JAVA中Mybatis连接oracle数据库自动生成代码工具

1.先将上面4个包放到lib文件夹下面

2.配置XML，放在SRC目录下

<?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ORACLE 驱动jar包路径.用了相对路径 -->
<classPathEntry location="WebRoot/WEB-INF/lib/ojdbc7.jar" />

<context id="yihaomen_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="oracle.jdbc.driver.OracleDriver"
connectionURL="jdbc:oracle:thin:@152.19.5.181:1521/gldbpdb1"
userId="Mybatis"
password="mylove">
</jdbcConnection>

<javaTypeResolver >
<property name="forceBigDecimals" value="false" />
</javaTypeResolver>

<!-- 数据表对应的model 层 ,targetProject为自动生成后文件所放路径 -->
<javaModelGenerator targetPackage="src.Model" targetProject="src">
<property name="enableSubPackages" value="false" />
<property name="trimStrings" value="true" />
</javaModelGenerator>

<!-- sql mapper 隐射配置文件 -->
<sqlMapGenerator targetPackage="src.Map" targetProject="src">
<property name="enableSubPackages" value="false" />
</sqlMapGenerator>

<!-- 在ibatis2 中是dao层，但在mybatis3中，其实就是mapper接口 -->
<javaClientGenerator type="XMLMAPPER" targetPackage="src.Client" targetProject="src">
<property name="enableSubPackages" value="false" />
</javaClientGenerator>

<!-- 要对那些数据表进行生成操作，必须要有一个. -->
<table schema="mybatis" tableName="category" domainObjectName="Category"
enableCountByExample="false" enableUpdateByExample="false"
enableDeleteByExample="false" enableSelectByExample="false"
selectByExampleQueryId="false">
</table>

</context>
</generatorConfiguration>

3.编写执行代码
package com.yihaomen.test;

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 GenMain {
public static void main(String[] args) {
List<String> warnings = new ArrayList<String>();
boolean overwrite = true;
String genCfg = "/mbgConfiguration.xml";
File configFile = new File(GenMain.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();
}
}
}
4.执行Main方法即可自动生成所需要的文件