Question

我已经编写了一个代码来查找网页的响应时间，但它总是如此给0时间。可以有人plz完成此代码以获得响应时间

mycode

import java.io.*;
import java.net.URL;
public class NewClass {
public static void main(String[] args) throws IOException {


    long start = System.currentTimeMillis();

    URL myURL = new URL("https://stackoverflow.com/");


    long finish = System.currentTimeMillis();
    long totalTime = finish - start; 

    System.out.println("Total Time for page load - "+totalTime);

 }

}

Answer 1

你可以用

来做

HttpURLConnection connection = null;
       try {
                URL url = new URL("http://stackoverflow.com/");
                connection = (HttpURLConnection) url.openConnection();

                long start = System.currentTimeMillis();
                String jsonResponse = myInputStreamReader(connection.getInputStream());

                long finish = System.currentTimeMillis();
                long totalTime = finish - start;
                System.out.println("Total Time for page load - " + totalTime);

            } catch (Exception e) {
                e.printStackTrace();
            } finally {
                connection.disconnect();
            }

    static public String myInputStreamReader(InputStream in) throws IOException {

            StringBuilder sb = null;
            try {
                InputStreamReader reader = new InputStreamReader(in);
                sb = new StringBuilder();
                int c = reader.read();
                while (c != -1) {
                    sb.append((char) c);
                    c = reader.read();
                }
                reader.close();
                return sb.toString();

            } catch (Exception e) {
                e.printStackTrace();
            } finally {
            }
            return sb.toString();
        }

Answer 2

以下是您的问题的答案：

即使不使用java.net.URL和java.net.HttpURLConnection类中的selenium和apache，您也可以找到网页的响应时间，如下所示 -

import java.net.HttpURLConnection;
import java.net.URL;

public class Q44304154_response_time_of_webpage_2 {

public static void main(String[] args) throws Exception {


    long start = 0;
    long finish = 0;
    String stack_url = "https://stackoverflow.com/";

    try {
        URL url = new URL(stack_url);
        HttpURLConnection httpUrlConnect = (HttpURLConnection) url.openConnection();
        httpUrlConnect.setConnectTimeout(5000);
        start = System.currentTimeMillis();
        httpUrlConnect.connect();

        if (httpUrlConnect.getResponseCode() == 200) 
        {
            finish = System.currentTimeMillis();
            System.out.println(stack_url + " - " + httpUrlConnect.getResponseMessage() + " took " + (finish-start) + " Milli Seconds.");
        }

        if (httpUrlConnect.getResponseCode() == httpUrlConnect.HTTP_NOT_FOUND) 
        {
            System.out.println(
                    stack_url + " - " + httpUrlConnect.getResponseMessage() + " - " + httpUrlConnect.HTTP_NOT_FOUND);
        } 
    } 
    catch (Exception e) 
    {

    }

    System.out.println("Total Time for page load - "+ (finish-start));

 }


}

如果这回答你的问题，请告诉我。

java代码，无需使用selenium和apache即可查找网页的响应时间

2 个答案: