Spring Web MVC項目404錯誤

我剛剛在eclipse中創建了一個新項目。這是代碼。Spring Web MVC項目404錯誤

的web.xml

<?xml version="1.0" encoding="UTF-8"?> 
<web-app version="3.1" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"> 
    <context-param> 
     <param-name>contextConfigLocation</param-name> 
     <param-value>/WEB-INF/dispatcher-servlet.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>/</url-pattern> 
    </servlet-mapping> 
    <session-config> 
     <session-timeout> 
      30 
     </session-timeout> 
    </session-config> 
    <welcome-file-list> 
     <welcome-file>index.jsp</welcome-file> 
    </welcome-file-list> 
</web-app>

調度-servlet.xml中

<?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:aop="http://www.springframework.org/schema/aop" 
     xmlns:tx="http://www.springframework.org/schema/tx" 
     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-3.1.xsd 
     http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd 
     http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd 
     http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd 
     http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd "> 

    <bean class="org.springframework.web.servlet.mvc.support.ControllerClassNameHandlerMapping"/> 

    <!-- 
    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> 

    <bean id="viewResolver" 
      class="org.springframework.web.servlet.view.InternalResourceViewResolver" 
      p:prefix="/WEB-INF/jsp/" 
      p:suffix=".jsp" /> 

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

</beans>

的index.jsp

<?xml version="1.0" encoding="ISO-8859-1" ?> 
<jsp:root xmlns:jsp="http://java.sun.com/JSP/Page" version="2.0"> 
    <jsp:directive.page contentType="text/html; charset=ISO-8859-1" 
     pageEncoding="ISO-8859-1" session="false"/> 
    <jsp:output doctype-root-element="html" 
     doctype-public="-//W3C//DTD XHTML 1.0 Transitional//EN" 
     doctype-system="http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" 
     omit-xml-declaration="true" /> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
<head> 
<title>Insert title here</title> 
</head> 
<body> 
Insert title here 
</body> 
</html> 
</jsp:root>

MainController.java

package SpringDemo; 

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

@Controller 
public class MainController { 

    @RequestMapping("/index") 
    public ModelAndView loginWorld(ModelMap model) { 

     return new ModelAndView("Main", "welcomeMessage","Hello Guest! welcome to out site"); 
    } 
}

Main.java

<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%> 
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 
<html> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> 
<title>Insert title here</title> 
</head> 
<body> 
Insert title here 
</body> 
</html>

項目

在上面的代碼，我總是得到HTTP Status 404 - /SpringDemo/index錯誤，當我嘗試通過http://localhost:8080/SpringDemo/index

