MYBATIS文件生成工具的用法

lsyf8

　　在使用MYBATIS的时候，要新建Mapper类，Mapper配置文件和Model。这时可能使用MYBATIS提供的代码生成工具，无需要手动去添加。只需要一个XML模板文件和一个生成类，当然还要导入JAR包。

<?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>
<!-- 配置mysql 驱动jar包路径.用了绝对路径 -->
<classPathEntry location="E:\workspace_extjs\RealWork\WebRoot\WEB-INF\lib\mysql-connector-java-5.0.4-bin.jar" />
<context id="real_mysql_tables" targetRuntime="MyBatis3">
<!-- 为了防止生成的代码中有很多注释，比较难看，加入下面的配置控制 -->
<commentGenerator>
<property name="suppressAllComments" value="true" />
<property name="suppressDate" value="true" />
</commentGenerator>
<!-- 注释控制完毕 -->
<!-- 数据库连接 -->
<jdbcConnection driverClass="com.mysql.jdbc.Driver"
connectionURL="jdbc:mysql://127.0.0.1:3306/realwork?characterEncoding=utf8"
userId="root"
password="admin">
</jdbcConnection>
<javaTypeResolver >
<property name="forceBigDecimals" value="false" />
</javaTypeResolver>
<!-- 数据表对应的model层  -->
<javaModelGenerator targetPackage="com.realface.model" targetProject="src/system">
<property name="enableSubPackages" value="true" />
<property name="trimStrings" value="true" />
</javaModelGenerator>
<!-- sql mapper 隐射配置文件 -->
<sqlMapGenerator targetPackage="mapper.system"  targetProject="src/conf">
<property name="enableSubPackages" value="true" />
</sqlMapGenerator>
<!-- 在ibatis2 中是dao层，但在mybatis3中，其实就是mapper接口 -->
<javaClientGenerator type="XMLMAPPER" targetPackage="com.realface.mapper"  targetProject="src/system">
<property name="enableSubPackages" value="true" />
</javaClientGenerator>
<!-- 要对那些数据表进行生成操作，必须要有一个. -->
<table schema="realwork" tableName="rf_user" domainObjectName="User"
enableCountByExample="false" enableUpdateByExample="false"
enableDeleteByExample="false" enableSelectByExample="false"
selectByExampleQueryId="false">     
</table>
<table schema="realwork" tableName="rf_role" domainObjectName="Role"
enableCountByExample="false" enableUpdateByExample="false"
enableDeleteByExample="false" enableSelectByExample="false"
selectByExampleQueryId="false">     
</table>
<table schema="realwork" tableName="rf_resources" domainObjectName="Resources"
enableCountByExample="false" enableUpdateByExample="false"
enableDeleteByExample="false" enableSelectByExample="false"
selectByExampleQueryId="false">     
</table>
<table schema="realwork" tableName="rf_userrole" domainObjectName="UserRole"
enableCountByExample="false" enableUpdateByExample="false"
enableDeleteByExample="false" enableSelectByExample="false"
selectByExampleQueryId="false">     
</table>
<table schema="realwork" tableName="rf_roleresources" domainObjectName="RoleResources"
enableCountByExample="false" enableUpdateByExample="false"
enableDeleteByExample="false" enableSelectByExample="false"
selectByExampleQueryId="false">     
</table>
</context>
</generatorConfiguration>
package com.realface.generater;
import java.io.File;
import java.io.IOException;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import org.mybatis.generator.api.MyBatisGenerator;
import org.mybatis.generator.config.Configuration;
import org.mybatis.generator.config.xml.ConfigurationParser;
import org.mybatis.generator.exception.InvalidConfigurationException;
import org.mybatis.generator.exception.XMLParserException;
import org.mybatis.generator.internal.DefaultShellCallback;
public class GenIbatisFileUtil {
public static void main(String []args){
GenIbatisFileUtil.generate("systemConfiguration.xml");
}
public static void generate(String filepath){
List<String> warnings = new ArrayList<String>();
boolean overwrite = true;
String genCfg = filepath;
File configFile = new File(GenIbatisFileUtil.class.getResource(genCfg).getFile());
ConfigurationParser cp = new ConfigurationParser(warnings);
Configuration config = null;
try {
config = cp.parseConfiguration(configFile);
} catch (IOException e) {
e.printStackTrace();
} catch (XMLParserException e) {
e.printStackTrace();
}
DefaultShellCallback callback = new DefaultShellCallback(overwrite);
MyBatisGenerator myBatisGenerator = null;
try {
myBatisGenerator = new MyBatisGenerator(config, callback, warnings);
} catch (InvalidConfigurationException e) {
e.printStackTrace();
}
try {
myBatisGenerator.generate(null);
} catch (SQLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}