SFTP Java-管道关闭Jsch异常 [英] SFTP Java - Pipe closed Jsch Exception
本文介绍了SFTP Java-管道关闭Jsch异常的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我正在开发一种将文件从一个位置复制到另一个远程位置的Java方法。我的代码如下所示。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();
}
}
}
}
}
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，错误如下
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，我想我遗漏了一些东西。任何建议都将不胜感激。
使用jsch 0.1.50时维护依赖关系树
[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
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[INFO] | +- log4j:log4j:jar:1.2.17:compile
[INFO] | +- com.google.protobuf:protobuf-java:jar:2.5.0:compile
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[INFO] | +- org.codehaus.jackson:jackson-core-asl:jar:1.8.8:compile
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[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
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[INFO] | | - jdk.tools:jdk.tools:jar:1.6:system
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[INFO] | +- tomcat:jasper-compiler:jar:5.5.23:runtime
[INFO] | +- (tomcat:jasper-runtime:jar:5.5.23:runtime - omitted for duplicate)
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[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
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[INFO] | +- (org.codehaus.jackson:jackson-core-asl:jar:1.8.8:compile - omitted for duplicate)
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[INFO] | +- org.apache.avro:avro:jar:1.7.6-cdh5.3.2:compile
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[INFO] | | - org.apache.curator:curator-framework:jar:2.6.0:compile
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[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
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[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
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[INFO] | - org.apache.commons:commons-compress:jar:1.4.1:compile
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[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
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[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
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[INFO] | | +- (org.slf4j:slf4j-log4j12:jar:1.6.1:compile - omitted for conflict with 1.7.5)
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[INFO] | | +- (asm:asm:jar:3.1:compile - omitted for duplicate)
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[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库之后，下面是我的maven，除了0.1.50
之外，我没有看到任何其他JSCH库我仍然在行中出现错误
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)
推荐答案
再次查看您的代码(就在我喝完咖啡之后，这样更好)，java.io.IOException: Pipe closed使用JSCH 0.1.42实际上是由您建议的逻辑问题引起的：
您的最终挡路在您的for循环中。作为最后一个挡路，无论是否发生异常，您的客户端总是在第一次迭代结束时被最后一个挡路断开连接：
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，您应该拥有如下内容：
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可能是个好主意；)
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，因为您根据Maven依赖关系树进行了验证。
在项目(使用jsch 0.1.50)中执行了mvn依赖：tree-dVerose，我发现项目和我已经添加了原始帖子中的所有日志：特别是这个：+-org.mule.transports:mule-transport-sftp:jar:3.4.0:compile[信息]|+-(com.jcraft：jsch：jar：0.1.44-1：COMPILE-由于与0.1.42冲突而省略)+-(com.jcraft：JSCH：JAR：0.1.42：COMPILE-因与0.1.50冲突而省略)[信息]-com.jcraft：jsch：jar：0.1.50：编译[信息]
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