我正在使用Slack的传入钩子向Java中的公共频道发送通知。
在我们的例子中，对服务器的第一个请求工作正常。
随后，如果我发送其他消息，则在相同的松弛URL上，请求超时，但出现以下异常：
java.net.ConnectException: Operation timed out
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at sun.security.ssl.SSLSocketImpl.connect(SSLSocketImpl.java:668)
at org.apache.http.conn.ssl.SSLSocketFactory.connectSocket(SSLSocketFactory.java:532)
at org.apache.http.conn.ssl.SSLSocketFactory.connectSocket(SSLSocketFactory.java:409)
at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:177)
at org.apache.http.impl.conn.ManagedClientConnectionImpl.open(ManagedClientConnectionImpl.java:304)
at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:611)
at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:446)
at org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:882)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82)
at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:55)
at org.apache.http.client.HttpClient$execute$0.call(Unknown Source)
at com.jayway.restassured.internal.RequestSpecificationImpl$RestAssuredHttpBuilder.doRequest(RequestSpecificationImpl.groovy:1691)
at com.jayway.restassured.internal.http.HTTPBuilder.post(HTTPBuilder.java:333)
at com.jayway.restassured.internal.http.HTTPBuilder$post$2.call(Unknown Source)
at com.jayway.restassured.internal.RequestSpecificationImpl.sendRequest(RequestSpecificationImpl.groovy:1032)
at com.jayway.restassured.internal.RequestSpecificationImpl.this$2$sendRequest(RequestSpecificationImpl.groovy)
at sun.reflect.GeneratedMethodAccessor61.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(ingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:324)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1207)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1016)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:807)
at com.jayway.restassured.internal.RequestSpecificationImpl.invokeMethod(RequestSpecificationImpl.groovy)
at org.codehaus.groovy.runtime.callsite.PogoInterceptableSite.call(PogoInterceptableSite.java:45)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:128)
at com.jayway.restassured.internal.filter.SendRequestFilter.filter(SendRequestFilter.groovy:31)
at com.jayway.restassured.filter.Filter$filter.call(Unknown Source)
at com.jayway.restassured.internal.filter.FilterContextImpl.next(FilterContextImpl.groovy:49)
at com.jayway.restassured.filter.FilterContext$next.call(Unknown Source)
at com.jayway.restassured.internal.RequestSpecificationImpl.invokeFilterChain(RequestSpecificationImpl.groovy:926)
at sun.reflect.GeneratedMethodAccessor55.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:324)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1207)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1016)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:807)
at com.jayway.restassured.internal.RequestSpecificationImpl.invokeMethod(RequestSpecificationImpl.groovy)
at org.codehaus.groovy.runtime.callsite.PogoInterceptableSite.call(PogoInterceptableSite.java:45)
at org.codehaus.groovy.runtime.callsite.PogoInterceptableSite.callCurrent(PogoInterceptableSite.java:55)
at ehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:149)
at com.jayway.restassured.internal.RequestSpecificationImpl.applyPathParamsAndSendRequest(RequestSpecificationImpl.groovy:1347)
at com.jayway.restassured.internal.RequestSpecificationImpl.this$2$applyPathParamsAndSendRequest(RequestSpecificationImpl.groovy)
at sun.reflect.GeneratedMethodAccessor53.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:90)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:324)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1207)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1016)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:807)
at com.jayway.restassured.internal.RequestSpecificationImpl.invokeMethod(RequestSpecificationImpl.groovy)
at org.codehaus.groovy.runtime.callsite.PogoInterceptableSite.call(PogoInterceptableSite.java:45)
at org.codehaus.groovy.runtime.callsite.PogoInterceptableSite.callCurrent(PogoInterceptableSite.java:55)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.callCurrent(AbstractCallSite.java:149)
at com.jayway.restassured.internal.RequestSpecificationImpl.post(RequestSpecificationImpl.groovy:155)
at com.jayway.restassured.internal.RequestSpecificationImpl.post(RequestSpecificationImpl.groovy)
现在当抛出此异常时，我正在从其他客户端（Postman）发出一个具有相同请求主体的发布请求，获得200 OK响应。
为什么请求是从一个来源失败而是从另一个来源失败，它正在按预期工作？
非常感谢任何帮助。