JSON解析

json格式如下

{
    "report": {"id": 1,"name": "liu","age": 23,"sex": "男"},
    "reportInfo": [
                    {"id": 1,"name": "liu","age": 23,"sex": "男"},
                    {"id": 2,"name": "liu","age": 23,"sex": "男"},
                    {"id": 3,"name": "liu","age": 23,"sex": "男"},
                    {"id": 4,"name": "liu","age": 23,"sex": "男"}
                  ]
}

导入的jar包

import net.sf.json.JSONArray;
import net.sf.json.JSONObject;

代码编写如下

String Value = "{\"report\":{\"id\":\"0\",\"name\":\"hu\",\"age\":\"18\",\"sex\":\"男\"},\"web\":[{\"id\":\"1\",\"name\":\"liu\",\"age\":\"23\",\"sex\":\"女\"},{\"id\":\"2\",\"name\":\"wang\",\"age\":\"20\",\"sex\":\"男\"},{\"id\":\"3\",\"name\":\"li\",\"age\":\"23\",\"sex\":\"女\"},{\"id\":\"4\",\"name\":\"zhang\",\"age\":\"21\",\"sex\":\"男\"}]}";
    	
    	JSONObject  obj = JSONObject.fromObject(Value); //解析JSON字符串
        JSONObject report = obj.getJSONObject("report");
        String id = (String) report.get("id");
        String name = (String) report.get("name");
        String age = (String) report.get("age");
        String sex = (String) report.get("sex");
        System.out.println("id值是："+id+",name是："+name+",age是："+age+",sex是："+sex);
        JSONArray  arr = obj.getJSONArray("web");//接收JSON对象里的数组
        for (int i = 0; i < arr.size(); i++) {
		JSONObject temp = arr.getJSONObject(i);
		String ids = (String) temp.get("id");
	        String names = (String) temp.get("name");
	        String ages = (String) temp.get("age");
	        String sexs = (String) temp.get("sex");
	        System.out.println("ids值是："+ids+",names是："+names+",ages是："+ages+",sexs是："+sexs);
	}

json的格式有很多种，这里主要涉两种：对象、数组包含对象。

JSONObject对象形式，JSONArray数组形式。

欢迎大家一起讨论、学习！