error404使用Jersey框架和Tomcat服務器訪問RESTful Web服務

現在面臨通過這個網址訪問RESTful Web服務的一個問題： localhost:8080/PrimNumbers/Generator/strategyerror404使用Jersey框架和Tomcat服務器訪問RESTful Web服務

我得到這個錯誤：

HTTP Status 404 - /PrimNumbers/Generator/strategy

type Status report

message /PrimNumbers/Generator/strategy

description The requested resource is not available.

正在使用tomcat7.0.81服務器和jersey1.17框架（我在我的項目中包含了WEB-INF/lib下的jersey jar文件）。這裏是我的web.xml文件：

<?xml version="1.0" encoding="UTF-8"?> 
<element> 
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xmlns="http://java.sun.com/xml/ns/javaee" 
xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" 
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" 
version="3.0"> 
    <display-name>PrimNumbers</display-name> 
    <servlet> 
     <servlet-name>Jersey RESTful Application</servlet-name> 
     <servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class> 
     <init-param> 
     <param-name> jersey.config.server.provider.packages</param-name> 
     <param-value>PrimeNbs</param-value> 
     </init-param> 
    </servlet> 
    <servlet-mapping> 
     <servlet-name>Jersey RESTful Application</servlet-name> 
     <url-pattern>/*</url-pattern> 
    </servlet-mapping> 
</web-app> 
</element

，這是我service.java（我只是測試服務）：

package PrimeNbs; 

import javax.ws.rs.Path; 
import javax.ws.rs.GET; 
import javax.ws.rs.Produces; 
import javax.ws.rs.core.MediaType; 


//annotations 
@Path("/Generator") 

public class PrimeNbsGeneratorService { 

    @GET 
    @Path("/strategy") 
    @Produces(MediaType.TEXT_HTML) 
    public String Strategy1(){ 
     boolean prime=true; 
     String rslt="<HTML><h1> Prime numbers: "; 
     return(rslt+" test...</h1></HTML>"); 
    } 
}

