Json的泛型T解析

开发中,返回的数据格式基本都是message+code+data模式,如登录接口返回数据:

 {
      "message": "登录成功", 
      "code": "100", 
      "data": [
    {
        "sex": "女", 
        "phone": "15528883251", 
        "area": "成都", 
        "signName": "二哈", 
        "age": "18", 
        "userIcon": "https://f10.baidu.com/it/u=3661269061,116126203&fm=72", 
        "realName": "樱井莉亚", 
        "userInfoID": 9
    }
]}

但是,不同接口返回的data都是不一样的,不可能每次都写带code和message的实体类,所以这个时候需要泛型了!网上关于json泛型解析的教程眼花缭乱,有些代码行数都让我瑟瑟发抖!!!自己总结一篇,遛马游泳~!

第一步:首先建立泛型接收实体类:

public class BaseResponseBean<T> {
public String message;
public String code;
public T data;

public String getMessage() {
    return message;
}

public void setMessage(String message) {
    this.message = message;
}

public String getCode() {
    return code;
}

public void setCode(String code) {
    this.code = code;
}

public T getData() {
    return data;
}

public void setData(T data) {
    this.data = data;
}}

第二步:根据data中的数据类型创建类

public class LoginUser {
private String sex;
private String  phone;
private String area;
private String signName;
private int age;
private String userIcon;
private String realName;
private Long userInfoID;

public String getSex() {
    return sex;
}

public void setSex(String sex) {
    this.sex = sex;
}

public String getPhone() {
    return phone;
}

public void setPhone(String phone) {
    this.phone = phone;
}

public String getArea() {
    return area;
}

public void setArea(String area) {
    this.area = area;
}

public String getSignName() {
    return signName;
}

public void setSignName(String signName) {
    this.signName = signName;
}

public int getAge() {
    return age;
}

public void setAge(int age) {
    this.age = age;
}

public String getUserIcon() {
    return userIcon;
}

public void setUserIcon(String userIcon) {
    this.userIcon = userIcon;
}

public String getRealName() {
    return realName;
}

public void setRealName(String realName) {
    this.realName = realName;
}

public Long getUserInfoID() {
    return userInfoID;
}

public void setUserInfoID(Long userInfoID) {
    this.userInfoID = userInfoID;
}}

第三步:使用方式:

Type jsonType = new TypeToken<BaseResponseBean<LoginUser>>() {}.getType();

BaseResponseBean<LoginUser> bean = new Gson().fromJson(response, jsonType);

response为需要解析的json字符串,而bean.getData()就是为LoginUser的实例对象.

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