HttpURLConnection 网络请求超时后要怎么再次请求操作

[aptx14]

网络请求超时后要怎么再次请求操作


/**
* 向指定 URL 发送POST方法的请求
*
* @param url
* 发送请求的 URL
* @param param
* 请求参数，请求参数应该是 name1=value1&name2=value2 的形式。
* @return 所代表远程资源的响应结果
* @throws Exception
*/
public static String doPost(final String url, final String param)
{
PrintWriter out = null;
BufferedReader in = null;
String result = "";
try
{
URL realUrl = new URL(url);
// 打开和URL之间的连接
HttpURLConnection conn = (HttpURLConnection) realUrl
.openConnection();
// 设置通用的请求属性
//conn.setRequestProperty("accept", "*/*");
conn.setRequestProperty("connection", "Keep-Alive");
conn.setRequestProperty("host", MyUrl.ip);
conn.setRequestProperty("Referer", "http://"+ MyUrl.ip+"/");
conn.setRequestMethod("POST");
conn.setRequestProperty("Content-Type",
"application/json");
conn.setRequestProperty("ticket",User.ticket );
conn.setRequestProperty("charset", "utf-8");
conn.setUseCaches(false);
// 发送POST请求必须设置如下两行
conn.setDoOutput(true);
conn.setDoInput(true);
conn.setReadTimeout(TIMEOUT_IN_MILLIONS);
conn.setConnectTimeout(TIMEOUT_IN_MILLIONS);
System.out.println(conn.getResponseCode());
if (param != null && !param.trim().equals(""))
{
// 获取URLConnection对象对应的输出流
out = new PrintWriter(conn.getOutputStream());
// 发送请求参数
out.print(param);
// flush输出流的缓冲
out.flush();
}
// 定义BufferedReader输入流来读取URL的响应
in = new BufferedReader(
new InputStreamReader(conn.getInputStream()));
String line;
while ((line = in.readLine()) != null)
{
result += line;
}
} catch (Exception e)
{
//在这里我要怎么重新发送请求，如果再次失败提示网络繁忙

e.printStackTrace();
JSONObject object=new JSONObject();
try {
object.put("errorcode", 100000);
object.put("errormsg", "网络请求超时！");
} catch (JSONException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}

return object.toString();


// System.out.println(e);//.error(e);
}
// 使用finally块来关闭输出流、输入流
finally
{
try
{
if (out != null)
{
out.close();
}
if (in != null)
{
in.close();
}
} catch (IOException ex)
{
ex.printStackTrace();
}
}
Log.i("TAG", result);
//System.out.println("获取到数据："+result);
return result;
}