SFTP Java - 管道关闭 Jsch 异常答案

【问题标题】：SFTP Java - Pipe closed Jsch ExceptionSFTP Java - 管道关闭 Jsch 异常
【发布时间】：2017-08-10 15:12:09
【问题描述】：

我正在研究一种将文件从一个位置复制到另一个远程位置的 java 方法。我的代码如下。我尝试使用 jsch 0.1.42 & 0.1.50 & 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();
            }
        }
    }

}

}

我使用 Jsch 0.1.42 时的错误代码是我使用 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

当我使用jsch 0.1.50时，报错如下

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)

我尝试进行了足够多的探索，但我无法为我的问题找到明确的答案，我想我错过了一些东西。任何建议将不胜感激。

我使用 jsch 0.1.50

时的 Maven 依赖关系树

 [INFO] Scanning for projects...
 [INFO]                                                                         
 [INFO] ------------------------------------------------------------------------
 [INFO] Building archiveMigration 0.0.1-SNAPSHOT
 [INFO] ------------------------------------------------------------------------
 [INFO] 
 [INFO] --- maven-dependency-plugin:2.8:tree (default-cli) @ archiveMigration ---
 [INFO] tdiArchive:archiveMigration:jar:0.0.1-SNAPSHOT
 [INFO] +- org.apache.hadoop:hadoop-hdfs:jar:2.5.0-cdh5.3.2:compile
 [INFO] |  +- com.google.guava:guava:jar:11.0.2:compile
 [INFO] |  |  \- (com.google.code.findbugs:jsr305:jar:1.3.9:compile - omitted for duplicate)
 [INFO] |  +- org.mortbay.jetty:jetty:jar:6.1.26.cloudera.4:compile
 [INFO] |  |  \- (org.mortbay.jetty:jetty-util:jar:6.1.26.cloudera.4:compile - omitted for duplicate)
 [INFO] |  +- org.mortbay.jetty:jetty-util:jar:6.1.26.cloudera.4:compile
 [INFO] |  +- com.sun.jersey:jersey-core:jar:1.9:compile
 [INFO] |  +- com.sun.jersey:jersey-server:jar:1.9:compile
 [INFO] |  |  +- asm:asm:jar:3.1:compile
 [INFO] |  |  \- (com.sun.jersey:jersey-core:jar:1.9:compile - omitted for duplicate)
 [INFO] |  +- commons-cli:commons-cli:jar:1.2:compile
 [INFO] |  +- commons-codec:commons-codec:jar:1.4:compile
 [INFO] |  +- commons-io:commons-io:jar:2.4:compile
 [INFO] |  +- commons-lang:commons-lang:jar:2.6:compile
 [INFO] |  +- commons-logging:commons-logging:jar:1.1.3:compile
 [INFO] |  +- commons-daemon:commons-daemon:jar:1.0.13:compile
 [INFO] |  +- javax.servlet.jsp:jsp-api:jar:2.1:compile
 [INFO] |  +- log4j:log4j:jar:1.2.17:compile
 [INFO] |  +- com.google.protobuf:protobuf-java:jar:2.5.0:compile
 [INFO] |  +- javax.servlet:servlet-api:jar:2.5:compile
 [INFO] |  +- org.codehaus.jackson:jackson-core-asl:jar:1.8.8:compile
 [INFO] |  +- org.codehaus.jackson:jackson-mapper-asl:jar:1.8.8:compile
 [INFO] |  |  \- (org.codehaus.jackson:jackson-core-asl:jar:1.8.8:compile - omitted for duplicate)
 [INFO] |  +- tomcat:jasper-runtime:jar:5.5.23:compile
 [INFO] |  |  +- (javax.servlet:servlet-api:jar:2.4:compile - omitted for conflict with 2.5)
 [INFO] |  |  \- commons-el:commons-el:jar:1.0:compile
 [INFO] |  |     \- (commons-logging:commons-logging:jar:1.0.3:compile - omitted for conflict with 1.1.3)
 [INFO] |  +- xmlenc:xmlenc:jar:0.52:compile
 [INFO] |  \- io.netty:netty:jar:3.6.2.Final:compile
 [INFO] +- org.apache.hadoop:hadoop-common:jar:2.5.0-cdh5.3.2:compile
 [INFO] |  +- org.apache.hadoop:hadoop-annotations:jar:2.5.0-cdh5.3.2:compile
 [INFO] |  |  \- jdk.tools:jdk.tools:jar:1.6:system
 [INFO] |  +- (com.google.guava:guava:jar:11.0.2:compile - omitted for duplicate)
 [INFO] |  +- (commons-cli:commons-cli:jar:1.2:compile - omitted for duplicate)
 [INFO] |  +- org.apache.commons:commons-math3:jar:3.1.1:compile
 [INFO] |  +- (xmlenc:xmlenc:jar:0.52:compile - omitted for duplicate)
 [INFO] |  +- commons-httpclient:commons-httpclient:jar:3.1:compile
 [INFO] |  |  +- (commons-logging:commons-logging:jar:1.0.4:compile - omitted for conflict with 1.1.3)
 [INFO] |  |  \- (commons-codec:commons-codec:jar:1.2:compile - omitted for conflict with 1.4)
 [INFO] |  +- (commons-codec:commons-codec:jar:1.4:compile - omitted for duplicate)
 [INFO] |  +- (commons-io:commons-io:jar:2.4:compile - omitted for duplicate)
 [INFO] |  +- commons-net:commons-net:jar:3.1:compile
 [INFO] |  +- commons-collections:commons-collections:jar:3.2.1:compile
 [INFO] |  +- (javax.servlet:servlet-api:jar:2.5:compile - omitted for duplicate)
 [INFO] |  +- (org.mortbay.jetty:jetty:jar:6.1.26.cloudera.4:compile - omitted for duplicate)
 [INFO] |  +- (org.mortbay.jetty:jetty-util:jar:6.1.26.cloudera.4:compile - omitted for duplicate)
 [INFO] |  +- (com.sun.jersey:jersey-core:jar:1.9:compile - omitted for duplicate)
 [INFO] |  +- com.sun.jersey:jersey-json:jar:1.9:compile
 [INFO] |  |  +- org.codehaus.jettison:jettison:jar:1.1:compile
 [INFO] |  |  +- com.sun.xml.bind:jaxb-impl:jar:2.2.3-1:compile
 [INFO] |  |  |  \- javax.xml.bind:jaxb-api:jar:2.2.2:compile
 [INFO] |  |  |     +- javax.xml.stream:stax-api:jar:1.0-2:compile
 [INFO] |  |  |     \- (javax.activation:activation:jar:1.1:compile - omitted for conflict with 1.1-osgi)
 [INFO] |  |  +- (org.codehaus.jackson:jackson-core-asl:jar:1.8.3:compile - omitted for conflict with 1.8.8)
 [INFO] |  |  +- (org.codehaus.jackson:jackson-mapper-asl:jar:1.8.3:compile - omitted for conflict with 1.8.8)
 [INFO] |  |  +- org.codehaus.jackson:jackson-jaxrs:jar:1.8.3:compile
 [INFO] |  |  |  +- (org.codehaus.jackson:jackson-core-asl:jar:1.8.3:compile - omitted for conflict with 1.8.8)
 [INFO] |  |  |  \- (org.codehaus.jackson:jackson-mapper-asl:jar:1.8.3:compile - omitted for conflict with 1.8.8)
 [INFO] |  |  +- org.codehaus.jackson:jackson-xc:jar:1.8.3:compile
 [INFO] |  |  |  +- (org.codehaus.jackson:jackson-core-asl:jar:1.8.3:compile - omitted for conflict with 1.8.8)
 [INFO] |  |  |  \- (org.codehaus.jackson:jackson-mapper-asl:jar:1.8.3:compile - omitted for conflict with 1.8.8)
 [INFO] |  |  \- (com.sun.jersey:jersey-core:jar:1.9:compile - omitted for duplicate)
 [INFO] |  +- (com.sun.jersey:jersey-server:jar:1.9:compile - omitted for duplicate)
 [INFO] |  +- tomcat:jasper-compiler:jar:5.5.23:runtime
 [INFO] |  +- (tomcat:jasper-runtime:jar:5.5.23:runtime - omitted for duplicate)
 [INFO] |  +- (javax.servlet.jsp:jsp-api:jar:2.1:runtime - omitted for duplicate)
 [INFO] |  +- (commons-el:commons-el:jar:1.0:compile - scope updated from runtime; omitted for duplicate)
 [INFO] |  +- (commons-logging:commons-logging:jar:1.1.3:compile - omitted for duplicate)
 [INFO] |  +- (log4j:log4j:jar:1.2.17:compile - omitted for duplicate)
 [INFO] |  +- net.java.dev.jets3t:jets3t:jar:0.9.0:compile
