Spring 如何解析视图？

Question

我在 Spring 2.5.5 下的 View Resolution 遇到了一些问题。基本上我只是想用传入的控制器的消息来显示我的视图。当控制器返回 ModelAndView 但 DispatcherServelt 说它找不到处理程序时，问题就出现了。

所有文件似乎都在正确的位置。我认为问题在于 Spring 无法解决该视图。从我所见，我正确使用了 InternalResourceResolver。我只是不知道为什么它失败了。

一旦我提出请求，这就是 catalina.out 日志中的内容：

Feb 8, 2010 3:27:24 PM com.madebymn.newsExample.web.IndexController handleRequest
INFO: Handling a Request: /index.jsp
Feb 8, 2010 3:27:24 PM org.springframework.web.servlet.DispatcherServlet noHandlerFound
WARNING: No mapping found for HTTP request with URI [/newsExample/WEB-INF/jsp/index.jsp] in DispatcherServlet with name 'catchAll'

这是我的 web.xml：

<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">

<display-name>A News Example</display-name>

<description>A News Example</description>

<context-param>
    <param-name>log4jConfigLocation</param-name>
    <param-value>/WEB-INF/classes/log4j.properties</param-value>
</context-param>

<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>/WEB-INF/applicationContext-jdbc.xml</param-value>
</context-param>

<listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

<servlet>
    <servlet-name>catchAll</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
    <servlet-name>catchAll</servlet-name>
    <url-pattern>*.jsp</url-pattern>
</servlet-mapping>

<welcome-file-list>
    <welcome-file>jsp/index.jsp</welcome-file>
</welcome-file-list>

这是 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" xsi:schemaLocation="http://www.springframework.org/schema/beans  http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">
<bean name="indexController" class="com.madebymn.newsExample.web.IndexController" />
<bean name="authorController" class="com.madebymn.newsExample.web.AuthorController">
    <constructor-arg>
        <ref bean="authorService" />
    </constructor-arg>
</bean>

<bean id="urlMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
    <property name="mappings">
        <props>
            <prop key="/index.jsp">indexController</prop>
            <prop key="/author/*">authorController</prop>
        </props>
    </property>
</bean>

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

</beans>

这是我的 IndexController 类：

public class IndexController implements org.springframework.web.servlet.mvc.Controller
{
    protected final Log logger = LogFactory.getLog(getClass());

    @Override
    public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
    {
        logger.info("Handling a Request: " + request.getServletPath());

        ModelAndView modelAndView = new ModelAndView("index");
        modelAndView.addObject("message", "someMessage");

        return modelAndView;
    }
}

Answer 1

问题在于，当视图也是 JSP 时，您将 DispatcherServlet 映射为 *.jsp。尝试将DispatcherServlet 映射到不同的东西，例如*.html