数据库里面表的字段中带有“”_“下划线，我们知道插件默认的是将这些带有下划线的字段默认的变成“优美的驼峰式”的。表是肯定不能动的，实体类的字段也是非常多，改起来非常麻烦，所以就研究了下面这种依靠代码来实现的方式。

修改配置文件：

<?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
		location="E:\mysql-connector-java-5.1.29.jar" />
	<context id="DB2Tables" targetRuntime="MyBatis3">
		<commentGenerator>
			<property name="suppressAllComments" value="true" />
			<property name="suppressDate" value="true" />
		</commentGenerator>
 
		<jdbcConnection driverClass="com.mysql.jdbc.Driver"
			connectionURL="jdbc:mysql://172.16.14.40:3306/zhu"
			userId="zhu" password="zhu" />
 
		<javaTypeResolver>
			<property name="forceBigDecimals" value="false" />
			<!-- 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>
 
		<javaModelGenerator targetPackage="com.tt.domain"
			targetProject="MybatisT/src/main/java">
			<property name="enableSubPackages" value="true" />
			<property name="trimStrings" value="true" />
		</javaModelGenerator>
 
		<sqlMapGenerator targetPackage="com.tt.domain"
			targetProject="MybatisT/src/main/resources">
			<property name="enableSubPackages" value="false" />
		</sqlMapGenerator>
 
		<table tableName="zlpg_value" enableSelectByExample="false"
			enableDeleteByExample="false" enableCountByExample="false"
			selectByExampleQueryId="true" enableUpdateByExample="false">
			  <property name="useActualColumnNames" value="true"/>
			<!-- <generatedKey column="ID" sqlStatement="oracle" identity="true" /> -->
		</table>
	</context>
</generatorConfiguration>

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