Spring - 在DispatcherServlet中找不到映射,请求URI包含应用程序名称

问题描述:

我试图从头构建一个Spring应用程序,并且使用以下目录结构和文件制作了一个简单的应用程序。Spring - 在DispatcherServlet中找不到映射,请求URI包含应用程序名称

Eclipse folder structure


的web.xml

<?xml version="1.0" encoding="UTF-8"?> 
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1"> 

    <display-name>LearningSpring</display-name> 
    <welcome-file-list> 
    <welcome-file>index.html</welcome-file> 
    </welcome-file-list> 

    <servlet> 
    <servlet-name>dispatcher</servlet-name> 
    <servlet-class> 
     org.springframework.web.servlet.DispatcherServlet 
    </servlet-class> 
    <load-on-startup>1</load-on-startup> 
    </servlet> 
    <servlet-mapping> 
    <servlet-name>dispatcher</servlet-name> 
    <url-pattern>/*</url-pattern> 
    </servlet-mapping> 

</web-app> 


调度-servlet.xml中

<mvc:annotation-driven/> 
<context:component-scan base-package="com.learn.spring.app.web" /> 

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


CentralController.java

@Controller 
public class CentralController { 

    @RequestMapping("/profile.html") 
    public ModelAndView showProfile(HttpServletRequest request, HttpServletResponse response){ 
     return new ModelAndView("profile"); 
    } 
} 

我不明白发生了什么事错在上面的代码,但我总是得到一个404错误。将tomcat日志显示,我注意到以下

15-Mar-2017 16:16:33.127 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployWAR Deploying web application archive /Users/SomeUser/Documents/apache-tomcat-9.0.0.M17/webapps/LearningSpring.war 
15-Mar-2017 16:16:34.303 INFO [localhost-startStop-1] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time. 
15-Mar-2017 16:16:34.501 INFO [localhost-startStop-1] org.springframework.web.servlet.DispatcherServlet.initServletBean FrameworkServlet 'dispatcher': initialization started 
15-Mar-2017 16:16:34.533 INFO [localhost-startStop-1] org.springframework.web.context.support.XmlWebApplicationContext.prepareRefresh Refreshing WebApplicationContext for namespace 'dispatcher-servlet': startup date [Wed Mar 15 16:16:34 EDT 2017]; root of context hierarchy 
15-Mar-2017 16:16:34.594 INFO [localhost-startStop-1] org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions Loading XML bean definitions from ServletContext resource [/WEB-INF/dispatcher-servlet.xml] 
15-Mar-2017 16:16:35.238 INFO [localhost-startStop-1] org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping.registerHandlerMethod Mapped "{[/profile.html],methods=[],params=[],headers=[],consumes=[],produces=[],custom=[]}" onto public org.springframework.web.servlet.ModelAndView com.learn.spring.app.web.CentralController.showProfile(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse) 
15-Mar-2017 16:16:35.341 INFO [localhost-startStop-1] org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.initControllerAdviceCache Looking for @ControllerAdvice: WebApplicationContext for namespace 'dispatcher-servlet': startup date [Wed Mar 15 16:16:34 EDT 2017]; root of context hierarchy 
15-Mar-2017 16:16:35.413 INFO [localhost-startStop-1] org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.initControllerAdviceCache Looking for @ControllerAdvice: WebApplicationContext for namespace 'dispatcher-servlet': startup date [Wed Mar 15 16:16:34 EDT 2017]; root of context hierarchy 
15-Mar-2017 16:16:35.517 INFO [localhost-startStop-1] org.springframework.web.servlet.DispatcherServlet.initServletBean FrameworkServlet 'dispatcher': initialization completed in 1016 ms 
15-Mar-2017 16:16:35.527 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployWAR Deployment of web application archive /Users/SomeUser/Documents/apache-tomcat-9.0.0.M17/webapps/LearningSpring.war has finished in 2,399 ms 
15-Mar-2017 16:16:35.530 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler [http-nio-8080] 
15-Mar-2017 16:16:35.536 INFO [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler [ajp-nio-8009] 
15-Mar-2017 16:16:35.536 INFO [main] org.apache.catalina.startup.Catalina.start Server startup in 2492 ms 
^[15-Mar-2017 16:19:22.994 WARNING [http-nio-8080-exec-5] org.springframework.web.servlet.PageNotFound.noHandlerFound No mapping found for HTTP request with URI [/LearningSpring] in DispatcherServlet with name 'dispatcher' 
15-Mar-2017 16:19:27.755 WARNING [http-nio-8080-exec-6] org.springframework.web.servlet.PageNotFound.noHandlerFound No mapping found for HTTP request with URI [/LearningSpring/] in DispatcherServlet with name 'dispatcher' 
15-Mar-2017 16:19:40.881 WARNING [http-nio-8080-exec-7] org.springframework.web.servlet.PageNotFound.noHandlerFound No mapping found for HTTP request with URI [/LearningSpring/WEB-INF/jsp/profile.jsp] in DispatcherServlet with name 'dispatcher' 

一件事是,所有的请求的URI有/LearningSpring/(应用程序名称)作为前缀(我想应该不会有)。

我无法通过网址localhost:8080/LearningSpring/profile.html访问profile.jsp页面,也没有显示index.html作为欢迎页面。它只是抛出404当我访问localhost:8080/LearningSpring/

我已经通读了很多答案和谷歌搜索几个小时,但没有运气。请帮助指出什么是错的。

谢谢

+0

解决方法1:添加到您的web.xml *。html的 url-pattern的>,并在您的本地主机yourl:8080/APPNAME/profile文件.html解决方案2:为您的方法@RequestMapping(“/ profile”)更新requestMapping并在yourl localhost:8080/appName/profile中最好地reagrards –

+0

@hichamabdedaime试过了。没有帮助 –

+0

删除工作区中的文件夹metada并重新启动eclise并再试一次 –

夫妇的事情... ...调度的servlet为 “/” 的

  1. 更改URL模式;

<url-pattern>/</url-pattern>

  1. 即成所有静态资源通过调度器的servlet;
  2. <mvc:resources location="/**" mapping="/"></mvc:resources>

    检查该样品的例子 - https://github.com/code-4-fun/spring-mvc-demo/blob/master/src/main/webapp/WEB-INF/dispatcher-servlet.xml

开始=>
+0

更改url映射为'/ url-pattern>'帮助我解决了访问'profile.jsp'页面的问题,但是第二件事什么都没做,我仍然不能访问我的索引。html'页面(作为欢迎页面) –

+0

@AdityaVikasDevarapalli您确定_index.html_文件位于** webapp **文件夹下,而不是** WEB-INF **文件夹? –