jason字符串解析

ゝ一纸荒年。 2022-05-17 08:36 212阅读 0赞

public class TestJson \{  
public static void main(String\[\] args) \{  
//要解析的对象  
String json = “\{ ‘desc’: ‘OK’, ” +  
“‘status’: 1000, ” +  
“‘data’: \{ ‘wendu’: ‘20’,” +  
” ‘ganmao’: ‘相对于今天将会出现大幅度降温，易发生感冒，请注意适当增加衣服，加强自我防护避免感冒。’, ” +  
“‘forecast’: \[ \{ ‘fengxiang’: ‘北风’, ‘fengli’: ‘3-4级’, ‘high’: ‘高温 27℃’, ‘type’: ‘中雨’, ‘low’: ‘低温 19℃’, ‘date’: ‘6日星期五’ \}, ” +  
“\{ ‘fengxiang’: ‘北风’, ‘fengli’: ‘微风级’, ‘high’: ‘高温 23℃’, ‘type’: ‘大雨’, ‘low’: ‘低温 17℃’, ‘date’: ‘7日星期六’ \}, ” +  
“\{ ‘fengxiang’: ‘北风’, ‘fengli’: ‘微风级’, ‘high’: ‘高温 26℃’, ‘type’: ‘小雨’, ‘low’: ‘低温 17℃’, ‘date’: ‘8日星期天’ \}, ” +  
“\{ ‘fengxiang’: ‘南风’, ‘fengli’: ‘微风级’, ‘high’: ‘高温 27℃’, ‘type’: ‘多云’, ‘low’: ‘低温 15℃’, ‘date’: ‘9日星期一’ \},” +  
” \{ ‘fengxiang’: ‘南风’, ‘fengli’: ‘微风级’, ‘high’: ‘高温 29℃’, ‘type’: ‘多云’, ‘low’: ‘低温 16℃’, ‘date’: ‘10日星期二’ \} \], ” +  
“‘yesterday’: \{ ‘fl’: ‘微风’, ‘fx’: ‘北风’, ‘high’: ‘高温 33℃’, ‘type’: ‘阴’, ‘low’: ‘低温 22℃’, ‘date’: ‘5日星期四’ \},” +  
” ‘aqi’: ‘58’,” +  
” ‘city’: ‘成都’ \} \}”;

System.out.println("==================================================================================");
        //将解析的值存入对象之中
        Weather weather=new Weather();
        Data data=new Data();
        Forecast forecast=new Forecast();
        //将节点对象转换成Object对象
        JSONObject jsonObject1 = JSONObject.parseObject(json);
        //获取到data对象
        JSONObject data1 = jsonObject1.getJSONObject("data");
        //通过data对象获取到forecast数组
        JSONArray jsonArray = data1.getJSONArray("forecast");
        //遍历jsonArray数组，取出数组中的值
        for (int i = 0; i < jsonArray.size(); i++) {
            JSONObject object = (JSONObject) jsonArray.get(i);
            forecast.setFengxiang(object.getString("fengxiang"));
            forecast.setFengli(object.getString("fengli"));
            forecast.setHigh(object.getString("high"));
            forecast.setDate(object.getString("date"));
        }
        System.out.println("===================================================================================");
        //获取desc的值
        Object desc = jsonObject1.get("desc");
        System.out.println(desc);
        //获取ganmao的值
        Object ganmao = data1.get("ganmao");
        System.out.println(ganmao);
        //通过数组下标获取某个对象
        JSONObject jsonObject = (JSONObject) jsonArray.get(0);
        //通过key取到value值
        String type = jsonObject.getString("type");
        Object low = jsonObject.get("low");
        System.out.println(type);
        System.out.println(low);
    }

做为一个菜鸟，第一次发。不喜勿喷，有错忘大家指正……