JSON字符串解析

news2024/11/17 7:22:41

依赖

方法

示例

判断JSON是否合格

依赖

方法

JSON.parseObject()

JSON.parseArray()

示例

@Data
public class OrderVo {
    public String name;
    public Integer price;
    public Integer count;
}

JSON数据

{
   "name": "苹果手机",
   "price": 5000,
   "count": 2
}

根据类解析

public void analyzeJSON(String s){
    OrderVo order = JSON.parseObject(s, OrderVo.class);
    System.out.println(order);
}

直接解析

public static void analyzeJSON(String s){
    JSONObject jsonObject = JSON.parseObject(s);
    String name = jsonObject.getString("name");
    System.out.println(name);
}

数组类型的JSON数据

[{
   "name": "苹果手机",
   "price": 5000,
   "count": 2
}, {
   "name": "华为手机",
   "price": 4000,
   "count": 2
}, {
   "name": "小米手机 ",
   "price": 3000,
   "count": 2
}]

根据类解析

public void analyzeJSON(String s){
    List<OrderVo> orderlist = JSON.parseArray(s, OrderVo.class);
    for (OrderVo order : orderlist){
        System.out.println(order);
    }
}

直接解析

public void analyzeJSON(String s){
    JSONArray jsonArray = JSON.parseArray(s);
    for (int i=0;i<jsonArray.size();++i){
        JSONObject jsonObject = jsonArray.getJSONObject(i);
        String name = jsonObject.getString("name");
        System.out.println(name);
    }
}