Problem
HttpURLConnection不支持 JavaScript，但需要的 cookie 是使用 JavaScript 生成的。
你的来电
String reqUrl = "http://zxccvvv.cuccfree.com/send_data.php";
URL url = new URL(reqUrl);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
失败，因为 cookie__test不见了。
Fix
乍一看 JavaScript 源代码，cookie 对于给定的 url 似乎是恒定的，因此设置一个 cookie 可能就足够了常量cookie:
String cookie = "__test=2bf7c15501c0ec57f8e41cb84871a69c";
URL url = new URL(reqUrl);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setConnectTimeout(7000);
conn.setRequestMethod("GET");
conn.setRequestProperty("Cookie", cookie);
选择：使用 WebView 我们可以获取 cookie，所以这是更好的方法，因为如果 cookie 发生变化并且没有太多时间延迟，它不会中断：
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
getCookie();
if(cookie!=null) {
new GetContacts().execute();
}
}
private void getCookie(){
CookieManager.setAcceptFileSchemeCookies(true);
WebView wv = new WebView(getApplicationContext());
wv.getSettings().setJavaScriptEnabled(true);
wv.loadUrl(url);
cookie = CookieManager.getInstance().getCookie("zxccvvv.cuccfree.com");
}
并按照上面的示例进行设置：
conn.setRequestProperty("Cookie", cookie);
logcat 中的输出
Response from url: [{"0":"1","id":"1","1":"pertanyaan ke 1","ask":"pertanyaan ke 1"},{"0":"2","id":"2","1":"pertanyaan ke 2","ask":"pertanyaan ke 2"},{"0":"3","id":"3","1":"pertanyaan ke 3","ask":"pertanyaan ke 3"},{"0":"4","id":"4","1":"pertanyaan ke 4","ask":"pertanyaan ke 4"},{"0":"5","id":"5","1":"pertanyaan ke 5","ask":"pertanyaan ke 5"}]
