springmvc复习笔记----springmvc最简单的第一个例子：RequestMapping试水

结构

 

 

用到的包

 

 

web.xml

<url-pattern>/</url-pattern>中可以换成其他的后缀*.do ，*. sb  ……

 

 <?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>springmvc01</display-name>
  <welcome-file-list>
<welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
  <servlet>
    <servlet-name>springDispatcherServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:spring-mvc.xml</param-value>
    </init-param>
  </servlet>
  <servlet-mapping>
    <servlet-name>springDispatcherServlet</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>
</web-app>

 

spring-mvc.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns="http://www.springframework.org/schema/beans"
        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-4.3.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context-4.3.xsd">
<!--   自动扫描加载注解的包 -->
<context:component-scan base-package="com.ij34.bean"/>
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> 
<property name="prefix" value="/WEB-INF/view/"></property>
<property name="suffix" value=".jsp" ></property>
</bean>
</beans>

 

 

 helloworld.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>
${message}
</body>
</html>

index.jsp

如果上面的web.xml中

<url-pattern>/</url-pattern>中可以换成其他的后缀*.do ，*. sb  ……

 下面的href里也要换成相应的后缀

<%@ 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>
<a href="hello">访问springMVC的helloworld</a>
</body>
</html>

Testhello.java

package com.ij34.bean;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class Testhello {
    @RequestMapping("/hello")      //对应于index.jsp的hello请求
 public String hello(Model model) {
     model.addAttribute("message", "我是springmvc");
    return "helloworld";                      //返回到view的helloworld.jsp
    // TODO Auto-generated method stub

}
}

 

 

posted on 2017-03-31 17:18  Honey_Badger  阅读(1329)  评论(0)  编辑  收藏  举报

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