在textview android中显示json数组不工作

Question

我的JSON数组不工作，我不知道为什么。在日志中，它只显示以下内容：[]，而不显示其他内容。我不会在文本视图中使用它。

这是我的代码：

private void account(){
// get from the server
String url = "my url";
JsonObjectRequest request = new JsonObjectRequest(Request.Method.POST, url, null,
new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
try {
JSONArray jsonArray = response.getJSONArray("uaccount");
Log.i("conso", jsonArray.toString());
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject employee = jsonArray.getJSONObject(i);
Log.i("con", employee.toString());
//Log.i("con", name+ number+status+ age+ city+ town+ gender+weight +height);
String city = employee.getString("city");
String town = employee.getString("town");
txt_City.setText(""+city);
txt_Town.append(town);
//Log.i("co", city + town);
}
} catch (JSONException e) {
Log.i("console.logs e:", e.toString());
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.i("console.logs error:", error.toString());
error.printStackTrace();
}
});
requestQueue = Volley.newRequestQueue(getActivity());
requestQueue.add(request);

}

Answer 1

我用id:尝试了这个代码

在oncreate:中

uAccount("3");

方法

private void uAccount(final String id){
// get from server
String url = "my url";
JsonObjectRequest request = new JsonObjectRequest(Request.Method.POST, url, null,
new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
try {
JSONArray jsonArray = response.getJSONArray("uaccount");
Log.i("conso", jsonArray.toString());
for (int i = 0; i < jsonArray.length(); i++) {
JSONObject employee = jsonArray.getJSONObject(i);
Log.i("con", employee.toString());
//Log.i("con", name+ number+status+ age+ city+ town+ gender+weight +height);
String city = employee.getString("city");
String town = employee.getString("town");
txt_City.setText(""+city);
txt_Town.append(town);
//Log.i("co", city + town);
}
} catch (JSONException e) {
Log.i("console.logs e:", e.toString());
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.i("console.logs error:", error.toString());
error.printStackTrace();
}
}){
@Override
protected Map<String, String> getParams() throws AuthFailureError {
Map<String, String> params = new HashMap<>();
params.put("id",id);
return params;
}
};
requestQueue = Volley.newRequestQueue(getActivity());
requestQueue.add(request);

}