Question

当我从服务器胖数据时，它不工作： 这是我的ApiClass类

public class ApiClient {
    public static final String BASE_URl="https://simplifiedcoding.net/demos/";
    public  static ApiInterface apiInterface= null;


    public static ApiInterface getApiClient(){
        if (apiInterface == null){

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

            apiInterface = retrofit.create(ApiInterface.class); // this line is good
        }
        return apiInterface;
    }
    public interface ApiInterface {
        @GET("marvel/")
        Call<data> getcontex();

    }

}

这是我的主要课程

 Call<data> listcall = ApiClient.getApiClient().getcontex();
            listcall.enqueue(new Callback<data>() {
                @Override
                public void onResponse(Call<data> call, Response<data> response) {
                    data d=response.body();
                    Toast.makeText(MainActivity.this, "Done ", Toast.LENGTH_SHORT).show();

                }

                @Override
                public void onFailure(Call<data> call, Throwable t) {
                    Toast.makeText(MainActivity.this, "Faield", Toast.LENGTH_SHORT).show();

                }
            });

我严重无法理解什么是错的。你能帮帮我们吗？

Answer 1

我假设你的api用一组对象做出响应，你想得到一个回调。

@GET('your url')
void getData(Callback<ArrayList<Data>> callback);

Answer 2

您有一个json数组而不是json对象，请尝试更改您的代码

Call<List<data>> listcall = ApiClient.getApiClient().getcontex();
        listcall.enqueue(new Callback<List<data>>() {
            @Override
            public void onResponse(Call<List<data>> call, Response<List<data>> response) {
                data d=response.body();
                Toast.makeText(MainActivity.this, "Done ", Toast.LENGTH_SHORT).show();

            }

            @Override
            public void onFailure(Call<List<data>> call, Throwable t) {
                Toast.makeText(MainActivity.this, "Faield", Toast.LENGTH_SHORT).show();

            }
        });

并在您的界面中

 public interface ApiInterface {
    @GET("marvel/")
    Call<List<data>> getcontex();

}

Answer 3

试试这个： -

这是你的模型类

<强> Data.java

public class Data {

    @SerializedName("name")
    @Expose
    private String name;
    @SerializedName("realname")
    @Expose
    private String realname;
    @SerializedName("team")
    @Expose
    private String team;
    @SerializedName("firstappearance")
    @Expose
    private String firstappearance;
    @SerializedName("createdby")
    @Expose
    private String createdby;
    @SerializedName("publisher")
    @Expose
    private String publisher;
    @SerializedName("imageurl")
    @Expose
    private String imageurl;
    @SerializedName("bio")
    @Expose
    private String bio;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getRealname() {
        return realname;
    }

    public void setRealname(String realname) {
        this.realname = realname;
    }

    public String getTeam() {
        return team;
    }

    public void setTeam(String team) {
        this.team = team;
    }

    public String getFirstappearance() {
        return firstappearance;
    }

    public void setFirstappearance(String firstappearance) {
        this.firstappearance = firstappearance;
    }

    public String getCreatedby() {
        return createdby;
    }

    public void setCreatedby(String createdby) {
        this.createdby = createdby;
    }

    public String getPublisher() {
        return publisher;
    }

    public void setPublisher(String publisher) {
        this.publisher = publisher;
    }

    public String getImageurl() {
        return imageurl;
    }

    public void setImageurl(String imageurl) {
        this.imageurl = imageurl;
    }

    public String getBio() {
        return bio;
    }

    public void setBio(String bio) {
        this.bio = bio;
    }

}

和api服务的接口

<强> ApiService.java

public interface ApiService {
    @GET("marvel/")
    Call<List<Data>> getHero();
}

这是你的MainActivity.java

<强> MainActivity.java

public class MainActivity extends AppCompatActivity {

    String BaseUrl = "https://simplifiedcoding.net/demos/";
    List<Data> data = new ArrayList<>();

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

        ApiService retrofitService = new Retrofit.Builder()
                .baseUrl(BaseUrl)
                .addConverterFactory(GsonConverterFactory.create())
                .build().create(ApiService.class);

        Call<List<Data>> call = retrofitService.getHero();

        call.enqueue(new Callback<List<Data>>() {
            @Override
            public void onResponse(@NonNull Call<List<Data>> call, @NonNull Response<List<Data>> response) {
                data = response.body();
                for (int i = 0; i < data.size(); i++) {
                    //you can get your all data like name,bio,realname,team etc...
                     Toast.makeText(MainActivity.this, "Done", Toast.LENGTH_SHORT).show();
                }
            }

