package sendMQTT.HTTPUtils;
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import com.fasterxml.jackson.core.JsonProcessingException;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import java.io.*;
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import java.net.HttpURLConnection;
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import java.net.URL;
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import java.net.URLEncoder;
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import java.nio.charset.StandardCharsets;
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import java.util.Properties;
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/**
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* Properties文件上传工具类
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* 将Properties文件转换为JSON并上传到服务器
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*/
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public class PropertiesFileUploader {
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private static final String DEFAULT_UPLOAD_URL = "http://39.99.43.227:8866/api/file/upload";
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private static final String DEFAULT_FILENAME = "dikuai";
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private static final int CONNECT_TIMEOUT = 30000; // 30秒连接超时
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private static final int READ_TIMEOUT = 60000; // 60秒读取超时
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/**
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* 将Properties文件转换为JSON字符串
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* @param filePath Properties文件路径
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* @return JSON字符串
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* @throws Exception 如果读取或转换失败
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*/
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public static String propertiesFileToJson(String filePath) throws Exception {
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Properties props = new Properties();
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InputStream inputStream = null;
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try {
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File file = new File(filePath);
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if (!file.exists() || !file.isFile()) {
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throw new Exception("文件不存在或不是有效文件: " + filePath);
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}
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inputStream = new FileInputStream(file);
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props.load(inputStream);
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// 使用Jackson将Properties转换为JSON字符串
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ObjectMapper objectMapper = new ObjectMapper();
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// Properties本质上是一个Map<String, String>，可以直接序列化为JSON
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String json = objectMapper.writeValueAsString(props);
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return json;
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} finally {
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if (inputStream != null) {
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inputStream.close();
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}
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}
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}
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/**
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* 生成毫秒级时间戳
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* @return 当前时间的毫秒级时间戳（自1970年1月1日UTC以来的毫秒数）
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*/
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public static long getCurrentTimestamp() {
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return System.currentTimeMillis();
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}
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/**
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* 移动路径发送方法
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*
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* @param mes_id 消息唯一标识
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* @param user_id 用户ID
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* @param device_id 设备编号
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* @param propertiesFilePath Properties文件路径
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* @return JSON字符串
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* @throws Exception 当上传或转换失败时抛出
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*/
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public static String movePathSend(String mes_id, String user_id, String device_id, String propertiesFilePath) {
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// 上传Properties文件
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FileUploadResponse fileUploadResponse = PropertiesFileUploader.uploadPropertiesFile(propertiesFilePath);
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if (fileUploadResponse == null) {
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return null;
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}
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/* // 打印上传响应信息
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System.out.println("文件上传响应信息：");
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System.out.println("├─ 消息内容: " + fileUploadResponse.getMessage());
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System.out.println("├─ 原始文件名: " + fileUploadResponse.getFilename());
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System.out.println("├─ 保存文件名: " + fileUploadResponse.getSavedFilename());
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System.out.println("├─ 文件类型: " + fileUploadResponse.getFileType());
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System.out.println("├─ 文件大小: " + fileUploadResponse.getSize());
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System.out.println("├─ 下载地址: " + fileUploadResponse.getDownloadUrl());
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System.out.println("├─ 文件UUID: " + fileUploadResponse.getUuid());
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System.out.println("└─ 文件哈希: " + (fileUploadResponse.getHexString() != null ? fileUploadResponse.getHexString() : "N/A"));*/
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// 构建数据对象
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MovePathCommand.MovePathData pathData = new MovePathCommand.MovePathData(
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fileUploadResponse.getSavedFilename(), // filename
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fileUploadResponse.getSize(), // filesize
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fileUploadResponse.getDownloadUrl() // url
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);
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long timestamp = PropertiesFileUploader.getCurrentTimestamp();
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// 构建命令对象
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MovePathCommand command = new MovePathCommand(
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mes_id,
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timestamp,
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user_id,
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device_id,
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pathData
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);
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// 转换为JSON字符串
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ObjectMapper objectMapper = new ObjectMapper();
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String jsonString = null;
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try {
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jsonString = objectMapper.writerWithDefaultPrettyPrinter().writeValueAsString(command);
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} catch (JsonProcessingException e) {
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return null;
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}
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return jsonString;
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}
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/**
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* 上传Properties文件到服务器
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*
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* @param filePath Properties文件路径
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* @param filename 文件名（用于URL参数，默认为"dikuai"）
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* @param uploadUrl 上传接口URL（可选，默认使用文档中的URL）
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* @return FileUploadResponse 上传响应结果
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* @throws Exception 当上传失败时抛出
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*/
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public static FileUploadResponse uploadPropertiesFile(String filePath, String filename, String uploadUrl) throws Exception {
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// 参数校验
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if (filePath == null || filePath.trim().isEmpty()) {
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throw new IllegalArgumentException("文件路径不能为空");
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}
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// 使用默认值
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if (filename == null || filename.trim().isEmpty()) {
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filename = DEFAULT_FILENAME;
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}
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if (uploadUrl == null || uploadUrl.trim().isEmpty()) {
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uploadUrl = DEFAULT_UPLOAD_URL;
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}
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// 调用Server.propertiesFileToJson方法生成JSON字符串
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String jsonData = propertiesFileToJson(filePath);
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// 构建完整的URL（包含filename参数，进行URL编码）
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String encodedFilename = URLEncoder.encode(filename, StandardCharsets.UTF_8.name());
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String fullUrl = uploadUrl + "?filename=" + encodedFilename;
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// 发送HTTP POST请求
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HttpURLConnection connection = createConnection(fullUrl);
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try {
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// 发送JSON数据
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try (OutputStream outputStream = connection.getOutputStream()) {
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byte[] jsonBytes = jsonData.getBytes(StandardCharsets.UTF_8);
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outputStream.write(jsonBytes);
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outputStream.flush();
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}
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// 获取响应