 [INFO] |  |  +- (commons-codec:commons-codec:jar:1.4:compile - omitted for duplicate)
 [INFO] |  |  +- (commons-logging:commons-logging:jar:1.1.1:compile - omitted for conflict with 1.1.3)
 [INFO] |  |  +- org.apache.httpcomponents:httpclient:jar:4.1.2:compile
 [INFO] |  |  |  \- (org.apache.httpcomponents:httpcore:jar:4.1.2:compile - omitted for duplicate)
 [INFO] |  |  +- org.apache.httpcomponents:httpcore:jar:4.1.2:compile
 [INFO] |  |  \- com.jamesmurty.utils:java-xmlbuilder:jar:0.4:compile
 [INFO] |  +- (commons-lang:commons-lang:jar:2.6:compile - omitted for duplicate)
 [INFO] |  +- commons-configuration:commons-configuration:jar:1.6:compile
 [INFO] |  |  +- (commons-collections:commons-collections:jar:3.2.1:compile - omitted for duplicate)
 [INFO] |  |  +- (commons-lang:commons-lang:jar:2.4:compile - omitted for conflict with 2.6)
 [INFO] |  |  +- (commons-logging:commons-logging:jar:1.1.1:compile - omitted for conflict with 1.1.3)
 [INFO] |  |  +- commons-digester:commons-digester:jar:1.8:compile
 [INFO] |  |  |  +- (commons-beanutils:commons-beanutils:jar:1.7.0:compile - omitted for conflict with 1.8.0)
 [INFO] |  |  |  \- (commons-logging:commons-logging:jar:1.1:compile - omitted for conflict with 1.1.3)
 [INFO] |  |  \- commons-beanutils:commons-beanutils-core:jar:1.8.0:compile
 [INFO] |  |     \- (commons-logging:commons-logging:jar:1.1.1:compile - omitted for conflict with 1.1.3)
 [INFO] |  +- org.slf4j:slf4j-api:jar:1.7.5:compile
 [INFO] |  +- (org.slf4j:slf4j-log4j12:jar:1.7.5:compile - scope updated from runtime; omitted for duplicate)
 [INFO] |  +- (org.codehaus.jackson:jackson-core-asl:jar:1.8.8:compile - omitted for duplicate)
 [INFO] |  +- (org.codehaus.jackson:jackson-mapper-asl:jar:1.8.8:compile - omitted for duplicate)
 [INFO] |  +- org.apache.avro:avro:jar:1.7.6-cdh5.3.2:compile
 [INFO] |  |  +- (org.codehaus.jackson:jackson-core-asl:jar:1.9.13:compile - omitted for conflict with 1.8.8)
 [INFO] |  |  +- (org.codehaus.jackson:jackson-mapper-asl:jar:1.9.13:compile - omitted for conflict with 1.8.8)
 [INFO] |  |  +- com.thoughtworks.paranamer:paranamer:jar:2.3:compile
 [INFO] |  |  +- org.xerial.snappy:snappy-java:jar:1.0.5:compile
 [INFO] |  |  +- (org.apache.commons:commons-compress:jar:1.4.1:compile - omitted for duplicate)
 [INFO] |  |  \- (org.slf4j:slf4j-api:jar:1.6.4:compile - omitted for conflict with 1.7.5)
 [INFO] |  +- (com.google.protobuf:protobuf-java:jar:2.5.0:compile - omitted for duplicate)
 [INFO] |  +- com.google.code.gson:gson:jar:2.2.4:compile
 [INFO] |  +- org.apache.hadoop:hadoop-auth:jar:2.5.0-cdh5.3.2:compile
 [INFO] |  |  +- (org.slf4j:slf4j-api:jar:1.7.5:compile - omitted for duplicate)
 [INFO] |  |  +- (commons-codec:commons-codec:jar:1.4:compile - omitted for duplicate)
 [INFO] |  |  +- (log4j:log4j:jar:1.2.17:runtime - omitted for duplicate)
 [INFO] |  |  +- (org.slf4j:slf4j-log4j12:jar:1.7.5:runtime - omitted for duplicate)
 [INFO] |  |  +- (org.apache.httpcomponents:httpclient:jar:4.2.5:compile - omitted for conflict with 4.1.2)
 [INFO] |  |  +- org.apache.directory.server:apacheds-kerberos-codec:jar:2.0.0-M15:compile
 [INFO] |  |  |  +- org.apache.directory.server:apacheds-i18n:jar:2.0.0-M15:compile
