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java http如何設置超時

小樊
211
2024-11-15 18:27:08
欄目: 編程語言

在Java中,您可以使用java.net.HttpURLConnection或者java.net.URL類來設置HTTP請求的超時。以下是兩種方法的示例:

方法1:使用 HttpURLConnection

import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.URL;

public class Main {
    public static void main(String[] args) {
        try {
            URL url = new URL("http://example.com");
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();

            // 設置連接超時(單位:毫秒)
            connection.setConnectTimeout(5000);

            // 設置讀取超時(單位:毫秒)
            connection.setReadTimeout(5000);

            int responseCode = connection.getResponseCode();
            System.out.println("Response Code: " + responseCode);

            connection.disconnect();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

方法2:使用 URL

import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.URL;

public class Main {
    public static void main(String[] args) {
        try {
            URL url = new URL("http://example.com");
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();

            // 設置連接超時(單位:毫秒)
            connection.setConnectTimeout(5000);

            // 設置讀取超時(單位:毫秒)
            connection.setReadTimeout(5000);

            int responseCode = connection.getResponseCode();
            System.out.println("Response Code: " + responseCode);

            connection.disconnect();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

在這兩個示例中,我們將連接超時和讀取超時都設置為5000毫秒(5秒)。您可以根據需要調整這些值。

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