java-docs-samples/appengine-java11/custom-entrypoint/Main.java at master · ashih/java-docs-samples · GitHub

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* Licensed under the Apache License, Version 2.0 (the "License");

* you may not use this file except in compliance with the License.

* You may obtain a copy of the License at

* http://www.apache.org/licenses/LICENSE-2.0

* Unless required by applicable law or agreed to in writing, software

* distributed under the License is distributed on an "AS IS" BASIS,

* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

* See the License for the specific language governing permissions and

* limitations under the License.

// [START gae_java11_simple_server]

import com.sun.net.httpserver.HttpServer;

import java.io.IOException;

import java.io.OutputStream;

import java.net.InetSocketAddress;

public class Main {

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

// Create an instance of HttpServer bound to port defined by the

// PORT environment variable when present, otherwise on 8080.

int port = Integer.parseInt(System.getenv().getOrDefault("PORT", "8080"));

HttpServer server = HttpServer.create(new InetSocketAddress(port), 0);

// Set root URI path.

server.createContext("/", (var t) -> {

byte[] response = "Hello World from Google App Engine Java 11.".getBytes();

t.sendResponseHeaders(200, response.length);

try (OutputStream os = t.getResponseBody()) {

os.write(response);

}

});

// Start the server.

server.start();

}

// [END gae_java11_simple_server]

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