ftp实现上传

采用 apache的 commons-net包

java 代码

import java.io.FileInputStream;
import java.io.IOException;

import org.apache.commons.net.ftp.FTP;
import org.apache.commons.net.ftp.FTPClient;
import org.apache.commons.net.ftp.FTPReply;
import org.apache.log4j.Logger;

public class FtpUtil {
    private Logger log = Logger.getLogger(this.getClass());
    private String ftpServer;
    private String userName;
    private String pswd;

    public void setFtpServer(String ftpServer) {
        this.ftpServer = ftpServer;
    }

    public void setPswd(String pswd) {
        this.pswd = pswd;
    }

    public void setUserName(String userName) {
        this.userName = userName;
    }

    /**
     * 连接Ftp服务器
     * @return
     * @throws SmpBizException
     */
    public  FTPClient loginToFtpServer() throws Exception {

        FTPClient ftp = new FTPClient();
        try {
            ftp.connect(this.ftpServer);
            int reply = ftp.getReplyCode();
            if(!FTPReply.isPositiveCompletion(reply)){
                log.error("Ftp connect to "+this.ftpServer +" failed!");
                throw new Exception("Ftplogin to connect to "+this.ftpServer +" failed!");
            }
            ftp.login(this.userName,this.pswd);
            log.debug("Ftp connect to "+this.ftpServer +" success!");

        } catch (Exception e) {
            log.error("Ftp connect "+this.ftpServer +" failed!!");
            throw new Exception("FtpLogin to "+this.ftpServer +" failed!!");
        }
        return ftp;
    }

    /**
     * Ftp文件到服务器
     * @param remotPath
     * @param localFile
     * @param remoteFileName
     * @throws SmpBizException
     */
    public void upload(String remotPath,String localFile,String remoteFileName) throws Exception{
        FTPClient ftp = this.loginToFtpServer();
        FileInputStream in = null;
        try {
            log.debug("--- ftp begin! ---");
            ftp.setFileType(FTP.BINARY_FILE_TYPE);
            ftp.enterLocalPassiveMode();
            if(null!=remotPath&&(!ftp.changeWorkingDirectory(remotPath))){
                ftp.makeDirectory( remotPath );
                ftp.changeWorkingDirectory( remotPath );
            }

            in = new FileInputStream(localFile);
            ftp.storeFile(remoteFileName, in);
            log.debug("--- ftp finish! ---");
        } catch (IOException e) {
            log.error("ftp file："+ localFile +" fail！！！");
            throw new Exception("ftp file："+ localFile +" fail！！！");
        }finally{
            try {
                ftp.disconnect();
                if(null!=in){
                    in.close();
                }
            } catch (IOException e) {
                this.log.error("close connect failed!");
                e.printStackTrace();
            }
        }
    }

    /**
    * 远程文件路径编码(上传到ftp上的文件路径)
    *
    * @param remoteFilePath
    * @return
    */
    protected String enCodingRemoteFilePath(String remoteFilePath) {
          return null;
    }

}

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杂项 | 下载服务的Servlet

• 2007-11-07 17:23
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