现在主流的Web MVC框架除了Struts这个主力 外，其次就是Spring MVC了，因此这也是作为一名程序员需要掌握的主流框架，框架选择多了，应对多变的需求和业务时，可实行的方案自然就多了。不过要想灵活运用Spring MVC来应对大多数的Web开发，就必须要掌握它的配置及原理。

一、下载spring源包
spring地址：http://www.springsource.org/download
我下的是spring-framework-3.1.0.RELEASE-with-docs.zip
下载依赖包：spring-framework-3.0.5.RELEASE-dependencies.zip
注意官网上3.0.3版本以后同版本依赖包不提供下载

二、导入所需jar包
引入dist目录下除了下面三个其余所有包
org.springframework.web.struts-3.1.0.RELEASE.jar
org.springframework.spring-library-3.1.0.RELEASE.libd
org.springframework.web.portlet-3.1.0.RELEASE.jar
引入依赖包下com.springsource.org.apache.commons.logging-1.1.1.jar及com.springsource.org.aopalliance-1.0.0.jar

三、spring框架配置

1、web.xml配置

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"><!--配置Sring MVC的核心控制器DispatcherServlet --><servlet><servlet-name>dispatcherServlet</servlet-name><servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class><init-param>  <param-name>contextConfigLocation</param-name>  <param-value>classpath*:/spring-*.xml</param-value>  </init-param>  <load-on-startup>1</load-on-startup></servlet><!-- 为DispatcherServlet建立映射 --><servlet-mapping><servlet-name>dispatcherServlet</servlet-name><url-pattern>*.html</url-pattern></servlet-mapping><context-param> <param-name>log4jConfigLocation</param-name> <param-value>classpath:/log4j.properties</param-value> </context-param> <!-- 配置log4j.xml监听器 --> <listener> <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class> </listener> <!-- 解决工程编码过滤器 -->  <filter>  <filter-name>encodingFilter</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>encodingFilter</filter-name>  <url-pattern>/*</url-pattern>  </filter-mapping><display-name></display-name> <welcome-file-list><welcome-file>index.jsp</welcome-file></welcome-file-list>
</web-app>

2、应用上下文配置

spring-servlet.xml即配置用于开启基于注解的springMVC功能，照web.xml中设定，路径为WEB-INF下

3、数据源连接配制 spring-data.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"  xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd"><!-- 连接数据库配置 -->  <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">  <property name="driverClassName">  <value>${db.dirverClass}</value>  </property>  <property name="url">  <value>${db.url}</value>  </property>  <property name="username">  <value>${db.username}</value>  </property>  <property name="password">  <value>${db.password}</value>  </property>  </bean>
</beans>

4、业务逻辑控制层配置 spring-action.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"  xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd"><!-- 定义映射 --><bean id="urlMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping"><property name="mappings"><props><prop key="helloWorld.html">helloWorldAction</prop><prop key="userAction.html">userAction</prop></props></property></bean><!-- 定义控制器 --><bean id="helloWorldAction" class="com.examp.ch23.HelloWorldAction"><property name="helloWorld"><value>${helloWorld}</value></property><property name="helloWorld1"><value>${name}</value></property><property name="viewPage"><value>${toUrl}</value></property></bean><!-- 根据请求参数决定方法 userAction.html?action=toDetail -->  <bean id="userAction" class="com.examp.ch23.UserAction"><property name="userDao" ref="userDao"></property><!-- <property name="dao" ref="userDao"></property> --><property name="methodNameResolver">  <bean class="org.springframework.web.servlet.mvc.multiaction.ParameterMethodNameResolver">  <!-- 指定参数名为action -->  <property name="paramName" value="action" />  </bean>  </property></bean>
</beans>

5、编写DAO接口层

package com.examp.dao;import java.util.List;import com.examp.po.UserPO;/*** @author Administrator**/
public interface IUserDao {public List<UserPO> getAllUsers();public UserPO getUserByID(UserPO user);public void addUser(UserPO user);
}

package com.examp.dao.impl;import java.util.List;import org.springframework.orm.ibatis.support.SqlMapClientDaoSupport;import com.examp.dao.IUserDao;
import com.examp.po.UserPO;public class UserDaoImpl extends SqlMapClientDaoSupport implements IUserDao{public List<UserPO> getAllUsers() {return this.getSqlMapClientTemplate().queryForList("user.GET-ALL-USER");}public UserPO getUserByID(UserPO user) {return (UserPO) this.getSqlMapClientTemplate().queryForObject("user.GET-USER-BY-ID",user);}public void addUser(UserPO user) {//this.getSqlMapClientTemplate().insert("user.ADD-USER", user);}
}

