Java Resteasy客户端在方法引发异常后保持连接分配

我目前正在使用TJWSEmbeddedJaxrsServer来帮助我完成用Resteasy创建的RESTful API测试，它工作得很好。 但是当任何被调用的方法抛出异常时就会出现问题：Reasteasy客户端丢失并仍然保持连接，不允许其他测试方法调用RESTful服务。即使您实例化了一个可以打开异常并在嵌入式服务器中使用它的提供程序，也会发生这种情况

有人能帮我吗

要模拟问题，实际上很容易：

下载Mark Paluch在中提供的示例 将测试类更改为如下所示： 公共类InMemoryRestTest{

@Path("/myresource")
public static class MyResource {

    @POST
    @Consumes(MediaType.TEXT_PLAIN)
    @Produces(MediaType.APPLICATION_XML)
    public MyModel createMyModel(int number) throws Exception {
        // supose this is a Business exception
        throw new Exception("Test");
    }

}

public static MyResource sut = new MyResource();
public static InMemoryRestServer server;

@BeforeClass
public static void beforeClass() throws Exception {
    server = InMemoryRestServer.create(sut);
}

@AfterClass
public static void afterClass() throws Exception {
    server.close();
}

@Test
public void postSimpleBody() throws Exception {
    // This one throws the "Exception" exception and passes     
    Response response = server.newRequest("/myresource").request().buildPost(Entity.text("42")).invoke();
    assertEquals(Response.Status.INTERNAL_SERVER_ERROR.getStatusCode(), response.getStatus());
}

@Test
public void postAnother() throws Exception {
    // This one fails with "Invalid use of BasicClientConnManager: connection still allocated."
    Response response = server.newRequest("/myresource").request().buildPost(Entity.text("20")).invoke();
    assertEquals(Response.Status.INTERNAL_SERVER_ERROR.getStatusCode(), response.getStatus());
}

}

瞧！当另一个POST测试运行时，将发生以下错误：

javax.ws.rs.ProcessingException: Unable to invoke request
    at org.jboss.resteasy.client.jaxrs.engines.ApacheHttpClient4Engine.invoke(ApacheHttpClient4Engine.java:287)
    at org.jboss.resteasy.client.jaxrs.internal.ClientInvocation.invoke(ClientInvocation.java:407)
    at biz.paluch.rest.test.InMemoryRestTest.postSimpleBody(InMemoryRestTest.java:51)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
    at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:86)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
Caused by: java.lang.IllegalStateException: Invalid use of BasicClientConnManager: connection still allocated.
Make sure to release the connection before allocating another one.
    at org.apache.http.impl.conn.BasicClientConnectionManager.getConnection(BasicClientConnectionManager.java:162)
    at org.apache.http.impl.conn.BasicClientConnectionManager$1.getConnection(BasicClientConnectionManager.java:139)
    at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:456)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:906)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:805)
    at org.jboss.resteasy.client.jaxrs.engines.ApacheHttpClient4Engine.invoke(ApacheHttpClient4Engine.java:283)
    ... 27 more

---

您需要配置ResteasyClientBuilder以使用连接池。按以下方式修改InMemoryRestServer类的withDefaults方法

//this.resteasyClient = new ResteasyrestEasyClientBuilder().build();
ResteasyrestEasyClientBuilder restEasyClientBuilder = new ResteasyrestEasyClientBuilder();
restEasyClientBuilder = restEasyClientBuilder.connectionPoolSize(20);
this.resteasyClient = restEasyClientBuilder.build();

---

通过这种方式，您的两个测试用例都应该毫无例外地运行，虽然默认的ResteasyClientBuilder不使用连接池，这意味着您一次只能有一个并行连接，但它们似乎都抛出了AssertionError。 因此，您必须确保关闭您的响应，即response.close，以释放唯一的连接

请参见此处的响应实现：

问候,

---

Bernard.

在JavaSE7及更高版本中，更干净的方法是使用try-with-resources。示例代码段如下所示：

try(response = server.newRequest("...").request().buildPost(Entity.text("...")).invoke())
{ 
   /* response handling logic */ 
}

---

好的，这暂时解决了。这允许在嵌入式服务器停止应答之前发生20个异常。但我真正需要的是一种在occours异常后释放连接的方法。你知道我怎样才能做到吗？谢谢我就是这么做的。connectionPoolSize1似乎解决了这个问题。我用同一个客户机构造了一个包含1000次调用的循环，问题没有出现。谢谢是的，这解决了问题。必须对代码做一点更改，因为在关闭响应后，调用response.readEntity会抛出和异常，但我在关闭响应之前成功捕获了实体。谢谢非常感谢，我试图关闭连接，但是当我尝试时，我无法使用其他方法。但是当我读到你的回复时，我意识到我需要结束我的回复。

@Test
public void postBody() throws Exception {          
    Response response = null;
    try {
        response = server.newRequest("...").request().buildPost(Entity.text("...")).invoke();           
    } finally {
        response.close();
    }   
}

try(response = server.newRequest("...").request().buildPost(Entity.text("...")).invoke())
{ 
   /* response handling logic */ 
}