MyBatis的一个小程序（购物系统）
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MyBatis的一个小程序（购物系统）
mybatisConfig.xml
<?xml version="1.0" encoding="utf-8"?><!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd"><configuration><plugins><!-- 配置分pageHrlper分页插件 --><plugin interceptor="com.github.pagehelper.PageHelper"><!-- 设置数据库方言 --><property name="dialect" value="mysql"/></plugin></plugins></configuration>
beans.xml
<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"xmlns:aop="http://www.springframework.org/schema/aop"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:context="http://www.springframework.org/schema/context"xmlns:tx="http://www.springframework.org/schema/tx"xmlns:mvc="http://www.springframework.org/schema/mvc"xsi:schemaLocation="http://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context-4.3.xsdhttp://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd"> <!-- 数据库连接池 --> <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close"><property name="user" value="root"/><property name="password" value="root"/><property name="jdbcUrl" value="jdbc:mysql://localhost:3306/shop?useSSL=false&serverTimezone=UTC&characterEncoding=UTF-8"/><property name="driverClass" value="com.mysql.jdbc.Driver"/><property name="maxPoolSize" value="10"/><property name="minPoolSize" value="1"/></bean><!-- 配置sql会化工厂 --><bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"><property name="dataSource" ref="dataSource"/><property name="configLocation" value="classpath:mybatisConfig.xml"/> </bean><!-- 配置扫描包，加载mapper代理对象 --><bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"><property name="basePackage" value="com.shop.mapper"/><property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/></bean><!-- 配置spring事务管理器 --><bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource" /> </bean> <!-- 事务的行为 --> <tx:advice id="txAdvice" transaction-manager="transactionManager"> <tx:attributes> <tx:method name="save*" propagation="REQUIRED"/> <tx:method name="insert*" propagation="REQUIRED"/> <tx:method name="add*" propagation="REQUIRED"/> <tx:method name="create*" propagation="REQUIRED"/> <tx:method name="delete*" propagation="REQUIRED"/> <tx:method name="update*" propagation="REQUIRED"/> <tx:method name="find*" propagation="SUPPORTS" read-only="true"/> <tx:method name="select*" propagation="SUPPORTS" read-only="true"/> <tx:method name="get*" propagation="SUPPORTS" read-only="true"/> </tx:attributes> </tx:advice> <!-- 配置切面 --> <aop:config> <aop:advisor advice-ref="txAdvice" pointcut="execution(* com.shop.service.*.*(..))"/> </aop:config> <!-- 实际开发中handler的配置通过扫描的方式配置 ，可以扫描Controller、Service--><context:component-scan base-package="com.shop.controller,com.shop.service"/><!-- 使用该标签可以替代上面两个注解标签的配置，而且默认加载很多实用的参数绑定器 --><mvc:annotation-driven><!-- json数据中文乱码问题 --><mvc:message-converters> <bean class="org.springframework.http.converter.StringHttpMessageConverter"> <property name="supportedMediaTypes"> <list> <value>application/json;charset=UTF-8</value> </list> </property> </bean> </mvc:message-converters></mvc:annotation-driven><!-- 处理器适配器 --><bean class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"/><!-- 视图解析器 --><bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"/><!-- 上传文件 --><bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"><property name="defaultEncoding" value="UTF-8"/><property name="maxUploadSize" value="5242880"/></bean><!-- 配置url拦截映射，防止资源文件请求被拦截--><mvc:resources location="/css/" mapping="css/**"/><mvc:resources location="/js/" mapping="js/**"/><mvc:resources location="/images/" mapping="images/**"/><!-- 配置基于注解的事务管理器 --><tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true"/></beans>GoodsController.java
