java - 无法强制 Spring Web MVC 3.0 框架工作

Question

我正在使用 Java 构建一个 Web 应用程序。尝试集成Spring Web MVC 3.0框架。但我什至不能强制简单地显示该页面。我正在使用 NetBeans 7.0 和 Tomcat 6.0。 这就是我所拥有的: 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"
    id="WebApp_ID" version="2.5">

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/applicationContext.xml</param-value>
    </context-param>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <servlet>
        <servlet-name>dispatcher</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <load-on-startup>2</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>dispatcher</servlet-name>
        <url-pattern>*.htm</url-pattern>
    </servlet-mapping>
    <session-config>
        <session-timeout>
            30
        </session-timeout>
    </session-config>
    <welcome-file-list>
        <welcome-file>redirect.jsp</welcome-file>
    </welcome-file-list>
</web-app>

调度程序-servlet.xml:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:p="http://www.springframework.org/schema/p"
    xmlns:context="http://www.springframework.org/schema/context"
    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="forum.web" />        

    <!--
    Most controllers will use the ControllerClassNameHandlerMapping above, but
    for the index controller we are using ParameterizableViewController, so we must
    define an explicit mapping for it.
    -->
    <bean id="urlMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
        <property name="mappings">
            <props>
                <prop key="index.htm">indexController</prop>
            </props>
        </property>   
    </bean> 
    <!--  org.springframework.web.servlet.view.InternalResourceViewResolver -->
    <bean id="viewResolver" class="org.springframework.web.servlet.view.UrlBasedViewResolver">
        <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />
        <property name="prefix" value="/WEB-INF/jsp/" />
        <property name="suffix" value=".jsp" />
    </bean>


    <!--
    The index controller.
    -->
    <bean name="indexController"
          class="org.springframework.web.servlet.mvc.ParameterizableViewController"
          p:viewName="index" />


</beans>

Controller :

package forum.web;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;


/**
 *
 * @author 
 */
@Controller
public class RegistrationController
{
    @RequestMapping("/registration.htm")
    public ModelAndView registrationWindow() 
    {       
        return new ModelAndView("registration");
    }
}

XHTML 页面:

<tr id="log_reg">
      <td>
          <a href="login.htm"> Log in </a>
          </td>
      <td></td>
      <td>
        <a href="registration.htm"> Register </a>
        </td>
   </tr>

运行此命令我看到索引页面:

http://localhost:8088/Forum/index.htm   

在页面上我单击链接，假设打开注册页面。但我看到的是 HTTP 404 错误。 链接:

http://localhost:8088/Forum/registration.htm

在 NetBeans 上发现错误:

18-Jun-2011 14:45:19 org.springframework.web.servlet.handler.AbstractUrlHandlerMapping registerHandler
INFO: Mapped URL path [/index.htm] onto handler [org.springframework.web.servlet.mvc.ParameterizableViewController@1fb0fc2]
18-Jun-2011 14:45:20 org.springframework.web.servlet.FrameworkServlet initServletBean
INFO: FrameworkServlet 'dispatcher': initialization completed in 1279 ms
18-Jun-2011 14:45:20 org.apache.catalina.core.StandardContext start
INFO: Container org.apache.catalina.core.ContainerBase.[Catalina].[localhost].[/Forum] has already been started
18-Jun-2011 14:45:35 org.springframework.web.servlet.DispatcherServlet noHandlerFound
WARNING: No mapping found for HTTP request with URI [/Forum/registration.htm] in DispatcherServlet with name 'dispatcher'
18-Jun-2011 14:51:53 org.springframework.web.servlet.DispatcherServlet noHandlerFound
WARNING: No mapping found for HTTP request with URI [/Forum/registration.htm] in DispatcherServlet with name 'dispatcher'

我无法透露这些错误的原因。在我看来，代码看起来不错。这次我尝试了很多事情。 有什么帮助吗？ 最好的问候

Answer 1

可能是因为您同时使用了注释映射和 SimpleUrlHandlerMapping。

尝试添加bean:

<bean id="handlerMapping" class="org.springframework.web.servlet.mvc.annotat ion.DefaultAnnotationHandlerMapping">
</bean>

并将其作为处理程序添加到您的 urlMapping bean:

<property name="interceptors">
   <list>
     <ref bean="handlerMapping"/>
   </list>
</property>

仅使用其中之一会更容易，尤其是基于注释的 Controller 。在这种情况下，您必须扔掉 urlMapping bean，并使用简单的类代替 indexController bean，例如:

@Controller
class PagesCtrl {
    @RequestMapping("/index.htm")
    ModelAndView index() {
        ModelAndView mav = new ModelAndView("index")
        return mav
    }
}