Java 如何打印 json 对象和数组值？
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How can i print json objects and array values?
提问by tajMahal
In the Result String i have entire data for that i'm parsing ,i need to print Current Conditions inside values.
在结果字符串中，我有我正在解析的完整数据，我需要在值中打印当前条件。
current_condition": [ {"cloudcover": "75", "humidity": "71", "observation_time": "06:55 AM", "precipMM": "0.6", "pressure": "1009", "temp_C": "32", "temp_F": "90", "visibility": "10", "weatherCode": "116", "weatherDesc": [ {"value": "Partly Cloudy" } ], "weatherIconUrl": [ {"value": "http:\/\/cdn.worldweatheronline.net\/images\/wsymbols01_png_64\/wsymbol_0002_sunny_intervals.png" } ], "winddir16Point": "S", "winddirDegree": "170", "windspeedKmph": "9", "windspeedMiles": "6" } ]
This is my json array ,here i need cloudcover ,weatherDescarrays inside values,how can i print those values.
Here what i did is
这是我的 json 数组，这里我需要 cloudcover，weatherDesc值中的数组，我如何打印这些值。这里我做的是
JSONParser parser = new JSONParser();
Object obj1 = parser.parse(Result);
JSONObject jobj = (JSONObject) obj1;
JSONObject dataResult = (JSONObject) jobj.get("data");
JSONArray current_condition = (JSONArray) dataResult.get("current_condition");
//out.println(current_condition);
for (int i = 0; i < current_condition.size(); i++) {
}
inside for loop how to repeat and print values ,could anybody help me,thanks in advance.
在 for 循环内如何重复和打印值，有人可以帮助我，提前致谢。
采纳答案by Prior99
Assuming that you are using org.json, I would iterate over the array as follows:
假设您使用的是 org.json，我将按如下方式遍历数组：
public static void main(String[] args) {
String json = "{ \"data\": { \"current_condition\": [ {\"cloudcover\": \"75\", \"humidity\": \"71\", \"observation_time\": \"06:55 AM\", \"precipMM\": \"0.6\", \"pressure\": \"1009\", \"temp_C\": \"32\", \"temp_F\": \"90\", \"visibility\": \"10\", \"weatherCode\": \"116\", \"weatherDesc\": [ {\"value\": \"Partly Cloudy\" } ], \"weatherIconUrl\": [ {\"value\": \"http:\/\/cdn.worldweatheronline.net\/images\/wsymbols01_png_64\/wsymbol_0002_su??nny_intervals.png\" } ], \"winddir16Point\": \"S\", \"winddirDegree\": \"170\", \"windspeedKmph\": \"9\", \"windspeedMiles\": \"6\" } ]}}";
try {
JSONObject jObj = new JSONObject(json);
JSONObject dataResult = jObj.getJSONObject("data");
JSONArray jArr = (JSONArray) dataResult.getJSONArray("current_condition");
for(int i = 0; i < jArr.length();i++) {
JSONObject innerObj = jArr.getJSONObject(i);
for(Iterator it = innerObj.keys(); it.hasNext(); ) {
String key = (String)it.next();
System.out.println(key + ":" + innerObj.get(key));
}
}
}
catch (JSONException e) {
e.printStackTrace();
}
}
回答by Namikaze Badri
Are you using json simple?, if yes, then try :
您使用的是简单的 json 吗？如果是，请尝试：
for (JSONObject object : current_condition) {
System.out.println("cloudcover : " + object.get("cloudcover"));
System.out.println("humidity : " + object.get("humidity"));
}
