[英]Data of json request with strange characters in volley request
我正在发出一个 Json 请求,我获取数据并将其放在列表视图中,但是我得到的一些字符串带有重音或“ç”,并且显示不正确。 例如,字符串是 'Bragança',我收到 'Bragança' 或 'à' 并得到 'Ã'。 如果我在浏览器中执行请求,则一切正常。 我的请求。
public void makeJsonArrayRequest() {
RequestQueue queue = AppController.getInstance().getRequestQueue();
queue.start();
JsonArrayRequest Req = new JsonArrayRequest(urlJsonObjUtilizadas,
new Response.Listener<JSONArray>() {
@Override
public void onResponse(JSONArray response) {
Log.d(TAG, response.toString());
// Parsing json
for (int i = 0; i < response.length(); i++) {
try {
JSONObject ementaObj = response.getJSONObject(i);
Ementa ementa = new Ementa();
ementa.setCantina(ementaObj.getString("cantina"));
ementa.setDescricao(ementaObj.getString("descricao"));
ementa.setEmenta(ementaObj.getString("ementa"));
ementa.setPreco(ementaObj.getInt("preco"));
ementaItems.add(ementa);
} catch (JSONException e) {
e.printStackTrace();
}
}
// notifying list adapter about data changes
adapter.notifyDataSetChanged();
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
VolleyLog.d(TAG, "Error: " + error.getMessage());
}
}) {
//**
// Passing some request headers
//*
@Override
public Map<String, String> getHeaders() {
HashMap<String, String> headers = new HashMap<String, String>();
headers.put("Content-Type", "application/json; charset=UTF-8");
return headers;
}
};
// Add the request to the RequestQueue.
AppController.getInstance().addToRequestQueue(Req);
}
请尝试使用此代码以 utf-8 编码发送和接收 JSON:
try {
URL url = new URL("your url");
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setDoOutput(true);
OutputStreamWriter writer = new OutputStreamWriter(
conn.getOutputStream(), "UTF-8");
String request = "your json";
writer.write(request);
writer.flush();
System.out.println("Code:" + conn.getResponseCode());
System.out.println("mess:" + conn.getResponseMessage());
String response = "";
BufferedReader reader = new BufferedReader(new InputStreamReader(
conn.getInputStream(), "UTF-8"));
String line;
while ((line = reader.readLine()) != null) {
response += line;
}
System.out.println(new String(response.getBytes(), "UTF8"));
writer.close();
reader.close();
} catch (MalformedURLException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
您应该将请求标头字符集添加到 UTF-8。 例如,如果您的请求将作为 json,您应该将此标头添加到请求中:
“内容类型”:“应用程序/json;utf-8”
我也使用 Volley,这种方式对我有用。
问候。
检查此示例,我正在使用这种方式,查看标题部分
public class Estratek_JSONString extends JsonRequest<String>{
Activity Act;
Priority priority;
public Estratek_JSONString(int m, String url, JSONObject params,
Listener<String> listener, ErrorListener errorListener,Activity act, Priority p) {
super(m,url,params.toString(),listener,errorListener);
this.Act=act;
this.priority=p;
}
public Estratek_JSONString(int m, String url,
Listener<String> listener, ErrorListener errorListener,Activity act, Priority p) {
// super constructor
//super(m,url,params.toString(),listener,errorListener);
super(m,url,null,listener,errorListener);
this.Act=act;
this.priority=p;
}
@Override
public Map<String, String> getHeaders() {
HashMap<String, String> headers = new HashMap<String, String>();
headers.put("Content-Type", "application/json; charset=utf-8");
headers.put("Authorization", "Bearer "+Tools.Get_string(Act.getApplicationContext(),Global_vars.Access_token));
return headers;
}
//it make posible send parameters into the body.
@Override
public Priority getPriority(){
return priority;
}
@Override
protected Response<String> parseNetworkResponse(NetworkResponse response) {
try {
String jsonString =
new String(response.data, HttpHeaderParser.parseCharset(response.headers));
return Response.success(new String(jsonString),
HttpHeaderParser.parseCacheHeaders(response));
} catch (UnsupportedEncodingException e) {
return Response.error(new ParseError(e));
}
}
}
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