eclipse maven 插件 自动生成mybatis dao、mapper 、pojo

摘要: generator.xml 生成mybatis代码的核心配置文件

1、首先，用eclipse创建一个maven项目。

2、其次，在pom文件下，加入如下插件配置：

  pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">  <modelVersion>4.0.0</modelVersion>  <groupId>com.liyi.test</groupId>  <artifactId>hello-mybatis</artifactId>  <packaging>war</packaging>  <version>0.0.1-SNAPSHOT</version>  <name>hello-mybatis Maven Webapp</name>  <url>http://maven.apache.org</url>  <dependencies>    <dependency>      <groupId>junit</groupId>      <artifactId>junit</artifactId>      <version>3.8.1</version>      <scope>test</scope>    </dependency>  </dependencies>  <build>    <finalName>hello-mybatis</finalName>      <pluginManagement>           <plugins>              <plugin>            <groupId>org.mybatis.generator</groupId>            <artifactId>mybatis-generator-maven-plugin</artifactId>            <version>1.3.2</version>            <configuration>                <configurationFile>src/main/resources/mybatis-generator/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>        </plugins>         </pluginManagement>     </build></project>

 3、从pom.xml中找到configurationFile标签，按照标签上的路径放入一下生成代码的核心配置文件，generator.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"> <generatorConfiguration>     <!-- 数据库驱动包位置 -->     <classPathEntry location="C:\Users\Administrator\.m2\repository\mysql\mysql-connector-java\5.1.21\mysql-connector-java-5.1.21.jar" />      <!-- <classPathEntry location="C:\oracle\product\10.2.0\db_1\jdbc\lib\ojdbc14.jar" />-->     <context id="DB2Tables" targetRuntime="MyBatis3">         <commentGenerator>             <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://localhost:3306/test" userId="root" password="1234">          <!--<jdbcConnection driverClass="oracle.jdbc.driver.OracleDriver" connectionURL="jdbc:oracle:thin:@localhost:1521:orcl" userId="msa" password="msa">-->         </jdbcConnection>         <javaTypeResolver>             <property name="forceBigDecimals" value="false" />         </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.liyi.test.domain这个包下 -->         <javaModelGenerator targetPackage="com.liyi.test.domain" targetProject="M:\workspace\hello-mybatis\src\main\java\">                                                                                              <property name="enableSubPackages" value="true" />             <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.liyi.test.mapping这个包下 -->         <sqlMapGenerator targetPackage="com.liyi.test.mapping" targetProject="M:\workspace\hello-mybatis\src\main\java\">             <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.liyi.test.mapping这个包下 -->         <javaClientGenerator type="XMLMAPPER" targetPackage="com.liyi.test.dao" targetProject="M:\workspace\hello-mybatis\src\main\java\">             <property name="enableSubPackages" value="true" />         </javaClientGenerator>         <!-- 要生成那些表(更改tableName和domainObjectName就可以) -->         <table tableName="tab_user" domainObjectName="User" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false" />     </context></generatorConfiguration>

4、cmd打开dos窗口，到项目的根路径，比如我的

      M：

      cd workspace/hello-mybatis/

       执行mvn mybatis-generator:generate(前提是你的电脑配置了maven的环境变量，可以用mvn命令)

        刷新项目就有以下效果了。