错误：java.net.ProtocolException: Expected one of [OPTIONS, GET, HEAD, POST, PUT, DELETE, TRACE, PATCH] but was get

在互联网上未找到解决方案

源代码：按照视频写的

public class MainActivity extends AppCompatActivity {

    private static final String TAG = "MainActivity";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    public void LoadJson(View view) {
        try {

            URL url = new URL("http://10.0.2.2:9102/get/text");
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
            connection.setConnectTimeout(10000);
            connection.setRequestMethod("get");
            connection.setRequestProperty("Accept-Language","zh-CN,zh;q=0.9");
            connection.setRequestProperty("Accept-Encoding","gzip-deflate");
            connection.setRequestProperty("Accept","*/*");
            connection.connect();
            //结果码

            int respondcode = connection.getResponseCode();
            if (respondcode == 200){
                
                Map<String, List<String>> headerFields = connection.getHeaderFields();
                connection.getHeaderFields();
                Set<Map.Entry<String, List<String>>> entries = headerFields.entrySet();
                for (Map.Entry<String, List<String>> entry : entries) {
                    Log.d(TAG,entry.getKey()+" == "+entry.getValue());

                            }
            }
            Object content=connection.getContent();
            Log.d(TAG,"content-->"+content);
        }catch (Exception e){
            e.printStackTrace();
        }
    }
}