fastjson的jsonObject-jsonArray处理
需要引包：
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
pom.xml需要引入：
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.44</version>
</dependency>
<artifactId>fastjson</artifactId>
<version>1.2.44</version>
</dependency>
数据格式
//JSONObject的数据是用 { } 来表示的
{ "id":"123", "name":"张三", "age":"11"}
//JSONArray是由JSONObject组成的数组 用【】和{}来表示
[{ "id":"123", "name":"张三", "age":"11"},{ "id":"321", "name":"李四", "age":"21"}]
获取jsonArray中每一个JsonObject里的键对应的内容
String jsonstr = "[{\"id\":\"123\",\"name\":\"张三\",\"age\":\"11\"},{\"id\":\"321\", \"name\":\"李四\",\"age\":\"21\"}]";
JSONArray jsonArray = JSONArray.parseArray(jsonstr);
for (int i=0;i<jsonArray.size();i++) {//会循环两次
JSONObject jsonObject = jsonArray.getJSONObject(i);
String id = jsonObject.getString("id");//123,321
String name = jsonObject.getString("name");//张三,李四
String age = jsonObject.getString("age");//11,21
}相关推荐
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