Spring MVC多动作控制器

package com.h3.springmvc;

import javax.servlet.http.httpservletrequest;
import javax.servlet.http.httpservletresponse;

import org.springframework.web.servlet.modelandview;
import org.springframework.web.servlet.mvc.multiaction.multiactioncontroller;

public class usercontroller extends multiactioncontroller{

   public modelandview home(httpservletrequest request,
      httpservletresponse response) throws exception {
      modelandview model = new modelandview("home");
      model.addobject("message", "home");
      return model;
   }

   public modelandview add(httpservletrequest request,
      httpservletresponse response) throws exception {
      modelandview model = new modelandview("user");
      model.addobject("message", "add");
      return model;
   }

   public modelandview remove(httpservletrequest request,
      httpservletresponse response) throws exception {
      modelandview model = new modelandview("user");
      model.addobject("message", "remove");
      return model;
   }
}

url映射配置文件如下 -

<bean class="org.springframework.web.servlet.handler.beannameurlhandlermapping"/>
   <bean name="/home.html" class="com.h3.springmvc.usercontroller" /> 
   <bean name="/user/*.html" class="com.h3.springmvc.usercontroller" />

例如，使用上面的配置，如果uri：

对于/home.html请求，dispatcherservlet将请求转发到usercontroller类的 home()方法。
对于user/add.html，dispatcherservlet将请求转发到usercontroller类的 add()方法。
对于user/remove.html，dispatcherservlet将请求转发到usercontroller类的 remove()方法。

首先，让我们使用eclipse ide，并按照以下步骤使用spring web framework开发基于动态表单的web应用程序：

创建一个名称为 multiactioncontroller 的动态web项目。
在 com.h3.springmvc 包下创建一个java类usercontroller。
在jsp子文件夹下创建两个视图文件：home.jsp 和 user.jsp。
最后一步是创建所有源和配置文件的内容并运行应用程序，详细如下所述。

完整的项目文件目录结构如下所示 -

usercontroller.java 的代码如下所示 -

package com.h3.springmvc;
import javax.servlet.http.httpservletrequest;
import javax.servlet.http.httpservletresponse;

import org.springframework.web.servlet.modelandview;
import org.springframework.web.servlet.mvc.multiaction.multiactioncontroller;

public class usercontroller extends multiactioncontroller{

   public modelandview home(httpservletrequest request,
      httpservletresponse response) throws exception {
      modelandview model = new modelandview("home");
      model.addobject("message", "home");
      return model;
   }

   public modelandview add(httpservletrequest request,
      httpservletresponse response) throws exception {
      modelandview model = new modelandview("user");
      model.addobject("message", "add");
      return model;
   }

   public modelandview remove(httpservletrequest request,
      httpservletresponse response) throws exception {
      modelandview model = new modelandview("user");
      model.addobject("message", "remove");
      return model;
   }
}

multiactioncontroller-servlet.xml 的代码如下所示 -

<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">

   <bean class="org.springframework.web.servlet.view.internalresourceviewresolver">
      <property name="prefix" value="/web-inf/jsp/"/>
      <property name="suffix" value=".jsp"/>
   </bean>

   <bean class="org.springframework.web.servlet.handler.beannameurlhandlermapping"/>
   <bean name="/home.html" 
      class="com.h3.springmvc.usercontroller" /> 
   <bean name="/user/*.html" 
      class="com.h3.springmvc.usercontroller" />    
</beans>

home.jsp 的代码如下所示 -

<%@ page contenttype="text/html; charset=utf-8" %>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<title>home</title>
</head>
<body>
<body>
<a href="user/add.html" >add()方法</a> <br>
<a href="user/remove.html" >remove()方法</a>
</body>
</html>

user.jsp 的代码如下所示 -

<%@ page contenttype="text/html; charset=utf-8" %>
<html>
<head>
<title>user.jsp page</title>
</head>
<body>
   <h2>${message}</h2>  
</body>
</html>

完成创建源和配置文件后，发布应用程序到tomcat服务器。

现在启动tomcat服务器，现在尝试访问url => http://localhost:8080/multiactioncontroller/home.html ，如果spring web应用程序没有问题，应该看到以下结果：

当访问url => http://localhost:8080/multiactioncontroller/add.html ，如果spring web应用程序没有问题，应该看到以下结果：