Caused by: java.net.SocketException: 打开的文件过多的解决办法
weblogic下项目报错，项目报错信息如下
Caused by: javax.wsdl.WSDLException: WSDLException: faultCode=PARSER_ERROR: Error reading source with PublicId: http://112.112.12.15:7001/wsDep-web/webservice/DataExchangeWS?wsdl: java.net.SocketException: 打开的文件过多 at oracle.j2ee.ws.wsdl.xml.WSDLReaderImpl.readWSDL(WSDLReaderImpl.java:376) at oracle.j2ee.ws.wsdl.xml.WSDLReaderImpl.readWSDL(WSDLReaderImpl.java:327) at oracle.j2ee.ws.wsdl.xml.WSDLReaderImpl.readWSDL(WSDLReaderImpl.java:311) at org.apache.cxf.wsdl11.WSDLManagerImpl.loadDefinition(WSDLManagerImpl.java:263) at org.apache.cxf.wsdl11.WSDLManagerImpl.getDefinition(WSDLManagerImpl.java:206) at org.apache.cxf.wsdl11.WSDLServiceFactory.<init>(WSDLServiceFactory.java:98) ... 15 more Caused by: java.net.SocketException: 打开的文件过多 at sun.nio.ch.Net.socket0(Native Method) at sun.nio.ch.Net.socket(Net.java:423) at sun.nio.ch.Net.socket(Net.java:416) at sun.nio.ch.SocketChannelImpl.<init>(SocketChannelImpl.java:104) at sun.nio.ch.SelectorProviderImpl.openSocketChannel(SelectorProviderImpl.java:60) at java.nio.channels.SocketChannel.open(SocketChannel.java:142) at weblogic.socket.NIOSocketMuxer.newSocket(NIOSocketMuxer.java:328) at weblogic.socket.NIOSocketMuxer.newSocket(NIOSocketMuxer.java:274) at weblogic.socket.ChannelSocketFactory.createSocket(ChannelSocketFactory.java:95) at weblogic.socket.ChannelSocketFactory.createSocket(ChannelSocketFactory.java:58) at weblogic.net.http.HttpClient.openServer(HttpClient.java:391) at weblogic.net.http.HttpClient.openServer(HttpClient.java:506) at weblogic.net.http.HttpClient.New(HttpClient.java:313) at weblogic.net.http.HttpURLConnection.getHttpClient(HttpURLConnection.java:283) at weblogic.net.http.HttpURLConnection.getInputStream(HttpURLConnection.java:711) at weblogic.net.http.SOAPHttpURLConnection.getInputStream(SOAPHttpURLConnection.java:37) at org.apache.xerces.impl.XMLEntityManager.setupCurrentEntity(Unknown Source) at org.apache.xerces.impl.XMLVersionDetector.determineDocVersion(Unknown Source) at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source) at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source) at org.apache.xerces.parsers.XMLParser.parse(Unknown Source) at org.apache.xerces.parsers.DOMParser.parse(Unknown Source) at org.apache.xerces.jaxp.DocumentBuilderImpl.parse(Unknown Source) at oracle.j2ee.ws.wsdl.xml.WSDLReaderImpl.readWSDL(WSDLReaderImpl.java:371) ... 20 more ERROR [startQuartz_Worker-2] org.quartz.core.ErrorLogger.schedulerError(2425) | Job (DEFAULT.updateCrlJob threw an exception. org.quartz.SchedulerException: Job threw an unhandled exception. [See nested exception: org.springframework.scheduling.quartz.JobMethodInvocationFailedException: Invocation of method 'getUserFromYNS' on target class [class cn.com.zhulong.app.quartz.QuartzService] failed; nested exception is javax.xml.ws.WebServiceException: org.apache.cxf.service.factory.ServiceConstructionException: Failed to create service.] at org.quartz.core.JobRunShell.run(JobRunShell.java:213) at org.quartz.simpl.SimpleThreadPool$WorkerThread.run(SimpleThreadPool.java:573) Caused by: org.springframework.scheduling.quartz.JobMethodInvocationFailedException: Invocation of method 'getUserFromYNS' on target class [class cn.com.zhulong.app.quartz.QuartzService] failed; nested exception is javax.xml.ws.WebServiceException: org.apache.cxf.service.factory.ServiceConstructionException: Failed to create service. at org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean$MethodInvokingJob.executeInternal(MethodInvokingJobDetailFactoryBean.java:266) at org.springframework.scheduling.quartz.QuartzJobBean.execute(QuartzJobBean.java:75) at org.quartz.core.JobRunShell.run(JobRunShell.java:202) ... 1 more Caused by: javax.xml.ws.WebServiceException: org.apache.cxf.service.factory.ServiceConstructionException: Failed to create service. at org.apache.cxf.jaxws.ServiceImpl.<init>(ServiceImpl.java:151) at org.apache.cxf.jaxws.spi.ProviderImpl.createServiceDelegate(ProviderImpl.java:101) at javax.xml.ws.Service.