JBOSS 7.1.0錯誤 - 無法找到類的公共構造函數org.jboss.resteasy.core.AsynchronousDispatcher

Question

我正試圖將基於Spring MVC的REST應用程序遷移到Jboss 7.1.0。啓動時，Jboss初始化顯示所有部署成功的war文件都正確啓動。

我在Spring MVN和Jboss的RestEasy服務之間進行集成時遇到了很多問題，我想知道這是否是jboss resteasy與Spring MVN之間的另一個衝突。

當我做出了REST服務，我得到以下錯誤的請求：

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] 

錯誤不作任何意義，我從中所承認的唯一的事情是的RESTEasy服務servlet名稱。此配置如下 - 這在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

我從一個REST專家根本不是工作正常，但javax.ws.rs.core.Application不是一個servlet。

Answer 2

問題不是RESTful服務被聲明的方式，這種方式對於JAX-RS 1.1是非常標準的（與Servlet James無關），但是它是JBoss中的一個錯誤，您需要指定RESTful資源在Application子類中，否則它將嘗試將AsyncDisp ***裝載爲RESTful服務。

Answer 3

我在JBoss 7.1.1上使用RESTEasy（沒有Spring）時也看到了這個異常。它是這樣包裝的：

​​

解決方案是排除所有RESTEasy罐子的戰爭。在Maven中，您可以通過確保任何必需的RESTEasy依賴關係在Maven的「提供的」作用域中聲明，因爲這些由JBoss提供，並排除了任何傳遞RESTEasy依賴關係（例如，參見this link）。您可以檢查是否可以通過切換到該目錄包含您的pom.xml併發出命令，例如有任何的RESTEasy依賴性：

mvn dependency:tree | grep "resteasy" 

如果您使用的JAX-RS激活web.xml中，你也可以需要切換到基於類的方法in the RESTEasy docs。這些問題的解決方案由RESTEasy開發人員here和here提及。

Answer 4

我通過執行以下步驟解決了這個問題：

步驟1.創建服務註冊類

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：編輯你的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>