6、编写业务实体类PO UserPO.java

package com.examp.po;import java.io.Serializable;public class UserPO implements Serializable {private String id;private String name;private String password;private int type;private String email;private String phone;private int sex;private String qq;public String getId() {return id;}public void setId(String id) {this.id = id;}public String getName() {return name;}public void setName(String name) {this.name = name;}public String getPassword() {return password;}public void setPassword(String password) {this.password = password;}public int getType() {return type;}public void setType(int type) {this.type = type;}public String getEmail() {return email;}public void setEmail(String email) {this.email = email;}public String getPhone() {return phone;}public void setPhone(String phone) {this.phone = phone;}public int getSex() {return sex;}public void setSex(int sex) {this.sex = sex;}public String getQq() {return qq;}public void setQq(String qq) {this.qq = qq;}
}

7、编写控制层 Action

package com.examp.ch23;import java.util.HashMap;
import java.util.List;
import java.util.Map;import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;import net.sf.json.JSONObject;import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.multiaction.MultiActionController;
import org.springframework.web.util.WebUtils;import com.examp.dao.IUserDao;
import com.examp.dao.UserDao;
import com.examp.po.UserPO;//public class UserAction implements Controller{
public class UserAction extends MultiActionController{private static final Log logger = LogFactory.getLog(UserAction.class);  private UserDao dao; private IUserDao userDao;private UserPO userPO;private String name;public String getName() {return name;}public void setName(String name) {this.name = name;}public ModelAndView list(HttpServletRequest request,HttpServletResponse response) throws Exception {logger.info("UserAction list 方法...");Map<String,Object> model = new HashMap<String,Object>();/*Collection<UserPO> list = dao.doquery();List<UserPO> users = new ArrayList<UserPO>();for (UserPO userPO : list) {  UserPO user = new UserPO();  user.setId(userPO.getId());  user.setName(userPO.getName());  user.setSex(userPO.getSex());user.setEmail(userPO.getEmail());  users.add(user);  } */ List<UserPO> result = userDao.getAllUsers();model.put("list", result);return new ModelAndView("userList",model);}public ModelAndView detail(HttpServletRequest req,HttpServletResponse res) throws Exception{String id = req.getParameter("id");UserPO userPO = null;if(userPO == null){userPO = new UserPO();}userPO.setId(id);Map<String,Object> model = new HashMap<String,Object>();userPO = userDao.getUserByID(userPO);model.put("user", userPO);return new ModelAndView("userDetail",model);}/*** 通向新增用户页面* @param req* @param res* @return* @throws Exception*/public ModelAndView toAddUser(HttpServletRequest req,HttpServletResponse res) throws Exception{Map<String,Object> model = new HashMap<String,Object>();return new ModelAndView("addUser",model);    }/*** 新增用户* @param req* @param res* @return* @throws Exception*//*public void addUser(HttpServletRequest req,HttpServletResponse res) throws Exception{String name = WebUtils.findParameterValue(req, "name");String email = WebUtils.findParameterValue(req, "email");String msg = "";logger.info("用户名: "+ name + "   邮件: " + email);if(userPO == null){userPO = new UserPO();userPO.setName(name);userPO.setEmail(email);}Map<String,Object> model = new HashMap<String,Object>();//userDao.addUser(userPO);msg = "1";//text 格式res.getWriter().print(msg);}**/public void addUser(HttpServletRequest req,HttpServletResponse res) throws Exception{String name = WebUtils.findParameterValue(req, "name");String email = WebUtils.findParameterValue(req, "email");String json = "",msg = "成功";logger.info("用户名: "+ name + "   邮件: " + email);if(userPO == null){userPO = new UserPO();}//json格式/*json = "{\"success\":true,\"msg\":\"1\"}";res.getWriter().print(json);*/Map<String, Object> map = new HashMap<String,Object>();map.put("status", msg);JSONObject result = JSONObject.fromObject(map);res.setContentType("text/html;charset=utf-8");res.getWriter().print(result.toString());}public UserDao getDao() {return dao;}public void setDao(UserDao dao) {this.dao = dao;}public IUserDao getUserDao() {return userDao;}public void setUserDao(IUserDao userDao) {this.userDao = userDao;}public UserPO getUserPO() {return userPO;}public void setUserPO(UserPO userPO) {this.userPO = userPO;}
}

