```java
// 查询id为4的一条数据
Student student = studentModel.find(4).toObject();

// 稍复杂嵌套的语句 select id,name from student where id=3 or(age>11 and id=7 and(id between 4 and 10 and age>11))
List<Student> Students = studentModel.newQuery().where("id", "3").orWhere(
    builder -> builder.where("age", ">", "11").where("id", "7").andWhere(
        builder2 -> builder2.whereBetween("id", "4", "10").where("age", ">", "11")
    )
).select("id", "name").get().toObjectList();
```
## spring boot 快速开始

1.引入仓库 pom.xml  
```$xslt
<repository>
    <id>jitpack.io</id>
    <url>https://jitpack.io</url>
</repository>
```
2.引入依赖 pom.xml  
```$xslt
<dependency>
    <groupId>com.github.gaarason.database-all</groupId>
    <artifactId>database-spring-boot-starter</artifactId>
    <version>RELEASE</version>
</dependency>
```
3.配置连接 application.properties  
```$xslt
spring.datasource.druid.url=jdbc:mysql://sakya.local/test_master_0?useUnicode=true&characterEncoding=utf-8&zeroDateTimeBehavior=convertToNull&useSSL=true&autoReconnect=true&serverTimezone=Asia/Shanghai
spring.datasource.druid.username=root
spring.datasource.druid.password=root
spring.datasource.druid.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.druid.db-type=com.alibaba.druid.pool.DruidDataSource
spring.datasource.druid.initialSize=1
spring.datasource.druid.minIdle=1
spring.datasource.druid.maxActive=20
spring.datasource.druid.maxWait=60000
```
4.快速开始  
```java
package gaarason.database.spring.boot.starter.test;

import gaarason.database.eloquent.GeneralModel;
import gaarason.database.eloquent.Record;
import lombok.extern.slf4j.Slf4j;
import org.junit.Assert;
import org.junit.FixMethodOrder;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.MethodSorters;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;

import javax.annotation.Resource;
import java.util.Map;

@RunWith(SpringRunner.class)
@SpringBootTest
@FixMethodOrder(MethodSorters.JVM)
public class TestApplicationTests {

    @Resource
    GeneralModel generalModel;

    @Test
    public void 简单查询() {
        Record<GeneralModel.Table, Object> first = generalModel.newQuery().from("student").where("id", "3").first();
        Assert.assertNotNull(first);
        Map<String, Object> stringObjectMap = first.toMap();
        Assert.assertEquals((long) stringObjectMap.get("id"), 3);
        System.out.println(stringObjectMap);
    }

}
```