阅读在Android Studio中的JSON数据
问题描述:
我建立在使用JSON接取到我的PostgreSQL的Android Studio中的应用,在那里是我的数据,我收到的数据是这样的:阅读在Android Studio中的JSON数据
[
{"id":"1","title":"12 May to 30 Jun"},
{"id":"2","title":"3 Jun to 20 Jun"}
]
我试图找到每其中,如何使用的JSONObject或JSONArray为“解锁”的数据传给其他变量
答
一段时间努力,努力,我发现了一种
String finalJson = buffer.toString();
try {
JSONArray parentArray = new JSONArray(finalJson);
int count = 0;
int[] id = new int[parentArray.length()];
String[] title = new String[parentArray.length()];
StringBuffer finalBufferedData = new StringBuffer();
while (count < parentArray.length())
{
JSONObject finalObject = parentArray.getJSONObject(count);
id[count] = finalObject.getInt("id");
title[count] = finalObject.getString("title");
finalBufferedData.append(id[count] + " - " + title[count] + "\n");
count++;
}
return finalBufferedData.toString();
} catch (JSONException e) {
e.printStackTrace();
}
这样我就能够GE之后从PostgreSQL的t为2行显示它(以后将增加它的应用程序源码,因此并不需要总是在我的PostgreSQL检查)
答
这里是工作代码:
public void parseJson() {
// Response from API call
String response = "[{\"id\":\"1\",\"title\":\"12 May to 30 Jun\"},\n" +
"{\"id\":\"2\",\"title\":\"3 Jun to 20 Jun\"}]";
try {
JSONArray jsonArray = new JSONArray(response);
// Get all jsonObject from jsonArray
for (int i = 0; i < jsonArray.length(); i++)
{
JSONObject jsonObject = jsonArray.getJSONObject(i);
String id = null, title = null;
// Id
if (jsonObject.has("id") && !jsonObject.isNull("id")) {
id = jsonObject.getString("id");
}
// Title
if (jsonObject.has("title") && !jsonObject.isNull("title")) {
title = jsonObject.getString("title");
}
Log.d("SUCCESS", "JSON Object: " + "\nId: " + id
+ "\nTitle: " + title);
}
} catch (JSONException e) {
Log.e("FAILED", "Json parsing error: " + e.getMessage());
}
}
OUTPUT:
D/SUCCESS: JSON Object:
Id: 1
Title: 12 May to 30 Jun
D/SUCCESS: JSON Object:
Id: 2
Title: 3 Jun to 20 Jun
https://*.com/questions/25582199/sending-arraylist-from-android-to-php-script-using-json – Jamil