 [INFO] |  |  |  |  \- (org.slf4j:slf4j-api:jar:1.7.5:compile - omitted for duplicate)
 [INFO] |  |  |  +- org.apache.directory.api:api-asn1-api:jar:1.0.0-M20:compile
 [INFO] |  |  |  |  \- (org.slf4j:slf4j-api:jar:1.7.5:compile - omitted for duplicate)
 [INFO] |  |  |  +- org.apache.directory.api:api-util:jar:1.0.0-M20:compile
 [INFO] |  |  |  |  \- (org.slf4j:slf4j-api:jar:1.7.5:compile - omitted for duplicate)
 [INFO] |  |  |  \- (org.slf4j:slf4j-api:jar:1.7.5:compile - omitted for duplicate)
 [INFO] |  |  +- (org.apache.zookeeper:zookeeper:jar:3.4.5-cdh5.3.2:compile - omitted for duplicate)
 [INFO] |  |  \- org.apache.curator:curator-framework:jar:2.6.0:compile
 [INFO] |  |     +- (org.apache.curator:curator-client:jar:2.6.0:compile - omitted for duplicate)
 [INFO] |  |     +- (org.apache.zookeeper:zookeeper:jar:3.4.6:compile - omitted for conflict with 3.4.5-cdh5.3.2)
 [INFO] |  |     \- (com.google.guava:guava:jar:16.0.1:compile - omitted for conflict with 11.0.2)
 [INFO] |  +- (com.jcraft:jsch:jar:0.1.42:compile - omitted for conflict with 0.1.50)
 [INFO] |  +- org.apache.curator:curator-client:jar:2.6.0:compile
 [INFO] |  |  +- (org.slf4j:slf4j-api:jar:1.7.6:compile - omitted for conflict with 1.7.5)
 [INFO] |  |  +- (org.apache.zookeeper:zookeeper:jar:3.4.6:compile - omitted for conflict with 3.4.5-cdh5.3.2)
 [INFO] |  |  \- (com.google.guava:guava:jar:16.0.1:compile - omitted for conflict with 11.0.2)
 [INFO] |  +- org.apache.curator:curator-recipes:jar:2.6.0:compile
 [INFO] |  |  +- (org.apache.curator:curator-framework:jar:2.6.0:compile - omitted for duplicate)
 [INFO] |  |  +- (org.apache.zookeeper:zookeeper:jar:3.4.6:compile - omitted for conflict with 3.4.5-cdh5.3.2)
 [INFO] |  |  \- (com.google.guava:guava:jar:16.0.1:compile - omitted for conflict with 11.0.2)
 [INFO] |  +- com.google.code.findbugs:jsr305:jar:1.3.9:compile
 [INFO] |  +- org.apache.zookeeper:zookeeper:jar:3.4.5-cdh5.3.2:compile
 [INFO] |  |  +- (org.slf4j:slf4j-api:jar:1.7.5:compile - omitted for duplicate)
 [INFO] |  |  +- org.slf4j:slf4j-log4j12:jar:1.7.5:compile
 [INFO] |  |  |  +- (org.slf4j:slf4j-api:jar:1.7.5:compile - omitted for duplicate)
 [INFO] |  |  |  \- (log4j:log4j:jar:1.2.17:compile - omitted for duplicate)
 [INFO] |  |  \- (log4j:log4j:jar:1.2.17:compile - omitted for duplicate)
 [INFO] |  \- org.apache.commons:commons-compress:jar:1.4.1:compile
 [INFO] |     \- org.tukaani:xz:jar:1.0:compile
 [INFO] +- org.mule.transports:mule-transport-sftp:jar:3.4.0:compile
 [INFO] |  +- (com.jcraft:jsch:jar:0.1.44-1:compile - omitted for conflict with 0.1.42)
 [INFO] |  +- org.mule:mule-core:jar:3.4.0:compile
 [INFO] |  |  +- commons-beanutils:commons-beanutils:jar:1.8.0:compile
 [INFO] |  |  +- org.safehaus.jug:jug:jar:asl:2.0.0:compile
 [INFO] |  |  +- (commons-cli:commons-cli:jar:1.2:compile - omitted for duplicate)
 [INFO] |  |  +- (commons-collections:commons-collections:jar:3.2.1:compile - omitted for duplicate)
 [INFO] |  |  +- (commons-io:commons-io:jar:1.4:compile - omitted for conflict with 2.4)
 [INFO] |  |  +- (commons-lang:commons-lang:jar:2.4:compile - omitted for conflict with 2.6)
