[英]How to pass ArrayList<string> into BasicNameValuePair
我遇到BasicNameValuePair問題。 我想將ArrayList傳遞給BasicNameValuePair。 通過NameValuePair,我想將此arrayList發布到Php文件。 但是我遇到一個錯誤。 請幫幫我。 謝謝。
這是我的Android代碼:
protected String doInBackground(String... params) {
InputStream inputStream = null;
String result = null;
Intent in = getIntent();
String city = in.getStringExtra(("city"));
ArrayList<String> category = in.getStringArrayListExtra("category"); **//Here i am passing multiple value of category.**
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
nameValuePairs.add(new BasicNameValuePair("city", city));
nameValuePairs.add(new BasicNameValuePair("category", category)); **//Here error is coming(BasicNameValuePair cannot applied to <string, java.util.ArrayList<java.lang.String>)**
DefaultHttpClient httpClient = new DefaultHttpClient(new BasicHttpParams());
HttpPost httppost = new HttpPost("http://10.0.2.2/qsearch.php");
try {
httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
HttpResponse response = httpClient.execute(httppost);
HttpEntity entity = response.getEntity();
inputStream = entity.getContent();
}
catch(Exception e){
e.printStackTrace();
}
try{
BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream, "utf-8"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
result = sb.toString();
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if (inputStream != null) inputStream.close();
} catch (Exception squish) {
}
return result;
}
}
@Override
protected void onPostExecute(String result){
myJSON=result;
showList();
}
}
GetDataJSON g=new GetDataJSON();
g.execute();
這里的類別是一個ArrayList而不是一個字符串。
嘗試替換此行:
nameValuePairs.add(new BasicNameValuePair("category", category));
有了這個:
for (int i=0 ;i< category.size();i++) {
nameValuePairs.add(new BasicNameValuePair("category[]", category.get(i)));
}
您可能需要根據服務器將key
"category"
替換為"category[]"
。
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