鸿蒙如何查看请求参数

Question

DevEcoStudio如何查看请求信息以及请求携带的参数信息，类似于电脑页面的F12

Answer 1

weixin_53527910 下午好🌅🌅🌅
本答案参考ChatGPT-3.5

在DevEcoStudio中，可以通过使用网络抓包工具来查看请求信息以及请求携带的参数信息。具体操作步骤如下：

1. 在DevEcoStudio中打开项目，并连接到设备或模拟器。
2. 在项目代码中添加网络抓包工具。可以使用HarmonyOS提供的NetworkDiagnosticTool类来进行网络抓包。

   import ohos.devtools.JLog;
   import ohos.devtools.JLogConstants;
   import ohos.devtools.JLogManager;
   import ohos.hiviewdfx.HiLog;
   import ohos.hiviewdfx.HiLogLabel;
   import ohos.http.HttpRequest;
   import ohos.http.HttpResponse;
   import java.io.IOException;
   import java.io.UnsupportedEncodingException;
   import java.net.HttpURLConnection;
   import java.net.ProtocolException;
   
   public class NetworkDiagnosticTool {
       private static final HiLogLabel LABEL_LOG = new HiLogLabel(HiLog.LOG_APP, 0x00201, "NetworkDiagnosticTool");
   
       private static final String TAG = "NetworkDiagnosticTool";
   
       private static final int DEFAULT_READ_TIMEOUT = 30000;
   
       private static final int DEFAULT_CONNECT_TIMEOUT = 30000;
   
       // 发送HTTP请求，获取结果
       public static String sendHttpRequest(String url, String method, String requestBody, String contentType) {
           HiLog.debug(LABEL_LOG, "sendHttpRequest: url = [%s], method = [%s], requestBody = [%s], contentType = [%s]",
                   url, method, requestBody, contentType);
   
           HttpURLConnection httpURLConnection = null;
           try {
               httpURLConnection = (HttpURLConnection) (new java.net.URL(url)).openConnection();
               httpURLConnection.setConnectTimeout(DEFAULT_CONNECT_TIMEOUT);
               httpURLConnection.setReadTimeout(DEFAULT_READ_TIMEOUT);
               httpURLConnection.setRequestMethod(method);
               httpURLConnection.setRequestProperty("Accept-Encoding", "gzip");
               httpURLConnection.setRequestProperty("Content-Type", contentType);
               httpURLConnection.setRequestProperty("Connection", "Keep-alive");
               // 设置其他请求头
               // httpURLConnection.setRequestProperty("Key", "Value");
   
               if (requestBody != null && requestBody.length() > 0) {
                   httpURLConnection.setDoOutput(true);
                   byte[] bytes = requestBody.getBytes("UTF-8");
                   httpURLConnection.getOutputStream().write(bytes);
               }
   
               httpURLConnection.connect();
   
               int statusCode = httpURLConnection.getResponseCode();
               if (statusCode == HttpURLConnection.HTTP_OK) {
                   byte[] bytes = IOUtils.readInputStream(httpURLConnection.getInputStream());
                   String responseStr = new String(bytes, "UTF-8");
                   HiLog.debug(LABEL_LOG, "sendHttpRequest: responseStr = [%s]", responseStr);
                   return responseStr;
               } else {
                   HiLog.error(LABEL_LOG, "sendHttpRequest: request failed, statusCode = [%d]", statusCode);
               }
           } catch (ProtocolException | UnsupportedEncodingException e) {
               HiLog.error(LABEL_LOG, "sendHttpRequest: exception = %s", e.toString());
           } catch (IOException e) {
               HiLog.error(LABEL_LOG, "sendHttpRequest: exception = %s", e.toString());
           } finally {
               if (httpURLConnection != null) {
                   httpURLConnection.disconnect();
               }
           }
   
           return null;
       }
   
       private static class IOUtils {
           private static final HiLogLabel LABEL_IO = new HiLogLabel(HiLog.LOG_APP, 0x00202, "IOUtils");
   
           // 读取输入流
           static byte[] readInputStream(java.io.InputStream inputStream) {
               byte[] buffer;
               try {
                   int length = inputStream.available();
                   buffer = new byte[length];
                   if (inputStream.read(buffer) != -1) {
                       return buffer;
                   }
               } catch (java.io.IOException e) {
                   HiLog.error(LABEL_IO, "readInputStream: IO exception");
               }
               return new byte[0];
           }
       }
   }
   

3. 在项目中的相关位置调用网络抓包工具。例如，可以在发送HTTP请求的位置添加如下代码来查看请求信息以及请求携带的参数信息：

   String url = "http://example.com/api";
   String method = "GET";
   String requestBody = "";
   String contentType = "application/json";
   String response = NetworkDiagnosticTool.sendHttpRequest(url, method, requestBody, contentType);
   

4. 在DevEcoStudio的控制台中查看抓包日志。在日志中，你将看到发送的请求URL、请求方法、请求体数据等信息，从而获取请求参数。

总结：

通过在代码中集成网络抓包工具，你可以在DevEcoStudio中查看请求信息以及请求携带的参数信息。在控制台的日志中查找网络请求相关的信息，你将能够获取到请求参数。