JBOSS 7.1.0错误 - 无法找到类的公共构造函数org.jboss.resteasy.core.AsynchronousDispatcher

Question

我正试图将基于Spring MVC的REST应用程序迁移到Jboss 7.1.0。启动时，Jboss初始化显示所有部署成功的war文件都正确启动。

我在Spring MVN和Jboss的RestEasy服务之间进行集成时遇到了很多问题，我想知道这是否是jboss resteasy与Spring MVN之间的另一个冲突。

当我做出了REST服务，我得到以下错误的请求：

12:52:31,541 INFO [org.springframework.web.context.ContextLoader] (MSC service thread 1-5) Root WebApplicationContext: initialization completed in 3035 ms 
12:52:31,845 INFO [org.jboss.web] (MSC service thread 1-5) JBAS018210: Registering web context: /MyRestService 
12:52:31,875 INFO [org.jboss.as] (MSC service thread 1-5) JBAS015874: JBoss AS 7.1.0.Final "Thunder" started in 53526ms - Started 390 of 468 services (72 services are passive or on-demand) 
12:52:32,034 INFO [org.jboss.as.server] (DeploymentScanner-threads - 2) JBAS018559: Deployed "MyRestService.war" 
12:54:10,117 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/MyRestService]] (http--127.0.0.1-8080-1) StandardWrapper.Throwable: java.lang.RuntimeException: Unable to find a public constructor for class org.jboss.resteasy.core.AsynchronousDispatcher 
     at org.jboss.resteasy.plugins.server.resourcefactory.POJOResourceFactory.registered(POJOResourceFactory.java:35) [resteasy-jaxrs-2.3.1.GA.jar:] 
     at org.jboss.resteasy.core.ResourceMethodRegistry.addResourceFactory(ResourceMethodRegistry.java:121) [resteasy-jaxrs-2.3.1.GA.jar:] 
     at org.jboss.resteasy.core.ResourceMethodRegistry.addResourceFactory(ResourceMethodRegistry.java:107) [resteasy-jaxrs-2.3.1.GA.jar:] 
     at org.jboss.resteasy.core.ResourceMethodRegistry.addResourceFactory(ResourceMethodRegistry.java:84) [resteasy-jaxrs-2.3.1.GA.jar:] 
     at org.jboss.resteasy.core.ResourceMethodRegistry.addPerRequestResource(ResourceMethodRegistry.java:73) [resteasy-jaxrs-2.3.1.GA.jar:] 
     at org.jboss.resteasy.spi.ResteasyDeployment.registration(ResteasyDeployment.java:367) [resteasy-jaxrs-2.3.1.GA.jar:] 
     at org.jboss.resteasy.spi.ResteasyDeployment.start(ResteasyDeployment.java:225) [resteasy-jaxrs-2.3.1.GA.jar:] 
     at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.init(ServletContainerDispatcher.java:67) [resteasy-jaxrs-2.3.1.GA.jar:] 
     at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.init(HttpServletDispatcher.java:36) [resteasy-jaxrs-2.3.1.GA.jar:] 
     at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1202) [jbossweb-7.0.10.Final.jar:] 
     at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:952) [jbossweb-7.0.10.Final.jar:] 
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:188) [jbossweb-7.0.10.Final.jar:] 
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) [jbossweb-7.0.10.Final.jar:] 
     at org.jboss.as.jpa.interceptor.WebNonTxEmCloserValve.invoke(WebNonTxEmCloserValve.java:50) [jboss-as-jpa-7.1.0.Final.jar:7.1.0.Final] 
     at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:154) [jboss-as-web-7.1.0.Final.jar:7.1.0.Final] 
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155) [jbossweb-7.0.10.Final.jar:] 
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.10.Final.jar:] 
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.10.Final.jar:] 
     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368) [jbossweb-7.0.10.Final.jar:] 
     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [jbossweb-7.0.10.Final.jar:] 
     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671) [jbossweb-7.0.10.Final.jar:] 
     at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930) [jbossweb-7.0.10.Final.jar:] 
     at java.lang.Thread.run(Thread.java:619) [rt.jar:1.6.0_07] 

