我正在开发一个 Spring 3.1 MVC 应用程序，并且我的浏览器中根本没有呈现一个 JSP。相反，我看到一条消息“请求的资源 () 不可用”。任何人都可以帮忙吗？这是我的错误信息。
HTTP Status 404 -
--------------------------------------------------------------------------------
type Status report
message
description The requested resource () is not available.
这是GuestBook.jsp。
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form"%>
<%@ taglib prefix="myTag" uri="commentsTag"%>
<html>
<head>
<title>Granada High School Class of 1986 Comment Page</title>
<!-- Put a confirmation message here once you
figure out how to do it with Spring -->
<style type="text/css">
p {
text-align: justify;
}
h1 {
text-align: center;
}
</style>
</head>
<body>
<h1>Granada High School Class of 1986 Guest Book</h1>
<%@ include file="menu.jsp"%><br>
<b><font color="red"><c:out value='${confirmation}' /></font></b>
<c:remove var="confirmation" scope="session" />
<p>This page is a place where you can share memories from high
school, what you're doing these days, comments about this web site
(good or bad), etc. The comments will appear at the bottom of the
page.</p>
<form:form method="post" action="GuestBook.jsp" modelAttribute="comment">
<table>
<tr>
<td><form:label path="name">Name</form:label></td>
<td><form:input path="name" /></td>
</tr>
<tr>
<td><form:label path="message">Message</form:label></td>
<td><form:textarea path="message" rows="10" cols="50" /></td>
</tr>
<tr>
<td><input type="submit" value="Submit comment" /></td>
<td> </td>
</tr>
</table>
</form:form>
<br>
<myTag:comments />
<%@ include file="footer.jsp"%>
</body>
</html>
这是 com.controller.CommentController.java。
package com.controller;
import org.springframework.stereotype.Controller;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
import com.dao.CommentDAO;
import com.model.Comment;
@Controller
@RequestMapping("/GuestBook.jsp")
public class CommentController {
Comment comment;
public Comment getComment() {
return comment;
}
public void setComment(Comment comment) {
this.comment = comment;
}
@RequestMapping(value = "/GuestBook", method = RequestMethod.POST)
public String addComment(@ModelAttribute("comment") Comment comment, BindingResult result) {
CommentDAO commentDAO = new CommentDAO();
java.util.Date today = new java.util.Date();
java.sql.Date date = new java.sql.Date(today.getTime());
comment.setDate(date);
if (commentDAO.writeComment(comment) == true) {
return "redirect:GuestBook.jsp";
}
return "redirect:Oops.jsp";
}
@RequestMapping("/GuestBook")
public ModelAndView showComments() {
return new ModelAndView("comments", "command", new Comment());
}
}
这是 web.xml。
<?xml version="1.0" encoding="UTF-8"?>
<web-app id="WebApp_ID" 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>Granada High School Class of 1986</display-name>
<servlet>
<servlet-name>ghs1986</servlet-name>
<servlet-class>
org.springframework.web.servlet.DispatcherServlet
</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>ghs1986</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
<listener>
<listener-class>com.configuration.ConfigurationListener</listener-class>
</listener>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<welcome-file-list>
<welcome-file>home.jsp</welcome-file>
</welcome-file-list>
</web-app>
这是 applicationContext.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"
xmlns:mvc="http://www.springframework.org/schema/mvc"
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
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">
<mvc:annotation-driven />
<context:component-scan base-package="com.controller" />
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="suffix">
<value>.jsp</value>
</property>
</bean>
</beans>
这是 ghs1986-servlet.xml。
<?xml version="1.0" ?>
<!DOCTYPE beans PUBLIC
"-//SPRING//DTD BEAN//EN"
"http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
<bean name="comment" class="com.model.Comment" />
<bean name="/GuestBook.jsp" class="com.controller.CommentController">
<property name="comment" ref="comment" />
</bean>
</beans>