使用改造发送带有参数的发布请求

Question

我尝试使用Retrofit库在Android上使用API​​时失败,但在使用POSTMAN时我可以看到预期的结果.

邮递员设定

• api url(基地+控制器)

• HTTP方法设置为POST

• 点击了from-data或x-www-form-urlencoded

• 然后我在键/值字段上传递两个参数.

ANDROID改装设置

@POST("/GetDetailWithMonthWithCode")
void getLandingPageReport(@Query("code") String code,
                          @Query("monthact") String monthact,
                          Callback<LandingPageReport> cb);

@FormUrlEncoded
@POST("/GetDetailWithMonthWithCode")
void getLandingPageReport(@Field("code") String code,
                          @Field("monthact") String monthact,
                          Callback<LandingPageReport> cb);

这些选项都不起作用.但结果是{}.

UPDATE

使用标准HttpClient(和HttpPost)类的相同设置工作正常.

HttpClient client = new DefaultHttpClient();
HttpPost post = new HttpPost(url);

List<NameValuePair> urlParameters = new ArrayList<NameValuePair>();
urlParameters.add(new BasicNameValuePair("code", "testcode"));
urlParameters.add(new BasicNameValuePair("monthact", "feb-2015"));

post.setEntity(new UrlEncodedFormEntity(urlParameters));

HttpResponse response = client.execute(post);

为什么我不能做这个请求并在Retrofit中获得正确的响应？

更新2

@POST("/GetDetailWithMonthWithCode")
void getLandingPageReport(@Query("code") String code,
                          @Query("monthact") String monthact,
                          Callback<List<LandingPageReport>> cb);

@FormUrlEncoded
@POST("/GetDetailWithMonthWithCode")
void getLandingPageReport(@Field("code") String code,
                          @Field("monthact") String monthact,
                          Callback<List<LandingPageReport>>> cb);

玩完之后我觉得我找到了问题的根源.我已经更新了我的改装代码以便接收List<LandingPageReport>.但现在发生这种错误

retrofit.RetrofitError:com.google.gson.JsonSyntaxException:java.lang.IllegalStateException:预期BEGIN_ARRAY但在第1行第2行路径$ BEGIN_OBJECT $

原因是我消耗了2个api(webapi和wcf).我所有的其他json响应都是对象数组.[{},{}]但是在这个电话中我收到了这个

{
  "GetDetailWithMonthWithCodeResult": [
     {
        "code": "test",
        "field1": "test",
     }
   ]
}

但我仍然无法解析响应.

Answer 1

的build.gradle

      compile 'com.google.code.gson:gson:2.6.2'

      compile 'com.squareup.retrofit2:retrofit:2.1.0'// compulsory

      compile 'com.squareup.retrofit2:converter-gson:2.1.0' //for retrofit conversion

Answer 2

这是一个简单的解决方案,我们不需要使用JSON

public interface RegisterAPI {
@FormUrlEncoded
@POST("/RetrofitExample/insert.php")
public void insertUser(
        @Field("name") String name,
        @Field("username") String username,
        @Field("password") String password,
        @Field("email") String email,
        Callback<Response> callback);
}

发送数据的方法

private void insertUser(){
    //Here we will handle the http request to insert user to mysql db
    //Creating a RestAdapter
    RestAdapter adapter = new RestAdapter.Builder()
            .setEndpoint(ROOT_URL) //Setting the Root URL
            .build(); //Finally building the adapter

    //Creating object for our interface
    RegisterAPI api = adapter.create(RegisterAPI.class);

    //Defining the method insertuser of our interface
    api.insertUser(

            //Passing the values by getting it from editTexts
            editTextName.getText().toString(),
            editTextUsername.getText().toString(),
            editTextPassword.getText().toString(),
            editTextEmail.getText().toString(),

            //Creating an anonymous callback
            new Callback<Response>() {
                @Override
                public void success(Response result, Response response) {
                    //On success we will read the server's output using bufferedreader
                    //Creating a bufferedreader object
                    BufferedReader reader = null;

                    //An string to store output from the server
                    String output = "";

                    try {
                        //Initializing buffered reader
                        reader = new BufferedReader(new InputStreamReader(result.getBody().in()));

                        //Reading the output in the string
                        output = reader.readLine();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }

                    //Displaying the output as a toast
                    Toast.makeText(MainActivity.this, output, Toast.LENGTH_LONG).show();
                }

                @Override
                public void failure(RetrofitError error) {
                    //If any error occured displaying the error as toast
                    Toast.makeText(MainActivity.this, error.toString(),Toast.LENGTH_LONG).show();
                }
            }
    );
}

现在我们可以使用php aur获取任何其他服务器端脚本的发布请求.

来源Android Retrofit教程

Answer 3

我找到了解决方案.这个问题在我的课程结构中是一个问题.所以我像下面的样本一样更新它们.

public class LandingPageReport {

    private ArrayList<LandingPageReportItem> GetDetailWithMonthWithCodeResult;

    // + Getter Setter methods
}

public class LandingPageReportItem {

    private String code;

    private String field1;

    // + Getter Setter methods
}

然后我使用这种改造配置

@POST("/GetDetailWithMonthWithCode")
void getLandingPageReport(@Field("code") String code,
                          @Field("monthact") String monthact,
                          Callback<LandingPageReport> cb);

Answer 4

您应该为此创建一个界面，就像它运行良好一样

public interface Service {
    @FormUrlEncoded
    @POST("v1/EmergencyRequirement.php/?op=addPatient")
    Call<Result> addPerson(@Field("BloodGroup") String bloodgroup,
           @Field("Address") String Address,
           @Field("City") String city, @Field("ContactNumber") String  contactnumber, 
           @Field("PatientName") String name, 
           @Field("Time") String Time, @Field("DonatedBy") String donar);
}

或者您可以访问http://teachmeandroidhub.blogspot.com/2018/08/post-data-using-retrofit-in-android.html

您可以访问https://github.com/rajkumu12/GetandPostUsingRatrofit