我試圖根據我發送的數據從服務器獲取響應，我能夠從服務器獲得響應，但服務器似乎沒有接收到 getParams() 中的值。 String url = "myUrl"; RequestQueue queue = Volley.newRequestQueue(getContext()); schoolContributeList = new ArrayList<>(); JsonArrayRequest jsonRequest = new JsonArrayRequest(Request.Method.POST, url, new Response.Listener<JSONArray>() { @Override public void onResponse(JSONArray ja) { try { for (int i = 0;i < ja.length();i++) { JSONObject school = ja.getJSONObject(i); String schoolId = school.getString("id"); String schoolName = school.getString("name"); universityItem schoolItem = new universityItem(schoolName, schoolId); Toast.makeText(getContext(),schoolId , Toast.LENGTH_SHORT).show(); schoolContributeList.add(schoolItem); schoolContributeAdapter = new universityAdapter(getContext(), schoolContributeList); schoolContributeSpinner.setAdapter(schoolContributeAdapter); } } catch (JSONException e) { e.printStackTrace(); } } }, new Response.ErrorListener() { @Override public void onErrorResponse(VolleyError error) { Log.i("error", error.toString()); Toast.makeText(getContext(), "no response", Toast.LENGTH_SHORT).show(); } })
1 回答
溫溫醬
TA貢獻1752條經驗 獲得超4個贊
在這種情況下，我建議的方法是在代碼的 URL 中傳遞參數并刪除 getParams() 方法。因此，您修改后的代碼如下所示；
String url = "myUrl";
RequestQueue queue = Volley.newRequestQueue(getContext());
schoolContributeList = new ArrayList<>();
JsonArrayRequest jsonRequest = new JsonArrayRequest(Request.Method.POST, url+"?schoolUniversity="+selectedUniversityItem.getmUniversityValue()+"&key="+key,
new Response.Listener<JSONArray>() {
@Override
public void onResponse(JSONArray ja) {
try {
for (int i = 0;i < ja.length();i++) {
JSONObject school = ja.getJSONObject(i);
String schoolId = school.getString("id");
String schoolName = school.getString("name");
universityItem schoolItem = new universityItem(schoolName, schoolId);
Toast.makeText(getContext(),schoolId , Toast.LENGTH_SHORT).show();
schoolContributeList.add(schoolItem);
schoolContributeAdapter = new universityAdapter(getContext(), schoolContributeList);
schoolContributeSpinner.setAdapter(schoolContributeAdapter);
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error)
{
Log.i("error", error.toString());
Toast.makeText(getContext(), "no response", Toast.LENGTH_SHORT).show();
}
}){
};
queue.add(jsonRequest);
希望這會奏效。祝你好運 ：）
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