            @Override
            public void onFailure(@NonNull Call<List<Data>> call, @NonNull Throwable t) {
                   Toast.makeText(MainActivity.this, "Faield", Toast.LENGTH_SHORT).show();

            }
        });

    }
}

最后不要忘记在AndroidManifest.xml中添加互联网权限

Answer 4

这里我已经为您的问题编写了工作示例。我发现问题在于解析没有键的arraylist。请参阅以下代码段：

您的模型类是

public class data {
@SerializedName("name") @Expose private String name;
@SerializedName("realname") @Expose private String realname;
@SerializedName("team") @Expose private String team;
@SerializedName("firstappearance") @Expose private String firstappearance;
@SerializedName("createdby") @Expose private String createdby;
@SerializedName("publisher") @Expose private String publisher;
@SerializedName("imageurl") @Expose private String imageurl;
@SerializedName("bio") @Expose private String bio;
public String getName() {
    return name;
}

public void setName(String name) {
    this.name = name;
}

public String getRealname() {
    return realname;
}

public void setRealname(String realname) {
    this.realname = realname;
}

public String getTeam() {
    return team;
}

public void setTeam(String team) {
    this.team = team;
}

public String getFirstappearance() {
    return firstappearance;
}

public void setFirstappearance(String firstappearance) {
    this.firstappearance = firstappearance;
}

public String getCreatedby() {
    return createdby;
}

public void setCreatedby(String createdby) {
    this.createdby = createdby;
}

public String getPublisher() {
    return publisher;
}

public void setPublisher(String publisher) {
    this.publisher = publisher;
}

public String getImageurl() {
    return imageurl;
}

public void setImageurl(String imageurl) {
    this.imageurl = imageurl;
}

public String getBio() {
    return bio;
}

public void setBio(String bio) {
    this.bio = bio;
}

}

然后您的webservice调用者类是：

公共类WebServiceCaller {

private static WebServiceApiInterface webApiInterface;
public static final String BASE_URl = "https://simplifiedcoding.net/demos/";

public static WebServiceApiInterface getClient() {
    if (webApiInterface == null) {
        HttpLoggingInterceptor logging = new HttpLoggingInterceptor();
        logging.setLevel(HttpLoggingInterceptor.Level.BODY);
        OkHttpClient okclient = new OkHttpClient.Builder().addInterceptor(logging).build();
        Gson gson = new GsonBuilder()
            .setDateFormat("yyyy-MM-dd'T'HH:mm:ssZ")
            .create();


        Retrofit client = new Retrofit.Builder() // .client(okClient)
            .baseUrl(BASE_URl)
            .client(okclient.newBuilder().connectTimeout(10, TimeUnit.MINUTES).readTimeout(100, TimeUnit.SECONDS).writeTimeout(100, TimeUnit.SECONDS).addInterceptor(logging).build())
            .addConverterFactory(GsonConverterFactory.create(gson))
            .build();
        webApiInterface = client.create(WebServiceApiInterface.class);
    }
    return webApiInterface;
}

public interface WebServiceApiInterface {

    @GET("marvel/")
    Call < ArrayList < data >> getcontex();


}

}

现在在主要活动中调用如下所示的服务。

public void getData（）{try {

    final ProgressDialog dialog = ProgressDialog.show(this, "", "loading...");

    WebServiceCaller.WebServiceApiInterface service = WebServiceCaller.getClient();
    // Call<data> call = service.getStatusMenu("6a10c6fd0a021e8b5beda2948790d9f7FYnx", "com.r3app.wthrcomplete");

    Call<ArrayList<data>> call = service.getcontex();
    call.enqueue(new Callback<ArrayList<data>>() {

        @Override
        public void onResponse(Call<ArrayList<data>> call, Response<ArrayList<data>> response) {
            dialog.dismiss();
            if (response.isSuccessful()) {

                ArrayList<data> result = response.body();
                Toast.makeText(ScrollingActivity.this, "Done "+result.get(0).getName(), Toast.LENGTH_SHORT).show();

            } else {
                dialog.dismiss();

            }
        }

        @Override
        public void onFailure(Call<ArrayList<data>> call, Throwable t) {
            t.printStackTrace();
            Toast.makeText(ScrollingActivity.this, " "+t.getMessage(), Toast.LENGTH_SHORT).show();
            Log.v("onFailure", "onFailure");
            dialog.dismiss();

        }
    });


} catch (Exception e) {
    e.printStackTrace();
}

}

我试图在不调用时使用Retrofit .... onResponses（）获得响应

4 个答案: