MyBatis自動產生實體類

MyBatis+MySQL產生實體類

需要的工具jar包

mybatis-generator-core-1.3.2.jar

mysql-connector-java-5.0.4.jar

第一步：編寫一個MybatisGeneratorUtil類

package com.test.utils;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 MybatisGeneratorUtil {        public static void main(String[] args) {          try {              System.out.println("start generator ...");              List<String> warnings = new ArrayList<String>();              boolean overwrite = true;              File configFile = new File(MybatisGeneratorUtil.class.getResource("/generator.xml").getFile());              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);              System.out.println("end generator!");          } catch (IOException e) {              e.printStackTrace();          } catch (XMLParserException e) {              e.printStackTrace();          } catch (InvalidConfigurationException e) {              e.printStackTrace();          } catch (SQLException e) {              e.printStackTrace();          } catch (InterruptedException e) {              e.printStackTrace();          }      }        }

第二步：編寫一個generator.xml類

<?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="D:\mysql-connector-java-5.0.4.jar" />      <context id="Mysql2Tables" targetRuntime="MyBatis3">      <jdbcConnection driverClass="com.mysql.jdbc.Driver"          connectionURL="jdbc:mysql://localhost:3306/datebase"          userId="root"          password="root">      </jdbcConnection>        <javaTypeResolver >        <property name="forceBigDecimals" value="false" />      </javaTypeResolver>        <javaModelGenerator targetPackage="com.test.model" targetProject="src">        <property name="enableSubPackages" value="true" />        <property name="trimStrings" value="true" />      </javaModelGenerator>        <sqlMapGenerator targetPackage="com.test.mapper"  targetProject="src">        <property name="enableSubPackages" value="true" />      </sqlMapGenerator>        <javaClientGenerator type="XMLMAPPER" targetPackage="com.test.dao"  targetProject="src">        <property name="enableSubPackages" value="true" />      </javaClientGenerator>      <table schema="test" tableName="t_student" domainObjectName="Tstudent" enableCountByExample="false" enableUpdateByExample="false"             enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false">      </table>      <table schema="test" tableName="t_class" domainObjectName="Tclass" enableCountByExample="false" enableUpdateByExample="false"         enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false">     </table>     <table schema="test" tableName="t_stu_class" domainObjectName="Tstclass" enableCountByExample="false" enableUpdateByExample="false"         enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false">     </table>  </context>  </generatorConfiguration>

其中<table>中的tableName代表資料庫中的表名、domainObjectName表示你要產生的實體類的名字；

<classPathEntry>中的location代表你的mysql-connector-java-5.0.4.jar地址;

targetPackage便是你要產生的檔案的路徑.

產生之後就是這樣子