package org.springblade.modules.FTP;
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import org.apache.commons.net.ftp.FTP;
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import org.apache.commons.net.ftp.FTPClient;
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import org.apache.commons.net.ftp.FTPReply;
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import org.springframework.scheduling.annotation.Scheduled;
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import org.springframework.stereotype.Component;
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import java.io.IOException;
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import java.io.InputStream;
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@Component
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public class monitor {
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//ftp服务器IP地址
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private static String ftpHost = "192.168.0.105";
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//ftp服务器端口
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private static int ftpPort = 21;
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//ftp服务器用户名
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private static String ftpUserName = "yly";
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//ftp服务器密码
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private static String ftpPassword = "Yly@123";
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//ftp服务器路径
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private static String ftpPath = "anbao/sql.json";
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@Scheduled(cron = "*/5 * * * * ?")
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public static boolean isFTPFileExist() {
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FTPClient ftp = new FTPClient();
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try {
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// 连接ftp服务器
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ftp.connect(ftpHost, ftpPort);
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// 登陆
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ftp.login(ftpUserName, ftpPassword);
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// 检验登陆操作的返回码是否正确
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if (!FTPReply.isPositiveCompletion(ftp.getReplyCode())) {
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ftp.disconnect();
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return false;
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}
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ftp.enterLocalActiveMode();
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// 设置文件类型为二进制，与ASCII有区别
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ftp.setFileType(FTP.BINARY_FILE_TYPE);
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// 设置编码格式
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ftp.setControlEncoding("GBK");
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// 提取绝对地址的目录以及文件名
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ftpPath = ftpPath.replace("ftp://" + ftpHost + ":" + ftpPort + "/", "");
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String dir = ftpPath.substring(0, ftpPath.lastIndexOf("/"));
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String file = ftpPath.substring(ftpPath.lastIndexOf("/") + 1);
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// 进入文件所在目录，注意编码格式，以能够正确识别中文目录
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ftp.changeWorkingDirectory(new String(dir.getBytes("GBK"), FTP.DEFAULT_CONTROL_ENCODING));
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// 检验文件是否存在
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InputStream is = ftp.retrieveFileStream(new String(file.getBytes("GBK"), FTP.DEFAULT_CONTROL_ENCODING));
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if (is == null || ftp.getReplyCode() == FTPReply.FILE_UNAVAILABLE) {
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System.out.println(false);
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return false;
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}
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if (is != null) {
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System.out.println(true);
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is.close();
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ftp.completePendingCommand();
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}
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return true;
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} catch (Exception e) {
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e.printStackTrace();
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} finally {
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if (ftp != null) {
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try {
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ftp.disconnect();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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}
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return false;
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}
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}
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