運行它有什麼不對的碼？

編輯

圖書館使用

aopalliance-1.0 
commons-logging-1.1.2 
commons-logging-1.2 
hibernate-validator-4.1.0.Final 
jsch-0.1.49 
jstl-api 
jstl-impl 
log4j-1.2.16 
ojdbc6 
slf4j-api-1.5.6 
slf4j-log4j12-1.5.6 
spring-aop-4.1.1.RELEASE-javadoc 
spring-aop-4.1.1.RELEASE-sources 
spring-aop-4.1.1.RELEASE 
spring-aspects-3.2.1.RELEASE 
spring-aspects-4.1.1.RELEASE-javadoc 
spring-aspects-4.1.1.RELEASE-sources 
spring-aspects-4.1.1.RELEASE 
spring-beans-3.2.1.RELEASE 
spring-beans-4.1.1.RELEASE-javadoc 
spring-beans-4.1.1.RELEASE-sources 
spring-beans-4.1.1.RELEASE 
spring-context-3.2.1.RELEASE 
spring-context-4.1.1.RELEASE-javadoc 
spring-context-4.1.1.RELEASE-sources 
spring-context-4.1.1.RELEASE 
spring-context-support-4.1.1.RELEASE-javadoc 
spring-context-support-4.1.1.RELEASE-sources 
spring-context-support-4.1.1.RELEASE 
spring-core-3.2.1.RELEASE 
spring-core-4.1.1.RELEASE-javadoc 
spring-core-4.1.1.RELEASE-sources 
spring-core-4.1.1.RELEASE 
spring-expression-3.2.1.RELEASE 
spring-expression-4.1.1.RELEASE-javadoc 
spring-expression-4.1.1.RELEASE-sources 
spring-expression-4.1.1.RELEASE 
spring-instrument-4.1.1.RELEASE-javadoc 
spring-instrument-4.1.1.RELEASE-sources 
spring-instrument-4.1.1.RELEASE 
spring-instrument-tomcat-4.1.1.RELEASE-javadoc 
spring-instrument-tomcat-4.1.1.RELEASE-sources 
spring-instrument-tomcat-4.1.1.RELEASE 
spring-jdbc-4.1.1.RELEASE-javadoc 
spring-jdbc-4.1.1.RELEASE-sources 
spring-jdbc-4.1.1.RELEASE 
spring-jms-4.1.1.RELEASE-javadoc 
spring-jms-4.1.1.RELEASE-sources 
spring-jms-4.1.1.RELEASE 
spring-messaging-4.1.1.RELEASE-javadoc 
spring-messaging-4.1.1.RELEASE-sources 
spring-messaging-4.1.1.RELEASE 
spring-orm-4.1.1.RELEASE-javadoc 
spring-orm-4.1.1.RELEASE-sources 
spring-orm-4.1.1.RELEASE 
spring-oxm-4.1.1.RELEASE-javadoc 
spring-oxm-4.1.1.RELEASE-sources 
spring-oxm-4.1.1.RELEASE 
spring-test-4.1.1.RELEASE-javadoc 
spring-test-4.1.1.RELEASE-sources 
spring-test-4.1.1.RELEASE 
spring-tx-4.1.1.RELEASE-javadoc 
spring-tx-4.1.1.RELEASE-sources 
spring-tx-4.1.1.RELEASE 
spring-web-3.2.1.RELEASE 
spring-web-4.1.1.RELEASE-javadoc 
spring-web-4.1.1.RELEASE-sources 
spring-web-4.1.1.RELEASE 
spring-webmvc-3.2.1.RELEASE 
spring-webmvc-4.1.1.RELEASE-javadoc 
spring-webmvc-4.1.1.RELEASE-sources 
spring-webmvc-4.1.1.RELEASE 
spring-webmvc-portlet-4.1.1.RELEASE-javadoc 
spring-webmvc-portlet-4.1.1.RELEASE-sources 
spring-webmvc-portlet-4.1.1.RELEASE 
spring-websocket-4.1.1.RELEASE-javadoc 
spring-websocket-4.1.1.RELEASE-sources 
spring-websocket-4.1.1.RELEASE 
validation-api-1.1.0.Final

來源

2016-02-04 Harshit Shrivastava

@Abdelhak不，它應該是通過'http：//本地主機：8080/index' – user2004685

你在日誌中得到什麼錯誤，當你啓動應用程序？ –

@HarshitShrivastava你可以啓用日誌，然後看看你的上下文是否被加載。請求映射是否被註冊？ XML文件是否被加載？在ContextLoader類中放入一個調試點，然後檢查在那裏的「initWebApplicationContext」方法中加載哪個位置，然後以調試模式啓動。瞭解應用程序是否正在加載非常重要。 – Gyan

嘗試添加到您的文件dispatcher-servlet.xml這樣的：

<mvc:annotation-driven />

此：

<context:annotation-config/>

這：

<context:component-scan base-package="SpringDemo" />

，並更改方法國稅發像這樣的字符串返回：

@RequestMapping("/index") 
public String loginWorld(ModelMap model) { 

    return "Main"; 
}

來源

2016-02-04 07:38:35 Abdelhak

這顯然是失蹤，但仍然是同樣的問題？發現難以理解的問題！ –

我試過'http：// localhost：8080/SpringDemo/index'＆'http：// localhost：8080/SpringDemo/index.jsp'，它不工作。它似乎甚至不能進入控制器類。有沒有更好的調試選項，以便我可以找出問題所在？ –

@HarshitShrivastava嘗試添加：到dispatcher-servlet.xml – Abdelhak

變化<load-on-startup>元件參數，並嘗試again.Also添加<context:component-scan>用於加載bean.I希望這會爲你工作。

像：

<load-on-startup>1</load-on-startup>

來源

2016-02-04 07:42:44 Niks

再次它不工作。 –

Spring Web MVC項目404錯誤

回答

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