1)——添加依赖关系
compile 'com.google.code.gson:gson:2.6.2'
compile 'com.squareup.retrofit2:retrofit:2.3.0'
compile 'com.squareup.retrofit2:converter-gson:2.3.0'
2)创建Api Handler类
public class ApiHandler {
public static final String BASE_URL = "URL";
private static Webservices apiService;
public static Webservices getApiService() {
if (apiService == null) {
Gson gson = new GsonBuilder()
.setLenient()
.create();
Retrofit retrofit = new Retrofit.Builder().addConverterFactory(GsonConverterFactory.create(gson)).baseUrl(BASE_URL).build();
apiService = retrofit.create(Webservices.class);
return apiService;
} else {
return apiService;
}
}
}
3)从Json模式2 pojo制作bean类
还记得
-目标语言:Java
-源类型:JSON
注释风格:Gson
-select包含getter和setter
-你也可以选择允许附加属性
http://www.jsonschema2pojo.org/
4)建立API调用接口
public interface Webservices {
@POST("ApiUrlpath")
Call<ResponseBean> ApiName(@Body JsonObject jsonBody);
}
如果你有一个表单数据参数，那么在下面添加
@Headers("Content-Type: application/x-www-form-urlencoded")
其他方式的表单数据参数检查此链接
5)make JsonObject作为参数传递给body
private JsonObject ApiJsonMap() {
JsonObject gsonObject = new JsonObject();
try {
JSONObject jsonObj_ = new JSONObject();
jsonObj_.put("key", "value");
jsonObj_.put("key", "value");
jsonObj_.put("key", "value");
JsonParser jsonParser = new JsonParser();
gsonObject = (JsonObject) jsonParser.parse(jsonObj_.toString());
//print parameter
Log.e("MY gson.JSON: ", "AS PARAMETER " + gsonObject);
} catch (JSONException e) {
e.printStackTrace();
}
return gsonObject;
}
6)像这样调用Api
private void ApiCallMethod() {
try {
if (CommonUtils.isConnectingToInternet(MyActivity.this)) {
final ProgressDialog dialog;
dialog = new ProgressDialog(MyActivity.this);
dialog.setMessage("Loading...");
dialog.setCanceledOnTouchOutside(false);
dialog.show();
Call<ResponseBean> registerCall = ApiHandler.getApiService().ApiName(ApiJsonMap());
registerCall.enqueue(new retrofit2.Callback<ResponseBean>() {
@Override
public void onResponse(Call<ResponseBean> registerCall, retrofit2.Response<ResponseBean> response) {
try {
//print respone
Log.e(" Full json gson => ", new Gson().toJson(response));
JSONObject jsonObj = new JSONObject(new Gson().toJson(response).toString());
Log.e(" responce => ", jsonObj.getJSONObject("body").toString());
if (response.isSuccessful()) {
dialog.dismiss();
int success = response.body().getSuccess();
if (success == 1) {
} else if (success == 0) {
}
} else {
dialog.dismiss();
}
} catch (Exception e) {
e.printStackTrace();
try {
Log.e("Tag", "error=" + e.toString());
dialog.dismiss();
} catch (Resources.NotFoundException e1) {
e1.printStackTrace();
}
}
}
@Override
public void onFailure(Call<ResponseBean> call, Throwable t) {
try {
Log.e("Tag", "error" + t.toString());
dialog.dismiss();
} catch (Resources.NotFoundException e) {
e.printStackTrace();
}
}
});
} else {
Log.e("Tag", "error= Alert no internet");
}
} catch (Resources.NotFoundException e) {
e.printStackTrace();
}
}
