Spring MVC - 属性方法名称解析器示例

以下示例说明如何使用Spring Web MVC框架使用Multi Action Controller的Properties Method Name Resolver方法。所述 的MultiActionController 类有助于与他们的方法的多个网址在单个控制器中分别进行映射。

package com.codingdict;

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("user");
      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;
   }
}

<bean class = "com.codingdict.UserController">
   <property name = "methodNameResolver">
      <bean class = "org.springframework.web.servlet.mvc.multiaction.PropertiesMethodNameResolver">
         <property name = "mappings">
            <props>
               <prop key = "/user/home.htm">home</prop>
               <prop key = "/user/add.htm">add</prop>
               <prop key = "/user/remove.htm">update</prop>   
            </props>
         </property>
      </bean>
   </property>
</bean>

例如，使用上面的配置，如果URI

请求/user/home.htm，DispatcherServlet会将请求转发给UserController home（） 方法。
请求/user/add.htm，DispatcherServlet会将请求转发给UserController的 add（） 方法。
请求/user/remove.htm，DispatcherServlet会将请求转发给UserController的 remove（） 方法。

首先，让我们使用一个可用的Eclipse IDE，并考虑以下步骤，使用Spring Web Framework开发基于动态表单的Web应用程序。

序号	描述
1	在Spring MVC - Hello World章节中解释，在com.codingdict包下创建一个名为TestWeb的项目。
2	在com.codingdict包下创建Java类UserController。
3	在jsp子文件夹下创建一个视图文件user.jsp。
4	最后一步是创建源文件和配置文件的内容并导出应用程序，如下所述。

UserController.java

package com.codingdict;

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("user");
      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;
   }
}

TestWeb-servlet.xml

<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.mvc.support.ControllerClassNameHandlerMapping">
      <property name = "caseSensitive" value = "true" />
   </bean>
   <bean class = "com.codingdict.UserController">
      <property name = "methodNameResolver">
         <bean class = "org.springframework.web.servlet.mvc.multiaction.PropertiesMethodNameResolver">
            <property name = "mappings">
               <props>
                  <prop key = "/user/home.htm">home</prop>
                  <prop key = "/user/add.htm">add</prop>
                  <prop key = "/user/remove.htm">update</prop>    
               </props>
            </property>
         </bean>
      </property>
   </bean>  
</beans>

user.jsp

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

完成创建源文件和配置文件后，导出应用程序。右键单击您的应用程序，使用 Export→WAR File 选项并将 TestWeb.war 文件保存在Tomcat的webapps文件夹中。

现在，启动Tomcat服务器并确保您可以使用标准浏览器从webapps文件夹访问其他网页。现在，尝试一个URL - http：// localhost：8080 / TestWeb / user / add.htm ，如果Spring Web Application的一切正常，我们将看到以下屏幕。

弹簧多动作控制器