自动生成bean层dao层以及xml层工具

首先需要一个配置文件configuration.xml文件

<?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:数据库的JDBC驱动的jar包地址--><classPathEntry location="E:\xml\jar\mysql-connector-java-5.1.21.jar" /><context id="DB2Tables" targetRuntime="MyBatis3"><commentGenerator><!-- 是否去除自动生成的注释 true：是 ： false:否 --><property name="suppressAllComments" value="false" /><!--数据库连接的信息：驱动类、连接地址、用户名、密码 --></commentGenerator><!-- 控制数据库配置 --><jdbcConnection driverClass="com.mysql.jdbc.Driver"connectionURL="jdbc:mysql://localhost:3306/test?characterEncoding=utf8"userId="root" password="password" /><!--默认false，把JDBC DECIMAL 和 NUMERIC 类型解析为 Integer true，把JDBC DECIMAL 和NUMERIC 类型解析为java.math.BigDecimal--><javaTypeResolver><property name="forceBigDecimals" value="false" /></javaTypeResolver><!-- targetProject:自动生成实体类代码的位置 --><javaModelGenerator targetPackage="net.okdi.api.entity"targetProject="E:\xml\main"><!-- enableSubPackages:是否让schema作为包的后缀 --><property name="enableSubPackages" value="false" /><!-- 从数据库返回的值被清理前后的空格  --><property name="trimStrings" value="false" /></javaModelGenerator><!--<sqlMapGenerator> =>配置生成相应的实体Mapper.xml，对于Mapper3.X我们需要把type="XMLMAPPER"--><sqlMapGenerator targetPackage="net.okdi.api.dao"targetProject="E:\xml\main"><property name="enableSubPackages" value="false" /></sqlMapGenerator><!--<javaClientGenerator> => 配置生成相应的接口类，对应与Mapper.xml中的一系列CRUD方法SQL语句--><javaClientGenerator type="XMLMAPPER"targetPackage="net.okdi.api.dao" targetProject="E:\xml\main"><property name="enableSubPackages" value="false" /></javaClientGenerator><!-- tableName:用于自动生成代码的数据库表；domainObjectName:对应于数据库表的javaBean类名 --><table schema="test" tableName="sms_log"domainObjectName="SmsLog" enableCountByExample="false"enableUpdateByExample="false" enableDeleteByExample="false"enableSelectByExample="false" selectByExampleQueryId="false" /><table schema="test" tableName="sms_lxhl_key"domainObjectName="SmsLxhlKey" enableCountByExample="false"enableUpdateByExample="false" enableDeleteByExample="false"enableSelectByExample="false" selectByExampleQueryId="false" /></context></generatorConfiguration> 

然后就是一个工具类GenerateRun.java

package com.amssy.util;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 GenerateRun {/** * @param args */public static void main(String[] args) {// TODO Auto-generated method stubgenerateMbgConfiguration();}private static void generateMbgConfiguration() {/* * Mybatis自带Generator工具生成相应东西 */List<String> warnings = new ArrayList<String>();boolean overwrite = true;// 配置文件的位�?可以为项目路径也可以为磁盘的绝对路径File configFile = new File("./src/com/amssy/config/configuration.xml");ConfigurationParser cp = new ConfigurationParser(warnings);Configuration config = null;try {config = cp.parseConfiguration(configFile);} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (XMLParserException e) {// TODO Auto-generated catch blocke.printStackTrace();}DefaultShellCallback callback = new DefaultShellCallback(overwrite);try {MyBatisGenerator myBatisGenerator = new MyBatisGenerator(config, callback, warnings);myBatisGenerator.generate(null);} catch (InvalidConfigurationException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (SQLException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (InterruptedException e) {// TODO Auto-generated catch blocke.printStackTrace();}System.out.println("生成Mybatis配置成功?");}}

用到的jar包：

mybatis-3.2.2.jar
mybatis-generator-core-1.3.2.jar
mybatis-spring-1.2.2.jar
mysql-connector-java-5.1.21.jar