SpringMVC环境搭建

springmvc和stuts2同样是实现mvc的优秀框架，进行业务逻辑控制。最大的区别就是struts2通过filter拦截请求到Action，而spring用的是servlet获取请求到controller。再一个是springmvc不用过多进行配置，可以通过注解很方便简单的进行开发。

SpringMVC+Spring+Hibernate环境搭建：

1 导入对应jar包：

2 在web.xml配置Spring的监听器，指定配置。配置SpringMVC的核心Servlet,指定哪些请求由SpringMVC的Controller处理。同时经常设置Spring的一个编码过滤器，指定编码格式防止乱码；

web.xml

<?xml version="1.0" encoding="UTF-8"?><web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">  <display-name>SpringMVC</display-name>  <welcome-file-list>    <welcome-file>index.html</welcome-file>    <welcome-file>index.htm</welcome-file>    <welcome-file>index.jsp</welcome-file>    <welcome-file>default.html</welcome-file>    <welcome-file>default.htm</welcome-file>    <welcome-file>default.jsp</welcome-file>  </welcome-file-list>   <listener>    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>  </listener>  <context-param>    <param-name>contextConfigLocation</param-name>    <param-value>classpath:applicationContext.xml</param-value>  </context-param>  <servlet>    <servlet-name>springmvc</servlet-name>    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>    <load-on-startup>1</load-on-startup>  </servlet>  <servlet-mapping>    <servlet-name>springmvc</servlet-name>    <url-pattern>*.do</url-pattern>  </servlet-mapping>  <filter>    <filter-name>Character Encoding</filter-name>    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>    <init-param>      <param-name>encoding</param-name>      <param-value>UTF-8</param-value>    </init-param>  </filter>  <filter-mapping>    <filter-name>Character Encoding</filter-name>    <url-pattern>/*</url-pattern>  </filter-mapping></web-app>

3 指定结果视图，需要指定controller所在的包，配置在web.xml的同级目录下

springmvc-servlet.xml

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xmlns:p="http://www.springframework.org/schema/p"    xmlns:context="http://www.springframework.org/schema/context"    xsi:schemaLocation="        http://www.springframework.org/schema/beans        http://www.springframework.org/schema/beans/spring-beans.xsd        http://www.springframework.org/schema/context        http://www.springframework.org/schema/context/spring-context.xsd">                <context:component-scan base-package="com.mvc.controller"></context:component-scan><bean id="viewResolver"class="org.springframework.web.servlet.view.UrlBasedViewResolver"><property name="viewClass"value="org.springframework.web.servlet.view.JstlView" /><property name="prefix" value="/" /><property name="suffix" value=".jsp" /></bean>        </beans>

4 配置spring的applicationContext.xml.这里配置的是hibernate和spring整合的内容

applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"xmlns:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context"xsi:schemaLocation="       http://www.springframework.org/schema/beans       http://www.springframework.org/schema/beans/spring-beans.xsd       http://www.springframework.org/schema/tx       http://www.springframework.org/schema/tx/spring-tx.xsd       http://www.springframework.org/schema/aop       http://www.springframework.org/schema/aop/spring-aop.xsd       http://www.springframework.org/schema/context       http://www.springframework.org/schema/context/spring-context.xsd"><context:component-scan base-package="com.mvc.dao,com.mvc.service,com.mvc.entity"></context:component-scan><tx:annotation-driven transaction-manager="transactionManager" /><beanclass="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"><property name="locations"><value>classpath:c3p0.properties</value></property></bean><bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"><property name="driverClass" value="${driverClass}"></property><property name="jdbcUrl" value="${jdbcUrl}"></property><property name="user" value="${user}"></property><property name="password" value="${password}"></property></bean><bean id="sessionFactory"class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean"><property name="dataSource" ref="dataSource"></property><property name="packagesToScan"><list><value>com.mvc.entity</value></list></property><property name="hibernateProperties"><props><prop key="hibernate.dialect">org.hibernate.dialect.Oracle10gDialect</prop><prop key="hibernate.show_sql">true</prop><prop key="hibernate.hbm2ddl.auto">update</prop></props></property></bean><bean id="transactionManager"class="org.springframework.orm.hibernate3.HibernateTransactionManager"><property name="sessionFactory" ref="sessionFactory" /></bean></beans>

c3p0.properties

driverClass=oracle.jdbc.driver.OracleDriverjdbcUrl=jdbc:oracle:thin:@localhost:1521:XEuser=orclpassword=newsnews

5 dao层代码

package com.mvc.dao;import java.util.List;import com.mvc.entity.Goods;public interface GoodsDao {void save(Goods goods);List<Goods> findAll();Goods findById(Integer id);void update(Goods goods);void delete(Goods goods);}

package com.mvc.dao;import java.util.List;import javax.annotation.Resource;import org.hibernate.SessionFactory;import org.springframework.orm.hibernate3.support.HibernateDaoSupport;import org.springframework.stereotype.Repository;import com.mvc.entity.Goods;@Repository(value="goodsDao")public class GoodsDaoImpl extends HibernateDaoSupport implements GoodsDao {@Resourcepublic void setOne(SessionFactory sessionFactory){super.setSessionFactory(sessionFactory);}@Overridepublic void save(Goods goods) {this.getHibernateTemplate().save(goods);}@Overridepublic List<Goods> findAll() {// TODO Auto-generated method stubreturn this.getHibernateTemplate().find("from Goods g");}@Overridepublic Goods findById(Integer id) {// TODO Auto-generated method stubreturn this.getHibernateTemplate().get(Goods.class, id);}@Overridepublic void update(Goods goods) {this.getHibernateTemplate().update(goods);}@Overridepublic void delete(Goods goods) {this.getHibernateTemplate().delete(goods);}}

