在Asp.Net Core中增加上传文件的大小

问题描述：

当前，我正在使用Asp.Net Core，MVC6需要上传的文件大小不受限制.我已经搜索了它的解决方案，但仍然没有得到实际的答案.

Currently, I am working with Asp.Net Core and MVC6 need to upload file size unlimited. I have searched its solution but still not getting the actual answer.

我已经尝试过此链接

如果有人有任何想法，请帮助.

If anyone have any idea please help.

谢谢.

答

其他答案解决了IIS限制.但是，从 ASP.NET Core 2.0开始，Kestrel服务器也施加了自己的默认限制.

The other answers solve the IIS restriction. However, as of ASP.NET Core 2.0, Kestrel server also imposes its own default limits.

KestrelServerLimits.cs的Github

关于请求正文大小限制和解决方案的公告(在下面引用)

如果要更改特定MVC操作或控制器的最大请求正文大小限制，则可以使用RequestSizeLimit属性.以下内容将允许MyAction接受最大100,000,000字节的请求正文.

If you want to change the max request body size limit for a specific MVC action or controller, you can use the RequestSizeLimit attribute. The following would allow MyAction to accept request bodies up to 100,000,000 bytes.

[HttpPost]
[RequestSizeLimit(100_000_000)]
public IActionResult MyAction([FromBody] MyViewModel data)
{

[DisableRequestSizeLimit]可用于使请求大小不受限制.这样可以有效地还原仅归因于操作或控制器的2.0.0之前的行为.

[DisableRequestSizeLimit] can be used to make request size unlimited. This effectively restores pre-2.0.0 behavior for just the attributed action or controller.

如果MVC操作未处理该请求，则仍可以使用IHttpMaxRequestBodySizeFeature在每个请求的基础上修改限制.例如:

If the request is not being handled by an MVC action, the limit can still be modified on a per request basis using the IHttpMaxRequestBodySizeFeature. For example:

app.Run(async context =>
{
    context.Features.Get<IHttpMaxRequestBodySizeFeature>().MaxRequestBodySize = 100_000_000;

MaxRequestBodySize是可为空的long.将其设置为null将禁用MVC [DisableRequestSizeLimit]之类的限制.

MaxRequestBodySize is a nullable long. Setting it to null disables the limit like MVC's [DisableRequestSizeLimit].

仅当应用程序尚未开始读取时，您才可以配置请求的限制；否则将引发异常.有一个IsReadOnly属性，它会告诉您MaxRequestBodySize属性是否处于只读状态，这意味着配置该限制为时已晚.

You can only configure the limit on a request if the application hasn’t started reading yet; otherwise an exception is thrown. There’s an IsReadOnly property that tells you if the MaxRequestBodySize property is in read-only state, meaning it’s too late to configure the limit.

如果要全局修改最大请求正文大小，可以通过在UseKestrel或UseHttpSys的回调中修改MaxRequestBodySize属性来完成.在两种情况下，MaxRequestBodySize都是可为空的long.例如:

If you want to modify the max request body size globally, this can be done by modifying a MaxRequestBodySize property in the callback of either UseKestrel or UseHttpSys. MaxRequestBodySize is a nullable long in both cases. For example:

.UseKestrel(options =>
{
    options.Limits.MaxRequestBodySize = null;

或

.UseHttpSys(options =>
{
    options.MaxRequestBodySize = 100_000_000;

在Asp.Net Core中增加上传文件的大小

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