<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE generatorConfigurationPUBLIC "-//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><!-- 是否去除自動(dòng)生成的注釋 true：是 ： false:否 --><property name="suppressAllComments" value="true" /></commentGenerator><!--數(shù)據(jù)庫(kù)連接的信息：驅(qū)動(dòng)類、連接地址、用戶名、密碼 --><jdbcConnection driverClass="com.mysql.jdbc.Driver"connectionURL="jdbc:mysql://localhost:3306/mybatis" userId="root"password="1234"></jdbcConnection><!-- <jdbcConnection driverClass="oracle.jdbc.OracleDriver"connectionURL="jdbc:oracle:thin:@127.0.0.1:1521:yycg" userId="yycg"password="yycg"></jdbcConnection> --><!-- 默認(rèn)false，把JDBC DECIMAL 和 NUMERIC 類型解析為 Integer，為 true時(shí)把JDBC DECIMAL 和 NUMERIC 類型解析為java.math.BigDecimal --><javaTypeResolver><property name="forceBigDecimals" value="false" /></javaTypeResolver><!-- targetProject:生成PO類的位置 --><javaModelGenerator targetPackage="cn.edu.hpu.ssm.po"targetProject="./src"><!-- enableSubPackages:是否讓schema作為包的后綴 --><property name="enableSubPackages" value="false" /><!-- 從數(shù)據(jù)庫(kù)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 --><sqlMapGenerator targetPackage="cn.edu.hpu.ssm.mapper" targetProject="./src"><!-- enableSubPackages:是否讓schema作為包的后綴 --><property name="enableSubPackages" value="false" /></sqlMapGenerator><!-- targetPackage：mapper接口生成的位置 --><javaClientGenerator type="XMLMAPPER"targetPackage="cn.edu.hpu.ssm.mapper" targetProject="./src"><!-- enableSubPackages:是否讓schema作為包的后綴 --><property name="enableSubPackages" value="false" /></javaClientGenerator><!-- 指定數(shù)據(jù)庫(kù)表 --><table tableName="items"></table><table tableName="orders"></table><table tableName="orderdetail"></table><table tableName="user"></table><!-- <table schema="" tableName="sys_user"></table><table schema="" tableName="sys_role"></table><table schema="" tableName="sys_permission"></table><table schema="" tableName="sys_user_role"></table><table schema="" tableName="sys_role_permission"></table> --><!-- 有些表的字段需要指定java類型<table schema="" tableName=""><columnOverride column="" javaType="" /></table> --></context></generatorConfiguration>

import java.io.File;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.internal.DefaultShellCallback;public class GeneratorSqlmap {public void generator() throws Exception{List<String> warnings = new ArrayList<String>();boolean overwrite = true;//加載配置文件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();}}}

package cn.edu.hpu.ssm.test;import static org.junit.Assert.fail;import java.util.Date;import java.util.List;import org.junit.Before;import org.junit.Test;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;import cn.edu.hpu.ssm.mapper.ItemsMapper;import cn.edu.hpu.ssm.po.Items;import cn.edu.hpu.ssm.po.ItemsExample;public class ItemsMapperTest {private ApplicationContext applicationContext;private ItemsMapper itemsMapper;//注解Before是在執(zhí)行本類所有測(cè)試方法之前先調(diào)用這個(gè)方法@Beforepublic void setup() throws Exception{applicationContext=new ClassPathXmlApplicationContext("classpath:spring/applicationContext.xml");itemsMapper=(ItemsMapper)applicationContext.getBean("itemsMapper");}//根據(jù)主鍵刪除@Testpublic void testDeleteByPrimaryKey() {fail("Not yet implemented");}//插入@Testpublic void testInsert() {Items items=new Items();items.setName("iPhone-5S");items.setPrice(3999f);items.setDetail("正品行貨");items.setPic("sdasd.jpg");items.setCreatetime(new Date());itemsMapper.insert(items);}//自定義條件來(lái)查詢@Testpublic void testSelectByExample() {ItemsExample itemsExample=new ItemsExample();//通過(guò)Criteria構(gòu)造查詢條件ItemsExample.Criteria criteria=itemsExample.createCriteria();criteria.andNameEqualTo("電視機(jī)");//可能返回多條記錄List<Items> list=itemsMapper.selectByExample(itemsExample);for (int i = 0; i < list.size(); i++) {Items it=list.get(i);System.out.println(it.getId()+":"+it.getName());}}//根據(jù)主鍵來(lái)查詢@Testpublic void testSelectByPrimaryKey() {Items items=itemsMapper.selectByPrimaryKey(1);System.out.println(items.getName());}//更新數(shù)據(jù)@Testpublic void testUpdateByPrimaryKey() {//對(duì)所有字段進(jìn)行更新，需要先查詢出來(lái)再更新Items items = itemsMapper.selectByPrimaryKey(1); items.setName("iPhone"); itemsMapper.updateByPrimaryKey(items);//如果傳入字段不空為才更新，在批量更新中使用此方法，不需要先查詢?cè)俑?/itemsMapper.updateByPrimaryKeySelective(record);}}