運行我的服務器，而我得到了這些日誌消息：

> ug 22, 2017 11:22:44 AM org.apache.tomcat.util.digester.SetPropertiesRule begin 
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:PrimNumbers' did not find a matching property. 
Aug 22, 2017 11:22:44 AM org.apache.catalina.startup.VersionLoggerListener log 
INFO: Server version:  Apache Tomcat/7.0.81 
Aug 22, 2017 11:22:44 AM org.apache.catalina.startup.VersionLoggerListener log 
INFO: Server built:   Aug 11 2017 10:21:27 UTC 
Aug 22, 2017 11:22:44 AM org.apache.catalina.startup.VersionLoggerListener log 
INFO: Server number:   7.0.81.0 
Aug 22, 2017 11:22:44 AM org.apache.catalina.startup.VersionLoggerListener log 
INFO: OS Name:    Linux 
Aug 22, 2017 11:22:44 AM org.apache.catalina.startup.VersionLoggerListener log 
INFO: OS Version:   4.4.0-21-generic 
Aug 22, 2017 11:22:44 AM org.apache.catalina.startup.VersionLoggerListener log 
INFO: Architecture:   amd64 
Aug 22, 2017 11:22:44 AM org.apache.catalina.startup.VersionLoggerListener log 
INFO: Java Home:    /home/elhem/java/jre1.8.0_121 
Aug 22, 2017 11:22:44 AM org.apache.catalina.startup.VersionLoggerListener log 
INFO: JVM Version:   1.8.0_121-b13 
Aug 22, 2017 11:22:44 AM org.apache.catalina.startup.VersionLoggerListener log 
INFO: JVM Vendor:   Oracle Corporation 
Aug 22, 2017 11:22:44 AM org.apache.catalina.startup.VersionLoggerListener log 
INFO: CATALINA_BASE:   /home/elhem/workspace/tomcat 
Aug 22, 2017 11:22:44 AM org.apache.catalina.startup.VersionLoggerListener log 
INFO: CATALINA_HOME:   /home/elhem/workspace/tomcat 
Aug 22, 2017 11:22:44 AM org.apache.catalina.startup.VersionLoggerListener log 
INFO: Command line argument: -Dcatalina.base=/home/elhem/workspace/tomcat 
Aug 22, 2017 11:22:44 AM org.apache.catalina.startup.VersionLoggerListener log 
INFO: Command line argument: -Dcatalina.home=/home/elhem/workspace/tomcat 
Aug 22, 2017 11:22:44 AM org.apache.catalina.startup.VersionLoggerListener log 
INFO: Command line argument: -Dwtp.deploy=/home/elhem/workspace/tomcat/wtpwebapps 
Aug 22, 2017 11:22:44 AM org.apache.catalina.startup.VersionLoggerListener log 
INFO: Command line argument: -Djava.endorsed.dirs=/home/elhem/workspace/tomcat/endorsed 
Aug 22, 2017 11:22:44 AM org.apache.catalina.startup.VersionLoggerListener log 
INFO: Command line argument: -Dfile.encoding=UTF-8 
Aug 22, 2017 11:22:44 AM org.apache.catalina.core.AprLifecycleListener lifecycleEvent 
INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: /usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib 
Aug 22, 2017 11:22:45 AM org.apache.coyote.AbstractProtocol init 
INFO: Initializing ProtocolHandler ["http-bio-8080"] 
Aug 22, 2017 11:22:45 AM org.apache.coyote.AbstractProtocol init 
INFO: Initializing ProtocolHandler ["ajp-bio-8009"] 
Aug 22, 2017 11:22:45 AM org.apache.catalina.startup.Catalina load 
INFO: Initialization processed in 865 ms 
Aug 22, 2017 11:22:45 AM org.apache.catalina.core.StandardService startInternal 
INFO: Starting service Catalina 
Aug 22, 2017 11:22:45 AM org.apache.catalina.core.StandardEngine startInternal 
INFO: Starting Servlet Engine: Apache Tomcat/7.0.81 
Aug 22, 2017 11:22:45 AM org.apache.catalina.startup.TldConfig execute 
INFO: 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. 
Aug 22, 2017 11:22:45 AM org.apache.catalina.startup.HostConfig deployDirectory 
INFO: Deploying web application directory /home/elhem/workspace/tomcat/webapps/host-manager 
Aug 22, 2017 11:22:45 AM org.apache.catalina.startup.HostConfig deployDirectory 
INFO: Deployment of web application directory /home/elhem/workspace/tomcat/webapps/host-manager has finished in 74 ms 
Aug 22, 2017 11:22:46 AM org.apache.catalina.startup.HostConfig deployDirectory 
INFO: Deploying web application directory /home/elhem/workspace/tomcat/webapps/manager 
Aug 22, 2017 11:22:46 AM org.apache.catalina.startup.HostConfig deployDirectory 
INFO: Deployment of web application directory /home/elhem/workspace/tomcat/webapps/manager has finished in 67 ms 
Aug 22, 2017 11:22:46 AM org.apache.catalina.startup.HostConfig deployDirectory 
INFO: Deploying web application directory /home/elhem/workspace/tomcat/webapps/ROOT 
Aug 22, 2017 11:22:46 AM org.apache.catalina.startup.HostConfig deployDirectory 
INFO: Deployment of web application directory /home/elhem/workspace/tomcat/webapps/ROOT has finished in 61 ms 
Aug 22, 2017 11:22:46 AM org.apache.catalina.startup.HostConfig deployDirectory 
INFO: Deploying web application directory /home/elhem/workspace/tomcat/webapps/docs 
Aug 22, 2017 11:22:46 AM org.apache.catalina.startup.HostConfig deployDirectory 
INFO: Deployment of web application directory /home/elhem/workspace/tomcat/webapps/docs has finished in 60 ms 
Aug 22, 2017 11:22:46 AM org.apache.catalina.startup.HostConfig deployDirectory 
INFO: Deploying web application directory /home/elhem/workspace/tomcat/webapps/examples 
Aug 22, 2017 11:22:46 AM org.apache.catalina.core.ApplicationContext log 
INFO: ContextListener: contextInitialized() 
Aug 22, 2017 11:22:46 AM org.apache.catalina.core.ApplicationContext log 
INFO: SessionListener: contextInitialized() 
Aug 22, 2017 11:22:46 AM org.apache.catalina.core.ApplicationContext log 
INFO: ContextListener: attributeAdded('org.apache.jasper.compiler.TldLocationsCache', '[email protected]') 
Aug 22, 2017 11:22:46 AM org.apache.catalina.startup.HostConfig deployDirectory 
INFO: Deployment of web application directory /home/elhem/workspace/tomcat/webapps/examples has finished in 231 ms 
Aug 22, 2017 11:22:46 AM org.apache.coyote.AbstractProtocol start 
INFO: Starting ProtocolHandler ["http-bio-8080"] 
Aug 22, 2017 11:22:46 AM org.apache.coyote.AbstractProtocol start 
INFO: Starting ProtocolHandler ["ajp-bio-8009"] 
Aug 22, 2017 11:22:46 AM org.apache.catalina.startup.Catalina start 
INFO: Server startup in 1397 ms

任何人都可以幫忙！我會很感激。

來源

2017-08-22 ellenn

你使用了錯誤的init-PARAM。你使用的是Jersey 2.x.您正在使用1.x.尋找一個1.x例子。包掃描的init-param名稱應該以'com.sun.jersey' –

感謝peeskillet開頭，但我嘗試過：com.sun.jersey.config.property.packages，但仍然有相同的錯誤。 – ellenn

你的web.xml有問題。

現在，您將創建一個名爲Jersey RESTful Application的servlet以及名稱爲PrimNumbers的servlet的映射。但服務器PrimNumbers不存在。

所以你需要做的是使servletand servlet映射使用相同的名稱。

像這樣：

<servlet> 
     <servlet-name>Jersey RESTful Application</servlet-name> 
     <servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class> 
     <init-param> 
     <param-name> jersey.config.server.provider.packages</param-name> 
     <param-value>PrimeNbs</param-value> 
     </init-param> 
    </servlet> 
    <servlet-mapping> 
     <servlet-name>Jersey RESTful Application</servlet-name> 
     <url-pattern>/*</url-pattern> 
    </servlet-mapping>

來源

2017-08-22 09:39:49

謝謝克里斯的回答，我已經改變了它，但我仍然面臨同樣的問題！ – ellenn

error404使用Jersey框架和Tomcat服務器訪問RESTful Web服務

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