[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
我试图在带有Jersey 2.19的JBoss EAP 6.2中部署一个简单的Restful服务。
应用程序类的子类:
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实现类:
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>
...
访问资源时出现以下错误(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]
根据我的理解,JBoss EAP 6.2支持Servlet 3.0,并且根据Jersey文档(第4章:应用程序部署和运行时环境),根据Servlet可插入性机制,它有效地省略了Servlet类。
请告知如何解决此问题?
注意:为了避免/抑制RESTEasy扫描JAX RS资源,我已注释掉-来自standalone.xml的子系统xmlns =“ urn:jboss:domain:jaxrs:1.0”
除非您确实需要使用Jersey而不是提供的JAX-RS实现,否则您可能要尝试以下操作:-恢复RESTEasy的子系统配置-删除应用程序中的web.xml servlet和servlet映射声明。
由于您提供了带有@ApplicationPath
批注的javax.ws.rs.core.Application
子类,因此不需要进行web.xml配置(按照我所相信的那样,按照JAX-RS 1.1规范)。
高温超导
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