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[英]Jboss: RestEasy + spring dispatcher servlet = no servlet class has been specified for servlet javax.ws.rs.core.Application
[英]Jersey 2.19 - JBoss EAP 6.2 - JBWEB000260: No servlet class has been specified for servlet
我試圖在帶有Jersey 2.19的JBoss EAP 6.2中部署一個簡單的Restful服務。
應用程序類的子類:
package com.jersey.mywebapp;
import javax.ws.rs.ApplicationPath;
import javax.ws.rs.core.Application;
import java.util.HashSet;
import java.util.Set;
@ApplicationPath("resources")
public class MyApp extends Application {
public Set<Class<?>> getClasses() {
Set<Class<?>> s = new HashSet<Class<?>>();
s.add(MyResource.class);
return s;
}
}
RS實現類:
package com.jersey.mywebapp;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
@Path("myresource")
public class MyResource {
@GET
@Produces(MediaType.TEXT_PLAIN)
public String getIt() {
return "Got it!";
}
}
我的部署描述符:
..
<servlet>
<display-name>My JAX-RS Servlet</display-name>
<servlet-name>com.jersey.mywebapp.MyApp</servlet-name>
<init-param>
<param-name>javax.ws.rs.Application</param-name>
<param-value>com.jersey.mywebapp.MyApp</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>com.jersey.mywebapp.MyApp</servlet-name>
<url-pattern>/resources/*</url-pattern>
</servlet-mapping>
...
訪問資源時出現以下錯誤(localhost:8080 / {context} / resources / myresource)
21:51:29,437 INFO [org.apache.catalina.core.ContainerBase.[jboss.web]. [default-host].[/rpa]] (http-/127.0.0.1:8080-1) JBWEB000264: Marking servlet com.jersey.mywebapp.MyApp as unavailable
21:51:29,446 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/rpa].[com.jersey.mywebapp.MyApp]] (http-/127.0.0.1:8080-1) JBWEB000235: Allocate exception for servlet com.
jersey.mywebapp.MyApp: javax.servlet.ServletException: JBWEB000260: No servlet class has been specified for servlet com.jersey.mywebapp.MyApp
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1147) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:950) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:151) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:149) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:169) [jboss-as-web-7.3.0.Final-redhat-14.jar:7.3.0.Final-redhat-14]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:145) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:97) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:102) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:336) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:653) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:920) [jbossweb-7.2.2.Final-redhat-1.jar:7.2.2.Final-redhat-1]
at java.lang.Thread.run(Thread.java:780) [vm.jar:1.7.0]
根據我的理解,JBoss EAP 6.2支持Servlet 3.0,並且根據Jersey文檔(第4章:應用程序部署和運行時環境),根據Servlet可插入性機制,它有效地省略了Servlet類。
請告知如何解決此問題?
注意:為了避免/抑制RESTEasy掃描JAX RS資源,我已注釋掉-來自standalone.xml的子系統xmlns =“ urn:jboss:domain:jaxrs:1.0”
除非您確實需要使用Jersey而不是提供的JAX-RS實現,否則您可能要嘗試以下操作:-恢復RESTEasy的子系統配置-刪除應用程序中的web.xml servlet和servlet映射聲明。
由於您提供了帶有@ApplicationPath
批注的javax.ws.rs.core.Application
子類,因此不需要進行web.xml配置(按照我所相信的那樣,按照JAX-RS 1.1規范)。
高溫超導
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