根据数据中的表生成实体和mapper接口及映射文件

1.创建一个Java工程，工程结构为

2.需要的jar包

链接：http://pan.baidu.com/s/1gd2jNDh 密码：pyux

3.GeneratorSqlmap

public class GeneratorSqlmap {

public void generator() throws Exception{

List<String> warnings = new ArrayList<String>();

boolean overwrite = true;

File configFile = new File( "generatorConfig.xml");

ConfigurationParser cp = new ConfigurationParser(warnings);

Configuration config = cp.parseConfiguration(configFile);

DefaultShellCallback callback

= new DefaultShellCallback(overwrite);

MyBatisGenerator myBatisGenerator

= new MyBatisGenerator(config,callback, warnings);

myBatisGenerator.generate( null);

}

public static void main(String[] args) throws Exception {

try {

GeneratorSqlmap generatorSqlmap = new GeneratorSqlmap();

generatorSqlmap.generator();

} catch (Exception e) {

e.printStackTrace();

}

}

}

4.log4j.properties

log4j.rootLogger=DEBUG, Console

#Console

log4j.appender.Console=org.apache.log4j.ConsoleAppender

log4j.appender.Console.layout =org.apache.log4j.PatternLayout

log4j.appender.Console.layout.ConversionPattern =%d [%t] %-5p [%c] - %m%n

log4j.logger.java.sql.ResultSet =INFO

log4j.logger.org.apache=INFO

log4j.logger.java.sql.Connection =DEBUG

log4j.logger.java.sql.Statement =DEBUG

log4j.logger.java.sql.PreparedStatement =DEBUG

5.generatorConfig.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>

<context id ="testTables" targetRuntime="MyBatis3">

<commentGenerator >

<!-- 是否去除自动生成的注释 true：是 ： false:否 -->

<property name ="suppressAllComments" value= "true" />

</commentGenerator>

<!--数据库连接的信息：驱动类、连接地址、用户名、密码 -->

<!--

<jdbcConnection driverClass="com.mysql.jdbc.Driver"

connectionURL=

"jdbc:mysql:// localhost:3306/mybatis " userId="root"

password=" mysql">

</jdbcConnection>

-->

<!--

-->

<jdbcConnection driverClass="oracle.jdbc.OracleDriver"

connectionURL= "jdbc:oracle:thin:@192.168.56.101:1521:orcl"

userId= "hfzj"

password= "hfzj">

</jdbcConnection>

<!-- 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:生成PO类的位置 

                        pc.hfzj.po为你生成的实体要放的位置 -->

<javaModelGenerator targetPackage ="pc.hfzj.po"

targetProject= ".\src">

<!-- 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="true" />

</javaModelGenerator>

<!-- targetProject:mapper映射文件生成的位置

                pc.hfzj.dao.mapper为你生成的mapper映射文件要放的位置 -- >

<sqlMapGenerator targetPackage ="pc.hfzj.dao.mapper"

targetProject= ".\src">

<!-- enableSubPackages:是否让schema作为包的后缀 -->

<property name ="enableSubPackages" value= "false" />

</sqlMapGenerator>

<!-- targetPackage：mapper接口生成的位置

                        pc.hfzj.dao.mapper为你生成的mapper接口要放的位置 --> 

<javaClientGenerator type ="XMLMAPPER"

targetPackage= "pc.hfzj.dao.mapper"

targetProject= ".\src">

<!-- enableSubPackages:是否让schema作为包的后缀 -->

<property name ="enableSubPackages" value= "false" />

</javaClientGenerator>

<!-- 指定数据库表  tableName位生成实体的表名 -->

<table schema ="" tableName="tableName" ></table>

<!-- 有些表的字段需要指定java类型

<table schema="" tableName="">

<columnOverride column="" javaType="" />

</table> -->

</context >

</generatorConfiguration>