package com.moral.controller;
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import org.apache.commons.net.ftp.FTPClient;
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import org.springframework.web.bind.annotation.*;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.InputStreamReader;
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@RestController
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@RequestMapping("upgrade")
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@CrossOrigin(origins = "*", maxAge = 3600)
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public class UpgradeController {
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private FTPClient ftpClient;
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private String fileName = "Version.xml";
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private String ip = "121.40.92.176";
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private String userName = "ftp_user";
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private String userPwd = "qwer1234";
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private int port = 21;
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private String path = "/";
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@RequestMapping(value = "/index", method = RequestMethod.GET)
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public String index() throws IOException {
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ftpClient = new FTPClient();
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try {
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ftpClient.connect(ip, port);
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ftpClient.login(userName, userPwd);
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if (path != null && path.length() > 0) {
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ftpClient.changeWorkingDirectory(path);
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}
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} catch (Exception e) {
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e.printStackTrace();
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} finally {
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ftpClient.logout();
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ftpClient.disconnect();
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}
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return readFile();
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}
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public String readFile() {
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InputStream ins = null;
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StringBuilder builder = null;
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try {
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ins = ftpClient.retrieveFileStream(fileName);
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BufferedReader reader = new BufferedReader(new InputStreamReader(ins, "UTF-8"));
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String line;
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builder = new StringBuilder(150);
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while ((line = reader.readLine()) != null) {
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builder.append(line);
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}
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reader.close();
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if (ins != null) {
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ins.close();
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}
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ftpClient.getReply();
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} catch (IOException e) {
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e.printStackTrace();
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}
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return builder.toString();
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}
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}
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