我试图让我的第一个Jersey Web服务项目正常工作,但出现此错误Jersey: The requested resource is not available.我已经通过eclispe Maven安装了Jersey 2.16并安装了Tomcat 8.0.21我在scr/main/java - org.test.messanger里面放了MessageResource.java类

我正在输入此链接:

http://localhost:8080/messanger/webapi/messages

如果我点击此链接http://localhost:8080/messanger/webapi/myresource,我将得到Got it!

我用以下数据将Jersy和maven一起添加:


org.glassfish.jersey.archetypes
泽西-快速入门-webapp
2.16


MessageResource.java

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


@Path("/messages")
public class MessageResource {

    @GET
    @Produces(MediaType.TEXT_PLAIN)
    public String getMessages(){
        return "Hello world";
    }

}


工作代码:

package org.test.messanger;

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

/**
 * Root resource (exposed at "myresource" path)
 */
@Path("myresource")
public class MyResource {

    /**
     * Method handling HTTP GET requests. The returned object will be sent
     * to the client as "text/plain" media type.
     *
     * @return String that will be returned as a text/plain response.
     */
    @GET
    @Produces(MediaType.TEXT_PLAIN)
    public String getIt() {
        return "Got it!";
    }
}


web.xml

<?xml version="1.0" encoding="UTF-8"?>
<!-- This web.xml file is not required when using Servlet 3.0 container,
     see implementation details http://jersey.java.net/nonav/documentation/latest/jax-rs.html -->
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
    <servlet>
        <servlet-name>Jersey Web Application</servlet-name>
        <servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
        <init-param>
            <param-name>jersey.config.server.provider.packages</param-name>
            <param-value>org.test.messanger</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>Jersey Web Application</servlet-name>
        <url-pattern>/webapi/*</url-pattern>
    </servlet-mapping>
</web-app>

最佳答案

做一件事。


从target / messenger.jar复制messenger.jar并将其粘贴到位置TOMCAT_DIR / tomcat / webapps的tomcat文件夹中。
 TOMCAT_DIR是您本地的tomcat的目录位置。
现在转到TOMCAT_DIR / tomcat / bin并启动startup.bat或startup.sh。
现在打开URL http://localhost:8080/messanger/webapi/messages。这应该工作。


如果可行,请从eclipse中删除已配置的tomcat服务器,然后再配置一次。

08-25 08:40
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