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SFTP Java-管道闭合Jsch异常

jsch sftp mule authentication java
  •  3
  • Karthi  · 技术社区  · 7 年前

    我正在研究一种java方法,将文件从一个位置复制到另一个远程位置。我的代码如下。我试过使用 jsch 0.1.42和;0.1.50和;0.1.54 

          public static void processFiles(ArrayList<String> FilesToBeCopied, String destFilePath) throws IOException {
        SftpClient client = new SftpClient("karthick");
        String keyFilePath = "/ab/c/d/id_rsa";
        String sftpUser = "karthickkb";
        client.login(sftpUser, keyFilePath, null);
        client.changeWorkingDirectory(destFilePath);
        Configuration conf = new Configuration();
        FileSystem fs = FileSystem.get(conf);
        FSDataInputStream fsdisPath = null;
        String filePath = null;
        for (String sourcefilePath : FilesToBeCopied) {
            try {
                filePath = sourcefilePath;
                Path inputPath = new Path(filePath);
                fsdisPath = fs.open(inputPath);
                BufferedInputStream bis = new BufferedInputStream(fsdisPath);
                client.storeFile(inputPath.getName(), bis);
                fsdisPath.close();
                fsdisPath = null;
            } catch (Exception ex) {
                ex.printStackTrace();
            } finally {
                try {
                    if (client != null) {
                        client.disconnect();


        }
                if (fsdisPath != null) {
                    fsdisPath.close();
                }
            } catch (Exception ex) {
                ex.printStackTrace();
            }
        }
    }

}

}

    使用Jsch 0.1.42时的错误代码是 我在使用jsch 0.1.42时收到以下错误代码。 

         java.io.IOException: java.io.IOException: Pipe closed
    at org.mule.transport.sftp.SftpClient.storeFile(SftpClient.java:390)
    at karthickArchive.archiveMigration.sftpFileUtil.processFiles(sftpFileUtil.java:58)
    at karthickArchive.archiveMigration.getFileUtility.main  (getFileUtility.java:69)

     17/08/14 07:06:41 ERROR sftp.SftpClient: Error writing data over SFTP service, error was: java.io.IOException: Pipe closed
    4: java.io.IOException: Pipe closed
    at com.jcraft.jsch.ChannelSftp._put(ChannelSftp.java:578)
    at com.jcraft.jsch.ChannelSftp.put(ChannelSftp.java:439)
    at com.jcraft.jsch.ChannelSftp.put(ChannelSftp.java:406)
    at org.mule.transport.sftp.SftpClient.storeFile(SftpClient.java:385)
    at karthickArchive.archiveMigration.sftpFileUtil.processFiles(sftpFileUtil.java:58)
    at karthickArchive.archiveMigration.getFileUtility.main(getFileUtility.java:69)
    Caused by: java.io.IOException: Pipe closed
    at java.io.PipedInputStream.read(PipedInputStream.java:308)
    at java.io.PipedInputStream.read(PipedInputStream.java:378)
    at com.jcraft.jsch.ChannelSftp.fill(ChannelSftp.java:2325)
    at com.jcraft.jsch.ChannelSftp.header(ChannelSftp.java:2351)
    at com.jcraft.jsch.ChannelSftp._put(ChannelSftp.java:474)
    ... 5 mor


    Exception in thread "main" java.lang.NoSuchFieldError: identities
    at com.jcraft.jsch.UserAuthPublicKey.start(UserAuthPublicKey.java:39)
    at com.jcraft.jsch.Session.connect(Session.java:463)
    at com.jcraft.jsch.Session.connect(Session.java:183)

    我尝试了足够多的探索,但我的问题没有得到一个明确的答案,我想我错过了一些东西。如有任何建议,我们将不胜感激。 

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 [INFO] -------------------------------------------------------------------- 
 [INFO] BUILD SUCCESS
 [INFO] -------------------------------------------------------------------- 
 [INFO] Total time: 7.989 s
 [INFO] Finished at: 2017-08-14T18:02:29+05:30
 [INFO] Final Memory: 18M/356M
 [INFO] --------------------------------------------------------------------      ----

    在删除了所有其他JSCH库之后,下面是我的maven,除了

    我仍然认为行中存在错误

    客户登录(sftpUser,keyFilePath,null); 

     Actual Log:Exception in thread "main" java.lang.NoSuchFieldError: identities
    at com.jcraft.jsch.UserAuthPublicKey.start(UserAuthPublicKey.java:39)
    at com.jcraft.jsch.Session.connect(Session.java:463)
    at com.jcraft.jsch.Session.connect(Session.java:183)
    at org.mule.transport.sftp.SftpClient.login(SftpClient.java:178)
    at karthickArchive.archiveMigration.sftpFileUtil.processFiles(sftpFileUtil.java:46)
    at karthickArchive.archiveMigration.getFileUtility.main(getFileUtility.java:69)
    2 回复  |  直到 7 年前
        1
  •  8
  •   Bahadir Tasdemir    5 年前

    第二次看你的代码(在我喝咖啡之后,它更好), java.io.IOException: Pipe closed

    你最后的障碍是 在…内 你的for循环。由于无论是否发生异常,始终调用finally块,因此在第一次迭代结束时,finally块始终会断开客户机的连接: 

    for(...){
    try{
        ...
    }catch(...){
        ...
    }finally{
        # this finally block is inside your for loop
        # finally block is always called whether an exception occur or not
        # on the first iteration, this is called and close your client
        try{
            if(client!=null){
                # nope, it will close the client for next iteration!
                client.disconnect();
            }if(fsdisPath!=null){
                # good to close this however
                fsdisPath.close();
            }
        }catch(Exceptionex){
            ex.printStackTrace();
        }
    }
}

    相反,你应该有这样的东西: 

    try {
    for(...){
        try{
            ...
        }catch(...){
            ...
        }finally{
            try{
                if(fsdisPath!=null){
                    fsdisPath.close();
                }
            }catch(Exceptionex){
                ex.printStackTrace();
            }
        }
    }
} finally {
    if(client!=null){
        client.disconnect();
    }
}

    java.lang.NoSuchFieldError: identities 是由应用程序的另一部分使用不同的JSch版本引起的,正如您根据Maven依赖树放入证据一样。

    在项目中做了一个mvn依赖项:tree-Dverbose(使用jsch 0.1.50),我发现该项目和我在原始帖子中添加了所有日志:尤其是这个:+-org.mule.transports:mule transport sftp:jar:3.4.0:compile[INFO]|+-(com.jcraft:jsch:jar:0.1.44-1:compile-省略,因为与0.1.42冲突)+-(com.jcraft:jsch:jar:0.1.42:compile-省略,因为与0.1.50冲突)[INFO]-com.jcraft:jsch:jar:0.1.50:compile[INFO]

        2
  •  0
  •   Pierre B.    7 年前

    com.jcraft.jsch.JSchException: java.io.IOException: Pipe closed

    另外,请检查ssh服务器日志,您可能会发现一些有用的信息。

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