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搭建 spring-mvc

 
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搭建 spring-mvc

1. 创建web project

2. 导入 spring

3. web.xml

<?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">

<welcome-file-list>

<welcome-file>index.jsp</welcome-file>

</welcome-file-list>

<context-param>

<param-name>contextConfigLocation</param-name>

<param-value>

/WEB-INF/applicationContext.xml

</param-value>

</context-param>

<listener>

<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>

</listener>

<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>*.do</url-pattern>

</filter-mapping>

<servlet>

<servlet-name>view</servlet-name> <!-- 这里的名字 要和 配置文件吻合 view-servlet.xml -->

<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

<load-on-startup>1</load-on-startup>

</servlet>

<servlet-mapping>

<servlet-name>view</servlet-name>

<url-pattern>*.do</url-pattern>

</servlet-mapping>

<jsp-config>

<taglib>

<taglib-uri>http://java.sun.com/jsp/jstl/core</taglib-uri>

<taglib-location>/WEB-INF/tld/c.tld</taglib-location>

</taglib>

<taglib>

<taglib-uri>http://java.sun.com/jsp/jstl/fmt</taglib-uri>

<taglib-location>/WEB-INF/tld/fmt.tld</taglib-location>

</taglib>

</jsp-config>

</web-app>

4. 添加 对应的DispatcherServlet 配置 web.xml 对应/WEB-INF/view-servlet.xml

<?xml version="1.0" encoding="UTF-8" ?>

<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">

<beans>

<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">

<property name="prefix" value="/WEB-INF/jsp/" />

<property name="suffix" value=".jsp" />

</bean>

<bean id="simpleUrlHandlerMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">

<property name="mappings">

<props>

<prop key="/hello.do">helloController</prop>

<prop key="/managehello.do">managehelloController</prop>

</props>

</property>

</bean>

<bean id="helloController" class="com.demo.HelloController">

</bean>

<bean id="managehelloController" class="com.demo.ManageHelloController"></bean>

</beans>

5. /WEB-INF 建立 jsp 资源文件夹

6. 创建 测试 Controller

package com.demo;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.springframework.web.servlet.ModelAndView;

import org.springframework.web.servlet.mvc.Controller;

public class HelloController implements Controller {

public ModelAndView handleRequest(HttpServletRequest request,

HttpServletResponse response) throws Exception {

request.setAttribute("msg", "Hello!");

return new ModelAndView("hello"); //注意

}

package com.demo;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.springframework.web.servlet.ModelAndView;

import org.springframework.web.servlet.mvc.Controller;

public class ManageHelloController implements Controller {

public ModelAndView handleRequest(HttpServletRequest request,

HttpServletResponse response) throws Exception {

request.setAttribute("msg", "Hello!");

return new ModelAndView("manage/hello"); //注意

}

}

7. 测试页面

/WEB-INF/jsp

hello.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

<%

String path = request.getContextPath();

String msg = (String)request.getAttribute("msg");

%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

<head>

<title>Hello World!</title>

</head>

<body>

<%=msg%>

</body>

</html>

/WEB-INF/jsp/manage

hello.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

<%

String path = request.getContextPath();

String msg = (String)request.getAttribute("msg");

%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

<head>

<title>Hello World!</title>

</head>

<body>

manage/<%=msg%>

</body>

</html>

index.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>

<%

String path = request.getContextPath();

%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>

<head>

<title>spring-mvc</title>

</head>

<body>

<a href="<%=path%>/hello.do">hello.do</a><hr/>

<a href="<%=path%>/managehello.do">managehello.do</a>

</body>

</html>

8. 测试

http://localhost:8080/spring-mvc/

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