我有一个应用程序,我想从PHP web服务器获取json数据到
android手机.我所拥有的是一个网址,并点击该网址给我json数据
{ “物品”：[{ “纬度”： “420”,“经度”： “421”}]}.但我想在我的 Android手机中检索这个json格式,并从json格式获取纬度和经度的值.
{ “物品”：[{ “纬度”： “420”,“经度”： “421”}]}.但我想在我的 Android手机中检索这个json格式,并从json格式获取纬度和经度的值.
我们怎么能在Android手机上得到它？
提前致谢..
首先进行URL连接
String parsedString = "";
try {
URL url = new URL(yourURL);
URLConnection conn = url.openConnection();
HttpURLConnection httpConn = (HttpURLConnection) conn;
httpConn.setAllowUserInteraction(false);
httpConn.setInstanceFollowRedirects(true);
httpConn.setRequestMethod("GET");
httpConn.connect();
InputStream is = httpConn.getInputStream();
parsedString = convertinputStreamToString(is);
} catch (Exception e) {
e.printStackTrace();
}
JSON字符串
{
"result": "success","countryCodeList":
[
{"countryCode":"00","countryName":"World Wide"},{"countryCode":"kr","countryName":"Korea"}
]
}
下面我将获取国家/地区详细信息
JSONObject json = new JSONObject(jsonstring);
JSONArray nameArray = json.names();
JSONArray valArray = json.toJSONArray(nameArray);
JSONArray valArray1 = valArray.getJSONArray(1);
valArray1.toString().replace("[","");
valArray1.toString().replace("]","");
int len = valArray1.length();
for (int i = 0; i < valArray1.length(); i++) {
Country country = new Country();
JSONObject arr = valArray1.getJSONObject(i);
country.setCountryCode(arr.getString("countryCode"));
country.setCountryName(arr.getString("countryName"));
arrCountries.add(country);
}
public static String convertinputStreamToString(InputStream ists)
throws IOException {
if (ists != null) {
StringBuilder sb = new StringBuilder();
String line;
try {
BufferedReader r1 = new BufferedReader(new InputStreamReader(
ists,"UTF-8"));
while ((line = r1.readLine()) != null) {
sb.append(line).append("\n");
}
} finally {
ists.close();
}
return sb.toString();
} else {
return "";
}
}
