BufferedReader streamReader = new BufferedReader( new InputStreamReader(request.getInputStream(), "UTF-8"));

这段代码是用来读取HTTP请求中的数据。具体来说，它创建了一个BufferedReader对象，用于从request.getInputStream()中读取数据，同时指定了输入流的编码方式为UTF-8。通常情况下，当我们向服务器发送HTTP请求时，会在请求体中携带一些参数或者数据，这些数据就是通过这个输入流来传输的。在服务器端，我们需要使用类似这样的代码来读取这些数据，然后在代码中进行相应的处理和解析。

相关问题

import java.io.BufferedReader; import java.io.InputStreamReader; import java.io.PrintWriter; import java.net.Socket; import java.util.Scanner; public class Client { public static void main(String[] args) { new Client().go();// 创建一个新的 client 对象，并调用 go() 方法 } public void go() { try { Socket sock = new Socket("127.0.0.1", 5000); InputStreamReader streamReader = new InputStreamReader(sock.getInputStream()); BufferedReader reader = new BufferedReader(streamReader); PrintWriter writer = new PrintWriter(sock.getOutputStream()); System.out.println("Connected to server."); System.out.println("请输入你想对服务端说的话:"); Thread readerThread = new Thread(new IncomingReader(reader)); readerThread.start(); Scanner userInput = new Scanner(System.in); while (true) { String message = userInput.nextLine(); writer.println(message); writer.flush(); } } catch (Exception ex) { ex.printStackTrace(); } } public class IncomingReader implements Runnable { BufferedReader reader; public IncomingReader(BufferedReader reader) { this.reader = reader; } public void run() { String message; try { while ((message = reader.readLine()) != null) { System.out.println(message); } } catch (Exception ex) { ex.printStackTrace(); } } } }请在原有代码的基础上添加对应的注释

下面是针对给出代码的注释说明：

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;
import java.util.Scanner;

public class Client {

    public static void main(String[] args) {
        new Client().go(); // 创建一个新的 client 对象，并调用 go() 方法
    }

    public void go() {
        try {
            Socket sock = new Socket("127.0.0.1", 5000); // 创建 Socket 连接到指定 IP 地址和端口号
            InputStreamReader streamReader = new InputStreamReader(sock.getInputStream()); // 创建输入流读取服务器发送的消息
            BufferedReader reader = new BufferedReader(streamReader);
            PrintWriter writer = new PrintWriter(sock.getOutputStream()); // 创建输出流向服务器发送消息
            System.out.println("Connected to server."); // 连接成功，输出提示信息
            System.out.println("请输入你想对服务端说的话:");
            Thread readerThread = new Thread(new IncomingReader(reader)); // 创建一个线程用于读取服务器发送的消息
            readerThread.start(); // 启动线程

            Scanner userInput = new Scanner(System.in); // 创建 Scanner 对象，用于读取用户输入的消息
            while (true) {
                String message = userInput.nextLine(); // 读取用户输入的消息
                writer.println(message); // 向服务器发送消息
                writer.flush(); // 立即刷新输出流
            }
        } catch (Exception ex) {
            ex.printStackTrace(); // 捕获并打印异常
        }
    }

    public class IncomingReader implements Runnable { // 该类实现 Runnable 接口，用于在新线程中读取服务器发送的消息
        BufferedReader reader;

        public IncomingReader(BufferedReader reader) {
            this.reader = reader;
        }

        public void run() {
            String message;
            try {
                while ((message = reader.readLine()) != null) { // 循环读取服务器发送的消息
                    System.out.println(message); // 输出服务器发送的消息
                }
            } catch (Exception ex) {
                ex.printStackTrace(); // 捕获并打印异常
            }
        }
    }
}

