Java

Example: Http.CloseAllConnections method

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Demonstrates how to call the CloseAllConnections method. Chilkat2 Java

import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.Http;
import com.chilkatsoft.chilkat2.StringBuilder;

public class ChilkatExample {

    public static void main(String[] args) {
        Http http = new Http();

        // Demonstrate
        String url = "https://finnhub.io/api/v1/quote?symbol={$symbol}&token={$api_key}";

        // When the request is sent, the {$symbol} is replaced with "MSFT"
        // and the {$api_key} is replaced with "1234567890ABCDEF"
        http.setUrlVar("symbol", "MSFT");
        http.setUrlVar("api_key", "1234567890ABCDEF");

        StringBuilder sbJson = new StringBuilder();
        try {
            http.quickGetSb(url, sbJson);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        int statusCode = http.getLastStatus();
        System.out.println(http.getLastResponseHeader());

        // The response header contains this:

        // Date: Tue, 19 Aug 2025 12:18:56 GMT
        // Content-Type: application/json; charset=utf-8
        // Transfer-Encoding: chunked
        // Connection: keep-alive
        // Content-Encoding: gzip

        // The "Connection: keep-alive" header ensures the server keeps the connection open for subsequent requests.
        // If the server responds with a "Connection: close" header, it indicates the connection will be closed after the response.
        // Consequently, Chilkat will also close the connection, requiring a new one to be established for any subsequent requests to the same server.

        // If your application uses the same HTTP object instance to send requests to a different server, a new connection will be established with that server.
        // Existing connections remain open, with Chilkat maintaining up to 10 open connections.
        // If all 10 connections are in use, Chilkat will close the least recently used connection to connect to a new server.

        // Your application can explicitly close all open connections like this:
        try {
            http.closeAllConnections();
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        System.out.println("Success.");
    }
}