 [INFO] |  |  +- commons-pool:commons-pool:jar:1.5.3:compile
 [INFO] |  |  +- javax.activation:activation:jar:1.1-osgi:compile
 [INFO] |  |  +- org.apache.geronimo.specs:geronimo-jta_1.1_spec:jar:1.1.1:compile
 [INFO] |  |  +- org.apache.geronimo.specs:geronimo-j2ee-connector_1.5_spec:jar:1.1-osgi:compile
 [INFO] |  |  +- javax.annotation:jsr250-api:jar:1.0:compile
 [INFO] |  |  +- org.slf4j:jcl-over-slf4j:jar:1.6.1:compile
 [INFO] |  |  |  \- (org.slf4j:slf4j-api:jar:1.6.1:compile - omitted for conflict with 1.7.5)
 [INFO] |  |  +- (org.slf4j:slf4j-api:jar:1.6.1:compile - omitted for conflict with 1.7.5)
 [INFO] |  |  +- (org.slf4j:slf4j-log4j12:jar:1.6.1:compile - omitted for conflict with 1.7.5)
 [INFO] |  |  +- (log4j:log4j:jar:1.2.16:compile - omitted for conflict with 1.2.17)
 [INFO] |  |  +- (asm:asm:jar:3.1:compile - omitted for duplicate)
 [INFO] |  |  +- asm:asm-commons:jar:3.1:compile
 [INFO] |  |  |  \- asm:asm-tree:jar:3.1:compile
 [INFO] |  |  |     \- (asm:asm:jar:3.1:compile - omitted for duplicate)
 [INFO] |  |  +- org.mvel:mvel2:jar:2.1.3.Final:compile
 [INFO] |  |  +- org.jgrapht:jgrapht-jdk1.5:jar:0.7.3:compile
 [INFO] |  |  \- org.mule.common:mule-common:jar:0.11.0:compile
 [INFO] |  \- (org.mule.transports:mule-transport-file:jar:3.4.0:compile - omitted for duplicate)
 [INFO] +- org.mule.transports:mule-transport-file:jar:3.4.0:compile
 [INFO] |  \- org.mule.modules:mule-module-spring-config:jar:3.4.0:compile
 [INFO] |     +- (org.mule:mule-core:jar:3.4.0:compile - omitted for duplicate)
 [INFO] |     +- org.mule.modules:mule-module-annotations:jar:3.4.0:compile
 [INFO] |     |  +- (org.mule:mule-core:jar:3.4.0:compile - omitted for duplicate)
 [INFO] |     |  \- cglib:cglib-nodep:jar:2.2:compile
 [INFO] |     +- org.springframework:spring-context:jar:3.2.1.RELEASE:compile
 [INFO] |     |  +- org.springframework:spring-beans:jar:3.2.1.RELEASE:compile
 [INFO] |     |  |  \- (org.springframework:spring-core:jar:3.2.1.RELEASE:compile - omitted for duplicate)
 [INFO] |     |  +- org.springframework:spring-aop:jar:3.2.1.RELEASE:compile
 [INFO] |     |  |  +- (org.springframework:spring-beans:jar:3.2.1.RELEASE:compile - omitted for duplicate)
 [INFO] |     |  |  \- (org.springframework:spring-core:jar:3.2.1.RELEASE:compile - omitted for duplicate)
 [INFO] |     |  +- org.springframework:spring-expression:jar:3.2.1.RELEASE:compile
 [INFO] |     |  |  \- (org.springframework:spring-core:jar:3.2.1.RELEASE:compile - omitted for duplicate)
 [INFO] |     |  \- org.springframework:spring-core:jar:3.2.1.RELEASE:compile
 [INFO] |     +- dom4j:dom4j:jar:1.6.1-osgi:compile
 [INFO] |     \- jaxen:jaxen:jar:1.1.1:compile
 [INFO] |        +- (jaxen:jaxen:jar:1.1-beta-6:compile - omitted for cycle)
 [INFO] |        +- (dom4j:dom4j:jar:1.6.1:compile - omitted for conflict with 1.6.1-osgi)
 [INFO] |        +- (jaxen:jaxen:jar:1.0-FCS:compile - omitted for cycle)
 [INFO] |        \- jdom:jdom:jar:1.0:compile
 [INFO] \- com.jcraft:jsch:jar:0.1.50:compile
 [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] --------------------------------------------------------------------      ----

