android 下的ftp注意问题
以下代码在pc上测试通过，可是在android模拟器上就不工作，不过还可以链接到服务器但不能得到文件 纠结了半天，原来是模式的问题，具体请Google 模拟器中采用建议被动模式public void doWork(){
FTPClient ftp = new FTPClient();
try {
ftp.connect(server);
System.out.println("Connected to " + server);
System.out.print(ftp.getReplyString());
reply = ftp.getReplyCode();
if(!FTPReply.isPositiveCompletion(reply)) {
ftp.disconnect();
System.err.println("FTP server refused connection.");
System.exit(1);
}
ftp.login(username, password);
FTPFile[] files = ftp.listFiles("/");
if(files!=null&&files.length>0){
for(FTPFile f:files){
System.out.println("user:>>>"+f.getUser()+" name:>>>"+f.getName()+" size:>>>"+f.getSize()+" link:>>>"+f.getLink());
}
}
} catch (SocketException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
加上被动模式之后，代码如下：
public void doWork(){
FTPClient ftp = new FTPClient();
try {
ftp.connect(server);
System.out.println("Connected to " + server);
System.out.print(ftp.getReplyString());
reply = ftp.getReplyCode();
if(!FTPReply.isPositiveCompletion(reply)) {
ftp.disconnect();
System.err.println("FTP server refused connection.");
System.exit(1);
}
ftp.login(username, password);
//设置为被动模式
ftp.enterLocalPassiveMode();
FTPFile[] files = ftp.listFiles("/");
if(files!=null&&files.length>0){
for(FTPFile f:files){
System.out.println("user:>>>"+f.getUser()+" name:>>>"+f.getName()+" size:>>>"+f.getSize()+" link:>>>"+f.getLink());
}
}
} catch (SocketException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
终于工作了...
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