使用原生java发送http get请求工具类

使用原生jdk实现请求资源工具类

import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

public class HttpUtils {
  
    /**
     * get请求
     * @param getUrl
     * @return
     */
    public static String get(String getUrl) {
        try {
            URL url = new URL(getUrl);
            //设置连接方式
            HttpURLConnection conn = (HttpURLConnection) url.openConnection();
            conn.setRequestMethod("GET");
            //设置主机连接时间超时时间3000毫秒
            conn.setConnectTimeout(3000);
            //设置读取远程返回数据的时间3000毫秒
            conn.setReadTimeout(3000);

            //发送请求
            conn.connect();
            //获取输入流
            InputStream is = conn.getInputStream();
            //封装输入流
            BufferedReader br = new BufferedReader(new InputStreamReader(is, "UTF-8"));
            //接收读取数据
            StringBuffer sb = new StringBuffer();

            String line = null;
            while ((line = br.readLine()) != null) {
                sb.append(line);
                sb.append("\r\n");
            }
            if (null != br) {
                br.close();
            }
            if (null != is) {
                is.close();
            }
            //关闭连接
            conn.disconnect();
            return sb.toString();
        } catch (Exception e) {
           e.getMessage();
        }
        return "";
    }
}