帮我翻译为java代码 var http = (HttpWebRequest)WebRequest.Create(url); http.Accept = "*/*"; http.Method = "POST"; http.ContentType = "application/json; charset=utf-8"; TimeSpan ts = DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, 0); var currentTimeSeconds = Convert.ToInt64(ts.TotalSeconds); var signature = AESHelper.AesLocal(AppId + ApiId + currentTimeSeconds, AppKey); http.Headers["signature"] = signature; http.Headers["apiname"] = ApiId; http.Headers["appid"] = AppId; http.Headers["appkey"] = AppKey; http.ContentType = "application/json;charset=utf-8"; http.UserAgent = "PostmanRuntime/7.26.8"; Random rd = new Random(); var rdNum = rd.Next(100000, 1000000); var signStr = thirdId + "/n" + rdNum + "/n" + currentTimeSeconds + "/n" + key+"/n"; var sign = Md5Helper.Encrypt32(Base64Helper.EncodeBase64(Encoding.UTF8,signStr)); http.Headers["thirdId"] = thirdId; http.Headers["nonceStr"] = rdNum.ToString(); http.Headers["time"] = currentTimeSeconds.ToString(); http.Headers["sign"] = sign; byte[] bs = Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(data)); using (var reqStream = http.GetRequestStream()) { reqStream.Write(bs, 0, bs.Length); } using (var wr = http.GetResponse()) { using (var reader = new StreamReader(wr.GetResponseStream(), Encoding.UTF8)) { var result = reader.ReadToEnd(); var json = (JObject)JsonConvert.DeserializeObject(result); if (json["success"] == null || json["success"].ToString().ToLower() != "true") { Logger.Log(MethodBase.GetCurrentMethod().Name, GetType().Name, 1, "获取广告点位失败：" + JsonConvert.SerializeObject(param)+"////"+result, LogLevel.Error); } return result; } }

下面是Java代码的翻译：

URL url = new URL(urlStr);
HttpURLConnection http = (HttpURLConnection)url.openConnection();
http.setRequestMethod("POST");
http.setDoOutput(true);
http.setDoInput(true);
http.setUseCaches(false);
http.setRequestProperty("Accept", "*/*");
http.setRequestProperty("Content-Type", "application/json; charset=utf-8");
TimeSpan ts = DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, 0);
long currentTimeSeconds = Convert.ToInt64(ts.TotalSeconds);
String signature = AESHelper.AesLocal(AppId + ApiId + currentTimeSeconds, AppKey);
http.setRequestProperty("signature", signature);
http.setRequestProperty("apiname", ApiId);
http.setRequestProperty("appid", AppId);
http.setRequestProperty("appkey", AppKey);
http.setRequestProperty("User-Agent", "PostmanRuntime/7.26.8");
Random rd = new Random();
int rdNum = rd.nextInt(1000000) + 100000;
String signStr = thirdId + "/n" + rdNum + "/n" + currentTimeSeconds + "/n" + key+"/n";
String sign = Md5Helper.Encrypt32(Base64Helper.EncodeBase64(Encoding.UTF8,signStr));
http.setRequestProperty("thirdId", thirdId);
http.setRequestProperty("nonceStr", String.valueOf(rdNum));
http.setRequestProperty("time", String.valueOf(currentTimeSeconds));
http.setRequestProperty("sign", sign);
byte[] postData = data.toString().getBytes(StandardCharsets.UTF_8);
DataOutputStream wr = new DataOutputStream(http.getOutputStream());
wr.write(postData);
wr.flush();
wr.close();
int responseCode = http.getResponseCode();
if (responseCode == HttpURLConnection.HTTP_OK) {
    BufferedReader in = new BufferedReader(new InputStreamReader(http.getInputStream()));
    String inputLine;
    StringBuilder response = new StringBuilder();
    while ((inputLine = in.readLine()) != null) {
        response.append(inputLine);
    }
    in.close();
    String result = response.toString();
    JSONObject json = new JSONObject(result);
    if (json.isNull("success") || !json.getString("success").toLowerCase().equals("true")) {
        Logger.Log(MethodBase.GetCurrentMethod().getName(), getClass().getName(), 1, "获取广告点位失败：" + param.toString() + "////" + result, LogLevel.Error);
    }
    return result;
} else {
    throw new Exception("HTTP请求失败，状态码：" + responseCode);
}