error404 使用 jersey 框架和 tomcat 服务器访问 Restful Web 服务

【问题标题】：error404 accessing Restful web service using jersey framework and tomcat servererror404 使用 jersey 框架和 tomcat 服务器访问 Restful Web 服务
【发布时间】：2018-01-30 12:33:29
【问题描述】：

通过此 url 访问 Restful Web 服务时遇到问题： localhost:8080/PrimNumbers/Generator/strategy

我收到了这个错误：

HTTP 状态 404 - /PrimNumbers/Generator/strategy

输入状态报告

消息/PrimNumbers/Generator/strategy

说明请求的资源不可用。

我正在使用 tomcat7.0.81 服务器和 jersey1.17 框架（我在我的项目中包含了 WEB-INF/lib 下的 jersey jar 文件）。 这是我的 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

>

这是我的 service.java（我只是在测试服务）：

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>");
    }
}

在运行我的服务器时，我收到了这些日志消息：

> 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', 'org.apache.jasper.compiler.TldLocationsCache@51542878')
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

谁能帮忙！我会很感激的。

【问题讨论】：

  • 您使用了错误的初始化参数。您正在使用的是 Jersey 2.x。您正在使用 1.x。寻找一个 1.x 的例子。包扫描的 init-param 名称应以com.sun.jersey 开头
  • 感谢 peeskillet，但我已经尝试过：com.sun.jersey.config.property.packages 但仍然有同样的错误。

标签： java eclipse rest jersey tomcat7


【解决方案1】：

您的 web.xml 有问题。

您现在创建一个名为Jersey RESTful Application 的servlet 和一个名为PrimNumbers 的servlet 的映射。但是 servler PrimNumbers 不存在。

所以你需要做的是让 servlet 和 servlet-mapping 使用相同的名称。

像这样：

  <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>

【讨论】：

  • 谢谢 Chris 的回答，我已经改了，但还是遇到同样的问题！
猜你喜欢
  • 1970-01-01
  • 2018-03-29
  • 1970-01-01
  • 1970-01-01
  • 2011-03-26
  • 1970-01-01
  • 2017-01-12
  • 2014-09-13
  • 2017-05-24
相关资源
最近更新 更多
热门标签
Java Python linux javascript Mysql C# Docker 算法 前端 SpringBoot Redis Vue spring 设计模式 .net core .net kubernetes c++ 数据库 数据结构 大数据 js 机器学习 微服务 Android Go 程序员 面试 JVM ASP.net core 云原生 人工智能 后端 PHP git CSS golang k8s Nginx Django mybatis 深度学习 多线程 React 架构 devops 爬虫 云计算 Spring Boot LeetCode