MVC调用返回 502

ajax postman

IIS 调用一个接口返回 502 - Web server received an invalid response while acting as a gateway or proxy server.

public ActionResult  ExecuteThingsOne()
{
if (Monitor.TryEnter(objInLock))
{
try
{
// 准备数据（耗时约10秒）
......
// POST 同步调用接口（耗时约60秒）
......
return Content(new Result {Success = true }.ToJson());
}
catch (Exception ex)
{
return Content(new Result {Success = false}.ToJson());
}
finally
{
Monitor.Exit(objInLock);
}
}
else
{
return Content(new Result{Success = false }.ToJson());
}
}

回答

你的请求是通过反向代理server到达IIS MVC程序的吧