package com.shop.controller;import java.util.List;import javax.annotation.Resource;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.ResponseBody;import org.springframework.web.servlet.ModelAndView;import com.github.pagehelper.PageInfo;import com.shop.pojo.Goods;import com.shop.service.GoodsService;import com.shop.util.AjaxResult;@Controller()@RequestMapping("/goods/")public class GoodsController {@Resourceprivate GoodsService goodsService;@RequestMapping("manage")public String manage() {return "redirect:/goods/getGoodsList";}@RequestMapping("show")public String show() {return "redirect:/goods/showGoods";}@RequestMapping("showGoods")public ModelAndView showGoods(Integer page) {PageInfo pageInfo = goodsService.getGoodsList(page);ModelAndView model = new ModelAndView("/show.jsp", "goodsList", pageInfo.getList());model.addObject("pageInfo", pageInfo);return model;}// 用户验证成功，跳转到管理界面@RequestMapping("getGoodsList")public ModelAndView getGoodsList(Integer page) {PageInfo<Goods> pageInfo = goodsService.getGoodsList(page);ModelAndView model = new ModelAndView("/manage.jsp", "goodsList", pageInfo.getList());model.addObject("pageInfo", pageInfo);return model;}// 通过商品id号显示商品详细信息(购买界面)@RequestMapping("goodsInformation")public ModelAndView goodsInformation(Long id) {Goods goodsInformation = goodsService.getGoodsInformation(id);return new ModelAndView("/goods_information.jsp", "goodsInformation", goodsInformation);}// 得到最大商品编号，加1作为新加商品的id@RequestMapping("getNewGoodsId")@ResponseBodypublic AjaxResult getNewGoodsId() {Integer newId = goodsService.getNewGoodsId();return AjaxResult.build(200, String.valueOf(newId));}@RequestMapping("addGoods")public ModelAndView addGoods(String flag) {return new ModelAndView("/edit.jsp", "flag", flag);}@RequestMapping("saveGoods")@ResponseBodypublic AjaxResult saveGoods(Goods goods, String flag) {if (flag.equals("add")) {goodsService.addGoods(goods);} else if (flag.equals("edit")) {goodsService.updateGoods(goods);}return AjaxResult.ok();}@RequestMapping("editGoods")public ModelAndView editGoods(Long id, String flag) {Goods goods = goodsService.getGoodsById(id);ModelAndView model = new ModelAndView("/edit.jsp", "goods", goods);model.addObject("flag", flag);return model;}@RequestMapping("deleteGoods")public String deleteGoods(Long id) {goodsService.deleteGoodsById(id);return "redirect:/goods/getGoodsList";}// 通过用户搜索框内容查询商品@RequestMapping("queryGoodsByTitle")public ModelAndView queryGoodsByTitle(String title) {List<Goods> goodsList = goodsService.getGoodsListByTitle(title);ModelAndView model = new ModelAndView("/manage.jsp", "goodsList", goodsList);return model;}// 通过用户搜索框内容查询商品@RequestMapping("queryGoodsByTitleAtShowPage")public ModelAndView queryGoodsByTitleAtShowPage(String title) {List<Goods> goodsList = goodsService.getGoodsListByTitle(title);ModelAndView model = new ModelAndView("/show.jsp", "goodsList", goodsList);return model;}}LoginController.javapackage com.shop.controller;import javax.annotation.Resource;import javax.servlet.http.HttpServletRequest;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.ResponseBody;import com.shop.pojo.User;import com.shop.service.UserService;import com.shop.util.AjaxResult;//登录控制，将网站请求跳转到登录界面@Controller()@RequestMapping("/login/")public class LoginController {@Resource(name = "userService")private UserService userService;// 登录验证@RequestMapping("loginValidate")@ResponseBodypublic AjaxResult loginValidate(String username, String password, HttpServletRequest request) {User user = userService.getUserByUsername(username);if (user == null) {return AjaxResult.build(500, "用户不存在，请重新输入！");} else if (!user.getPassword().equals(password)) {return AjaxResult.build(400, "密码错误，请重新输入！");} else {request.getSession().setAttribute("user", user);return AjaxResult.ok();}}@RequestMapping("exitUser")@ResponseBody// 退出用户清空当前sessionpublic AjaxResult exitUser(HttpServletRequest request) {request.getSession().removeAttribute("user");return AjaxResult.ok();}// 跳转到登录界面@RequestMapping("login")public String login() {return "/login.jsp";}// 跳转到注册界面@RequestMapping("register")public String register() {return "/register.jsp";}// 用户注册验证@RequestMapping("registerValidate")@ResponseBodypublic AjaxResult registerValidate(User user,HttpServletRequest request) {User findUser = userService.getUserByUsername(user.getUsername());if (findUser == null) {user.setLevel(1);request.getSession().setAttribute("user", user);userService.addUser(user);return AjaxResult.ok();} else {return AjaxResult.build(400, "用户已存在");}}}GoodsMapper.javapackage com.shop.mapper;import com.shop.pojo.Goods;import com.shop.pojo.GoodsExample;import java.util.List;import org.apache.ibatis.annotations.Param;public interface GoodsMapper { int countByExample(GoodsExample example); int deleteByExample(GoodsExample example); int deleteByPrimaryKey(Long id); int insert(Goods record); int insertSelective(Goods record); List<Goods> selectByExample(GoodsExample example); Goods selectByPrimaryKey(Long id); int updateByExampleSelective(@Param("record") Goods record, @Param("example") GoodsExample example); int updateByExample(@Param("record") Goods record, @Param("example") GoodsExample example); int updateByPrimaryKeySelective(Goods record); int updateByPrimaryKey(Goods record); List<Goods> getGoodsList(); Integer getMaxNo(); List<Goods> getGoodsListByTitle(String title);}package com.shop.mapper;import com.shop.pojo.User;import com.shop.pojo.UserExample;import java.util.List;import org.apache.ibatis.annotations.Param;public interface UserMapper { int countByExample(UserExample example); int deleteByExample(UserExample example); int deleteByPrimaryKey(Integer id); int insert(User record); int insertSelective(User record); List<User> selectByExample(UserExample example); User selectByPrimaryKey(Integer id); int updateByExampleSelective(@Param("record") User record, @Param("example") UserExample example); int updateByExample(@Param("record") User record, @Param("example") UserExample example); int updateByPrimaryKeySelective(User record); int updateByPrimaryKey(User record);}GoodsMapper.xml
<?xml version="1.0" encoding="UTF-8" ?><!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" ><mapper namespace="com.shop.mapper.GoodsMapper" > <resultMap id="BaseResultMap" type="com.shop.pojo.Goods" > <id column="id" property="id" jdbcType="BIGINT" /> <result column="title" property="title" jdbcType="VARCHAR" /> <result column="price" property="price" jdbcType="REAL" /> <result column="number" property="number" jdbcType="INTEGER" /> <result column="sell_point" property="sellPoint" jdbcType="VARCHAR" /> </resultMap> <sql id="Example_Where_Clause" > <where > <foreach collection="oredCriteria" item="criteria" separator="or" > <if test="criteria.valid" > <trim prefix="(" suffix=")" prefixOverrides="and" > <foreach collection="criteria.criteria" item="criterion" > <choose > <when test="criterion.noValue" > and ${criterion.condition} </when> <when test="criterion.singleValue" > and ${criterion.condition} #{criterion.value} </when> <when test="criterion.betweenValue" > and ${criterion.condition} #{criterion.value} and #{criterion.secondValue} </when> <when test="criterion.listValue" > and ${criterion.condition} <foreach collection="criterion.value" item="listItem" open="(" close=")" separator="," > #{listItem} </foreach> </when> </choose> </foreach> </trim> </if> </foreach> </where> </sql> <sql id="Update_By_Example_Where_Clause" > <where > <foreach collection="example.oredCriteria" item="criteria" separator="or" > <if test="criteria.valid" > <trim prefix="(" suffix=")" prefixOverrides="and" > <foreach collection="criteria.criteria" item="criterion" > <choose > <when test="criterion.noValue" > and ${criterion.condition} </when> <when test="criterion.singleValue" > and ${criterion.condition} #{criterion.value} </when> <when test="criterion.betweenValue" > and ${criterion.condition} #{criterion.value} and #{criterion.secondValue} </when> <when test="criterion.listValue" > and ${criterion.condition} <foreach collection="criterion.value" item="listItem" open="(" close=")" separator="," > #{listItem} </foreach> </when> </choose> </foreach> </trim> </if> </foreach> </where> </sql> <sql id="Base_Column_List" > id, title, price, number, sell_point </sql> <select id="selectByExample" resultMap="BaseResultMap" parameterType="com.shop.pojo.GoodsExample" > select <if test="distinct" > distinct </if> <include refid="Base_Column_List" /> from goods <if test="_parameter != null" > <include refid="Example_Where_Clause" /> </if> <if test="orderByClause != null" > order by ${orderByClause} </if> </select> <select id="selectByPrimaryKey" resultMap="BaseResultMap" parameterType="java.lang.Long" > select <include refid="Base_Column_List" /> from goods where id = #{id,jdbcType=BIGINT} </select> <delete id="deleteByPrimaryKey" parameterType="java.lang.Long" > delete from goods where id = #{id,jdbcType=BIGINT} </delete> <delete id="deleteByExample" parameterType="com.shop.pojo.GoodsExample" > delete from goods <if test="_parameter != null" > <include refid="Example_Where_Clause" /> </if> </delete> <insert id="insert" parameterType="com.shop.pojo.Goods" > insert into goods (id, title, price, number, sell_point) values (#{id,jdbcType=BIGINT}, #{title,jdbcType=VARCHAR}, #{price,jdbcType=REAL}, #{number,jdbcType=INTEGER}, #{sellPoint,jdbcType=VARCHAR}) </insert> <insert id="insertSelective" parameterType="com.shop.pojo.Goods" > insert into goods <trim prefix="(" suffix=")" suffixOverrides="," > <if test="id != null" > id, </if> <if test="title != null" > title, </if> <if test="price != null" > price, </if> <if test="number != null" > number, </if> <if test="sellPoint != null" > sell_point, </if> </trim> <trim prefix="values (" suffix=")" suffixOverrides="," > <if test="id != null" > #{id,jdbcType=BIGINT}, </if> <if test="title != null" > #{title,jdbcType=VARCHAR}, </if> <if test="price != null" > #{price,jdbcType=REAL}, </if> <if test="number != null" > #{number,jdbcType=INTEGER}, </if> <if test="sellPoint != null" > #{sellPoint,jdbcType=VARCHAR}, </if> </trim> </insert> <select id="countByExample" parameterType="com.shop.pojo.GoodsExample" resultType="java.lang.Integer" > select count(*) from goods <if test="_parameter != null" > <include refid="Example_Where_Clause" /> </if> </select> <update id="updateByExampleSelective" parameterType="map" > update goods <set > <if test="record.id != null" > id = #{record.id,jdbcType=BIGINT}, </if> <if test="record.title != null" > title = #{record.title,jdbcType=VARCHAR}, </if> <if test="record.price != null" > price = #{record.price,jdbcType=REAL}, </if> <if test="record.number != null" > number = #{record.number,jdbcType=INTEGER}, </if> <if test="record.sellPoint != null" > sell_point = #{record.sellPoint,jdbcType=VARCHAR}, </if> </set> <if test="_parameter != null" > <include refid="Update_By_Example_Where_Clause" /> </if> </update> <update id="updateByExample" parameterType="map" > update goods set id = #{record.id,jdbcType=BIGINT}, title = #{record.title,jdbcType=VARCHAR}, price = #{record.price,jdbcType=REAL}, number = #{record.number,jdbcType=INTEGER}, sell_point = #{record.sellPoint,jdbcType=VARCHAR} <if test="_parameter != null" > <include refid="Update_By_Example_Where_Clause" /> </if> </update> <update id="updateByPrimaryKeySelective" parameterType="com.shop.pojo.Goods" > update goods <set > <if test="title != null" > title = #{title,jdbcType=VARCHAR}, </if> <if test="price != null" > price = #{price,jdbcType=REAL}, </if> <if test="number != null" > number = #{number,jdbcType=INTEGER}, </if> <if test="sellPoint != null" > sell_point = #{sellPoint,jdbcType=VARCHAR}, </if> </set> where id = #{id,jdbcType=BIGINT} </update> <update id="updateByPrimaryKey" parameterType="com.shop.pojo.Goods" > update goods set title = #{title,jdbcType=VARCHAR}, price = #{price,jdbcType=REAL}, number = #{number,jdbcType=INTEGER}, sell_point = #{sellPoint,jdbcType=VARCHAR} where id = #{id,jdbcType=BIGINT} </update> <select id="getGoodsList" resultMap="BaseResultMap"> select * from goods </select> <select id="getMaxNo" resultType="Integer"> SELECT MAX(id) FROM goods </select> <!-- 通过标题查询商品列表 --> <select id="getGoodsListByTitle" parameterType="String" resultMap="BaseResultMap"> SELECT * FROM goods WHERE title LIKE CONCAT('%',#{title},'%') LIMIT 0,8 </select></mapper>
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