java.net.SocketException: Permission denied: connect

在window10，执行多线程调用接口发送数据时报错

java.net.SocketException: Permission denied: connectat java.net.DualStackPlainSocketImpl.connect0(Native Method)at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:83)at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)at java.net.Socket.connect(Socket.java:579)at sun.net.NetworkClient.doConnect(NetworkClient.java:175)at sun.net.www.http.HttpClient.openServer(HttpClient.java:432)at sun.net.www.http.HttpClient.openServer(HttpClient.java:527)at sun.net.www.http.HttpClient.<init>(HttpClient.java:211)at sun.net.www.http.HttpClient.New(HttpClient.java:308)at sun.net.www.http.HttpClient.New(HttpClient.java:326)at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:997)at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:933)at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:851)at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1092)at cn.richinfo.common.utils.HttpRequest.GetResponseString(HttpRequest.java:231)at cn.richinfo.spring.handler.RequestHandler.postRequest(RequestHandler.java:41)at cn.richinfo.spring.service.SendFlowPresentService.sendRequest(SendFlowPresentService.java:41)at cn.richinfo.spring.service.SendFlowPresentService.edit(SendFlowPresentService.java:67)at cn.richinfo.spring.service.SendFlowPresentService$$FastClassBySpringCGLIB$$b5535fe9.invoke(<generated>)at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:720)at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:281)at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:655)at cn.richinfo.spring.service.SendFlowPresentService$$EnhancerBySpringCGLIB$$7fbe26db.edit(<generated>)at cn.richinfo.spring.handler.SendFlowPresentHandler.run(SendFlowPresentHandler.java:38)

Google后发现原来是java7在一个bug。在Linux系统下执行不会出现该问题(防火墙关闭)！

Cause

1. This is a known bug in Java 7, as per this post.
2. This can be caused by anti-virus or firewall software blocking Java from connecting to the Server port.

Resolution

1. Add -Djava.net.preferIPv4Stack=true to the FISHEYE_OPTS environment variable to help enable support for IPv4 on Java 7.
2. Change the anti-virus or firewall software so that Java can connect to the server on the specified port.