如何在Android中获得volley JSONArray
我是Volley JSONArray的新人。我无法在onErrorResponse. setText in txtResponse，因为我总是在收到这个错误。
这是我的Logcat
......com.example.simplevolley.simplevolley W/System.err: org.json.JSONException: Value [{"com_branch_id":7，"com_branch_comId":1，"com_branch_name":"JT Temerloh"，"com_branch_manager":"Tn Hj Ahmad Bin Hj Mohd Sidin"，“com_branch_addr”：“Hj.58，Jln (Jln Masjid Abu Bakar)"，"com_branch_region":"Temerloh"，"com_branch_state":"PAHANG"，“com_branch_country”："com_branch_poscode":"28000"，"com_branch_email":"tmlh@juaratravel.com.my"，"com_branch_licence":null，"com_branch_phoneNum":"09-2965625"，"com_branch_fax":null，"com_branch_fb":null，"com_branch_ig":null}，{"com_branch_id":9，"com_branch_comId":1，"com_branch_name":"JT Nibong Tebal"，"com_branch_manager":"Pejabat Penang"，“com_branch_addr”：“10号，Tingkat Atas，Jln Pekaka 1，Tmn Pekaka，"com_branch_region":"Nibong Tebal"，"com_branch_state":"PULAU PINANG"，”com_branch_country“：”马来西亚"，"com_branch_poscode":"14300"，"com_branch_email":"pen@juaratravel.com.my"，"com_branch_licence":null，"com_branch_phoneNum":"05-7171877"，"com_branch_fax":"057161877"，"com_branch_fb":null，“com_branch_ig”：null}.
我想读一下这段JSON行，但是因为它以JSONArray开头，所以我很困惑。
{
"res": true,
"datas": [
{
"com_branch_id": 7,
"com_branch_comId": 1,
"com_branch_name": "JT Temerloh",
"com_branch_manager": "Tn Hj Ahmad Bin Hj Mohd Sidin",
"com_branch_addr": "No.58, Jalan Ibrahim (Jln Masjid Abu Bakar)",
"com_branch_region": "Temerloh",
"com_branch_state": "PAHANG",
"com_branch_country": "MALAYSIA",
"com_branch_poscode": "28000",
"com_branch_email": "tmlh@juaratravel.com.my",
"com_branch_licence": null,
"com_branch_phoneNum": "09-2965625",
"com_branch_fax": null,
"com_branch_fb": null,
"com_branch_ig": null
},
{
"com_branch_id": 9,
"com_branch_comId": 1,
"com_branch_name": "JT Nibong Tebal",
"com_branch_manager": "Pejabat Penang",
"com_branch_addr": "No. 10, Tingkat Atas, Jln Pekaka 1, Tmn Pekaka,",
"com_branch_region": "Nibong Tebal",
"com_branch_state": "PULAU PINANG",
"com_branch_country": "MALAYSIA",
"com_branch_poscode": "14300",
"com_branch_email": "pen@juaratravel.com.my",
"com_branch_licence": null,
"com_branch_phoneNum": "05-7171877",
"com_branch_fax": "057161877",
"com_branch_fb": null,
"com_branch_ig": null
},]}我需要获得所有数据的值。这是我的密码
private void makeJsonArrayRequest() {
showpDialog();
JsonArrayRequest req = new JsonArrayRequest(urlJsonArry,
new Response.Listener<JSONArray>() {
@Override
public void onResponse(JSONArray response) {
Log.d("res", response.toString());
try {
jsonResponse = "";
for (int i = 0; i < response.length(); i++) {
JSONObject branchi = (JSONObject) response.get(i);
JSONObject branch = branchi.getJSONObject("datas");
Integer com_branch_id = Integer.valueOf(branch.getString("com_branch_id"));
Integer com_branch_comId = Integer.valueOf(branch.getString("com_branch_comId"));
String com_branch_name = branch.getString("com_branch_name");
String com_branch_manager = branch.getString("com_branch_manager");
String com_branch_addr = branch.getString("com_branch_addr");
String com_branch_region = branch.getString("com_branch_region");
String com_branch_state = branch.getString("com_branch_state");