<init>(Service.java:92) at cn.com.zhulong.app.exuserclient.DataExchangeWS.<init>(DataExchangeWS.java:52) at cn.com.zhulong.app.quartz.QuartzService.getZhuTiByTimeSp(QuartzService.java:361) at cn.com.zhulong.app.quartz.QuartzService.getUserFromYNS(QuartzService.java:132) at sun.reflect.GeneratedMethodAccessor354.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.springframework.util.MethodInvoker.invoke(MethodInvoker.java:269) at org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean$MethodInvokingJob.executeInternal(MethodInvokingJobDetailFactoryBean.java:257) ... 3 more Caused by: org.apache.cxf.service.factory.ServiceConstructionException: Failed to create service. at org.apache.cxf.wsdl11.WSDLServiceFactory.<init>(WSDLServiceFactory.java:100) at org.apache.cxf.jaxws.ServiceImpl.initializePorts(ServiceImpl.java:204) at org.apache.cxf.jaxws.ServiceImpl.<init>(ServiceImpl.java:149) ... 13 more Caused by: javax.wsdl.WSDLException: WSDLException: faultCode=PARSER_ERROR: Error reading source with PublicId: http://112.112.12.15:7001/wsDep-web/webservice/DataExchangeWS?wsdl: java.net.SocketException: 打开的文件过多 at oracle.j2ee.ws.wsdl.xml.WSDLReaderImpl.readWSDL(WSDLReaderImpl.java:376) at oracle.j2ee.ws.wsdl.xml.WSDLReaderImpl.readWSDL(WSDLReaderImpl.java:327) at oracle.j2ee.ws.wsdl.xml.WSDLReaderImpl.readWSDL(WSDLReaderImpl.java:311) at org.apache.cxf.wsdl11.WSDLManagerImpl.loadDefinition(WSDLManagerImpl.java:263) at org.apache.cxf.wsdl11.WSDLManagerImpl.getDefinition(WSDLManagerImpl.java:206) at org.apache.cxf.wsdl11.WSDLServiceFactory.<init>(WSDLServiceFactory.java:98) ... 15 more Caused by: java.net.SocketException: 打开的文件过多 at sun.nio.ch.Net.socket0(Native Method) at sun.nio.ch.Net.socket(Net.java:423) at sun.nio.ch.Net.socket(Net.java:416) at sun.nio.ch.SocketChannelImpl.<init>(SocketChannelImpl.java:104) at sun.nio.ch.SelectorProviderImpl.openSocketChannel(SelectorProviderImpl.java:60) at java.nio.channels.SocketChannel.open(SocketChannel.java:142) at weblogic.socket.NIOSocketMuxer.newSocket(NIOSocketMuxer.java:328) at weblogic.socket.NIOSocketMuxer.newSocket(NIOSocketMuxer.java:274) at weblogic.socket.ChannelSocketFactory.createSocket(ChannelSocketFactory.java:95) at weblogic.socket.ChannelSocketFactory.createSocket(ChannelSocketFactory.java:58) at weblogic.net.http.HttpClient.openServer(HttpClient.java:391) at weblogic.net.http.HttpClient.openServer(HttpClient.java:506) at weblogic.net.http.HttpClient.New(HttpClient.java:313) at weblogic.net.http.HttpURLConnection.getHttpClient(HttpURLConnection.java:283) at weblogic.net.http.HttpURLConnection.getInputStream(HttpURLConnection.java:711) at weblogic.net.http.SOAPHttpURLConnection.getInputStream(SOAPHttpURLConnection.java:37) at org.apache.xerces.impl.XMLEntityManager.setupCurrentEntity(Unknown Source) at org.apache.xerces.impl.XMLVersionDetector.determineDocVersion(Unknown Source) at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source) at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source) at org.apache.xerces.parsers.XMLParser.parse(Unknown Source) at org.apache.xerces.parsers.DOMParser.parse(Unknown Source) at org.apache.xerces.jaxp.DocumentBuilderImpl.parse(Unknown Source) at oracle.j2ee.ws.wsdl.xml.WSDLReaderImpl.readWSDL(WSDLReaderImpl.java:371) ... 20 more
报此错误是由于系统内核对进程打开文件个数的限制，默认为1024
一、 先从Linux设置入手
(1) ulimit -a (查看资源设置情况)
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 30525
max locked memory (kbytes, -l) 64
max memory size (kbytes, -m) unlimited
open files (-n) 1024
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 10240
cpu time (seconds, -t) unlimited
max user processes (-u) 1024
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited
open files默认是1024
为了使服务器重启设置还能生效， 采取永久改变的方法。
vim /etc/security/limits.conf
在文档最后添加
* soft nofile 65535 * hard nofile 65535
(2) vim /etc/pam.d/login
在文档最后添加
session required /lib/security/pam_limits.so
之后重启服务器
修改成功，成功解决问题
另外：
查看所有进程的文件打开数
lsof |wc -l （wc -l表示统计行数
| 则表示一个管道的意思，可以理解为东西从管道的一边流向另外一边。
）
查看某个进程打开的文件数
lsof -p pid |wc -l
二、 程序
记得在finally语句块里面关闭资源连接， 如：
这种写法有可能会导致资源打开不会被关闭，最好还是写在finally里
