import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.nio.charset.StandardCharsets;
public class HttpPostExample {
public static void main(String[] args) {
try {
URL url = new URL("https://example.com/api");
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type", "application/json");
String data = "{\"key\":\"value\"}";
byte[] postData = data.getBytes(StandardCharsets.UTF_8);
connection.setDoOutput(true);
try (OutputStream outputStream = connection.getOutputStream()) {
outputStream.write(postData);
outputStream.flush();
}
try (InputStream inputStream = connection.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream))) {
StringBuilder response = new StringBuilder();
String line;
while ((line = reader.readLine()) != null) {
response.append(line);
}
System.out.println(response.toString());
}
connection.disconnect();
} catch (Exception e) {
e.printStackTrace();
}
}
}
