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: connect
	at 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.(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()
	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()
	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.