eclipse中利用Maven逆向工程生成PO类以及mapper（mybatis）
2017-08-15 11:58
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1、在pom.xml的project>build里面添加如下代码，让maven环境支持mybatis-generator组件
<pluginManagement><plugins>
<plugin>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-maven-plugin</artifactId>
<version>1.3.2</version>
<configuration>
<configurationFile>src/main/resources/generator.xml</configurationFile>
<verbose>true</verbose>
<overwrite>true</overwrite>
</configuration>
<executions>
<execution>
<id>Generate MyBatis Artifacts</id>
<goals>
<goal>generate</goal>
</goals>
</execution>
</executions>
<dependencies>
<dependency>
<groupId>org.mybatis.generator</groupId>
<artifactId>mybatis-generator-core</artifactId>
<version>1.3.2</version>
</dependency>
</dependencies>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.19.1</version>
<configuration>
<skipTests>true</skipTests>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-resources-plugin</artifactId>
<version>3.0.1</version>
<configuration>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
</plugins>
</pluginManagement>
注：如果在dependencies中已经引入mysql-connector-java则不需加入以下dependency,反之加入
<dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.35</version> <scope>runtime</scope> </dependency>
2、generator.xml配置文件
需逆向的表：
逆向代码生成目录结构：
对应配置：
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfiguration PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN" "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
<generatorConfiguration>
<!-- 数据库驱动包位置 -->
<classPathEntry
location="E:\apache-maven-3.3.9\repo\mysql\mysql-connector-java\5.1.18\mysql-connector-java-5.1.18.jar" />
<context id="Tables" targetRuntime="MyBatis3">
<commentGenerator>
<!-- 是否去除自动生成的注释 true：是 ： false:否 -->
<property name="suppressAllComments" value="true" />
</commentGenerator>
<!-- 数据库链接URL、用户名、密码 -->
<jdbcConnection driverClass="com.mysql.jdbc.Driver"
connectionURL="jdbc:mysql://192.168.100.52:3306/dev_test" userId="数据库用户名"
password="数据库密码">
<!--<jdbcConnection driverClass="oracle.jdbc.driver.OracleDriver" connectionURL="jdbc:oracle:thin:@localhost:1521:orcl"
userId="msa" password="msa"> -->
</jdbcConnection>
<javaTypeResolver>
<!-- 默认false，把JDBC DECIMAL 和 NUMERIC 类型解析为 Integer， 为 true时把JDBC DECIMAL和NUMERIC类型解析为java.math.BigDecimal -->
<property name="forceBigDecimals" value="true" />
</javaTypeResolver>
<!-- 生成实体类的包名和位置，这里配置将生成的实体类放在com.loan.test.entity这个包下 -->
<javaModelGenerator targetPackage="com.loan.test.entity"
targetProject=".\src\main\java\">
<!-- enableSubPackages:是否让schema作为包的后缀 -->
<property name="enableSubPackages" value="true" />
<!-- 从数据库返回的值被清理前后的空格 -->
<property name="trimStrings" value="true" />
</javaModelGenerator>
<!-- 生成的SQL映射文件包名和位置，这里配置将生成的SQL映射文件放在com.loan.test.dao.xml这个包下 -->
<sqlMapGenerator targetPackage="com.loan.test.dao.xml"
targetProject=".\src\main\java\">
<!-- enableSubPackages:是否让schema作为包的后缀 -->
<property name="enableSubPackages" value="true" />
</sqlMapGenerator>
<!-- 生成DAO的包名和位置，这里配置将生成的dao类放在com.loan.test.dao.mapper这个包下 -->
<javaClientGenerator type="XMLMAPPER"
targetPackage="com.loan.test.dao.mapper" targetProject=".\src\main\java\">
<!-- enableSubPackages:是否让schema作为包的后缀 -->
<property name="enableSubPackages" value="true" />
</javaClientGenerator>
<!-- 要生成那些表(更改tableName和domainObjectName就可以) -->
<table tableName="test" domainObjectName="Test"
enableCountByExample="false" enableUpdateByExample="false"
enableDeleteByExample="false" enableSelectByExample="false"
selectByExampleQueryId="false" />
</context>
</generatorConfiguration>
3、运用maven指令生成逆向工程
项目右键->run as->maven build...,Goals:中输入mybatis-generator:generate.
