通過 volley android 將數組發送到 php

Question

我正在嘗試編寫一個小代碼，通過 volley android 將數組從我的 android 應用程序發送到 php 文件，它將在文本文件中寫入數組，這是我的數組

>String[] title = {
                    "Abundance",
                    "Anxiety",
                    "Bruxism",
                    "Discipline",
                    "Drug Addiction"
            };

我的截擊代碼：

>UploadRequest registerRequest = new UploadRequest(title, responseListener);
            RequestQueue volleyQueue = Volley.newRequestQueue(MainActivity.this);
            DiskBasedCache cache = new DiskBasedCache(getCacheDir(), 64 * 2048 * 2048);
            volleyQueue = new RequestQueue(cache, new BasicNetwork(new HurlStack()));
            volleyQueue.start();
            volleyQueue.add(registerRequest);

---

public class UploadRequest extends StringRequest {
private static final String REGISTER_REQUEST_URL ="http://192.168.2.115/app/Register.php";
private Map<String, String> params;

public UploadRequest(String[] names, Response.Listener<String> listener) {
    super(Method.POST, REGISTER_REQUEST_URL, listener, null);
    params = new HashMap<>();
    
    params.put("names", String.valueOf(names));//i think my problem is here!

}

@Override
public Map<String, String> getParams() {
    return params;
}

}

$value = $_POST['names'];

$fp = fopen('Log.txt', 'w');

fwrite($fp, $value);

fclose($fp);

[Ljava.lang.String;@41c509a8

所以我的問題是數組出錯了或者我沒有聲明數組！ 所以請我如何聲明它。

謝謝大家

Answer 1

您需要發送數組值，而不是參考哈希碼，因此請使用Arrays.toString

 params.put("names", Arrays.toString(names));

---

    String[] title = {
            "Abundance",
            "Anxiety",
            "Bruxism",
            "Discipline",
            "Drug Addiction"
    };
    System.out.println(Arrays.toString(title));
    System.out.println(String.valueOf(title));

輸出 ：

[Abundance, Anxiety, Bruxism, Discipline, Drug Addiction]
[Ljava.lang.String;@14eac69

選項 2。

您可以創建JSONARRAY並將值放入JSONARRAY ，然后使用jsonarray.toString()

    JSONArray array = new JSONArray();
    array.put("Abundance");
    array.put("Anxiety");
    array.put("Bruxism");
    System.out.println(array.toString());

輸出 ：

["Abundance","Anxiety","Bruxism"]

Answer 2

params.put("names", String.valueOf(names));//i think my problem is here!

的確。 最好嘗試類似：

params.put("names[0]", names[0]);
params.put("names[1]", names[1]);
params.put("names[2]", names[2]);
.... of course you would make a loop for it

或者：

params.put("names0", names[0]);
params.put("names1", names[1]);
params.put("names2", names[2]);
......

對於這兩種情況，您的 php 腳本會有所不同。