如何解决此错误java.lang.IllegalStateException:预期为BEGIN_ARRAY，但在行1列2路径$处为BEGIN_OBJECT

问题描述

我正在使用Android实现一个宁静的客户端.我有API URL，令牌等.我使用Retrofit 2库实现此应用程序，都是正确的.但是JSON值无法正确显示.我尝试了几种方法来解决此问题，但找不到任何正确的解决方案.

I'm implementing a restful client using Android. I have API URL, token, etc. I implement this application using Retrofit 2 library, all are correct. But the JSON values do not display properly. I've tried several ways to solved this problem but can't find any correct solution for this.

这是我的代码:

JSON字符串

{"deposits":[{"id":806638,"amount":100,"status":"Canceled","reason":null},{"id":814436,"amount":1,"status":"Approved","reason":null},{"id":814452,"amount":1,"status":"Approved","reason":null},{"id":814505,"amount":1,"status":"Approved","reason":null}]}

主要活动

void getRetrofitArray() {

    final String API_BASE_URL = "https://www.example.com/";
    final String credentials = "Bearer dfdfdfdlcdvksbdjsbdlvffdfddfdfdfjloiulfjuktj92p0JTFwJuFHlObIlWn8feQ_WA";
            OkHttpClient okHttpClient = new OkHttpClient.Builder()
            .addInterceptor(new okhttp3.Interceptor() {
                @Override
                public Response intercept(okhttp3.Interceptor.Chain chain) throws IOException {

                    Request request = chain.request().newBuilder()
                            .addHeader("Authorization", credentials)
                            .addHeader("Accept", "application/json").build();

                    return chain.proceed(request);

                }
            }).addInterceptor(new HttpLoggingInterceptor().setLevel(HttpLoggingInterceptor.Level.BODY))
            .readTimeout(60, TimeUnit.SECONDS)
            .connectTimeout(60, TimeUnit.SECONDS)
            .build();

    Retrofit retrofit = new Retrofit.Builder()
            .baseUrl(API_BASE_URL)
            .client(okHttpClient)
            .addConverterFactory(GsonConverterFactory.create())
            .build();


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



    Call <List <Users>>call = service.getDeposits();
    Log.d("onResponse", "There is an xlllllllllllllllllllllkkkkkkklll");
    call.enqueue(new Callback<List<Users>>(){
        @Override
        public void onResponse(Call<List<Users>>call, retrofit2.Response<List<Users>>response) {

            try {

              // Users   UserData = response.body();
                List <Users> UserData =response.body();

                //String jsonString= response.body().toString();
               // Type listType = new TypeToken<List<Users>>(){}.getType();

                                      for (int i = 0; i < UserData.size(); i++) {

                     text_marks_1.setText("StudentMarks  : " +UserData.get(i).getDeposits());


                   // else if (i == 2) {
                        //text_id_2.setText("StudentId  :  " + UserData.get(i).getName());
                   //
               }
            } catch (Exception e) {
                Log.d("onResponse", "There is an error");
                e.printStackTrace();
            }
        }

        @Override
        public void onFailure(Call<List<Users>>call, Throwable t) {
            Log.d("onResponse", "There is an error");
            t.printStackTrace();
        }
    });

}

用户类别

public class Users {
    @SerializedName("deposits")
    @Expose
    private List<Deposit> deposits = new ArrayList<Deposit>();

    /**
     *
     * @return
     * The deposits
     *
     */
    public List<Deposit> getDeposits() {
        return deposits;
    }

    /**
     *
     * @param deposits
     * The deposits
     */
    public void setDeposits(List<Deposit> deposits) {
        this.deposits = deposits;
    }

}

存款课程

public class Deposit {

    @SerializedName("id")
    @Expose
    private Integer id;
    @SerializedName("amount")

    @Expose
    private Integer amount;
    @SerializedName("status")
    @Expose
    private String status;
    @SerializedName("reason")
    @Expose
    private Object reason;

    /**
     *
     * @return
     * The id
     */
    public Integer getId() {
        return id;
    }

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

    /**
     *
     * @return
     * The amount
     */
    public Integer getAmount() {
        return amount;
    }

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

    /**
     *
     * @return
     * The status
     */
    public String getStatus() {
        return status;
    }

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

    /**
     *
     * @return
     * The reason
     */
    public Object getReason() {
        return reason;
    }

    /**
     *
     * @param reason
     * The reason
     */
    public void setReason(Object reason) {
        this.reason = reason;
    }

}

界面类

public interface LoginApi {

    //@GET("/media/webservice/JsonReturn.php HTTP/1.1")
    // Call<List<User>> getUserDetails();


    @GET("api/deposits")
    Call <List<Users>> getDeposits();
}

已编辑...新的存款类别

edited......new Deposit class

public class Deposit implements Serializable {

@SerializedName("deposits")
@Expose
private List<Deposit> deposits ;   

public List<Deposit> getDeposits() {
    return deposits;
}

public void setDeposits(List<Deposit> deposits) {
    this.deposits = deposits;
}

@SerializedName("id")
@Expose
private Integer id;
@SerializedName("amount")
@Expose
private Integer amount;
@SerializedName("status")
@Expose
private String status;
@SerializedName("reason")
@Expose
private Object reason;

public Integer getId() {
    return id;
}


public void setId(Integer id) {
    this.id = id;
}


public Integer getAmount() {
    return amount;
}


public void setAmount(Integer amount) {
    this.amount = amount;
}


public String getStatus() {
    return status;
}


public void setStatus(String status) {
    this.status = status;
}

public Object getReason() {
    return reason;
}


public void setReason(Object reason) {
    this.reason = reason;
}}

推荐答案

我认为您的api接口类应为:

i think your api interface class should be :

@GET("api/deposits")
Call<User> getDeposits();

以及您的活动中:

Call<User> call = service.getDeposits();
call.enqueue(new Callback<User>(){
    @Override
    public void onResponse(Call<User>call, retrofit2.Response<User>response) {

            List<Deposit> = response.getDeposits();

           }

    }

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