4、刷新项目，结果
1）Test.java
package com.loan.test.entity;import java.math.BigDecimal;
public class Test {
private Integer id;
private String userName;
private Integer cardId;
private BigDecimal moneyAmount;
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName == null ? null : userName.trim();
}
public Integer getCardId() {
return cardId;
}
public void setCardId(Integer cardId) {
this.cardId = cardId;
}
public BigDecimal getMoneyAmount() {
return moneyAmount;
}
public void setMoneyAmount(BigDecimal moneyAmount) {
this.moneyAmount = moneyAmount;
}
}
2）TestMapper.java
4000package com.loan.test.dao.mapper;
import com.loan.test.entity.Test;
public interface TestMapper {
int deleteByPrimaryKey(Integer id);
int insert(Test record);
int insertSelective(Test record);
Test selectByPrimaryKey(Integer id);
int updateByPrimaryKeySelective(Test record);
int updateByPrimaryKey(Test record);
}
3）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.loan.test.dao.mapper.TestMapper">
<resultMap id="BaseResultMap" type="com.loan.test.entity.Test">
<id column="id" jdbcType="INTEGER" property="id" />
<result column="user_name" jdbcType="VARCHAR" property="userName" />
<result column="card_id" jdbcType="INTEGER" property="cardId" />
<result column="money_amount" jdbcType="DECIMAL" property="moneyAmount" />
</resultMap>
<sql id="Base_Column_List">
id, user_name, card_id, money_amount
</sql>
<select id="selectByPrimaryKey" parameterType="java.lang.Integer" resultMap="BaseResultMap">
select
<include refid="Base_Column_List" />
from test
where id = #{id,jdbcType=INTEGER}
</select>
<delete id="deleteByPrimaryKey" parameterType="java.lang.Integer">
delete from test
where id = #{id,jdbcType=INTEGER}
</delete>
<insert id="insert" parameterType="com.loan.test.entity.Test">
insert into test (id, user_name, card_id,
money_amount)
values (#{id,jdbcType=INTEGER}, #{userName,jdbcType=VARCHAR}, #{cardId,jdbcType=INTEGER},
#{moneyAmount,jdbcType=DECIMAL})
</insert>
<insert id="insertSelective" parameterType="com.loan.test.entity.Test">
insert into test
<trim prefix="(" suffix=")" suffixOverrides=",">
<if test="id != null">
id,
</if>
<if test="userName != null">
user_name,
</if>
<if test="cardId != null">
card_id,
</if>
<if test="moneyAmount != null">
money_amount,
</if>
</trim>
<trim prefix="values (" suffix=")" suffixOverrides=",">
<if test="id != null">
#{id,jdbcType=INTEGER},
</if>
<if test="userName != null">
#{userName,jdbcType=VARCHAR},
</if>
<if test="cardId != null">
#{cardId,jdbcType=INTEGER},
</if>
<if test="moneyAmount != null">
#{moneyAmount,jdbcType=DECIMAL},
</if>
</trim>
</insert>
<update id="updateByPrimaryKeySelective" parameterType="com.loan.test.entity.Test">
update test
<set>
<if test="userName != null">
user_name = #{userName,jdbcType=VARCHAR},
</if>
<if test="cardId != null">
card_id = #{cardId,jdbcType=INTEGER},
</if>
<if test="moneyAmount != null">
money_amount = #{moneyAmount,jdbcType=DECIMAL},
</if>
</set>
where id = #{id,jdbcType=INTEGER}
</update>
<update id="updateByPrimaryKey" parameterType="com.loan.test.entity.Test">
update test
set user_name = #{userName,jdbcType=VARCHAR},
card_id = #{cardId,jdbcType=INTEGER},
money_amount = #{moneyAmount,jdbcType=DECIMAL}
where id = #{id,jdbcType=INTEGER}
</update>
<resultMap id="BaseResultMap" type="com.loan.test.entity.Test">
<id column="id" jdbcType="INTEGER" property="id" />
<result column="user_name" jdbcType="VARCHAR" property="userName" />
<result column="card_id" jdbcType="INTEGER" property="cardId" />
<result column="money_amount" jdbcType="DECIMAL" property="moneyAmount" />
</resultMap>
<sql id="Base_Column_List">
id, user_name, card_id, money_amount
</sql>
<select id="selectByPrimaryKey" parameterType="java.lang.Integer" resultMap="BaseResultMap">
select
<include refid="Base_Column_List" />
from test
where id = #{id,jdbcType=INTEGER}
</select>
<delete id="deleteByPrimaryKey" parameterType="java.lang.Integer">
delete from test
where id = #{id,jdbcType=INTEGER}
</delete>
<insert id="insert" parameterType="com.loan.test.entity.Test">
insert into test (id, user_name, card_id,
money_amount)
values (#{id,jdbcType=INTEGER}, #{userName,jdbcType=VARCHAR}, #{cardId,jdbcType=INTEGER},
#{moneyAmount,jdbcType=DECIMAL})
</insert>
<insert id="insertSelective" parameterType="com.loan.test.entity.Test">
insert into test
<trim prefix="(" suffix=")" suffixOverrides=",">
<if test="id != null">
id,
</if>
<if test="userName != null">
user_name,
</if>
<if test="cardId != null">
card_id,
</if>
<if test="moneyAmount != null">
money_amount,
</if>
</trim>
<trim prefix="values (" suffix=")" suffixOverrides=",">
<if test="id != null">
#{id,jdbcType=INTEGER},
</if>
<if test="userName != null">
#{userName,jdbcType=VARCHAR},
</if>
<if test="cardId != null">
#{cardId,jdbcType=INTEGER},
</if>
<if test="moneyAmount != null">
#{moneyAmount,jdbcType=DECIMAL},
</if>
</trim>
</insert>
<update id="updateByPrimaryKeySelective" parameterType="com.loan.test.entity.Test">
update test
<set>
<if test="userName != null">
user_name = #{userName,jdbcType=VARCHAR},
</if>
<if test="cardId != null">
card_id = #{cardId,jdbcType=INTEGER},
</if>
<if test="moneyAmount != null">
money_amount = #{moneyAmount,jdbcType=DECIMAL},
</if>
</set>
where id = #{id,jdbcType=INTEGER}
</update>
<update id="updateByPrimaryKey" parameterType="com.loan.test.entity.Test">
update test
set user_name = #{userName,jdbcType=VARCHAR},
card_id = #{cardId,jdbcType=INTEGER},
money_amount = #{moneyAmount,jdbcType=DECIMAL}
where id = #{id,jdbcType=INTEGER}
</update>
</mapper>
配置完成！！
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