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String responseJson = getResponse(connection);
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// 解析响应JSON
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ObjectMapper objectMapper = new ObjectMapper();
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FileUploadResponse response = objectMapper.readValue(responseJson, FileUploadResponse.class);
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return response;
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} finally {
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if (connection != null) {
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connection.disconnect();
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}
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}
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}
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/**
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* 上传Properties文件到服务器（使用默认参数）
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*
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* @param filePath Properties文件路径
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* @return FileUploadResponse 上传响应结果
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* @throws Exception 当上传失败时抛出
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*/
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public static FileUploadResponse uploadPropertiesFile(String filePath) {
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try {
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return uploadPropertiesFile(filePath, DEFAULT_FILENAME, DEFAULT_UPLOAD_URL);
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} catch (Exception e) {
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return null;
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}
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}
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/**
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* 上传Properties文件到服务器（指定文件名）
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*
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* @param filePath Properties文件路径
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* @param filename 文件名（用于URL参数）
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* @return FileUploadResponse 上传响应结果
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* @throws Exception 当上传失败时抛出
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*/
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public static FileUploadResponse uploadPropertiesFile(String filePath, String filename) throws Exception {
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return uploadPropertiesFile(filePath, filename, DEFAULT_UPLOAD_URL);
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}
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/**
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* 创建HTTP连接
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*/
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private static HttpURLConnection createConnection(String urlString) throws Exception {
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URL url = new URL(urlString);
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HttpURLConnection connection = (HttpURLConnection) url.openConnection();
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// 设置连接属性
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connection.setDoOutput(true);
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connection.setDoInput(true);
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connection.setUseCaches(false);
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connection.setRequestMethod("POST");
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connection.setConnectTimeout(CONNECT_TIMEOUT);
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connection.setReadTimeout(READ_TIMEOUT);
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// 设置请求头
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connection.setRequestProperty("Content-Type", "application/json; charset=UTF-8");
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connection.setRequestProperty("Accept", "application/json");
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connection.setRequestProperty("User-Agent", "PropertiesFileUploader/1.0");
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return connection;
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}
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/**
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* 获取服务器响应
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*/
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private static String getResponse(HttpURLConnection connection) throws Exception {
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// 检查HTTP响应码
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int status = connection.getResponseCode();
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InputStream inputStream;
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if (status >= 200 && status < 300) {
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inputStream = connection.getInputStream();
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} else {
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inputStream = connection.getErrorStream();
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}
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// 读取响应内容
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StringBuilder response = new StringBuilder();
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try (BufferedReader reader = new BufferedReader(
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new InputStreamReader(inputStream, StandardCharsets.UTF_8))) {
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String line;
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while ((line = reader.readLine()) != null) {
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response.append(line);
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}
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}
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// 如果请求失败，抛出异常
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if (status >= 400) {
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throw new Exception("HTTP请求失败，状态码: " + status + "，响应: " + response.toString());
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}
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return response.toString();
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}
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/**
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* 安全上传方法（不抛出异常，返回结果对象）
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*
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* @param filePath Properties文件路径
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* @param filename 文件名（用于URL参数，可选）
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* @param uploadUrl 上传接口URL（可选）
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* @return UploadResult 包含上传结果的封装对象
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*/
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public static UploadResult uploadPropertiesFileSafe(String filePath, String filename, String uploadUrl) {
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try {
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FileUploadResponse response = uploadPropertiesFile(filePath, filename, uploadUrl);
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ObjectMapper objectMapper = new ObjectMapper();
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String responseJson = objectMapper.writeValueAsString(response);
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return new UploadResult(true, response.getMessage(), responseJson, 200);
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} catch (Exception e) {
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return new UploadResult(false, "上传失败: " + e.getMessage(), null, 500);
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}
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}
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/**
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* 安全上传方法（使用默认参数）
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*
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* @param filePath Properties文件路径
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* @return UploadResult 包含上传结果的封装对象
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*/
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public static UploadResult uploadPropertiesFileSafe(String filePath) {
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return uploadPropertiesFileSafe(filePath, DEFAULT_FILENAME, DEFAULT_UPLOAD_URL);
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}
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/**
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* 上传结果封装类
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*/
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public static class UploadResult {
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private boolean success;
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private String message;
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private String data;
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private int statusCode;
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public UploadResult(boolean success, String message, String data, int statusCode) {
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this.success = success;
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this.message = message;
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this.data = data;
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this.statusCode = statusCode;
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}
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public boolean isSuccess() {
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return success;
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}
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public String getMessage() {
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return message;
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}
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public String getData() {
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return data;
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}
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public int getStatusCode() {
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return statusCode;
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}
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@Override
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public String toString() {
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return "UploadResult{" +
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"success=" + success +
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", message='" + message + '\'' +
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", data='" + data + '\'' +
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", statusCode=" + statusCode +
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'}';
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}
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}
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}
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