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一个简单的springmvc框架写的 helloworld例子

2017-08-22 13:37 411 查看
一个简单的springmvc框架写的 helloworld例子

项目结构图



本项目，是在eclipse上写的，服务器是tomcat7.0,jdk版本1.7

1.在eclipse下创建一个dynamic web project项目

2.添加需要的jar到lib下，然后选中所有的jar包，右键 Build Path--
add to build path 如下图



3.配置web.xml文件

<?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_2_5.xsd" id="WebApp_ID" version="2.5">
<!-- SpringMVC的前端控制器 -->
<servlet>
<servlet-name>springDispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 设置自己定义的控制器xml文件 -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<!-- Spring MVC配置文件结束 -->

<!-- 拦截设置 -->
<servlet-mapping>
<servlet-name>springDispatcherServlet</servlet-name>
<!-- 由SpringMVC拦截所有请求 -->
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>


4.配置springmvc.xml文件

<?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"
xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">

<!-- 标签将使用启动Spring MVC的注解扫描功能 -->
<context:component-scan base-package="com.hui" />

<!-- 默认的注解映射的支持 -->
<mvc:annotation-driven/>

<!-- 配置视图解析器 如何把handler 方法返回值解析为实际的物理视图 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name = "prefix" value="/WEB-INF/views/"></property>
<property name = "suffix" value = ".jsp"></property>
</bean>
</beans>
5.写HelloWorld类

package com.hui;

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.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;

@Controller
public class HelloWorld {

@RequestMapping(value="/success", method = {RequestMethod.GET})
public ModelAndView  successModel(HttpServletRequest request, HttpServletResponse reponse) {
ModelAndView mav=new ModelAndView();
request.setAttribute("message","abc");
mav.addObject("success");
return mav;

}

}
6.写index.jsp页面

<%@ 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>主页面</title>
</head>
<body>

<a href="success"><h1>hello</h1></a>

</body>
</html>
7.写success.jsp页面

<%@ 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>this is success jsp</title>
</head>
<body>
${message}
</body>
</html>

启动项目后效果图如下：

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