[ASP.NET Core] 请求大小限制(转载)

请求大小一般在文件上传的时候会用到,当然也防止传过来的参数过大情况。

一、设置请求体的最大值

如果不设置请求体大小默认是 30_000_000 bytes,大约28.6MB,当超出大小时会出现如下错误:

错误:Failed to read the request form. Request body too large. The max request body size is 30000000 bytes.

解决方案:

builder.WebHost.ConfigureKestrel((context, options) =>
{
    //设置最大1G, 这里的单位是byte
    options.Limits.MaxRequestBodySize = 1073741824;
});

如果传参用的不是表单的形式(如文件上传)这样处理是足够了的,如果是则还需要设置表单的最大长度。

二、设置表单的最大值

如果不设置表单长度默认是 134,217,728 bytes,大约128MB,当超出大小时会出现如下错误:

错误:Failed to read the request form. Multipart body length limit 134217728 exceeded.

解决方案:

builder.Services.Configure<FormOptions>(option =>
{
    //设置最大1G, 这里的单位是byte
    option.MultipartBodyLengthLimit = 1073741824;
});

三、IIS下的配置

如果是挂在IIS下,还需如下操作:

  1. 修改C:\Windows\System32\inetsrv\config\schema\IIS_schema.xml中maxAllowedContentLength的大小;
  2. 修改项目web.config配置system.webServer/serverRuntime/maxRequestEntityAllowed的大小;
  3. 修改项目web.config配置system.web/httpRuntime/maxRequestLength的大小;
  4. 重启IIS。

文章转载于:https://www.helloworld.net/p/9291788101

 

 

下面是github的issue,基本上可以解决大部分请求遇到的大小限制问题,可根据自己需要添加相关代码:

https://github.com/dotnet/aspnetcore/issues/20369

1. IIS content length limit

The default request limit (maxAllowedContentLength) is 30,000,000 bytes, which is approximately 28.6MB. Customize the limit in the web.config file:

<system.webServer>
  <security>
    <requestFiltering>
      <!-- Handle requests up to 1 GB -->
      <requestLimits maxAllowedContentLength="1073741824" />
    </requestFiltering>
  </security>
</system.webServer>

Note: Without this application running on IIS would not work.

2. ASP.NET Core Request length limit:

For application running on IIS:

 services.Configure<IISServerOptions>(options =>
 {
      options.MaxRequestBodySize = int.MaxValue;
 });

For application running on Kestrel:

services.Configure<KestrelServerOptions>(options =>
{
     options.Limits.MaxRequestBodySize = int.MaxValue; // if don't set default value is: 30 MB
});

3. Form's MultipartBodyLengthLimit

services.Configure<FormOptions>(x =>
{
     x.ValueLengthLimit = int.MaxValue;
     x.MultipartBodyLengthLimit = int.MaxValue; // if don't set default value is: 128 MB
     x.MultipartHeadersLengthLimit = int.MaxValue;
});
 

Adding all the above options will solve the problem related to the file upload with size more than 30.0 MB.



 

posted @ 2023-06-08 18:57  浅巷深念  阅读(1530)  评论(0编辑  收藏  举报