今天学习ssm框架搭建，发现mybatis Generator自动穿件代码，实现，成功，在此做笔记，备份

• 开发工具用的是IDEA

• maven项目

• 项目结构
  

• 使用IDEA创建maven javaWeb项目，请自行百度

• maven配置

  <build>
    <finalName>ssm</finalName>

    <plugins>
      <!-- Mybatis generator代码生成插件 配置 -->
      <plugin>
        <groupId>org.mybatis.generator</groupId>
        <artifactId>mybatis-generator-maven-plugin</artifactId>
        <version>${plugin.mybatis.generator}</version>
        <configuration>
          <configurationFile>${mybatis.generator.generatorConfig.xml}</configurationFile>
          <overwrite>true</overwrite>
          <verbose>true</verbose>
        </configuration>
      </plugin>
    </plugins>

  </build>

  <properties>

    <!-- plugin setting -->
    <mybatis.generator.generatorConfig.xml>${basedir}/src/test/resources/generatorConfig.xml
    </mybatis.generator.generatorConfig.xml>
    <mybatis.generator.generatorConfig.properties>file:///${basedir}/src/test/resources/generatorConfig.properties
    </mybatis.generator.generatorConfig.properties>

    <!-- plugin versions -->
    <plugin.mybatis.generator>1.3.1</plugin.mybatis.generator>

    <!-- mybatis版本号 -->
    <mybatis.version>3.2.6</mybatis.version>
  </properties>

  <dependencies>

    <!--generator-->
    <dependency>
      <groupId>org.mybatis.generator</groupId>
      <artifactId>mybatis-generator-core</artifactId>
      <version>1.3.2</version>
      <type>jar</type>
      <scope>test</scope>
    </dependency>

    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <!-- 表示开发的时候引入，发布的时候不会加载此包 -->
      <scope>test</scope>
    </dependency>

    <!-- mybatis核心包 -->
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>${mybatis.version}</version>
    </dependency>

    <!-- 导入Mysql数据库链接jar包 -->
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>5.1.30</version>
    </dependency>
    <!-- 导入dbcp的jar包，用来在applicationContext.xml中配置数据库 -->
    <dependency>
      <groupId>commons-dbcp</groupId>
      <artifactId>commons-dbcp</artifactId>
      <version>1.2.2</version>
    </dependency>

  </dependencies>

• generatorConfig.xml

<?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">

<!-- 配置Run As Maven build : Goals 参数 : mybatis-generator:generate -Dmybatis.generator.overwrite=true -->
<!-- 配置 tableName,使用 Run As Maven build 生成 dao model 层 -->
<generatorConfiguration>
    <!-- 配置文件路径 -->
    <properties url="${mybatis.generator.generatorConfig.properties}"/>

    <!--数据库驱动包路径 -->
    <classPathEntry location="${drive.class.path}"/>

    <context id="DB2Tables" targetRuntime="MyBatis3">
        <!--关闭注释 -->
        <commentGenerator>
            <property name="suppressAllComments" value="true"/>
        </commentGenerator>

        <!--数据库连接信息 -->
        <jdbcConnection driverClass="${jdbc.driver}" connectionURL="${jdbc.url}" userId="${jdbc.username}"
                        password="${jdbc.password}">
        </jdbcConnection>

        <!--生成的model 包路径 -->
        <javaModelGenerator targetPackage="${model.package}" targetProject="${target.project}">
            <property name="enableSubPackages" value="ture"/>
            <property name="trimStrings" value="true"/>
        </javaModelGenerator>

        <!--生成xml mapper文件 路径 -->
        <sqlMapGenerator targetPackage="${xml.mapper.package}" targetProject="${target.project}">
            <property name="enableSubPackages" value="ture"/>
        </sqlMapGenerator>

        <!-- 生成的Dao接口 的包路径 -->
        <javaClientGenerator type="XMLMAPPER" targetPackage="${dao.package}" targetProject="${target.project}">
            <property name="enableSubPackages" value="ture"/>
        </javaClientGenerator>

        <!--对应数据库表名 -->
        <table tableName="user_t" ></table>

    </context>

</generatorConfiguration>

• generatorConfig.xml

# 数据库驱动jar 路径
drive.class.path=D:/work/workfile/maven/repository/mysql/mysql-connector-java/5.1.30/mysql-connector-java-5.1.30.jar
# 数据库连接参数
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://192.168.7.204:3306/sp_bit?useUnicode=true&characterEncoding=utf-8
jdbc.username=root
jdbc.password=123456

# 包路径配置
model.package=com.shijiakai.pojo
dao.package=com.shijiakai.dao
xml.mapper.package=com.shijiakai.mapping

target.project=src/main/java

• 至此，项目是搭建完毕了，接下来就只是运行句简单的代码就可以实现了
  

再IDEA右侧Maven projects窗口中，点击Execute Maven Goal按钮，再Gommand line输入框中输入 mybatis-generator:generate -Dmybatis.generator.overwrite=true 点击 Excute按钮即可，直接看图：

接下来就可以进行后续的工作了……