Question

我想在一个键中发送多个值，例如sendTo [] -string数组和值分隔的值，如abcd @ gmail.com，pqrs @ gmail.com。

我尝试使用字符串构建器，使用逗号分隔附加所有值，然后使用键在哈希映射中添加构建器。

像这样：

 StringBuilder emailbuilder = new StringBuilder();
                    for (String mail : mEmailList) {

                        emailbuilder.append(mail+",");
                        i++;
                    }

    data.put("send_to[]", emailbuilder.toString());

所以它导致hashmap为abcd @ gmail.com，pqrs @ gmail.com， - 像这样的字符串被添加为关键字send_to []的值。

后来，数据发送的类型是x-www-form-urlencoded，所以我将数据转换为该格式。

要转换的功能：

 private String getDataString(HashMap<String, String> params) throws UnsupportedEncodingException {
    StringBuilder result = new StringBuilder();
    boolean first = true;
    for (Map.Entry<String, String> entry : params.entrySet()) {
        if (first)
            first = false;
        else
            result.append("&");
        result.append(URLEncoder.encode(entry.getKey(), "UTF-8"));
        result.append("=");
        result.append(URLEncoder.encode(entry.getValue(), "UTF-8"));
    }
    return result.toString();
}

但是，转换后它也会转换值。 send_to []键值变为--- &send_to%5B%5D=realdammy%40hotmail.com%2Csiddhijambhale%40gmail.com%2C

它将括号和逗号转换为％格式。我需要发送数据，如--- send_to key和value abcd @ gmail.com，pqrs @ gmail.com

我怎样才能做到这一点？请帮忙谢谢......

编辑：运行请求的功能。

public String sendPostRequest(String data) {

    try {

        URL url = new URL(api);
        HttpURLConnection con = (HttpURLConnection) url.openConnection();
        con.setRequestMethod("POST");
        con.setRequestProperty("content-type", "application/x-www-form-urlencoded");
        con.setDoOutput(true);
        con.setDoInput(true);
        OutputStreamWriter writer = new OutputStreamWriter(con.getOutputStream());

        try {
            writer.write(data);
        } catch (Exception e) {
            Log.e("Exception111", e.toString());
        }

        writer.close();

        int responseCode = con.getResponseCode();
        if (responseCode == HttpURLConnection.HTTP_OK || responseCode == HttpURLConnection.HTTP_CREATED) {
            StringBuilder sb = new StringBuilder();
            BufferedReader reader = new BufferedReader(new InputStreamReader(con.getInputStream()));
            String line = "";
            while ((line = reader.readLine()) != null) {
                sb.append(line);
            }
            reader.close();
            Log.d("ServerResponse", new String(sb));
            String output = new String(sb);
            return output;
        } else {
            Log.e("Exception", "" + responseCode);
        }
    }
    catch(IOException e)
    {
        Log.e("Exception", "" + e.toString());
    }
    return null;
}

Answer 1

当您在GET请求中发送值时，您无法实现的目标。无论如何，这些值将被编码为％表格，以便与GET请求一起发送。只有在POST请求中发送值时才能执行此操作。

要在当前上下文中回答，您需要在后端执行URLDecode以获取该表单中的值。

这是非常正常的事情，可能甚至不需要任何额外的后端编程。您应该轻松收到相同的private String getDataString(HashMap<String, String> params) throws UnsupportedEncodingException { StringBuilder result = new StringBuilder(); boolean first = true; for (Map.Entry<String, String> entry : params.entrySet()) { if (first) first = false; else result.append("\n"); result.append(entry.getKey()); result.append(":"); result.append(entry.getValue()); } return result.toString(); }

让我知道这是否有效......

编辑1：

通常我们会像Volley这样的库使用这些东西..

但要使用HttpURLConnection执行此操作，请使用以下方法准备数据字符串

data.put("sent_to", TextUtils.join(",",mEmailList));

使用以下方法将电子邮件添加到数据

xbook = xlsxwriter.Workbook('abcd.xlsx')
xsheet1 = xbook.add_worksheet('img_reshape')
xsheet2 = xbook.add_worksheet('column_sum')
xsheet3 = xbook.add_worksheet('row_sum')

for col,array in enumerate (dataset):
    for row,value in enumerate (array):
    xsheet1.write(row, col, value)
for col,array in enumerate (column_sum):
    for row,value in enumerate (array):
    xsheet2.write(row, col, value)
for col,array in enumerate (row_sum):
    for row,value in enumerate (array):
    xsheet3.write(row, col, value)
xbook.close()

让我发布...

Answer 2

你可以使用凌空https://github.com/google/volley。

String tag_json_obj = "json_obj_req";

String url = "your url";

ProgressDialog pDialog = new ProgressDialog(this);
pDialog.setMessage("Loading...");
pDialog.show();     

        JsonObjectRequest jsonObjReq = new JsonObjectRequest(Method.GET,
                url, null,
                new Response.Listener<JSONObject>() {

                    @Override
                    public void onResponse(JSONObject response) {
                        Log.d(TAG, response.toString());
                        pDialog.hide();
                    }
                }, new Response.ErrorListener() {

                    @Override
                    public void onErrorResponse(VolleyError error) {
                        VolleyLog.d(TAG, "Error: " + error.getMessage());
                        pDialog.hide();
                    }
                }) {

            @Override
            protected Map<String, String> getParams() {
                Map<String, String> params = new HashMap<String, String>();

                params.put("send", "abc@gmail.info,abc1@gmail.info");
                params.put("password", "password123");

                return params;
            }

        };

// Adding request to request queue
AppController.getInstance().addToRequestQueue(jsonObjReq, tag_json_obj);

如何在url中以x-www-form-urlencoded格式发送字符串数组？

2 个答案: