JSON 转含有泛型属性的对象

/**
 * @Describe:
 * @Author: chenfan
 * @Date: 2019/5/9 19:15
 */

@Data
/**
 * 含有泛型属性的对象
 */
class OneGeneric<E>{
    E e;
    String ss;
}

@Data
/**
 * 泛型对象
 */
class KeyMessage{
    String kk;
}

public class JsonTest {

    public static void main(String[] args) {

        // {"e": {"kk":"qwe"},"ss": "ssValue"}
        String data = "{\"e\": {\"kk\":\"qwe\"},\"ss\": \"ssValue\"}";
        Gson gson = new Gson();
        //  OneGeneric : 外层对象类型    KeyMessage ：嵌套的泛型类型
        OneGeneric one = gson.fromJson(data, new TypeToken<OneGeneric<KeyMessage>>() {}.getType());
        System.out.println(one);
    }

}

public class JsonTest {

    public static void main(String[] args) {
        // {"ss": "ssValue","list":[{"dd":"dd1"},{"dd":"dd2"}]}
        String data = "{\"ss\": \"ssValue\",\"list\":[{\"dd\":\"dd1\"},{\"dd\":\"dd2\"}]}";
        Gson gson = new Gson();
        OneGeneric grandMessage = gson.fromJson(data, new TypeToken<OneGeneric<Generic>>() {}.getType());
        System.out.println(grandMessage);
    }
}

/**
 * 含有泛型属性的对象
 */
@Data
class OneGeneric<E>{
    List<E> list;
    String ss;
}

@Data
class Generic{
    String dd;
}

/**
 * @Describe:
 * @Author: chenfan
 * @Date: 2019/5/9 19:15
 */

@Data
/**
 * 含有多个泛型属性的对象
 */
class GrandMessage<K,V>{

    K key;
    V value;
}

/**
 * 泛型对象
 */
@Data
class KeyMessage{
    String kk;
}

/**
 * 泛型对象
 */
@Data
class ValueMessage{
    String vv;
}

/**
 * 测试类
 */
public class JsonTest {

    public static void main(String[] args) {
        // {"key": {"kk":"qwe"},"value": {"vv":"asd"}}
        String data = "{\"key\": {\"kk\":\"qwe\"},\"value\": {\"vv\":\"asd\"}}";
        Gson gson = new Gson();
        GrandMessage grandMessage = gson.fromJson(data, new TypeToken<GrandMessage<KeyMessage,ValueMessage>>() {}.getType());
        System.out.println(grandMessage);
    }
}

@Data
class GrandMessage<K>{

    K k;
    String msg;
}
@Data
class OneGeneric<E>{
    E e;
    String one;
}

@Data
class Generic{
    String dd;
}

/**
 * 测试类
 */
public class JsonTest {

    public static void main(String[] args) {
        // {"msg":"lili","k":{"one":"111","e":{"dd":"dddd"}}}
        String data = "{\"msg\":\"lili\",\"k\":{\"one\":\"111\",\"e\":{\"dd\":\"dddd\"}}}";
        Gson gson = new Gson();
        // 转换时的泛型顺序一定要严格按照对象的嵌套顺序
        GrandMessage grandMessage = gson.fromJson(data, new TypeToken<GrandMessage<OneGeneric<Generic>>>() {}.getType());
        System.out.println(grandMessage);
    }
}