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java - SpringMVC获取404错误

转载 作者：行者123 更新时间：2023-11-28 23:21:37 25 4
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启动 tomcat 后，我​​的浏览器出现 404 错误:

我输入 localhost:8080/mvc/hello 或 localhost:8080/mvc/hello.jsp

enter image description here

但是如果我输入localhost:8080就正常了，可以访问:

enter image description here

在我的 springmvc-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: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.xsd 
 http://www.springframework.org/schema/context 
 http://www.springframework.org/schema/context/spring-context-4.1.xsd  
 http://www.springframework.org/schema/mvc 
 http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd"> 
    <!-- scan the package and the sub package --> 
    <context:component-scan base-package="com.ypd.springmvcdemo"/>
    <!-- don't handle the static resource -->
    <mvc:default-servlet-handler />
    <!-- if you use annotation you must configure following setting -->
    <mvc:annotation-driven />
    <!-- configure the InternalResourceViewResolver -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" id="internalResourceViewResolver">

        <property name="prefix" value="/WEB-INF/jsp/" />

        <property name="suffix" value=".jsp" />
    </bean>
</beans>

在我的 MVCController.java 中:

@Controller
@RequestMapping("/mvc")
public class MVCController {
    @RequestMapping("/hello")
    public String hello() {
        return "hello";
    }
}

在我的 web.xml 中:

<?xml version="1.0" encoding="UTF-8"?>
<web-app 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"
         version="3.1">

    <!--configure the setting of springmvcDispatcherServlet and configure the mapping-->
   <servlet>
       <servlet-name>springmvc</servlet-name>
       <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
       <init-param>
           <param-name>contextConfigLocation</param-name>
           <param-value>classpath:springmvc-servlet.xml</param-value>
       </init-param>
   </servlet>

    <servlet-mapping>
        <servlet-name>springmvc</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

</web-app>

这是我的hello.jsp页面:

enter image description here

(对不起springmvc-servlet.xml的位置，我已经把它放到了resource库下)

更新 - 1:

我很抱歉，当我发布这个快照时有一个错误，在我的问题项目中，web 文件夹上没有蓝点。看到我的答案我发现了它的问题。

更新图片:

那么，错在哪里呢？

编辑

我的hello.jsp:

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
Hello, world, jack loly!
</body>
</html>

编辑

日志看起来是正确的:

