SpringMVC、SpringMVC XML配置（纯XML方式）

1、引入SrpingMVC所使用的Java包：

cglib-nodep-2.1_3.jar、commons-logging.jar、spring-aspects-4.1.7.RELEASE.jar、spring-beans-4.1.7.RELEASE.jar、spring-context-4.1.7.RELEASE.jar

、spring-core-4.1.7.RELEASE.jar、spring-web-4.1.7.RELEASE.jar、spring-webmvc-4.1.7.RELEASE.jar

 

2、新建Web项目，配置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" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
  <display-name>springmvc</display-name>
  <!-- 配置Spring -->
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <!-- 配置SpringMVC的编码格式 -->
  <filter>  
    <filter-name>CharacterEncodingFilter</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>CharacterEncodingFilter</filter-name>  
     	<url-pattern>/*</url-pattern>  
  </filter-mapping> 
   <!-- 加载其他的配置文件 --> 
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>/WEB-INF/spring-servlet.xml</param-value>
  </context-param>  
   <!-- 配置Spring的前置控制器DispatcherServlet --> 
  <servlet>
        <servlet-name>spring</servlet-name>
            <servlet-class>
                org.springframework.web.servlet.DispatcherServlet
            </servlet-class>
        <load-on-startup>1</load-on-startup>
   </servlet>
   <!-- 配置Spring的url后缀 --> 
   <servlet-mapping>
        <servlet-name>spring</servlet-name>
        <url-pattern>*.do</url-pattern>
   </servlet-mapping>
</web-app>

3、配置spring-servlet.xml（基中的部分MVC的配置可另外再分一个bean.xml配置，这里为了方便统一放在一个里面）:

 

 

<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="http://www.springframework.org/schema/beans 
    http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context-4.1.xsd 
    http://www.springframework.org/schema/mvc
    http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd">
    
   <!-- controller方法调用规则：通过url中的method参数指定要执行的controller方法-->  
    <bean id="methodNameResolver" class="org.springframework.web.servlet.mvc.multiaction.ParameterMethodNameResolver">  
   	 	<property name="paramName" value="action" />  
    	<property name="defaultMethodName" value="view" />
	</bean>
	<!-- 配置MVC的前缀（prefix）和后缀（suffix） -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" /> 
       <!--  <property name="prefix" value="/WEB-INF/" /> -->
        <property name="suffix" value=".jsp" />
    </bean>
    <!-- 以下是 控制器的配置 -->
    <bean name="urlMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping" >
  		<property name="order" value="1" />
  		<property name="mappings">
   			<props>
   				<prop key="user.do">userController</prop>
   				<prop key="index.do">indexController</prop>
   			</props>
  		</property>
  	</bean>  	
	<bean name="userController"  class="cn.raffaello.controller.UserController">
		<property name="userIService" ref="userIService"></property>
	</bean>
	<bean name="indexController"  class="cn.raffaello.controller.IndexController" />
	<!-- ServiceBean的配置 -->
	<bean name="userIService" class="cn.raffaello.service.impl.UserServiceImpl" />
</beans>

 

4、新建Model，User:

 

public class User {
	private Integer id;
	private String name;
	public Integer getId() {
		return id;
	}
	public void setId(Integer id) {
		this.id = id;
	}
	public String getName() {
		return name;
	}
	public void setName(String name) {
		this.name = name;
	}
}

5、新建ServiceBean并实现一个模拟的数据保存添加操作：

 

 

public interface UserIService {
	void saveOrUpdate(User user);
	User getUserById(Integer id);
	void delete(Integer id);
	List<User> getUsers();
	Integer getNewId();
}

 

public class UserServiceImpl implements UserIService {
	private Map<Integer,Object> map=new HashMap<Integer,Object>();
	private Map<String,Integer> idCount=new HashMap<String,Integer>();
	@Override
	public void saveOrUpdate(User user) {
		map.put(user.getId(), user);
	}
	@Override
	public User getUserById(Integer id) {
		if(map.containsKey(id)){
			return (User)map.get(id);
		}
		return new User();
	}
	@Override
	public void delete(Integer id) {
		map.remove(id);
	}
	@Override
	public List<User> getUsers() {
		List<User> list=new ArrayList<User>();
		for(Integer key : map.keySet()){
			list.add((User)map.get(key));
		}
		return list;
	}
	@Override
	public Integer getNewId() {
		if(!idCount.containsKey("ids")){
			Integer id=1;
			idCount.put("ids", id);
			return id;
		}else{
			Integer id=idCount.get("ids");
			id=id+1;
			idCount.put("ids", id);
			return id;
		}
	}
}

 

