time out解决方法

项目总会自动报错，但不影响项目的整体运行，报错的代码如下：

time outjava.net.ConnectException: Connection timed out: connect    at java.net.DualStackPlainSocketImpl.connect0(Native Method)    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79)    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 java.net.Socket.connect(Socket.java:528)    at java.net.Socket.<init>(Socket.java:425)    at java.net.Socket.<init>(Socket.java:280)    at org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:80)    at org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:122)    at org.apache.commons.httpclient.HttpConnection.open(HttpConnection.java:707)    at org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:387)    at org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:171)    at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:397)    at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:323)    at com.catic.mobilehos.payment.ccb.util.HttpClientUtil.httpPost(HttpClientUtil.java:111)    at com.catic.mobilehos.payment.common.WebServiceListener$2.run(WebServiceListener.java:589)    at java.util.TimerThread.mainLoop(Timer.java:555)    at java.util.TimerThread.run(Timer.java:505)GetPage:http://172.19.66.23:80/yssyywechat/ccb_findOrderByDatetime outjava.net.ConnectException: Connection timed out: connect    at java.net.DualStackPlainSocketImpl.connect0(Native Method)    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79)    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 java.net.Socket.connect(Socket.java:528)    at java.net.Socket.<init>(Socket.java:425)    at java.net.Socket.<init>(Socket.java:280)    at org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:80)    at org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:122)    at org.apache.commons.httpclient.HttpConnection.open(HttpConnection.java:707)    at org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:387)    at org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:171)    at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:397)    at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:323)    at com.catic.mobilehos.payment.ccb.util.HttpClientUtil.httpPost(HttpClientUtil.java:111)    at com.catic.mobilehos.payment.common.AutoCheck.ccbCheck(AutoCheck.java:68)    at com.catic.mobilehos.payment.common.WebServiceListener$2.run(WebServiceListener.java:592)    at java.util.TimerThread.mainLoop(Timer.java:555)    at java.util.TimerThread.run(Timer.java:505)GetPage:http://172.19.66.23:80/yssyywechat/ccb_findOrderByDate九月 27, 2017 10:03:32 上午 org.apache.jasper.compiler.TldLocationsCache tldScanJarINFO: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.time outjava.net.ConnectException: Connection timed out: connect    at java.net.DualStackPlainSocketImpl.connect0(Native Method)    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79)    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 java.net.Socket.connect(Socket.java:528)    at java.net.Socket.<init>(Socket.java:425)    at java.net.Socket.<init>(Socket.java:280)    at org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:80)    at org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:122)    at org.apache.commons.httpclient.HttpConnection.open(HttpConnection.java:707)    at org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:387)    at org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:171)    at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:397)    at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:323)    at com.catic.mobilehos.payment.ccb.util.HttpClientUtil.httpPost(HttpClientUtil.java:111)    at com.catic.mobilehos.payment.common.AutoCheck.ccbCheck(AutoCheck.java:75)    at com.catic.mobilehos.payment.common.WebServiceListener$2.run(WebServiceListener.java:592)    at java.util.TimerThread.mainLoop(Timer.java:555)    at java.util.TimerThread.run(Timer.java:505)java.lang.NullPointerException    at com.catic.mobilehos.payment.common.AutoCheck.ccbCheck(AutoCheck.java:78)    at com.catic.mobilehos.payment.common.WebServiceListener$2.run(WebServiceListener.java:592)    at java.util.TimerThread.mainLoop(Timer.java:555)    at java.util.TimerThread.run(Timer.java:505)

其实没有强迫症的无所谓，不影响项目的正常运行，其实问题是响应超时报错了，需要重新认证。