[2017-03-20 03:06:48,255] Artifact SpringMVCDemo:war exploded: Server is not connected. Deploy is not available. Connected to the target VM, address: '127.0.0.1:51764', transport: 'socket' 20-Mar-2017 15:06:50.080 info [main] org.apache.catalina.startup.VersionLoggerListener.log Server version: Apache Tomcat/9.0.0.M17 20-Mar-2017 15:06:50.085 info [main] org.apache.catalina.startup.VersionLoggerListener.log Server built: Jan 10 2017 20:59:20 UTC 20-Mar-2017 15:06:50.085 info [main] org.apache.catalina.startup.VersionLoggerListener.log Server number: 9.0.0.0 20-Mar-2017 15:06:50.085 info [main] org.apache.catalina.startup.VersionLoggerListener.log OS Name: Mac OS X 20-Mar-2017 15:06:50.088 info [main] org.apache.catalina.startup.VersionLoggerListener.log OS Version: 10.12.2 20-Mar-2017 15:06:50.089 info [main] org.apache.catalina.startup.VersionLoggerListener.log Architecture: x86_64 20-Mar-2017 15:06:50.089 info [main] org.apache.catalina.startup.VersionLoggerListener.log Java Home: /Library/Java/JavaVirtualMachines/jdk1.8.0_121.jdk/Contents/Home/jre 20-Mar-2017 15:06:50.089 info [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Version: 1.8.0_121-b13 20-Mar-2017 15:06:50.089 info [main] org.apache.catalina.startup.VersionLoggerListener.log JVM Vendor: Oracle Corporation 20-Mar-2017 15:06:50.089 info [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_BASE: /Users/jack/Library/Caches/IntelliJIdea2016.3/tomcat/Tomcat_9_0_0_M17_SpringMVCDemo 20-Mar-2017 15:06:50.090 info [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_HOME: /Users/jack/Library/Tomcat9 20-Mar-2017 15:06:50.091 info [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.config.file=/Users/jack/Library/Caches/IntelliJIdea2016.3/tomcat/Tomcat_9_0_0_M17_SpringMVCDemo/conf/logging.properties 20-Mar-2017 15:06:50.091 info [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager 20-Mar-2017 15:06:50.091 info [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -agentlib:jdwp=transport=dt_socket,address=127.0.0.1:51764,suspend=y,server=n 20-Mar-2017 15:06:50.091 info [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcom.sun.management.jmxremote= 20-Mar-2017 15:06:50.092 info [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcom.sun.management.jmxremote.port=1099 20-Mar-2017 15:06:50.093 info [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcom.sun.management.jmxremote.ssl=false 20-Mar-2017 15:06:50.093 info [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcom.sun.management.jmxremote.authenticate=false 20-Mar-2017 15:06:50.093 info [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.rmi.server.hostname=127.0.0.1 20-Mar-2017 15:06:50.093 info [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djdk.tls.ephemeralDHKeySize=2048 20-Mar-2017 15:06:50.093 info [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.protocol.handler.pkgs=org.apache.catalina.webresources 20-Mar-2017 15:06:50.093 info [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.base=/Users/jack/Library/Caches/IntelliJIdea2016.3/tomcat/Tomcat_9_0_0_M17_SpringMVCDemo 20-Mar-2017 15:06:50.094 info [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.home=/Users/jack/Library/Tomcat9 20-Mar-2017 15:06:50.094 info [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.io.tmpdir=/Users/jack/Library/Tomcat9/temp 20-Mar-2017 15:06:50.094 info [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: /Users/jack/Library/Java/Extensions:/Library/Java/Extensions:/Network/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java:. 20-Mar-2017 15:06:50.527 info [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["http-nio-8080"] 20-Mar-2017 15:06:50.560 info [main] org.apache.tomcat.util.net.NioSelectorPool.getSharedSelector Using a shared selector for servlet write/read 20-Mar-2017 15:06:50.563 info [main] org.apache.coyote.AbstractProtocol.init Initializing ProtocolHandler ["ajp-nio-8009"] 20-Mar-2017 15:06:50.565 info [main] org.apache.tomcat.util.net.NioSelectorPool.getSharedSelector Using a shared selector for servlet write/read 20-Mar-2017 15:06:50.581 info [main] org.apache.catalina.startup.Catalina.load Initialization processed in 1455 ms 20-Mar-2017 15:06:50.709 info [main] org.apache.catalina.core.StandardService.startInternal Starting service Catalina 20-Mar-2017 15:06:50.709 info [main] org.apache.catalina.core.StandardEngine.startInternal Starting Servlet Engine: Apache Tomcat/9.0.0.M17 20-Mar-2017 15:06:50.745 info [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler [http-nio-8080] 20-Mar-2017 15:06:50.766 info [main] org.apache.coyote.AbstractProtocol.start Starting ProtocolHandler [ajp-nio-8009] 20-Mar-2017 15:06:50.769 info [main] org.apache.catalina.startup.Catalina.start Server startup in 187 ms Connected to server [2017-03-20 03:06:51,046] Artifact SpringMVCDemo:war exploded: Artifact is being deployed, please wait... [2017-03-20 03:06:51,751] Artifact SpringMVCDemo:war exploded: Artifact is deployed successfully [2017-03-20 03:06:51,751] Artifact SpringMVCDemo:war exploded: Deploy took 705 milliseconds 20-Mar-2017 15:07:00.750 info [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deploying web application directory /Users/jack/Library/Tomcat9/webapps/manager 20-Mar-2017 15:07:00.802 info [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory /Users/jack/Library/Tomcat9/webapps/manager has finished in 52 ms

编辑

我的 tomcat 部署配置: enter image description here

编辑-2

enter image description here

最佳答案

我觉得你的tomcat部署配置不太好。您的应用程序上下文应该是您要加载应用程序并告诉 tomcat 在该上下文中分派(dispatch)所有请求的上下文。

例如您的应用程序上下文:可以是/helloApp。现在，当您启动 tomcat 时，您的应用程序将加载到 localhost:8080/helloApp/。这是您的应用程序根上下文。现在，如果您点击 localhost:8080/helloApp/mvc/hello，您应该会看到您的内容。

关于java - SpringMVC获取404错误，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/42895327/

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