6、新建控制器UserController：

 

public class UserController implements Controller{
	private UserIService userIService;
	@Override
	public ModelAndView handleRequest(HttpServletRequest req,
			HttpServletResponse res) throws Exception {
		String param="";
		param=req.getParameter("param");
		//新增控制器跳转
		if(param.trim().equals("add")){
			return new ModelAndView("/WEB-INF/userAdd");
		}else if(param.trim().equals("edit")){
			//编辑控制器跳转
			Integer id=-1;
			if(!req.getParameter("userId").trim().equals("")){
				id=Integer.parseInt(req.getParameter("userId").trim());
			}
			User user=userIService.getUserById(id);
			req.setAttribute("user", user);
			return new ModelAndView("/WEB-INF/userAdd");
		}else if(param.trim().equals("userList")){
			//列表页面跳转
			List<User> list=userIService.getUsers();
			req.setAttribute("userList", list);
			return new ModelAndView("/WEB-INF/userList");
		}else if(param.trim().equals("save")){
			//新增的保存操作
			User user=new User();
			String name=req.getParameter("name").trim();
			user.setId(userIService.getNewId());
			user.setName(name);
			userIService.saveOrUpdate(user);
			List<User> list=userIService.getUsers();
			req.setAttribute("userList", list);
			return new ModelAndView("/WEB-INF/userList");
		}else if(param.trim().equals("update")){
			//修改的保存操作
			Integer id=-1;
			if(!req.getParameter("userId").trim().equals("")){
				id=Integer.parseInt(req.getParameter("userId").trim());
			}
			String name=req.getParameter("name").trim();
			User user=userIService.getUserById(id);
			user.setName(name);
			userIService.saveOrUpdate(user);
			List<User> list=userIService.getUsers();
			req.setAttribute("userList", list);
			return new ModelAndView("/WEB-INF/userList");
		}else if(param.trim().equals("delete")){
			//删除操作
			Integer id=-1;
			if(!req.getParameter("userId").trim().equals("")){
				id=Integer.parseInt(req.getParameter("userId").trim());
			}
			userIService.delete(id);
			List<User> list=userIService.getUsers();
			req.setAttribute("userList", list);
			return new ModelAndView("/WEB-INF/userList");
		}else if(param.trim().equals("detail")){
			//详细用户页面
			Integer id=-1;
			if(!req.getParameter("userId").trim().equals("")){
				id=Integer.parseInt(req.getParameter("userId").trim());
				User user=userIService.getUserById(id);
				req.setAttribute("user", user);
			}
			return new ModelAndView("/WEB-INF/userDetail");
		}else if(param.trim().equals("list")){
			// list列表
			List<User> list=userIService.getUsers();
			req.setAttribute("userList", list);
			return new ModelAndView("/WEB-INF/userList");
		}
		return new ModelAndView("fail");
		//return forword("stu/studentList", context);  //同样也可以使用forword进行页面跳转
		//使用Map向前台输出数据时，获取操作同Request一样，可以在前台使用${名字}来获取如下例，可以使用${message}获取
		//Map<String,String> resultMap = new HashMap<String,String>();  
        //resultMap.put("message", "欢迎来到首页111");  
		//return new ModelAndView("index",resultMap);
	}
	public UserIService getUserIService() {
		return userIService;
	}
	public void setUserIService(UserIService userIService) {
		this.userIService = userIService;
	}
}

 

7、然后就是页面啦：

新增页面：

 

 <body>
  		<a href="user.do?param=userList">用户列表</a>
    	<h3>新增用户</h3>
    	<form action="user.do" method="post">
    		<c:if test="${user!=null }">
    			<input type="hidden" name="param" value="update" />
    		</c:if>
    		<c:if test="${user==null }">
    			<input type="hidden" name="param" value="save" />
    		</c:if>
    		<input type="hidden" name="userId" value="${user.id }" />
    		用户名：<input type="text" name="name" value="${user.name }"  />
    		<input type="submit" value="提交" />
    	</form>
  </body>

访问地址：http://localhost/user.do?param=add

 

修改页面也是此页面，访问地焉http://localhost/user.do?param=edit&userId=12

 

用户信息页面：

 

 <body>
  		<a href="user.do?param=userList">用户列表</a>
  		<h3>用户详细信息：</h3>
  		<ul>
  			<li>ID:${user.id }</li>
  			<li>用户名:${user.name }</li>
  		</ul>
  </body>

用户列表页面：

 

 

<body>
  		<a href="user.do?param=add">新增用户</a>
  		<h3>用户列表：</h3>
  		<table>
  			<tr>
  				<td>ID</td>
  				<td>姓名</td>
  				<td>操作</td>
  			</tr>
  			<c:forEach items="${userList }" var="user">
	    		<tr>
  				<td>${user.id }</td>
  				<td>${user.name }</td>
  				<td><a href="user.do?param=edit&userId=${user.id }">修改</a></td>
  				</tr>
	    	</c:forEach>
  		</table>
  </body>

下图是效果图：