12:54:10,194 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/MyRestService].[javax.ws.rs.core.Application]] (http--127.0.0.1-8080-1) Allocate exception for servlet javax.ws.rs.core.Application: java.lang.RuntimeException: Unable to find a public constructor for class org.jboss.resteasy.core.AsynchronousDispatcher 
     at org.jboss.resteasy.plugins.server.resourcefactory.POJOResourceFactory.registered(POJOResourceFactory.java:35) [resteasy-jaxrs-2.3.1.GA.jar:] 
     at org.jboss.resteasy.core.ResourceMethodRegistry.addResourceFactory(ResourceMethodRegistry.java:121) [resteasy-jaxrs-2.3.1.GA.jar:] 
     at org.jboss.resteasy.core.ResourceMethodRegistry.addResourceFactory(ResourceMethodRegistry.java:107) [resteasy-jaxrs-2.3.1.GA.jar:] 
     at org.jboss.resteasy.core.ResourceMethodRegistry.addResourceFactory(ResourceMethodRegistry.java:84) [resteasy-jaxrs-2.3.1.GA.jar:] 
     at org.jboss.resteasy.core.ResourceMethodRegistry.addPerRequestResource(ResourceMethodRegistry.java:73) [resteasy-jaxrs-2.3.1.GA.jar:] 
     at org.jboss.resteasy.spi.ResteasyDeployment.registration(ResteasyDeployment.java:367) [resteasy-jaxrs-2.3.1.GA.jar:] 
     at org.jboss.resteasy.spi.ResteasyDeployment.start(ResteasyDeployment.java:225) [resteasy-jaxrs-2.3.1.GA.jar:] 
     at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.init(ServletContainerDispatcher.java:67) [resteasy-jaxrs-2.3.1.GA.jar:] 
     at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.init(HttpServletDispatcher.java:36) [resteasy-jaxrs-2.3.1.GA.jar:] 
     at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1202) [jbossweb-7.0.10.Final.jar:] 
     at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:952) [jbossweb-7.0.10.Final.jar:] 
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:188) [jbossweb-7.0.10.Final.jar:] 
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161) [jbossweb-7.0.10.Final.jar:] 
     at org.jboss.as.jpa.interceptor.WebNonTxEmCloserValve.invoke(WebNonTxEmCloserValve.java:50) [jboss-as-jpa-7.1.0.Final.jar:7.1.0.Final] 
     at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java:154) [jboss-as-web-7.1.0.Final.jar:7.1.0.Final] 
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155) [jbossweb-7.0.10.Final.jar:] 
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) [jbossweb-7.0.10.Final.jar:] 
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) [jbossweb-7.0.10.Final.jar:] 
     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:368) [jbossweb-7.0.10.Final.jar:] 
     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877) [jbossweb-7.0.10.Final.jar:] 
     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:671) [jbossweb-7.0.10.Final.jar:] 
     at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:930) [jbossweb-7.0.10.Final.jar:] 
     at java.lang.Thread.run(Thread.java:619) [rt.jar:1.6.0_07] 

错误不作任何意义，我从中所承认的唯一的事情是的RESTEasy服务servlet名称。此配置如下 - 这在JBoss中7.0.2

<servlet-mapping> 
     <servlet-name>javax.ws.rs.core.Application</servlet-name> 
     <url-pattern>/rest/*</url-pattern> 
</servlet-mapping> 

Answer 1

我从一个REST专家根本不是工作正常，但javax.ws.rs.core.Application不是一个servlet。

Answer 2

问题不是RESTful服务被声明的方式，这种方式对于JAX-RS 1.1是非常标准的（与Servlet James无关），但是它是JBoss中的一个错误，您需要指定RESTful资源在Application子类中，否则它将尝试将AsyncDisp ***装载为RESTful服务。

Answer 3

我在JBoss 7.1.1上使用RESTEasy（没有Spring）时也看到了这个异常。它是这样包装的：

​​

解决方案是排除所有RESTEasy罐子的战争。在Maven中，您可以通过确保任何必需的RESTEasy依赖关系在Maven的“提供的”作用域中声明，因为这些由JBoss提供，并排除了任何传递RESTEasy依赖关系（例如，参见this link）。您可以检查是否可以通过切换到该目录包含您的pom.xml并发出命令，例如有任何的RESTEasy依赖性：

mvn dependency:tree | grep "resteasy" 

如果您使用的JAX-RS激活web.xml中，你也可以需要切换到基于类的方法in the RESTEasy docs。这些问题的解决方案由RESTEasy开发人员here和here提及。

Answer 4

我通过执行以下步骤解决了这个问题：

步骤1.创建服务注册类

public class RESTApplication extends javax.ws.rs.core.Application { 

private Set<Object> singletons = new HashSet<Object>(); 

public RESTApplication() { 
    singletons.add(new RestService()); 
} 

@Override 
public Set<Object> getSingletons() { 
    return singletons; 
} 

}

第2步：编辑你的web.xml

<!-- Resteasy --> 
<context-param> 
    <param-name>resteasy.servlet.mapping.prefix</param-name> 
    <param-value>/rest</param-value> 
</context-param> 

<servlet> 
    <servlet-name>resteasy-servlet</servlet-name> 
    <servlet-class> 
     org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher 
      </servlet-class> 
    <init-param> 
     <param-name>javax.ws.rs.Application</param-name> 
     <param-value>yourpackage.RESTApplication</param-value> 
    </init-param> 
</servlet> 

<servlet-mapping> 
    <servlet-name>resteasy-servlet</servlet-name> 
    <url-pattern>/rest/* 
    </url-pattern> 
</servlet-mapping>