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我正在通過this Spring web MVC tutorial，但我堅持在第1.12節我應該看到由我的控制器處理的「Hello」頁面，而是得到「HTTP狀態404 - Servlet不可用」。我看過其他有相同錯誤的stackoverflow問題，但沒有一個有幫助。爲什麼我會收到「HTTP狀態404 - Servlet <servlet名稱>不可用」
以下是相關文件：
/網絡/ WEB-INF/web.xml中：
<?xml version="1.0" encoding="UTF-8"?>
<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" >
<!--
The "Front Controller" (http://en.wikipedia.org/wiki/Front_Controller_pattern).
that dispatches requests to registered handlers (Controller implementations).
-->
<servlet>
<servlet-name>filth</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>filth</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
/網絡/ WEB-INF/藏污納垢-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"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<!-- the application context definition for the filth DispatcherServlet -->
<context:component-scan base-package="com.filth.controller"/>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/web/view/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
/網絡/視圖/ 的hello.jsp：
<html>
<head><title>Hello :: Spring Application</title></head>
<body>
<h1>Hello - Spring Application</h1>
<p>Greetings.</p>
</body>
</html>
/SRC /主/ JAVA/COM /污物/控制器/ HelloController.java：
package com.filth.controller;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
/**
* Controller for the "Hello" page
*/
@Controller
public class HelloController {
private static final Log LOGGER = LogFactory.getLog(HelloController.class);
@RequestMapping(value="/hello.html", method = RequestMethod.GET)
public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
LOGGER.info("Returning hello view");
return new ModelAndView("hello");
}
}
/build.properties中：
# Ant properties for building FiLTH
appserver.home=${env.WORKSPACE}/tomcat6
appserver.lib=${appserver.home}/lib
deploy.path=${appserver.home}/webapps
tomcat.manager.url=http://localhost:8080/manager
tomcat.manager.username=tomcat
tomcat.manager.password=s3cret
/構建。 xml：
<?xml version="1.0"?>
<project name="filth" xmlns:ivy="antlib:org.apache.ivy.ant" basedir="." default="usage">
<taskdef resource="net/sf/antcontrib/antlib.xml">
<classpath>
<pathelement path="${build.lib.dir}/ant-contrib.jar"/>
</classpath>
</taskdef>
<taskdef name="ivy-configure" classname="org.apache.ivy.ant.IvyConfigure"/>
<taskdef name="ivy-resolve" classname="org.apache.ivy.ant.IvyResolve"/>
<taskdef name="ivy-retrieve" classname="org.apache.ivy.ant.IvyRetrieve"/>
<taskdef name="ivy-deliver" classname="org.apache.ivy.ant.IvyDeliver"/>
<taskdef name="ivy-publish" classname="org.apache.ivy.ant.IvyPublish"/>
<target name="ivy-resolve">
<ivy:configure />
<ivy:resolve file="${ivy.dep.file}" conf="${ivy.configurations}" />
<ivy:retrieve pattern="${ivy.retrieve.pattern}" conf="${ivy.configurations}" />
<echo message="ivy.dep.file: ${ivy.dep.file}"/>
<echo message="ivy.configurations: ${ivy.configurations}"/>
<echo message="ivy.retrieve.pattern: ${ivy.retrieve.pattern}"/>
</target>
<property environment="env"/>
<property file="build.properties"/>
<property file="build.passwords.properties" />
<property name="src.dir" value="src/main/java"/>
<property name="test.dir" value="src/test"/>
<property name="web.dir" value="web/"/>
<property name="build.dir" value="target"/>
<property name="name" value="filth"/>
<property name="resources.dir" value="src/main/resources"/>
<path id="master-classpath">
<fileset dir="lib">
<include name="**/*.jar"/>
</fileset>
<!-- We need the servlet API classes: -->
<!-- * for Tomcat 5/6 use servlet-api.jar -->
<!-- * for other app servers - check the docs -->
<fileset dir="${appserver.lib}">
<include name="servlet*.jar"/>
</fileset>
<pathelement path="${resources.dir}"/>
<pathelement path="${build.dir}"/>
</path>
<target name="usage">
<echo message=""/>
<echo message="${name} build file"/>
<echo message="-----------------------------------"/>
<echo message=""/>
<echo message="Available targets are:"/>
<echo message=""/>
<echo message="build --> Build the application"/>
<echo message="deploy --> Deploy application as directory"/>
<echo message="deploywar --> Deploy application as a WAR file"/>
<echo message="install --> Install application in Tomcat"/>
<echo message="reload --> Reload application in Tomcat"/>
<echo message="start --> Start Tomcat application"/>
<echo message="stop --> Stop Tomcat application"/>
<echo message="list --> List Tomcat applications"/>
<echo message=""/>
</target>
<target name="build" description="Compile main source tree java files">
<mkdir dir="${build.dir}"/>
<javac destdir="${build.dir}" source="1.6" target="1.6" debug="true"
deprecation="false" optimize="false" failonerror="true">
<src path="${src.dir}"/>
<classpath refid="master-classpath"/>
</javac>
</target>
<target name="deploy" depends="build" description="Deploy application">
<copy todir="${deploy.path}/${name}" preservelastmodified="true">
<fileset dir="${web.dir}">
<include name="**/*.*"/>
</fileset>
</copy>
</target>
<target name="deploywar" depends="build" description="Deploy application as a WAR file">
<war destfile="${name}.war" webxml="${web.dir}/WEB-INF/web.xml">
<fileset dir="${web.dir}">
<include name="**/*.*"/>
</fileset>
</war>
<copy todir="${deploy.path}" preservelastmodified="true">
<fileset dir=".">
<include name="*.war"/>
</fileset>
</copy>
</target>
<target name="buildtests" description="Compile test tree java files">
<mkdir dir="${build.dir}"/>
<javac destdir="${build.dir}" source="1.6" target="1.6" debug="true"
deprecation="false" optimize="false" failonerror="true">
<src path="${test.dir}"/>
<classpath refid="master-classpath"/>
</javac>
</target>
<target name="tests" depends="build, buildtests" description="Run tests">
<junit printsummary="on"
fork="false"
haltonfailure="false"
failureproperty="tests.failed"
showoutput="true">
<classpath refid="master-classpath"/>
<formatter type="brief" usefile="false"/>
<batchtest>
<fileset dir="${build.dir}">
<include name="**/*Test.*"/>
</fileset>
</batchtest>
</junit>
<fail if="tests.failed">
tests.failed=${tests.failed}
***********************************************************
***********************************************************
**** One or more tests failed! Check the output ... ****
***********************************************************
***********************************************************
</fail>
</target>
<!-- ============================================================== -->
<!-- Tomcat tasks - remove these if you don't have Tomcat installed -->
<!-- ============================================================== -->
<path id="catalina-ant-classpath">
<!-- We need the Catalina jars for Tomcat -->
<!-- * for other app servers - check the docs -->
<fileset dir="${appserver.lib}">
<include name="catalina-ant.jar"/>
<include name="tomcat-coyote.jar"/>
<include name="tomcat-util.jar"/>
</fileset>
<fileset dir="${appserver.home}/bin">
<include name="tomcat-juli.jar"/>
</fileset>
</path>
<taskdef name="install" classname="org.apache.catalina.ant.DeployTask">
<classpath refid="catalina-ant-classpath"/>
</taskdef>
<taskdef name="reload" classname="org.apache.catalina.ant.ReloadTask">
<classpath refid="catalina-ant-classpath"/>
</taskdef>
<taskdef name="list" classname="org.apache.catalina.ant.ListTask">
<classpath refid="catalina-ant-classpath"/>
</taskdef>
<taskdef name="start" classname="org.apache.catalina.ant.StartTask">
<classpath refid="catalina-ant-classpath"/>
</taskdef>
<taskdef name="stop" classname="org.apache.catalina.ant.StopTask">
<classpath refid="catalina-ant-classpath"/>
</taskdef>
<target name="install" description="Install application in Tomcat">
<install url="${tomcat.manager.url}"
username="${tomcat.manager.username}"
password="${tomcat.manager.password}"
path="/${name}"
war="${name}"/>
</target>
<target name="reload" description="Reload application in Tomcat">
<reload url="${tomcat.manager.url}"
username="${tomcat.manager.username}"
password="${tomcat.manager.password}"
path="/${name}"/>
</target>
<target name="start" description="Start Tomcat application">
<start url="${tomcat.manager.url}"
username="${tomcat.manager.username}"
password="${tomcat.manager.password}"
path="/${name}"/>
</target>
<target name="stop" description="Stop Tomcat application">
<stop url="${tomcat.manager.url}"
username="${tomcat.manager.username}"
password="${tomcat.manager.password}"
path="/${name}"/>
</target>
<target name="list" description="List Tomcat applications">
<list url="${tomcat.manager.url}"
username="${tomcat.manager.username}"
password="${tomcat.manager.password}"/>
</target>
<!-- End Tomcat tasks -->
</project>
/ivy.xml：
<ivy-module version="2.0">
<info organisation="org.apache" module="hello-ivy"/>
<dependencies>
<dependency org="org.springframework" name="spring-context" rev="4.1.6.RELEASE"/>
<dependency org="org.springframework" name="spring-webmvc" rev="4.1.6.RELEASE"/>
<dependency org="commons-logging" name="commons-logging" rev="1.2"/>
<dependency org="javax.servlet" name="servlet-api" rev="2.5"/>
<dependency org="junit" name="junit" rev="4.12"/>
</dependencies>
</ivy-module>
導航到http://localhost:8080/filth/hello.html當我得到的錯誤。 catalina.out不會給出任何錯誤，而且我確實看到了HelloController.java中的日誌條目，但非常不一致 - 不知道爲什麼這麼做。
請注意http://localhost:8080/filth/index.jsp和http://localhost:8080/filth/view/hello.jsp的工作 - 只是通過控制器不按預期工作。
任何人有任何想法？ 讓我知道你是否需要更多的上下文/信息。 謝謝！
嘗試'http：// localhost：8080/hello.html'你的DispatcherServlet被映射到'/'，而不是'/ filth' –
什麼是你的項目/ jar文件的名稱，是不是？如果是這樣的調用URL看起來是正確的如果你正在使用maven plz share pom。你還檢查了jar的部署位置是否配置了所有必需的資源？我對部署有疑問，因爲所有其他人都看起來很完美。 – Bhupi
@Evgeni：我也爲http：// localhost：8080/hello.html獲得了一個404：「請求的資源（/hello.html）不可用。」我應該注意到http：// localhost：8080/filth/index.jsp和http：// localhost：8080/filth/view/hello。jsp的工作 - 它只是通過控制器不工作。 – Tyler