Java Jersey2 示例休息服务失败
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时间：2020-08-13 14:36:50 来源:igfitidea点击:
Jersey2 sample rest service failing
提问by Prasanth
I am trying to build a sample REST service using Jersey2:
我正在尝试使用 Jersey2 构建示例 REST 服务：
Here are my POM dependencies:
这是我的 POM 依赖项：
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.core</groupId>
<artifactId>jersey-client</artifactId>
<version>2.4.1</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.containers</groupId>
<artifactId>jersey-container-servlet</artifactId>
<version>2.6</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.core</groupId>
<artifactId>jersey-server</artifactId>
<version>2.6</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.bundles.repackaged</groupId>
<artifactId>jersey-guava</artifactId>
<version>2.6</version>
</dependency>
</dependencies>
And here is my web.xml:
这是我的 web.xml：
<web-app>
<display-name>jerseysample</display-name>
<servlet>
<servlet-name>Jersey REST Service</servlet-name>
<servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
<init-param>
<param-name>javax.ws.rs.Application</param-name>
<param-value>com.adaequare.rest.config.JerseyResourceInitializer</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Jersey REST Service</servlet-name>
<url-pattern>/rest/*</url-pattern>
</servlet-mapping>
</web-app>
Here is my ResourceConfig implementation:
这是我的 ResourceConfig 实现：
package com.adaequare.rest.config;
import org.glassfish.jersey.server.ResourceConfig;
public class JerseyResourceInitializer extends ResourceConfig {
public JerseyResourceInitializer() {
packages(true, "com.adaequare.resource");
}
}
And finally here is my sample class:
最后这是我的示例类：
package com.adaequare.resource;
import javax.ws.rs.Consumes;
import javax.ws.rs.GET;
import javax.ws.rs.PUT;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
@Path("/hello")
public class Hello {
@GET
@Produces(MediaType.TEXT_HTML)
public String sayHtmlHello(){
return "<html><title>Hello Jersey</title><body><h1>Hello Jersey</h1></body></html>";
}
@GET
@Produces(MediaType.TEXT_PLAIN)
public String sayPlainTextHello() {
return "Hello Jersey";
}
// This method is called if XML is request
@GET
@Produces(MediaType.TEXT_XML)
public String sayXMLHello() {
return "<?xml version=\"1.0\"?>" + "<hello> Hello Jersey" + "</hello>";
}
}
On deploying it to Tomcat, I tried to access the following URL:
在将其部署到 Tomcat 时，我尝试访问以下 URL：
http://localhost:8080/jerseysample/rest/hello
Here is the exception I am getting:
这是我得到的例外：
javax.servlet.ServletException: Servlet.init() for servlet Jersey REST Service threw exception
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:947)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1009)
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1852)
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
java.lang.Thread.run(Thread.java:619)
root cause
java.lang.NoSuchFieldError: INCLUDE_ALL
org.glassfish.jersey.server.ResourceConfig$State.<init>(ResourceConfig.java:110)
org.glassfish.jersey.server.ResourceConfig.<init>(ResourceConfig.java:351)
org.glassfish.jersey.server.ResourceConfig$WrappingResourceConfig.<init>(ResourceConfig.java:1016)
org.glassfish.jersey.server.ResourceConfig.forApplicationClass(ResourceConfig.java:325)
org.glassfish.jersey.servlet.WebComponent.createResourceConfig(WebComponent.java:459)
org.glassfish.jersey.servlet.WebComponent.<init>(WebComponent.java:302)
org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:168)
org.glassfish.jersey.servlet.ServletContainer.init(ServletContainer.java:358)
javax.servlet.GenericServlet.init(GenericServlet.java:160)
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:947)
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1009)
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1852)
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
java.lang.Thread.run(Thread.java:619)
Not able to understand what I am missing. Can some one please point out?
无法理解我所缺少的。有人可以指出吗？
采纳答案by Peter Keller
All Jersey dependencies should use the same version, i. e. for org.glassfish.jersey.coreit should be 2.6instead of 2.4.1.
所有 Jersey 依赖项都应该使用相同的版本，即org.glassfish.jersey.core它应该是2.6而不是2.4.1.