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE sqlMapConfig PUBLIC "-//iBATIS.com//DTD SQL Map Config 2.0//EN" "http://ibatis.apache.org/dtd/sql-map-config-2.dtd">
<sqlMapConfig><settings cacheModelsEnabled="true" errorTracingEnabled="true"enhancementEnabled="true" lazyLoadingEnabled="true" useStatementNamespaces="true"statementCachingEnabled="true"/><sqlMap resource="sqlmap/sqlmap-t_user.xml"/>
</sqlMapConfig>

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE sqlMap PUBLIC "-//iBATIS.com//DTD SQL Map 2.0//EN" "http://ibatis.apache.org/dtd/sql-map-2.dtd"><sqlMap namespace="user"><typeAlias alias="userPO" type="com.examp.po.UserPO" /><resultMap class="userPO" id="user"><result property="id" column="id" /><result property="name" column="name" /><result property="email" column="email" /><result property="sex" column="sex" /></resultMap><select id="GET-ALL-USER" parameterClass="string" resultClass="userPO"><![CDATA[ SELECT T.ID,T.NAME,T.EMAIL,T.SEX FROM T_USER T]]></select><select id="GET-USER-BY-ID" parameterClass="userPO" resultClass="userPO"><![CDATA[ SELECT T.ID,T.NAME,T.EMAIL,T.SEX FROM T_USER TWHERE 1=1]]><isNotNull property="id" prepend="AND"><![CDATA[id = #id#]]></isNotNull></select><!-- <insert id="ADD-USER" parameterClass="userPO"><![CDATA[INSERT INTO t_user(id,name,password,nick_name,type,email,phone,sex,real_name,idno,head_portrait,province,city,is_auth,is_bound_phone,is_protected,bound_phone,reg_time,status,login_time,is_del,qq,birthday,office_tel,office_adr,office_zip,home_adr,home_zip,remark,operator,opt_time,regist_type,verify_status,auth_url_up,payment_pas,auth_url_dw,corporate_name,organization_code,rand_no,relate_sale_id,relate_service_id,reg_source,law_person,law_personnum,loan_comp_type,ip,class)VALUES(#id#,#name#,#password#,#nickName#,#type#,#email#,#phone#,#sex#,#realName#,#idNo#,#headPortrait#,#province#,#city#,#isAuth#,#isBoundPhone#,#isProtected#,#boundPhone#,#regTime#,#status#,#loginTime#,#isDel#,#qq#,#birthday#,#officeTel#,#officeAdr#,#officeZip#,#homeAdr#,#homeZip#,#remark#,#operator#,#optTime#,#registType#,#verifyStatus#,#authUrlUp#,#paymentPas#,#authUrlDw#,#corporateName#,#organizationCode#,#randNo#,#relateSaleId#,#relateServiceId#,#regSource#,#lawPerson#,#lawPersonnum#,#loanCompType#,#ip#,#userClass#)]]></insert> -->
</sqlMap>

9、编写JSP页面

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%@page import="com.examp.po.*" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html><head><base href="<%=basePath%>"><title>用户列表</title><meta http-equiv="pragma" content="no-cache"><meta http-equiv="cache-control" content="no-cache"><meta http-equiv="expires" content="0">    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"><meta http-equiv="description" content="This is my page"></head>
<%
String str = (String)request.getAttribute("helloWorld");
//List list = (List)request.getAttribute("list");
%><body><table><tr><td colspan="4" align="center"><a href="/ch23/userAction.html?action=toAddUser">添加用户</a></td></tr><tr><td>用户ID</td><td>用户名</td><td>性别</td><td>邮件</td></tr><c:forEach var="user" items="${list}"><tr><td><a href="/ch23/userAction.html?action=detail&id=${user.id}">${user.id}</a></td><td>${user.name}</td><td><c:if test="${user.sex == 0}">保密</c:if><c:if test="${user.sex == 1}">男</c:if><c:if test="${user.sex == 2}">女</c:if></td><td>${user.email}</td></tr></c:forEach></table></body>
</html>