java实现 ftps上传文件

 

java ftp+ssl上传文件

参考文章：

ftps 上传：https://blog.csdn.net/Luo_jin_yuan/article/details/83052007#java_4

乱码处理：https://blog.csdn.net/u010166206/article/details/47000729/

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.security.NoSuchAlgorithmException;
import java.util.ArrayList;
import java.util.List;

import org.apache.commons.net.ftp.FTP;
import org.apache.commons.net.ftp.FTPReply;
import org.apache.commons.net.ftp.FTPSClient;

public class FtpsUtil {
	
	/** 本地字符编码 */
	private static String LOCAL_CHARSET = "GBK";
	
	// FTP协议里面，规定文件名编码为iso-8859-1
	private static String SERVER_CHARSET = "ISO-8859-1";

	public static void putFile(String host, int port, String username, String password, List file,
			List remoteFilename) throws NoSuchAlgorithmException {
		try {
			System.out.println("-------------------------------");
			FTPSClient ftpClient = new FTPSClient();
			// Connect to host
			ftpClient.connect(host, port);
			int reply = ftpClient.getReplyCode();
			if (FTPReply.isPositiveCompletion(reply)) {

				// Login
				if (ftpClient.login(username, password)) {
					if (FTPReply.isPositiveCompletion(ftpClient.sendCommand(
						"OPTS UTF8", "ON"))) {// 开启服务器对UTF-8的支持，如果服务器支持就用UTF-8编码，否则就使用本地编码（GBK）.
						LOCAL_CHARSET = "UTF-8";
					}
					
					ftpClient.setFileType(FTP.BINARY_FILE_TYPE);
					
					ftpClient.setControlEncoding(LOCAL_CHARSET);
					// Set protection buffer size
					ftpClient.execPBSZ(0);
					// Set data channel protection to private
					ftpClient.execPROT("P");
					// Enter local passive mode
					ftpClient.enterLocalPassiveMode();

					// Store file on host
					for (int i = 0; i < file.size(); i++) {
						String fileName = remoteFilename.get(i);
						// 上传文件名编码转换
						fileName = new String(remoteFilename.get(i).getBytes(LOCAL_CHARSET),SERVER_CHARSET);
						InputStream is = new ByteArrayInputStream(file.get(i)); 
						if (ftpClient.storeFile(fileName, is)) {
							System.out.println(username+","+remoteFilename.get(i));
						} else {
							System.out.println("Could not store file");
						}
						is.close();
					}
					// Logout
					ftpClient.logout();

				} else {
					System.out.println("FTP login failed");
				}

				// Disconnect
				ftpClient.disconnect();

			} else {
				System.out.println("FTP connect to host failed");
			}
		} catch (IOException ioe) {
			System.out.println("FTP client received network error");
		}
	}

	public static void main(String[] args) throws NoSuchAlgorithmException {
		String path = "D://test.txt";
		String fileName = "test.txt";
		File file = new File(path);
		try {
			FileInputStream fis = new FileInputStream(file);
			ByteArrayOutputStream bos = new ByteArrayOutputStream(1000);
		 	byte[] b = new byte[1000];
			int n;
			while ((n = fis.read(b)) != -1) {
				bos.write(b, 0, n);
			}
			fis.close();
			byte[] data = bos.toByteArray();
			bos.close();
			List list1 = new ArrayList();
			List list2 = new ArrayList();
			list1.add(data);
			list2.add(fileName);
			FtpsUtil.putFile("xxx.xxx.xx.xx", xx, "username", "password", list1, list2);
			//FtpUtil.putFile(host, port, username, password, bytes, fileName);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}

 我这里需要做的是批量文件上传同一用户，所以自己把传进来的文件参数返回类型改成了list避免同一用户多次连接服务器。

期间遇到乱码问题，从网上搜到解决方案。

还发现  上传excel文件至ftp服务器之后，从ftp上down下来的excel文件打开会提示出错，这家伙让我研究了两个小时。。幸好也从网上找到了问题解决，需要定义文件上传的类型格式

ftpClient.setFileType(FTP.BINARY_FILE_TYPE);