Hey there! Let’s work through this problem for your Minecraft mod—no external libraries, no risky manual thread creation, and zero main-thread blocking. Here are the most mod-compliant approaches:

Option 1: Use Minecraft’s Built-in Async Task System #

Minecraft has its own managed async task system designed specifically for mods, so you don’t have to mess with manual thread creation (which can cause crashes or compatibility issues). You can offload the HTTP request to a background thread that the game handles safely.

Here’s a concrete example using Java 11+’s built-in HttpClient (which modern Minecraft versions support):

import net.minecraft.client.Minecraft;
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;

public void sendNonBlockingGet(String endpointUrl) {
    // Submit the request task to Minecraft's async executor
    Minecraft.getInstance().submitAsyncTask(() -> {
        HttpClient client = HttpClient.newHttpClient();
        HttpRequest request = HttpRequest.newBuilder()
                .uri(URI.create(endpointUrl))
                .GET()
                .build();
        
        try {
            // Send the request and discard the response (since we don't need it)
            client.send(request, java.net.http.HttpResponse.BodyHandlers.discarding());
        } catch (Exception e) {
            // Log errors using Minecraft's built-in logger for consistency
            Minecraft.getInstance().getLogger().error("Failed to send GET request", e);
        }
    });
}

Option 2: Java’s CompletableFuture (Standard Library Only) #

If you prefer sticking strictly to standard Java without relying on Minecraft-specific APIs, CompletableFuture lets you run the request asynchronously using the JVM’s common fork-join pool. This is still safe for mods as long as you don’t interact with game state in the background thread (which you aren’t, since you only need to send the request).

Example with HttpURLConnection (works for older Java versions if needed):

import java.net.HttpURLConnection;
import java.net.URL;
import java.util.concurrent.CompletableFuture;

public void sendNonBlockingGet(String endpointUrl) {
    CompletableFuture.runAsync(() -> {
        HttpURLConnection connection = null;
        try {
            URL url = new URL(endpointUrl);
            connection = (HttpURLConnection) url.openConnection();
            connection.setRequestMethod("GET");
            
            // Just trigger the request—we don't read the response
            connection.getResponseCode();
        } catch (Exception e) {
            // Replace with your mod's logger for proper debugging
            e.printStackTrace();
        } finally {
            if (connection != null) {
                connection.disconnect();
            }
        }
    });
}

Key Notes for Mod Compliance #

• Skip manual thread creation: Minecraft’s thread model is strict—using its built-in async system or standard Java async utilities avoids crashes from thread conflicts.
• No external dependencies: Both solutions use only Java’s standard library and (for option 1) Minecraft’s existing APIs, so you don’t need to add async-http-client or other libraries.
• Always log errors: Don’t let failed requests fail silently—use Minecraft’s logger to track issues without breaking the game’s runtime.

内容的提问来源于stack exchange，提问作者Tvde1