HttpURLConnection 断开连接在 Android 中不起作用
来自 HttpURLConnection 的方法 disconnect 似乎无法正常工作。 如果我执行以下代码：
url = new URL("http:// ...");
connection = (HttpURLConnection) url.openConnection ();
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
connection.setUseCaches(false);
connection.setDoInput(true);
connection.setDoOutput(true);
connection.connect();
// Some code
connection.disconnect();
connection.setDoInput(false); // -> IllegalStateException
当我调用方法 setDoInput 时，我得到一个 IllegalStateException。异常说：
已连接
The method disconnect from HttpURLConnection seems not to work properly.
If I execute the following code:
url = new URL("http:// ...");
connection = (HttpURLConnection) url.openConnection ();
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
connection.setUseCaches(false);
connection.setDoInput(true);
connection.setDoOutput(true);
connection.connect();
// Some code
connection.disconnect();
connection.setDoInput(false); // -> IllegalStateException
I get an IllegalStateException when I call the method setDoInput. The exception says:
Already connected
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听起来您正在尝试重用该连接？即在与服务器断开连接后更改请求属性，准备建立另一个连接。
如果是这种情况，则只需创建一个新的 HttpURLConnection 对象即可。
It sounds like you're trying to reuse the connection? i.e. altering the request properties after you've disconnected from the server, ready to make another connection.
If that is the case, then just create a new
HttpURLConnectionobject.