android - 使用Retrofit2在POST请求中发送JSON

我正在使用改进来集成我的web服务，我不知道如何使用post请求将json对象发送到服务器。我现在卡住了，这是我的代码：
活动：

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);


    Retrofit retrofit = new Retrofit.Builder().baseUrl(url).
            addConverterFactory(GsonConverterFactory.create()).build();

    PostInterface service = retrofit.create(PostInterface.class);

    JSONObject jsonObject = new JSONObject();
    try {
        jsonObject.put("email", "[email protected]");
        jsonObject.put("password", "1234");
    } catch (JSONException e) {
        e.printStackTrace();
    }
    final String result = jsonObject.toString();

}

后界面：

public interface PostInterface {

    @POST("User/DoctorLogin")
    Call<String> getStringScalar(@Body String body);
}

请求JSON:-

{
"email":"[email protected]",
"password":"1234"
}

响应JSON:-

{
  "error": false,
  "message": "User Login Successfully",
  "doctorid": 42,
  "active": true
}

最佳答案

在格雷德使用这些

compile 'com.squareup.retrofit2:retrofit:2.3.0'
compile 'com.squareup.retrofit2:converter-gson:2.3.0'
compile 'com.squareup.retrofit2:converter-scalars:2.3.0'

使用这两个pojo类……。
登录数据类

public class LoginData {

    private String email;
    private String password;

    public LoginData(String email, String password) {
        this.email = email;
        this.password = password;
    }

    /**
     *
     * @return
     * The email
     */
    public String getEmail() {
        return email;
    }

    /**
     *
     * @param email
     * The email
     */
    public void setEmail(String email) {
        this.email = email;
    }

    /**
     *
     * @return
     * The password
     */
    public String getPassword() {
        return password;
    }

    /**
     *
     * @param password
     * The password
     */
    public void setPassword(String password) {
        this.password = password;
    }

}

loginResult.Class类

public class LoginResult {

    private Boolean error;
    private String message;
    private Integer doctorid;
    private Boolean active;

    /**
     *
     * @return
     * The error
     */
    public Boolean getError() {
        return error;
    }

    /**
     *
     * @param error
     * The error
     */
    public void setError(Boolean error) {
        this.error = error;
    }

    /**
     *
     * @return
     * The message
     */
    public String getMessage() {
        return message;
    }

    /**
     *
     * @param message
     * The message
     */
    public void setMessage(String message) {
        this.message = message;
    }

    /**
     *
     * @return
     * The doctorid
     */
    public Integer getDoctorid() {
        return doctorid;
    }

    /**
     *
     * @param doctorid
     * The doctorid
     */
    public void setDoctorid(Integer doctorid) {
        this.doctorid = doctorid;
    }

    /**
     *
     * @return
     * The active
     */
    public Boolean getActive() {
        return active;
    }

    /**
     *
     * @param active
     * The active
     */
    public void setActive(Boolean active) {
        this.active = active;
    }

}

像这样使用api

public interface RetrofitInterface {
     @POST("User/DoctorLogin")
        Call<LoginResult> getStringScalar(@Body LoginData body);
}

像这样打电话…

Retrofit retrofit = new Retrofit.Builder()
            .baseUrl("Your domain URL here")
            .addConverterFactory(ScalarsConverterFactory.create())
            .addConverterFactory(GsonConverterFactory.create())
            .build();

       RetrofitInterface service = retrofit.create(RetrofitInterface .class);

 Call<LoginResult> call=service.getStringScalar(new LoginData(email,password));
    call.enqueue(new Callback<LoginResult>() {
                @Override
                public void onResponse(Call<LoginResult> call, Response<LoginResult> response) {
               //response.body() have your LoginResult fields and methods  (example you have to access error then try like this response.body().getError() )

              }

                @Override
                public void onFailure(Call<LoginResult> call, Throwable t) {
           //for getting error in network put here Toast, so get the error on network
                }
            });

编辑：
把这个放在success()里面…

if(response.body().getError()){
   Toast.makeText(getBaseContext(),response.body().getMessage(),Toast.LENGTH_SHORT).show();


}else {
          //response.body() have your LoginResult fields and methods  (example you have to access error then try like this response.body().getError() )
                String msg = response.body().getMessage();
                int docId = response.body().getDoctorid();
                boolean error = response.body().getError();

                boolean activie = response.body().getActive()();
}

注意：-总是使用pojo类，它删除了改造中的json数据解析。