删除所有其他 JSCH 库后，以下是我的 maven，除了 0.1.50

之外，我没有看到任何其他 JSCH 库

我的错误还在那一行

client.login(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)

【问题讨论】：

NoSuchFieldError 使用 JSch 0.1.50 时可能是由于您的应用程序的另一部分仍在使用另一个 JSch 版本。你确定你重新编译了你的整个代码吗？ IE。 Normally, this error is caught by the compiler; this error can only occur at run time if the definition of a class has incompatibly changed. 使用 JSch 0.1.42，究竟是哪一行引发了异常？（显示整个堆栈跟踪可能会有所帮助）
@PierreB 感谢您的评论。当我使用 jsch 01.42 时，我已经编辑了完整的堆栈 strace，并且我看到 client.storeFile(inputPath.getName(), bis); 行中发生了错误。 .非常感谢您的建议。
@PierreB。我在项目中做了一个 mvn 依赖项：tree -Dverbose（使用 jsch 0.1.50），我发现该项目和我已经在原始帖子中添加了所有日志：特别是这个：+- org.mule.transports:mule-传输-sftp:jar:3.4.0:编译 [信息] | +- (com.jcraft:jsch:jar:0.1.44-1:compile - 与 0.1.42 冲突省略) +- (com.jcraft:jsch:jar:0.1.42:compile - 与 0.1 冲突省略。 50) [INFO] \- com.jcraft:jsch:jar:0.1.50:compile [INFO] --------------------------- --------------------------------------------- [信息] 构建成功
好的，谢谢你的详细信息。与您的问题没有直接关系，您为什么使用 Mule SFTP 客户端？据我所知，这个客户端应该用作 Mule 应用程序的一部分，而不是打算在独立的 Java 应用程序中使用。（编辑：这样说是因为您可能会遇到因在上下文之外运行这些代码的副作用而导致的其他问题。查看源 Mule SftpClient 源代码，它取决于 Mule Core 元素，这些元素可能无法与您的代码很好地配合)
我想将文件从 HDFS 文件系统复制到其他机器的东西。这需要 Hadoop 文件系统 conf 设置和流式传输来自 HDFS 的文件以将其复制到本地。我尝试了 jsch 通道，但它直接连接到 sftp 并执行了不连接到 HDFS 系统的放置操作。这就是这里的全部原因。 mule sftp 是最好的解决方案。

标签： java authentication mule sftp jsch

【解决方案1】：

再次查看您的代码（在我喝完咖啡之后，感觉更好），java.io.IOException: Pipe closed 与 JSch 0.1.42 实际上是由您建议的逻辑问题引起的：

你的 finally 块是 inside 你的 for 循环。因为无论是否发生异常，都会调用 finally 块，因此您的客户端总是在第一次迭代结束时被 finally 块断开：

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，你应该有类似的东西：

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

将 for 循环作为代码可见性的函数也是一个好主意；）

java.lang.NoSuchFieldError: identities 是由您的应用程序的另一部分使用不同的 JSch 版本引起的，因为您根据 Maven 依赖树证明了这一点。

在项目中做了一个 mvn 依赖项：tree -Dverbose（使用 jsch 0.1.50），我发现项目和我已经在原始帖子中添加了所有日志：特别是这个：+- org.mule.transports： mule-transport-sftp:jar:3.4.0:compile [INFO] | +- (com.jcraft:jsch:jar:0.1.44-1:compile - 与 0.1.42 冲突省略) +- (com.jcraft:jsch:jar:0.1.42:compile - 与 0.1 冲突省略。 50) [INFO] - com.jcraft:jsch:jar:0.1.50:compile [INFO]

【讨论】：

【解决方案2】：

看起来像是服务器问题。您确定与您连接的用户具有写入权限吗？您的 SFTP 服务器是否可以通过其他方式访问？看看这个帖子：com.jcraft.jsch.JSchException: java.io.IOException: Pipe closed

同时检查您的 ssh 服务器日志，您可能会在其中找到一些有用的信息。

【讨论】：

当我使用 jsch 0.1.42 传递小文件列表时..在服务器端没有问题。第一个文件被传输到另一台机器。问题从第二个文件开始。这是否意味着在处理之前突然关闭连接的代码中有任何逻辑问题？
你是对的，再看看你的代码，这似乎是一个逻辑问题。我发布了一个适当的答案。