1、新建一web项目 springmvc，并在lib目录中加入jar包commons-logging.jar、log4j-1.2.13.jar、slf4j-api-1.5.6.jar\spring.jar\spring-webmvc.jar\ spring-web.jar

2、把web项目中的web.xml改成如下：

Xml代码

  1. xmlversion="1.0"encoding="UTF-8"?>

  2. <web-appversion="2.5"xmlns="http://java.sun.com/xml/ns/javaee"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

  3. xsi:schemaLocation="http://java.sun.com/xml/ns/javaee

  4. http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">

  5. <welcome-file-list>

  6. <welcome-file>index.jspwelcome-file>

  7. welcome-file-list>

  12. <servlet>

  13. <servlet-name>dispatcherServletservlet-name>

  14. <servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>

  15. servlet>

  19. <servlet-mapping>

  20. <servlet-name>dispatcherServletservlet-name>

  21. <url-pattern>*.dourl-pattern>

  22. servlet-mapping>

  23. web-app>




3、新建一测试用的action类，HelloWorldAction.java类
Java代码

  1. package cn.ehoo.springmvc.test;

  3. import java.io.IOException;

  4. import java.util.HashMap;

  5. import java.util.Map;

  7. import javax.servlet.ServletException;

  8. import javax.servlet.http.HttpServletRequest;

  9. import javax.servlet.http.HttpServletResponse;

  11. import org.springframework.web.servlet.ModelAndView;

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

  14. publicclass HelloWorldAction implements Controller { // 控制器需要实现 Controller接口

  16. private String helloWorld; // 该属性用于获取配置文件中的helloWorld属性

  17. private String viewPage; // 用于获取配置文件中的viewPage属性

  19. public ModelAndView handleRequest(HttpServletRequest req, HttpServletResponse res)

  21. throws ServletException, IOException { // 在该方法中处理用户请求

  22. Map model = new HashMap();

  23. model.put("helloWorld", getHelloWorld()); // 将helloWorld属性存入model中

  24. returnnew ModelAndView(getViewPage(), model); // 调用getViewPage获取要返回的页面

  25. }

  27. public String getHelloWorld() {

  28. return helloWorld;

  29. }

  31. publicvoid setHelloWorld(String helloWorld) {

  32. this.helloWorld = helloWorld;

  33. }

  35. public String getViewPage() {

  36. return viewPage;

  37. }

  39. publicvoid setViewPage(String viewPage) {

  40. this.viewPage = viewPage;

  41. }

  45. }



4、在WEB-INF目录中加入一个配置文件dispatcherServlet-servlet.xml，里面的内容为

Xml代码

  1. xmlversion="1.0"encoding="UTF-8"?>

  4. org/dtd/spring-beans.dtd">

  5. <beans>

  6. <beanid="localeResolver"class="org.springframework.web.servlet.i18n.AcceptHeaderLocaleResolver">bean>

  8. <beanid="urlMapping"class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">

  9. <propertyname="mappings">

  10. <props>

  11. <propkey="helloWorld.do">helloWorldActionprop>

  12. props>

  13. property>

  14. bean>

  18. <beanid="viewResolver"class="org.springframework.web.servlet.view.InternalResourceViewResolver">

  19. <propertyname="viewClass">

  20. <value>org.springframework.web.servlet.view.InternalResourceViewvalue>

  21. property>

  22. bean>

  25. <beanid="helloWorldAction"class="cn.ehoo.springmvc.test.HelloWorldAction">

  26. <propertyname="helloWorld">

  27. <value>Hello Spring World!value>

  28. property>

  29. <propertyname="viewPage">

  30. <value>sayHello.jspvalue>

  31. property>

  32. bean>

  33. beans>




再在WebRoot目录下新建一个用于显示的jsp页面，sayHello.jsp
Html代码

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

  2. <%

  3. String path = request.getContextPath();

  4. String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";

  5. %>

  7. >

  8. <html>

  9. <head><title>第一个Spring MVC实例title>head>

  10. <%

  11. String str = (String)request.getAttribute("helloWorld");

  12. %>

  13. <body>

  14. <h1>您输入的欢迎语是<%=str%>h1>

  15. body>

  18. html>

测试地址为：

http://127.0.0.1/springmvc/helloWorld.do