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<String> cb);
}
当我致电该服务时:
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<String>() {
@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: multiple query parameters in @GET command?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。
思想?
答案 0 :(得分:123)
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);
}
答案 1 :(得分:33)
@QueryMap
为我而不是FieldMap
如果您有一堆GET参数,另一种将它们传递到您的网址的方法是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.
});
}
}
答案 2 :(得分:2)
@Headers(
"Accept: application/json",
"Content-Type: application/json",
"Platform: android")
@GET("api/post/post/{id}")
fun showSelectedPost(
@Path("id") id: String,
@Header("Version") apiVersion: Int
): Call<Post>
改造 + Kotlin + RestAPI 对我有用的示例。
我希望这个带参数的 @Header
, @GET
, @Path
也能帮助别人)
答案 3 :(得分:1)
我还想澄清一下,如果您要构建复杂的url参数,则需要手动构建它们。也就是说,如果您的查询是example.com/?latlng=-37,147
,而不是单独提供lat和lng值,则需要在外部构建latlng字符串,然后将其作为参数提供,即:
public interface LocationService {
@GET("/example/")
void getLocation(@Query(value="latlng", encoded=true) String latlng);
}
请注意,encoded=true
是必需的,否则改型将在字符串参数中对逗号进行编码。用法:
String latlng = location.getLatitude() + "," + location.getLongitude();
service.getLocation(latlng);
答案 4 :(得分:0)
科特林中的完整工作示例,我已将API密钥替换为1111 ...
val apiService = API.getInstance().retrofit.create(MyApiEndpointInterface::class.java)
val params = HashMap<String, String>()
params["q"] = "munich,de"
params["APPID"] = "11111111111111111"
val call = apiService.getWeather(params)
call.enqueue(object : Callback<WeatherResponse> {
override fun onFailure(call: Call<WeatherResponse>?, t: Throwable?) {
Log.e("Error:::","Error "+t!!.message)
}
override fun onResponse(call: Call<WeatherResponse>?, response: Response<WeatherResponse>?) {
if (response != null && response.isSuccessful && response.body() != null) {
Log.e("SUCCESS:::","Response "+ response.body()!!.main.temp)
temperature.setText(""+ response.body()!!.main.temp)
}
}
})