尝试使用java file-io在Linux上创建文件？

Question

无法在我的linux服务器上创建文件，在我的本地测试文件上工作良好。请帮我解决这个问题，我不知道发生了什么，目录存在，但html不存在，它应该从代码中创建。

Thu Oct 22 03:04:06 PDT 2015============ fileNameBzAEqwsEk20Fk21Pl30Qj33Ss26Aj17BcdDZrt.html
    Thu Oct 22 03:04:06 PDT 2015============ dirFileName/home/bms/html/webversion/BzAEqwsEk20Fk21Pl30Qj33Ss26Aj17BcdDZrt.html
    java.io.IOException: No such file or directory
            at java.io.UnixFileSystem.createFileExclusively(Native Method)
            at java.io.File.createNewFile(File.java:883)
            at com.PMSystems.CampaignManager.createWebVersion(CampaignManager.java:80)
            at com.PMSystems.api.APICommandManager.executeCreateCampaignCommand(APICommandManager.java:1057)
            at com.PMSystems.api.APICommandManager.executeOneToOneEmailCampaignCommand(APICommandManager.java:1293)
            at com.PMSystems.api.APICommandManager.proccessCommand(APICommandManager.java:283)
            at com.PMSystems.servlets.APIServlet.doServices(APIServlet.java:181)
            at com.PMSystems.servlets.APIServlet.doPost(APIServlet.java:195)
            at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
            at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
            at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
            at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
            at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:654)
            at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:445)
            at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:379)
            at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:292)
            at com.PMSystems.servlets.APIFilter.doFilter(APIFilter.java:56)
            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:175)
            at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:563)
            at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
            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:263)
            at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190)
            at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:283)
            at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:767)
            at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:697)
            at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:889)
            at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690)
            at java.lang.Thread.run(Thread.java:662)

我的代码：

File file = new File(dirFileName);
        file.delete();
        file.createNewFile();
        DataOutputStream dataOut = new DataOutputStream(new FileOutputStream(file));
        dataOut.writeBytes(view);

Answer 1

从开发机器(通常是Windows)转换到linux服务器时，可能导致问题的两个常见问题是

-Case灵敏度。在linux服务器上，您应该检查您的路径是否也是有效的，不区分大小写。例如，如果你在文件系统中有一个名为dirfilename的文件夹，而你的java路径是"dirFileName“，这将在windows上运行，但不能在linux服务器上运行。

-File权限。运行您的程序的jvm可能由对您试图访问的路径没有权限的用户运行。您可以使用'ps aux‘命令获取有关进程如何运行的更多信息。