6 service层代码

package com.mvc.service;import java.util.List;import com.mvc.entity.Goods;public interface GoodsService {void save(Goods goods);List<Goods> findAll();Goods findById(Integer id);void update(Goods goods);void delete(Goods goods);}

package com.mvc.service;import java.util.List;import javax.annotation.Resource;import org.springframework.stereotype.Service;import org.springframework.transaction.annotation.Transactional;import com.mvc.dao.GoodsDao;import com.mvc.entity.Goods;@Service(value="goodsService")@Transactionalpublic class GoodsServiceImpl implements GoodsService {private GoodsDao goodsDao;public GoodsDao getGoodsDao() {return goodsDao;}@Resourcepublic void setGoodsDao(GoodsDao goodsDao) {this.goodsDao = goodsDao;}@Overridepublic void save(Goods goods) {goodsDao.save(goods);}@Overridepublic List<Goods> findAll() {// TODO Auto-generated method stubreturn goodsDao.findAll();}@Overridepublic Goods findById(Integer id) {// TODO Auto-generated method stubreturn goodsDao.findById(id);}@Overridepublic void update(Goods goods) {// TODO Auto-generated method stubgoodsDao.update(goods);}@Overridepublic void delete(Goods goods) {goodsDao.delete(goods);}}

7 controller层代码，这里是被重定向的 RequestMapping需要设置GET方式

package com.mvc.controller;import java.util.List;import javax.annotation.Resource;import org.springframework.stereotype.Controller;import org.springframework.ui.Model;import org.springframework.web.bind.annotation.ModelAttribute;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod;import com.mvc.entity.Goods;import com.mvc.service.GoodsService;@Controller@RequestMapping(value="/Goods")public class GoodsController {private GoodsService goodsService;@Resourcepublic void setGoodsService(GoodsService goodsService) {this.goodsService = goodsService;}@RequestMapping(value="/saveGoods.do",method=RequestMethod.POST)public String saveGoods(@ModelAttribute Goods goods){System.out.println("in save");goodsService.save(goods);return "redirect:findAllGoods.do";}@RequestMapping(value="/findAllGoods",method=RequestMethod.GET)public String findAllGoods(@ModelAttribute Goods goods,Model model){System.out.println("in findAll");List<Goods> goodss=goodsService.findAll();System.out.println(((Goods)goodss.get(0)).getGoodsName());model.addAttribute("goodss",goodss);return "goods_list";}@RequestMapping(value="/updateGoods.do",method=RequestMethod.GET)public String updateGoods(@ModelAttribute Goods goods,Model model){System.out.println("in update");Goods goods1=goodsService.findById(goods.getGoodsId());model.addAttribute("goods", goods1);return "goods_detail";}@RequestMapping(value="/updateGoodsDo.do",method=RequestMethod.POST)public String updateGoodsDo(@ModelAttribute Goods goods){System.out.println("in updatedo");goodsService.update(goods);return "redirect:findAllGoods.do";}@RequestMapping(value="/deleteGoods.do",method=RequestMethod.GET)public String deleteGoodsDo(@ModelAttribute Goods goods){System.out.println("in updatedo");Goods g=goodsService.findById(goods.getGoodsId());goodsService.delete(g);return "redirect:findAllGoods.do";}}

8 jsp,在springmvc的controller里，如果给类加上RequestMapping,jsp跳进去总是存在和struts2的namespace类似路径问题，解决方式相同。就是在jsp中加入

 <% 
    String path=request.getContextPath(); 
    String basePath=request.getScheme()+"://"+request.getServerName()+":" 
    +request.getServerPort()+path+"/"; 
 %>

<base href="<%=basePath %>"> 

来解决。

index.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"    pageEncoding="UTF-8"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>Insert title here</title></head><body><form action="Goods/findAllGoods.do" method="get"><input type="submit" value="go"></form></body></html>

goods_list.jsp

<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %><%@ page language="java" contentType="text/html; charset=UTF-8"    pageEncoding="UTF-8"%><%      String path=request.getContextPath();      String basePath=request.getScheme()+"://"+request.getServerName()+":"      +request.getServerPort()+path+"/";   %> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><base href="<%=basePath %>">  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>Insert title here</title></head><body><table><tr><td>商品名称</td><td>商品数量</td><td>编辑</td><td>删除</td></tr><c:forEach items="${goodss}" var="goods"><tr><td>${goods.goodsName}</td><td>${goods.goodsNumber}</td><td><a href="Goods/updateGoods.do?goodsId=${goods.goodsId }">编辑</a></td><td><a href="Goods/deleteGoods.do?goodsId=${goods.goodsId }">删除</a></td></tr></c:forEach></table><a href="goods_save.jsp">add</a></body></html>

goods_save.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"    pageEncoding="UTF-8"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>Insert title here</title></head><body><form action="Goods/saveGoods.do" method="post">商品名称：<input type="text" name="goodsName"/><br>商品数量：<input type="text" name="goodsNumber"/><br><input type="submit" value="go"></form></body></html>

goods_detail.jsp

<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %><%@ page language="java" contentType="text/html; charset=UTF-8"    pageEncoding="UTF-8"%> <%      String path=request.getContextPath();      String basePath=request.getScheme()+"://"+request.getServerName()+":"      +request.getServerPort()+path+"/";   %>     <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><base href="<%=basePath %>">  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>Insert title here</title></head><body><form action="Goods/updateGoodsDo.do" method="post"><input type="hidden" name="goodsId" value="${goods.goodsId }"/>商品名称：<input type="text" name="goodsName" value="${goods.goodsName }"/><br/>商品数量：<input type="text" name="goodsNumber" value="${goods.goodsNumber }"><br/><input type="submit" value="update"></form></body></html>