发送HTTP GET请求我需要帮助.我的代码如下:
URL connectURL = new URL("url");
HttpURLConnection conn = (HttpURLConnection)connectURL.openConnection();
conn.setDoInput(true);
conn.setDoOutput(true);
conn.setUseCaches(false);
conn.setRequestMethod("GET");
conn.connect();
conn.getOutputStream().flush();
String response = getResponse(conn);
Run Code Online (Sandbox Code Playgroud)
但它失败了getResponse(conn);为什么?