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第一节：springmvc的helloworld实例

2015-08-22 22:11 495 查看
方法一：

web.xml
<?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" version="2.5">
<display-name>Spring MVC Application</display-name>
<servlet>
<servlet-name>HelloWorld</servlet-name>
<servlet-class>
org.springframework.web.servlet.DispatcherServlet
</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>HelloWorld</servlet-name>
<url-pattern>/example/*</url-pattern>
</servlet-mapping>
</web-app>


HelloWorld-servlet.xml(必需放在WEB-INF文件夹下)
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
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-3.0.xsd">

<context:component-scan base-package="zwxu" />

<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>


HelloController.java（访问地址为http://localhost:8080/项目名称/example/index）
@Controller
@RequestMapping("/index")
public class HelloController{

@RequestMapping(method = RequestMethod.GET)
public String printHello(ModelMap model) {
model.addAttribute("message", "Hello Spring MVC Framework!");

return "index";
}

}
附：WebController.java
<pre name="code" class="java">@Controller(每个方法对应一个地址)
public class WebController {

   @RequestMapping(value = "/hello", method = RequestMethod.GET)
   public String hello() {
<span style="white-space:pre">	</span>   return "hello";
   }
   
   @RequestMapping(value = "/redirect", method = RequestMethod.GET)
   public String redirect() {
     
      return "redirect:finalPage";
      //forward:finalPage
   }
   
   @RequestMapping(value = "/finalPage", method = RequestMethod.GET)
   public String finalPage() {
     
      return "final";
   }
}



</pre><pre name="code" class="html">index.html
<%@ page contentType="text/html; charset=UTF-8" %>
<html>
<head>
<title>Hello World</title>
</head>
<body>
<h2>${message}</h2>
</body>
</html>

方法2：

更改web.xml
<?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" version="2.5">
<display-name>Spring MVC Application</display-name>
<servlet>
<servlet-name>HelloWorld</servlet-name>
<servlet-class>
org.springframework.web.servlet.DispatcherServlet
</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:config/*.xml</param-value> //此时*可任意取名称，且*.xml的位置可由开发者任意指定
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>HelloWorld</servlet-name>
<url-pattern>/example/*</url-pattern>
</servlet-mapping>
</web-app>

                                            

                                        

                        
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