public async Task <ActionResult> Signup([FromForm] Account account)
{
AccountContext accountContext = HttpContext.RequestServices.GetService(typeof(dotNet期末项目.Models.AccountContext)) as AccountContext;
//如果该用户名已被注册
if (await accountContext.SelectOne(account.Username) != null)
{
return(BadRequest("用户名已存在"));
}
/*
* 【说明】此处用 await 执行 addAccount 函数时，不会同步执行后面的 if(result) 语句，而是说执行该请求的线程能同时执行其他的而请求。
*/
bool result = await accountContext.AddAcount(account);
if (result)
{
//创建默认头像
string source = Path.Combine(_hostingEnvironment.WebRootPath, "img", "avator.jpg");
string dest = Path.Combine(_hostingEnvironment.WebRootPath, "avator", account.Username + ".jpg");
System.IO.File.Copy(source, dest, true);
return(Ok("成功注册账号"));
}
return(StatusCode(500, "数据库错误"));
}