改装抛出错误预计BEGIN_ARRAY但是BEGIN_OBJECT

Question

嗨,我是Retrofit库的新手,我在解析一些json时遇到问题.我已经在Stackoverflow上看了一些其他的解决方案,但我的问题没有太多运气.我试图让一个简单的Web服务工作.任何建议将不胜感激..

Json文件

{"employees":[
{"firstName":"John", "lastName":"Doe"}, 
{"firstName":"Anna", "lastName":"Smith"},
{"firstName":"Peter", "lastName":"Jones"}
]}

请求方法

public void requestEmployeeData(String uri){
        RestAdapter adapter = new RestAdapter.Builder().setEndpoint(ENDPOINT).build();
        EmployeesAPI employeesAPI =adapter.create(EmployeesAPI.class);
        employeesAPI.getEmployees(new Callback<List<Employees.employeesclass>>() {
            @Override
            public void success(List<Employees.employeesclass> employees, Response response) {
                List<String> names = new ArrayList<String>();
                Log.v("nas", "The Employees Webservice Success" + response);
            }

            @Override
            public void failure(RetrofitError retrofitError) {
                Log.v("nas", "The Employees Webservice Failed " + retrofitError);
            }
        });
    }

Employees.java

public class Employees {
// List<String> listOfStrings = new ArrayList<String>();
@SerializedName(value="employees")
public List<Employees> employees;

public void setEmployees(List<Employees> employees) {
    this.employees = employees;

}

public static class employeesclass {
    String firstName;
    String lastName;


    @Override
    public String toString() {
        return (firstName + " " + lastName);

    }
}

}

EmployeesAPI.java

public interface EmployeesAPI {
@GET("/get_names.json")
public void getEmployees(Callback<List<Employees.employeesclass>> response);
}

我得到的错误是

The Employees Webservice Failed retrofit.RetrofitError: com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected BEGIN_ARRAY but was BEGIN_OBJECT at line 1 column 2 path $

我理解错误是说数据是一个对象,它应该从一个数组开始,但我不能解决它..谢谢

Answer 1

你是混音Employees和employeesclass课程.尝试使用此代替:

public class Employees {

    @SerializedName(value="employees")
    public List<employeesclass> employees;

    public void setEmployees(List<employeesclass> employees) {
        this.employees = employees;

    }

    // employeesclass definition

}

然后相应地更改您的界面和requestEmployeeData方法

public interface EmployeesAPI {
    @GET("/get_names.json")
    public void getEmployees(Callback<Employees> response);
}