java.io.FileNotFoundException: C:\Program Files\Apache Software Foundation\Tomcat 6.0\webapps\jwgl003\upload\temp (拒绝访问。)

at java.io.FileOutputStream.open(Native Method)

at java.io.FileOutputStream.(FileOutputStream.java:179)

at java.io.FileOutputStream.(FileOutputStream.java:131)

at org.apache.commons.fileupload.disk.DiskFileItem.write(DiskFileItem.java:416)

at com.jwgl.servlet.TongGaoServlet.updateTongGao(TongGaoServlet.java:346)

at com.jwgl.servlet.TongGaoServlet.doGet(TongGaoServlet.java:73)

at com.jwgl.servlet.TongGaoServlet.doPost(TongGaoServlet.java:529)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

at com.jwgl.filter.EncodingFilter.doFilter(EncodingFilter.java:19)

at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)

at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)

at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)

at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)

at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)

at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)

at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)

at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)

at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)

at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)

at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)

at java.lang.Thread.run(Thread.java:619)

问题出现的原因：

File f = new File(filePath);

item.write(f);

如果filePath是路径，不包含文件名称(a.txt)的话，在写进 f  时则会出现这个错误

解决办法：

保证filePath 还有文件名如 D:\upload\a.txt