IDEA好用插件：MybatisX快速生成接口实体类mapper.xml映射文件

1、在Idea中找到下载插件，Install，重启Idea

file-->settings -->Plugins

2、一个测试java文件，里面有com包

3、在Idea中添加数据库 --------以Oracle数据库为例

下一步：按照红色表示的地方配置，其他的地方不用改变

测试ok后，点击Apply--OK就加好了

4、快速生成entity-service-mapper方法

第一步：以TEST表为例,右键Test表，选择MybatisX-Generator

第二步：进入一下页面，填写信息

第三步：点击Next后，检查路径，文件名，基础选项配置

下一步：点击Finish，就可以了

生成的包名，接口，实体类，实现类为：

5、查看生成的代码

entity包下的Test实体类

package com.entity;
import com.baomidou.mybatisplus.annotation.TableField;
import com.baomidou.mybatisplus.annotation.TableName;
import java.io.Serializable;
import lombok.Data;
/**
 * 
 * @TableName TEST
 */
@TableName(value ="TEST")
@Data
public class Test implements Serializable {
    /**
     * 
     */
    private Long id;
    /**
     * 
     */
    private String jan;
    /**
     * 
     */
    private String feb;
    /**
     * 
     */
    private String mar;
    /**
     * 
     */
    private String apr;
    /**
     * 
     */
    private String may;
    /**
     * 
     */
    private String jun;
    /**
     * 
     */
    private String jul;
    /**
     * 
     */
    private String aug;
    /**
     * 
     */
    private String sep;
    /**
     * 
     */
    private String oct;
    /**
     * 
     */
    private String nov;
    /**
     * 
     */
    private String dec;
    @TableField(exist = false)
    private static final long serialVersionUID = 1L;
}

mapper包下的TestMapper

package com.mapper;
import com.entity.Test;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
/**
 * @Entity com.entity.Test
 */
public interface TestMapper extends BaseMapper<Test> {
}

service包下的TestService

package com.service;
import com.entity.Test;
import com.baomidou.mybatisplus.extension.service.IService;
/**
 *
 */
public interface TestService extends IService<Test> {
}

service.impl 包下的TestServiceImpl

package com.service.impl;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.entity.Test;
import com.service.TestService;
import com.mapper.TestMapper;
import org.springframework.stereotype.Service;
/**
 *
 */
@Service
public class TestServiceImpl extends ServiceImpl<TestMapper, Test> implements TestService{
}

mapper配置文件TestMapper.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.mapper.TestMapper">
    <resultMap id="BaseResultMap" type="com.entity.Test">
            <result property="id" column="ID" jdbcType="DECIMAL"/>
            <result property="jan" column="JAN" jdbcType="VARCHAR"/>
            <result property="feb" column="FEB" jdbcType="VARCHAR"/>
            <result property="mar" column="MAR" jdbcType="VARCHAR"/>
            <result property="apr" column="APR" jdbcType="VARCHAR"/>
            <result property="may" column="MAY" jdbcType="VARCHAR"/>
            <result property="jun" column="JUN" jdbcType="VARCHAR"/>
            <result property="jul" column="JUL" jdbcType="VARCHAR"/>
            <result property="aug" column="AUG" jdbcType="VARCHAR"/>
            <result property="sep" column="SEP" jdbcType="VARCHAR"/>
            <result property="oct" column="OCT" jdbcType="VARCHAR"/>
            <result property="nov" column="NOV" jdbcType="VARCHAR"/>
            <result property="dec" column="DEC" jdbcType="VARCHAR"/>
    </resultMap>
    <sql id="Base_Column_List">
        ID,JAN,FEB,
        MAR,APR,MAY,
        JUN,JUL,AUG,
        SEP,OCT,NOV,
        DEC
    </sql>
</mapper>