SpringMVC实现简单应用

 我们都知道，servlet代码一般来说只能在一个servlet中做判断去实现一个servlet响应多个请求，

但是springMVC的话还是比较方便的，主要有两种方式去实现一个controller里能响应多个请求

第一种：继承MultiActionController类，这种方法已经废弃了，但是也能用

项目结构

具体配置

<?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:context="http://www.springframework.org/schema/context"  
    xmlns:mvc="http://www.springframework.org/schema/mvc"  xmlns:p="http://www.springframework.org/schema/p"  xsi:schemaLocation="http://www.springframework.org/schema/beans  http://www.springframework.org/schema/beans/spring-beans.xsd  http://www.springframework.org/schema/mvc  http://www.springframework.org/schema/mvc/spring-mvc.xsd  http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"  >  
    
  <context:component-scan base-package="controller" />
	<bean id="paramMethodResolver" class="org.springframework.web.servlet.mvc.multiaction.ParameterMethodNameResolver">
        <property name="paramName" value="cmd"></property>  <!-- value可以改成action，访问 的时候也要改成action=方法名 -->  
    </bean>
    <bean name="/pay" class="controller.MyController">
        <property name="methodNameResolver">
            <ref bean="paramMethodResolver"/>
        </property>
    </bean>
	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix"><value>/WEB-INF/pages</value></property>
		<property name="suffix"><value>.jsp</value></property>
	</bean>
</beans>

　

web.xml没改　

<web-app>
  
    <display-name>Spring MVC Application</display-name>
  
    <servlet>
        <servlet-name>mvc-dispatcher</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>
  
    <servlet-mapping>
        <servlet-name>mvc-dispatcher</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
  
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath*:mvc-dispatcher-servlet.xml</param-value>
    </context-param>
  
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
  
</web-app>

hello.jsp　

<%@ page language="java" import="java.util.*" 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">
<html>
  <head>
    <base href="<%=basePath%>">
    
    <title>My JSP 'index.jsp' starting page</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">
	<!--
	<link rel="stylesheet" type="text/css" href="styles.css">
	-->
  </head>
  
  <body>
    This is my JSP page. <br>
      本次调用方法是<b>${message }</b>
  </body>
</html>

控制器

package controller;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import net.sf.json.JSONObject;

import org.springframework.stereotype.Controller;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.multiaction.MultiActionController;

@SuppressWarnings("deprecation")
@Controller
public class MyController extends MultiActionController {
	public ModelAndView add(HttpServletRequest request,
            HttpServletResponse response) {
        System.out.println("----add----");
        return new ModelAndView("/hello", "message", "add");
    }
	public ModelAndView del(HttpServletRequest request,
            HttpServletResponse response) {
        System.out.println("----del----");
        return new ModelAndView("/hello", "message", "del");
    }
	
	//接收单个字符串
	public void update(HttpServletRequest request,
            HttpServletResponse response){
		String name=request.getParameter("name");
		System.out.println("name:"+name);
	}
}

　　

访问方式　

http://localhost:8080/MyWeb/pay?cmd=update&name=xxxx

后台输出了

name:xxxx

输入

http://localhost:8080/MyWeb/pay?cmd=add

前台显示为

This is my JSP page. 
本次调用方法是add

　　

第二种：就是最常用的用注解了　　

spring配置

<?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:context="http://www.springframework.org/schema/context"  
    xmlns:mvc="http://www.springframework.org/schema/mvc"  xmlns:p="http://www.springframework.org/schema/p"  xsi:schemaLocation="http://www.springframework.org/schema/beans  http://www.springframework.org/schema/beans/spring-beans.xsd  http://www.springframework.org/schema/mvc  http://www.springframework.org/schema/mvc/spring-mvc.xsd  http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"  >  
    <!-- 自动扫描，根据注解注入 -->
  <context:component-scan base-package="controller" />

	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix"><value>/WEB-INF/pages</value></property>
		<property name="suffix"><value>.jsp</value></property>
	</bean>
</beans>

　　

控制器　

package controller;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

@Controller
@RequestMapping("/pay")
public class MyController{
	@RequestMapping("/add")
	public ModelAndView add(HttpServletRequest request,
            HttpServletResponse response) {
        System.out.println("----add----");
        String name=request.getParameter("name");
        System.out.println(name);
        return new ModelAndView("/hello", "message", "add");
    }
	@RequestMapping("/del")
	public ModelAndView del(HttpServletRequest request,
            HttpServletResponse response) {
        System.out.println("----del----");
        String name=request.getParameter("name");
        System.out.println(name);
        return new ModelAndView("/hello", "message", "del");
    }

}

　　

调用方式

http://localhost:8080/MyWeb1/pay/add

前台结果

This is my JSP page. 
本次调用方法是add

　　

　　

　

posted @ 2016-06-16 16:58  Lost blog  阅读(393)  评论(0)  编辑  收藏  举报
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