我是Android编程的初学者。刚刚开始。
现在我试图在Android和Tomcat服务器之间使用改造进行通信。
但每当我点击登录按钮,这个错误让我发疯。 改进错误:找不到改进注释。 (参数#1)
java.lang.IllegalArgumentException: No Retrofit annotation found. (parameter #1)
这里是我的错误..
java.lang.IllegalArgumentException: No Retrofit annotation found. (parameter #1)
for method NetworkService.postLogin
at com.example.ab.MainActivity.networkServiceModule(MainActivity.java:68)
at com.example.ab.MainActivity$1.onClick(MainActivity.java:50)
我gradle这个
compile 'com.squareup.retrofit:retrofit:2.0.0-beta2'
compile 'com.squareup.retrofit:converter-gson:2.0.0-beta2'
界面添加了这些:
public interface NetworkService {
@POST("/Attendance/login.jsp")
Call<PostJson> postLogin(PostJson postJson);
}
MainActivity的某些部分:
ApplicationController application = ApplicationController.getInstance();
application.buildNetworkService("xxx.xxx.xxx.xxx",8080);
networkService = ApplicationController.getInstance().getNetworkService();
login_btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
String ID = id.getText().toString();
String Pwd = password.getText().toString();
networkServiceModule(ID,Pwd); //this is line 50.
}
});
public void networkServiceModule(String ID, String Pwd){
Log.d("networkServiceModule","ID : "+ID);
Log.d("networkServiceModule","PW : "+Pwd);
Call<PostJson> thumbnailCall = networkService.postLogin(new PostJson(ID,Pwd)); //this is line 68.
thumbnailCall.enqueue(new Callback<PostJson>() {
@Override
public void onResponse(Response<PostJson> response, Retrofit retrofit) {
if(response.isSuccess()) {
String resultCode = response.body().getResult_code().toString();
Toast.makeText(getBaseContext(), "Login : " + resultCode, Toast.LENGTH_SHORT).show();
} else {
int statusCode = response.code();
Log.d("networkServiceModule", "response Code : "+statusCode);
}
}
的ApplicationController:
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import retrofit.GsonConverterFactory;
import retrofit.Retrofit;
public class ApplicationController extends Application {
private static ApplicationController instance;
public static ApplicationController getInstance() {
return instance;
}
@Override
public void onCreate() {
super.onCreate();
ApplicationController.instance = this;
}
private NetworkService networkService;
public NetworkService getNetworkService() {
return networkService;
}
private String baseUrl;
public void buildNetworkService(String ip, int port) {
synchronized (ApplicationController.class) {
baseUrl = String.format("http://%s:%d", ip, port);
Gson gson = new GsonBuilder()
.create();
GsonConverterFactory factory = GsonConverterFactory.create(gson);
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(baseUrl)
.addConverterFactory(factory)
.build();
networkService = retrofit.create(NetworkService.class);
}
}
}
我一直试图运用一些解决方案,我从StackOverflow上了,但未能找到一个矿..
这是我在计算器上的第一个问题,对于看起来丑陋的代码抱歉。
使用了'任何理由 'com.squareup.retrofit:改造:2.0.0-beta2'' VS'' com.squareup.retrofit2:改造:2.1.0''? – Egor