String com_branch_country = branch.getString("com_branch_country");
String com_branch_poscode = branch.getString("com_branch_poscode");
String com_branch_email = branch.getString("com_branch_email");
String com_branch_licence = branch.getString("com_branch_licence");
String com_branch_phoneNum = branch.getString("com_branch_phoneNum");
String com_branch_fax = branch.getString("datas.com_branch_fax");
String com_branch_fb = branch.getString("datas.com_branch_fb");
String com_branch_ig = branch.getString("datas.com_branch_ig");
jsonResponse = "";
jsonResponse += "Branch name: " + com_branch_id + "\n\n";
jsonResponse += "Branch manager: " + com_branch_comId + "\n\n";
jsonResponse += "Branch state: " + com_branch_name + "\n\n";
jsonResponse += "Branch state: " + com_branch_manager + "\n\n";
jsonResponse += "Branch state: " + com_branch_addr + "\n\n";
jsonResponse += "Branch state: " + com_branch_region + "\n\n";
jsonResponse += "Branch state: " + com_branch_state + "\n\n";
jsonResponse += "Branch state: " + com_branch_country + "\n\n";
jsonResponse += "Branch state: " + com_branch_poscode + "\n\n";
jsonResponse += "Branch state: " + com_branch_email + "\n\n";
jsonResponse += "Branch state: " + com_branch_licence + "\n\n";
jsonResponse += "Branch state: " + com_branch_phoneNum + "\n\n";
jsonResponse += "Branch state: " + com_branch_fax + "\n\n";
jsonResponse += "Branch state: " + com_branch_fb + "\n\n";
jsonResponse += "Branch state: " + com_branch_ig + "\n\n";
}
txtResponse.setText(jsonResponse);
} catch (JSONException e) {
e.printStackTrace();
Toast.makeText(getApplicationContext(),
"res" + e.getMessage(),
Toast.LENGTH_LONG).show();
txtResponse.setText(e.getMessage());
}
hidepDialog();
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
VolleyLog.d(TAG, "res" + error.getMessage());
Toast.makeText(getApplicationContext(),
error.getMessage(), Toast.LENGTH_LONG).show();
Log.d("onErrorResponse", error.getMessage());
hidepDialog();
}
});
// Adding request to request queue
AppController.getInstance().addToRequestQueue(req);
}我试图遵循其他的解决方案，但不幸的是，我失败了，陷入了困境。
回答 3
Stack Overflow用户
发布于 2018-05-17 04:14:43
试试这个..。
JSONObject json = new JSONObject(response);
JSONArray jsonarray = json.getJSONArray("datas");
for (int i = 0; i < jsonarray.length(); i++) {
JSONObject c = jsonarray.getJSONObject(i);
//here you get by json key
String id = c.getString("com_branch_id");
}Stack Overflow用户
发布于 2018-05-17 02:04:59
1)您的Json不是数组(它以{隐含一个对象json开始)。使用JsonObjectRequest。
2)通过迭代而不是在响应中获取元素，您可以使用jackson2将响应映射到POJO。
3)可以使用jsonschema2pojo创建POJO类
Stack Overflow用户
发布于 2018-05-17 02:36:50
JsonArrayRequest将以JSONArray的形式给出响应。但你的反应不是JSONArray。它的JSONObject和那个JSONObject包含JSONArray。
在您的情况下使用JsonObjectRequest。
您可以使用葛森将响应转换为Java。
创建一个与您的响应格式匹配的Java类。而不是将您的响应转换为java对象。
public void onResponse(JSONObject response) {
String message = "";
if (response != null) {
message = response.toString();
Post post = null;
Gson gson = new Gson();
post = gson.fromJson(response.toString(), Post.class);
} else {
message = "Response is null";
}
}https://stackoverflow.com/questions/50382071
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