java - Spring MVC - jsp 不渲染

Question

我刚开始使用 Spring MVC 尝试创建一个新项目，遇到了一个似乎没有任何手册或教程可以帮助解决的问题...

我建立了一个没有逻辑的简单应用程序，只是试图正确配置 Spring。 Controller 只返回要显示的 View 的名称，但 View 解析器未呈现 jsp，并返回 404 错误....

非常感谢任何帮助。

我的 web.xml 是:

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

  <servlet-mapping>
    <servlet-name>openstats</servlet-name>
    <url-pattern>*.do</url-pattern>
  </servlet-mapping>

  <display-name>OpenStats API Server</display-name>
</web-app>

我的 openstats-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">

    <context:component-scan base-package="org.openstats.api.controller"/>

    <!-- Enable to request mappings PER METHOD -->
    <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"/>

    <!-- Enable annotated POJO @Controller -->
    <bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping"/>

    <!-- Define the view resolver to use jsp files within the jsp folder -->
    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass"><value>org.springframework.web.servlet.view.JstlView</value></property>
        <property name="prefix"><value>/jsp/</value></property>
        <property name="suffix"><value>.jsp</value></property>
    </bean>
</beans>

Controller 本身没有任何逻辑，它只是:

@Controller
public class ProductController {

    @RequestMapping(value = "/products.do", method = RequestMethod.GET)
    public ModelAndView listProducts(HttpServletRequest request) {

        ModelAndView model = new ModelAndView("index");
        return model;
    }
}

到达 Controller ，问题是在尝试渲染时...

我在调试中设置了 log4j，这是我得到的一部分:

02:08:19,702 DEBUG DispatcherServlet:1094 - Testing handler adapter [org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter@397b6074] 02:08:19,803 DEBUG HandlerMethodInvoker:134 - Invoking request handler method: public org.springframework.web.servlet.ModelAndView org.openstats.api.controller.ProductController.listProducts(javax.servlet.http.HttpServletRequest) 02:08:19,833 DEBUG DefaultListableBeanFactory:1367 - Invoking afterPropertiesSet() on bean with name 'index' 02:08:19,876 DEBUG InternalResourceViewResolver:81 - Cached view [index] 02:08:19,877 DEBUG DispatcherServlet:1181 - Rendering view [org.springframework.web.servlet.view.JstlView: name 'index'; URL [/jsp/index.jsp]] in DispatcherServlet with name 'openstats' 02:08:19,877 DEBUG JstlView:240 - Rendering view with name 'index' with model {} and static attributes {} 02:08:19,923 DEBUG JstlView:234 - Forwarding to resource [/jsp/index.jsp] in InternalResourceView 'index' 02:08:19,926 DEBUG DispatcherServlet:955 - DispatcherServlet with name 'openstats' determining Last-Modified value for [/api-server/jsp/index.jsp] 02:08:19,927 DEBUG DispatcherServlet:1054 - Testing handler map [org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping@440c4cee] in DispatcherServlet with name 'openstats' 02:08:19,928 DEBUG DefaultAnnotationHandlerMapping:179 - No handler mapping found for [/jsp/index.jsp] 02:08:19,929 DEBUG DispatcherServlet:962 - No handler found in getLastModified 02:08:19,937 DEBUG DispatcherServlet:781 - DispatcherServlet with name 'openstats' processing request for [/api-server/jsp/index.jsp] 02:08:19,938 DEBUG DispatcherServlet:843 - Bound request context to thread: GET /api-server/products.do HTTP/1.1

我的 jsp 文件夹就在“webapp”中，并且存在 index.jsp 文件。

提前致谢。

Answer 1

我在使用 Spring 3.x 时也遇到了同样的问题。 目前有什么进展吗？

编辑: 我自己弄明白了 :-) 我使用了以下 servletmapping:

  <servlet-mapping>
    <servlet-name>spring-frontcontroller</servlet-name>
    <url-pattern>/*</url-pattern>
  </servlet-mapping>

将 url-pattern 编辑为例如*.do 修复了不呈现 JSP 的问题。 但这留下了一个问题，即如何使用您的 url 模式实现这一点。