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JBOSS 7.1.0错误 - 找不到类org.jboss.resteasy.core.AsynchronousDispatcher的公共构造函数。

javaspringresteasyjboss7.x
11

我正在尝试将基于Spring MVC的REST应用程序迁移到Jboss 7.1.0。在启动时，Jboss初始化显示所有war文件已成功部署，并且所有内容都正确启动。

在Spring MVN和Jboss的RestEasy服务之间进行整合时出现了一些问题，我想知道这是否是Jboss RestEasy与Spring MVN之间的另一个冲突。

当我向REST服务发出请求时，出现以下错误：

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]

错误信息毫无意义，唯一我能从中识别的是RESTEasy服务的servlet名称。这是按照以下配置设置的——在Jboss 7.0.2中工作正常。

<servlet-mapping>
        <servlet-name>javax.ws.rs.core.Application</servlet-name>
        <url-pattern>/rest/*</url-pattern>
</servlet-mapping>
请查看此链接 https://community.jboss.org/message/718189?tstart=0&_sscc=t - Sajan Chandran
4个回答
27
我曾在没有使用Spring的JBoss 7.1.1上使用RESTEasy时遇到过这个异常。它被包装成这样：
Allocate exception for servlet [project class reference]: java.lang.RuntimeException: Unable to find a public constructor for class org.jboss.resteasy.core.AsynchronousDispatcher

解决方案是从war中排除所有RESTEasy jars。在Maven中，您可以通过确保任何需要的RESTEasy依赖项声明为Maven的“provided”作用域来实现这一点，因为这些依赖项由JBoss提供，并排除任何传递性RESTEasy依赖项（请参见此链接以获取示例）。您可以通过转到包含pom.xml文件的目录并发出诸如以下命令之类的命令来检查是否有任何RESTEasy依赖项：
mvn dependency:tree | grep "resteasy"

如果您正在使用web.xml来激活JAX-RS，则可能需要切换到在RESTEasy文档中演示的基于类的方法in the RESTEasy docs。这个问题的解决方案由RESTEasy开发人员在here和here中提到。

5
javax.ws.rs.core.Application 是一个内部定义的 Servlet 名称，可以在 web.xml 中使用。 - Klaro
2

问题不在于RESTful服务的声明方式，这种方式在JAX-RS 1.1中是相当标准的（与Servlet James无关！），而是在JBoss中存在一个bug，您需要在Application子类中指定RESTful资源，否则它将尝试将AsyncDisp***挂载为RESTful服务。

1
我将通过以下步骤解决这个问题：
第一步：创建您的服务注册类。
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;
}

}

步骤2：编辑您的web.xml文件

<!-- 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>
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