使用Java实现HTTP客户端的基本请求-蒲公英云

使用Java实现HTTP客户端的基本请求

原创心已赠人 2024-12-01 16:48 147阅读 0赞

在Java中，我们可以使用HttpURLConnection或Apache HttpClient来发送基本的HTTP请求。这里以HttpURLConnection为例：

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
public class SimpleHttpClient {
    public static void main(String[] args) {
        // 创建URL对象
        URL url = new URL("http://example.com");
        // 发送GET请求
        try (HttpURLConnection connection = (HttpURLConnection) url.openConnection()) {
            // 设置连接为非KeepAlive模式
            connection.setRequestProperty("Connection", "close");
            // 执行GET请求
            int responseCode = connection.getResponseCode();
            System.out.println("Response Code: " + responseCode);
            // 读取响应数据
            BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()))));
            String inputLine;
            StringBuffer content = new StringBuffer();
            while ((inputLine = in.readLine()) != null)) {
                content.append(inputLine);
            }
            in.close();
            System.out.println("Response Content: " + content.toString());
        } catch (Exception e) {
            System.err.println(e.getMessage());
            e.printStackTrace();
        }
    }
}