使用原生java发送http get请求工具类

快来打我* 2022-12-11 04:23 132阅读 0赞

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 "";
        }
    }