问

使用参数进行改造和GET

勇敢的柯柯_j 发布于 2023-01-11 10:27

api

我正在尝试使用Retrofit向Google GeoCode API发送请求.服务界面如下所示:

public interface FooService {    
    @GET("/maps/api/geocode/json?address={zipcode}&sensor=false")
    void getPositionByZip(@Path("zipcode") int zipcode, Callback cb);
}

当我打电话给服务时:

OkHttpClient okHttpClient = new OkHttpClient();

RestAdapter restAdapter = new RestAdapter.Builder().setEndpoint(Constants.GOOGLE_GEOCODE_URL).setClient(new OkClient(okHttpClient)).build();

FooService service = restAdapter.create(FooService.class);

service.getPositionByZip(zipCode, new Callback() {
    @Override public void success(String jsonResponse, Response response) {
       ...
    }
@Override public void failure(RetrofitError retrofitError) {
    }
});

我收到以下stacktrace:

06-07 13:18:55.337: E/AndroidRuntime(3756): FATAL EXCEPTION: Retrofit-Idle
06-07 13:18:55.337: E/AndroidRuntime(3756): Process: com.marketplacehomes, PID: 3756
06-07 13:18:55.337: E/AndroidRuntime(3756): java.lang.IllegalArgumentException: FooService.getPositionByZip: URL query string "address={zipcode}&sensor=false" must not have replace block.
06-07 13:18:55.337: E/AndroidRuntime(3756):     at retrofit.RestMethodInfo.methodError(RestMethodInfo.java:120)
06-07 13:18:55.337: E/AndroidRuntime(3756):     at retrofit.RestMethodInfo.parsePath(RestMethodInfo.java:216)
06-07 13:18:55.337: E/AndroidRuntime(3756):     at retrofit.RestMethodInfo.parseMethodAnnotations(RestMethodInfo.java:162)
06-07 13:18:55.337: E/AndroidRuntime(3756):     at

我看了一下StackOverflow问题:Retrofit:@GET命令中的多个查询参数？但它似乎不适用.

我从这里逐字逐句地接受了代码:http://square.github.io/retrofit/所以我对理解这个问题感到有点失落.

思考？

2 个回答

AFAIK {...}只能用作路径,而不能用在查询参数中.试试这个:

public interface FooService {    

    @GET("/maps/api/geocode/json?sensor=false")
    void getPositionByZip(@Query("address") String address, Callback<String> cb);
}

如果您要传递未知数量的参数,可以使用以下操作:

public interface FooService {    

    @GET("/maps/api/geocode/json")
    @FormUrlEncoded
    void getPositionByZip(@FieldMap Map<String, String> params, Callback<String> cb);
}

2023-01-11 10:29 回答

萌萌虾

@QueryMap 为我工作而不是 FieldMap

如果你有一堆GET参数,另一种将它们传递到你的网址的方法是HashMap.

class YourActivity extends Activity {

private static final String BASEPATH = "http://www.example.com";

private interface API {
    @GET("/thing")
    void getMyThing(@QueryMap Map<String, String> params, new Callback<String> callback);
}

public void onCreate(Bundle savedInstanceState) {
   super.onCreate(savedInstanceState);
   setContentView(R.layout.your_layout);

   RestAdapter rest = new RestAdapter.Builder().setEndpoint(BASEPATH).build();
   API service = rest.create(API.class);

   Map<String, String> params = new HashMap<String, String>();
   params.put("key1", "val1");
   params.put("key2", "val2");
   // ... as much as you need.

   service.getMyThing(params, new Callback<String>() {
       // ... do some stuff here.
   });
}
}

调用的URL将是http://www.example.com/thing/?key1=val1&key2=val2

2023-01-11 10:29 回答

我才是陈墨_773

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