v1

src/main/java/com/hikcreate/ftp/proxy/utils/FtpUtil.java

+package com.hikcreate.ftp.proxy.utils;
+
+import org.apache.commons.net.ftp.FTP;
+import org.apache.commons.net.ftp.FTPClient;
+import org.apache.commons.net.ftp.FTPClientConfig;
+import org.apache.commons.net.ftp.FTPReply;
+import org.apache.log4j.Logger;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+
+/**
+ * FTP工具类，用于获取ftp连接，上传文件，删除文件等对ftp的操作
+ * @author hulei
+ */
+public class FtpUtil {
+
+    private static Logger logger = Logger.getLogger(FtpUtil.class);
+
+    /**
+     * ftp 根目录
+     */
+    private static final String ROOTPATH = "/";
+    /**
+     * ftp 字符集
+     */
+    private static final String FTP_ENCODE = "UTF-8";
+    /**
+     * ftp 连接默认超时时间
+     */
+    private static final int DEFAULT_TIMEOUT = 30*1000;
+    /**
+     * FTP客户端
+     */
+    FTPClient ftpClient = null;
+    /**
+     * 获取ftpUtil实例
+     * @param ftpIp ftp Ip
+     * @param port ftp 端口
+     * @param userName ftp用户名
+     * @param passWord ftp 用户密码
+     * @return FTPClient
+     * @throws IOException
+     */
+    public FtpUtil(String ftpIp, int port, String userName, String passWord) {
+        try {
+            ftpClient = new FTPClient();
+            ftpClient.connect(ftpIp);
+            ftpClient.setDefaultPort(port);
+            ftpClient.setDataTimeout(DEFAULT_TIMEOUT);
+            ftpClient.setControlEncoding(FTP_ENCODE);
+            boolean isConnect = ftpClient.login(userName,passWord);
+            if(!isConnect) {
+                logger.error("Connection the FtpServer Is Failed!");
+                ftpClient.disconnect();
+            }
+        } catch (IOException e) {
+            logger.error("Connection the FtpServer Is Failed! " + e.toString());
+        }
+    }
+
+    /**
+     * ftp文件上传
+     * @param ins 文件输入流
+     * @param uploadPath 上传路径
+     * @param fileName 文件名
+     * @return boolean true/false
+     */
+    public boolean uploadFile(InputStream ins, String uploadPath, String fileName) {
+        boolean flag = false;
+
+        if(ftpClient != null) {
+            try {
+                //设置上传文件类型，默认为文本，图片需要设置成二进制，否则图片失真
+                ftpClient.setFileType(FTPClient.BINARY_FILE_TYPE);
+
+                //切换到上传目录
+                boolean change = ftpClient.changeWorkingDirectory(uploadPath);
+
+                if(change) {
+                    flag = ftpClient.storeFile(new String(fileName.getBytes("GBK"),"iso-8859-1"), ins);
+                } else {
+                    ftpClient.makeDirectory(uploadPath);
+                    ftpClient.changeWorkingDirectory(uploadPath);
+                    flag = ftpClient.storeFile(fileName, ins);
+                }
+
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+        }
+        return flag;
+    }
+
+    /**
+     * 切换回上级菜单
+     */
+    public void changeToParentDirectory() {
+        try {
+            ftpClient.changeToParentDirectory();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    /**
+     * 关闭ftp连接
+     */
+    public void closeFtp() {
+        try {
+            ftpClient.logout();
+        } catch (IOException e) {
+            e.printStackTrace();
+        } finally {
+            if(ftpClient.isConnected()) {
+                try {
+                    ftpClient.disconnect();
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
+    }
+
+    /**
+     * 下载文件
+     * @param remotePath
+     * @param fileName
+     * @param os
+     * @return
+     */
+    public boolean downloadPicFile(String remotePath,String fileName,OutputStream os) {
+        boolean flag = false;
+
+        try {
+            ftpClient.setFileType(FTPClient.BINARY_FILE_TYPE);
+            ftpClient.enterLocalPassiveMode();
+            flag = ftpClient.changeWorkingDirectory(new String(remotePath.getBytes(),"ISO-8859-1"));
+            if (flag) {
+                ftpClient.retrieveFile(fileName, os);
+                os.flush();
+                os.close();
+                flag = true;
+            } else {
+                flag = false;
+            }
+            ftpClient.logout();
+        } catch (IOException e) {
+            e.printStackTrace();
+        } finally {
+            if (ftpClient.isConnected()) {
+                try {
+                    ftpClient.disconnect();
+                } catch (IOException ioe) {
+
+                }
+            }
+        }
+
+        return flag;
+    }
+
+}