使用MyBatis Generator自动生成代码

参考：MyBatis Generator API
http://generator.sturgeon.mopaas.com/

1、新建MAVEN项目

2、pom.xml中添加generator的依赖

<dependency>
	<groupId>org.mybatis.generator</groupId>  
	<artifactId>mybatis-generator-core</artifactId>  
	<version>1.3.2</version>  
</dependency>
...
...
...
<build>
	<plugins>
		<plugin>
			<groupId>org.mybatis.generator</groupId>
			<artifactId>mybatis-generator-maven-plugin</artifactId>
			<version>1.3.2</version>
			<configuration>
				<verbose>true</verbose>
				<overwrite>true</overwrite>
			</configuration>
			<dependencies>
				<dependency>
					<groupId>mygroup</groupId>
					<artifactId>myproject</artifactId>
					<version>${version}</version>
				</dependency>
			</dependencies>
		</plugin>
	</plugins>
</build>

3、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>
	<classPathEntry location="D:/Maven/repo/mysql/mysql-connector-java/5.1.30/mysql-connector-java-5.1.30.jar" />
	<context id="DB2Tables" targetRuntime="MyBatis3" defaultModelType="flat">
		<property name="autoDelimitKeywords" value="true"/>
		<property name="beginningDelimiter" value="`"/>
		<property name="endingDelimiter" value="`"/>
		
		<plugin type="org.mybatis.generator.plugins.EqualsHashCodePlugin" />
		<plugin type="org.mybatis.generator.plugins.RowBoundsPlugin"></plugin>

		<commentGenerator>
			<property name="suppressAllComments" value="true"/>
            <property name="suppressDate" value="true" />
		</commentGenerator>
		<jdbcConnection driverClass="com.mysql.jdbc.Driver"
						connectionURL="jdbc:mysql://localhost:3306/kv_pz?useUnicode=true"
						userId="root" password="">
		</jdbcConnection>
		<javaTypeResolver>
			<property name="forceBigDecimals" value="false"/>
		</javaTypeResolver>
		<javaModelGenerator targetPackage="com.mybatis.model" targetProject="src/main/java">
			<property name="enableSubPackages" value="true"/>
			<property name="trimStrings" value="true"/>
			<property name="rootClass" value="com.mybatis.model.Entity"/>
		</javaModelGenerator>
		<sqlMapGenerator targetPackage="sqlmap" targetProject="src/main/resources">
			<property name="enableSubPackages" value="true"/>
		</sqlMapGenerator>
		<javaClientGenerator type="XMLMAPPER" targetPackage="com.mybatis.dao" targetProject="src/main/java">
			<property name="enableSubPackages" value="true"/>
			<property name="rootInterface" value="com.mybatis.dao.BaseDao"/>
		</javaClientGenerator>
		<table tableName="config" domainObjectName="Config">
			<generatedKey column="id" sqlStatement="MySql" identity="true"/>
		</table>
	</context>
</generatorConfiguration>

4、代码生成
run as => maven build => 在弹出框中的goals处输入mybatis-generator:generate => OK

代码自动生成了

如果重复生成，mapper文件中的内容是不会被覆盖的，而是在最后面进行追加，所以如果连续生成两次，mapper文件就会出错，所以在生成前最好将原来生成的文件全部删除