web框架之Spring-MVC环境搭建

spring框架jar包

1、下载spring源包

下载：spring-framework-3.1.0.RELEASE-with-docs.zip
下载依赖包：spring-framework-3.0.5.RELEASE-dependencies.zip
注意官网上3.0.3版本以后同版本依赖包不提供下载

 

2、导入所需jar包

引入dist目录下除了下面三个其余所有包
org.springframework.web.struts-3.1.0.RELEASE.jar
org.springframework.spring-library-3.1.0.RELEASE.libd
org.springframework.web.portlet-3.1.0.RELEASE.jar
引入依赖包下com.springsource.org.apache.commons.logging-1.1.1.jar及com.springsource.org.aopalliance-1.0.0.jar

 

更复杂的业务用到的jar 搭建一个简单环境可以暂不使用

org.springframework.aop-3.1.4.RELEASE.jar

org.springframework.asm-3.1.4.RELEASE.jar

org.springframework.aspects-3.1.4.RELEASE.jar

org.springframework.beans-3.1.4.RELEASE.jar

org.springframework.context-3.1.4.RELEASE.jar

org.springframework.context.support-3.1.4.RELEASE.jar

org.springframework.core-3.1.4.RELEASE.jar

org.springframework.expression-3.1.4.RELEASE.jar

org.springframework.jdbc-3.1.4.RELEASE.jar

org.springframework.orm-3.1.4.RELEASE.jar

org.springframework.transaction-3.1.4.RELEASE.jar

org.springframework.web-3.1.4.RELEASE.jar

org.springframework.web.servlet-3.1.4.RELEASE.jar

 

spring框架配置

1、web.xml配置

<?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">

<context-param>

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

        <!-- 应用上下文配置文件 -->

        <param-value>/WEB-INF/spring-servlet.xml</param-value>

  </context-param>

<listener>

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

 </listener>

 <!-- 配置spring核心servlet -->

<servlet>

<servlet-name>spring</servlet-name>

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

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

</servlet>

<!-- url-pattern配置为/，不带文件后缀，会造成其它静态文件(js，css等)不能访问。如配为*.do，则不影响静态文件的访问 -->

<servlet-mapping>

<servlet-name>spring</servlet-name>

<url-pattern>/</url-pattern>

</servlet-mapping>

 

</web-app>

 

2、应用上下文配置
spring-servlet.xml即配置用于开启基于注解的springMVC功能，照web.xml中设定，路径为WEB-INF下

<beans xmlns="http://www.springframework.org/schema/beans"

 xmlns:context="http://www.springframework.org/schema/context"

 xmlns:p="http://www.springframework.org/schema/p"

 xmlns:mvc="http://www.springframework.org/schema/mvc"

 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

 xsi:schemaLocation="http://www.springframework.org/schema/beans

      http://www.springframework.org/schema/beans/spring-beans-3.0.xsd

      http://www.springframework.org/schema/context

      http://www.springframework.org/schema/context/spring-context.xsd

      http://www.springframework.org/schema/mvc

      http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">

     <!-- 启动注解驱动的Spring MVC功能，注册请求url和注解POJO类方法的映射-->

     <mvc:annotation-driven />

     <!-- 启动包扫描功能，以便注册带有@Controller、@Service、@repository、@Component等注解的类成为spring的bean -->

     <context:component-scan base-package="com.mvc.rest" />

     <!-- 对模型视图名称的解析，在请求时模型视图名称添加前后缀 -->

     <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" p:prefix="/WEB-INF/view/" p:suffix=".jsp" />

 

</beans>

 

Demo例子

1、创建web项目：SpingmvcDemo

2、根据spring-servlet.xml配置的包路径（com.mvc.rest）新建RestConstroller

package com.mvc.rest;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import org.springframework.stereotype.Controller;

import org.springframework.ui.ModelMap;

import org.springframework.web.bind.annotation.PathVariable;

import org.springframework.web.bind.annotation.RequestMapping;

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

import org.springframework.web.servlet.ModelAndView;

@Controller

public class RestConstroller {

public RestConstroller() {}

@RequestMapping(value = "/login/{user}", method = RequestMethod.GET)

public ModelAndView myMethod(HttpServletRequest request,HttpServletResponse response, 

@PathVariable("user") String user, ModelMap modelMap) throws Exception {

modelMap.put("loginUser", user);

return new ModelAndView("/login/hello", modelMap);

}

@RequestMapping(value = "/welcome", method = RequestMethod.GET)

public String registPost() {

return "/welcome";

}

 

}

 

3、建jsp视图

视图路径在spring-servlet.xml配置（/WEB-INF/view/），据上述RestConstroller 类，我们在WEB-INF下建立view目录，在view下建立welcome.jsp及login/hello.jsp
welcome.jsp随意，hello.jsp代码如下：

 

<%@ 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 'hello.jsp' starting page</title>

<meta http-equiv="pragma" content="no-cache">

<meta http-equiv="cache-control" content="no-cache">

</head>

<body>

你好:<%=request.getAttribute("loginUser") %>，现在时间是<%= new Date() %>

</body>

 

</html>

 

 

4、部署访问
http://localhost:8080/SpringMvcDemo/welcome