FTPClient ftp 下载文件时程序抛出异常----急
程序运行时报如下错误,请高手们分析一下:login state is:230
ftp login successfully!
Program changeWorkingDirectory successfully!
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/oro/text/regex/MalformedPatternException
at org.apache.commons.net.ftp.parser.DefaultFTPFileEntryParserFactory.createUnixFTPEntryParser(DefaultFTPFileEntryParserFactory.java:169)
at org.apache.commons.net.ftp.parser.DefaultFTPFileEntryParserFactory.createFileEntryParser(DefaultFTPFileEntryParserFactory.java:94)
at org.apache.commons.net.ftp.FTPClient.initiateListParsing(FTPClient.java:2358)
at org.apache.commons.net.ftp.FTPClient.listFiles(FTPClient.java:2141)
at org.apache.commons.net.ftp.FTPClient.listFiles(FTPClient.java:2188)
at www.metarnet.com.getFile.main(getFile.java:55)
Caused by: java.lang.ClassNotFoundException: org.apache.oro.text.regex.MalformedPatternException
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
... 6 more
相应的代码是:
ftp.changeWorkingDirectory(path);
System.out.println("Program changeWorkingDirectory successfully!");
FTPFile[] fs =ftp.listFiles();
//遍历目录下的所有文件
for(FTPFile obj:fs){
if(obj.getName().equals(filename)){
File localFile =new File(System.getProperty("user.dir" + File.separator + obj.getName()));
OutputStream os =new FileOutputStream(localFile);
//下载文件
ftp.retrieveFile(obj.getName(),os);
os.close();
}
} org/apache/oro/text/regex/MalformedPatternException 这个类没找到,你看一下你的环境吧 org/apache/oro/text/regex/MalformedPatternException 这个类没找到,你看一下你的环境吧
surpass_li 发表于 2010-07-22 14:57 http://bbs.chinaunix.net/images/common/back.gif
多谢,发现少包含了一个JAR 包。问题已解决! 多谢,发现少包含了一个JAR 包。问题已解决!
HF.SKY000 发表于 2010-07-22 15:50 http://bbs.chinaunix.net/images/common/back.gif
不客气,大家一起学习:)
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