Android 改装post请求返回405错误

我不太会使用翻新库。我需要写一个方法，将注册用户

Api如下所示：

职位 它包含4个字段

fio-字符串

电子邮件字符串

电话串

密码字符串

响应示例：

{
    "result": {
        "code": 200,
        "token": "fcac1a3b62cb51374123de565dc12e16"
    }
}

这是我的客户端类：

package com.example.bydlokoder.mobigeartest.activities.utils;

import retrofit.Callback;
import retrofit.http.Body;
import retrofit.http.POST;

public class BlaBlaClient {
    public static final String API_URL = "http://blablabla.com/";

    public interface Service {
        @POST("/user")
        void createUser(@Body User user, Callback<Result> callback);
    }
}

它是应用于创建请求的用户类：

public class User {

    public User(String fio, String email, String phone, String password) {
        this.fio = fio;
        this.email = email;
        this.phone = phone;
        this.password = password;
    }

    private String fio;
    private String email;
    private String phone;
    private String password;

    public String getFio() {
        return fio;
    }

    public String getEmail() {
        return email;
    }

    public String getPhone() {
        return phone;
    }

    public String getPassword() {
        return password;
    }
}

为什么要用Body注释“user”？web API需要JSON序列化输入还是URL编码？

public class User {

    public User(String fio, String email, String phone, String password) {
        this.fio = fio;
        this.email = email;
        this.phone = phone;
        this.password = password;
    }

    private String fio;
    private String email;
    private String phone;
    private String password;

    public String getFio() {
        return fio;
    }

    public String getEmail() {
        return email;
    }

    public String getPhone() {
        return phone;
    }

    public String getPassword() {
        return password;
    }
}