asp.net core webapi frombody参数大小限制

Gio*_*iox 3 c# asp.net-web-api asp.net-core

我在 ASP.NET Core 3.1 中实现了一个端点来检索大型 JSON 对象,当此 JSON 开始相对较大时,我遇到了问题。我开始在 5~600KB 左右出现问题。

对于正文低于 600~500KB 的请求,一切正常。

端点定义如下:

[DisableRequestSizeLimit]
[RequestFormLimits(ValueCountLimit = int.MaxValue)]
[HttpPost]
[Route("MyTestEndpoint")]
public void PostTest([FromBody]object objVal)
{
    // objVal is null when the post is larger than ~5~600KB
    string body = objVal.toString;
    ....
}
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网络配置:

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <location path="." inheritInChildApplications="false">
<system.web>
    <httpRuntime  maxRequestLength="1048576" />  
</system.web>

    <system.webServer>
      <handlers>
        <add name="aspNetCore" path="*" verb="*" modules="AspNetCoreModuleV2" resourceType="Unspecified" />
      </handlers>
      <aspNetCore processPath="dotnet" arguments=".\ApiSLPCalendar.dll" stdoutLogEnabled="true" stdoutLogFile=".\logs\stdout" hostingModel="inprocess" />
      <security>
        <requestFiltering>
          <!-- This will handle requests up to 100MB -->
          <requestLimits maxAllowedContentLength="1048576000" />
        </requestFiltering>
      </security>    
</system.webServer>

<system.web.extensions>
       <scripting>
           <webServices>
               <jsonSerialization maxJsonLength="50000000"/>
           </webServices>
       </scripting>
</system.web.extensions>

  </location>
</configuration>
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启动.cs:

public void ConfigureServices(IServiceCollection services)
{

            services.AddControllers().ConfigureApiBehaviorOptions(options =>
            {
                options.SuppressConsumesConstraintForFormFileParameters = true;
                options.SuppressInferBindingSourcesForParameters = true;
                options.SuppressModelStateInvalidFilter = true;
                options.SuppressMapClientErrors = true;
            });
            services.AddMvc(options =>
            {
                options.MaxModelBindingCollectionSize = int.MaxValue;
            });

            services.Configure<FormOptions>(x =>
            {
                x.ValueLengthLimit = int.MaxValue;
                x.MultipartBodyLengthLimit = int.MaxValue;
            });
....
}
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您知道为什么会发生这种情况吗?

******* 编辑 *******

我尝试了几次更改,但没有一个能正常工作。

最后,在对 FromBody 字符串参数的讨论给出 null后,我修改了该方法,定义了一个模型,删除了通用对象作为参数。前端已修改为发送 key="value",其中“Value”表示字符串化的 JSON 对象。

Pri*_*kar 6

也许您没有达到请求大小限制,但达到了表单大小限制。请尝试[RequestFormLimits(MultipartBodyLengthLimit = 104857600)] MultipartBodyLengthLimit是长类型并考虑您的情况。

如果您需要上传文件大小不受限制:-

services.Configure<FormOptions>(x =>
{
    x.ValueLengthLimit = int.MaxValue;
    x.MultipartBodyLengthLimit = int.MaxValue; 
});

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当请求到达 IIS 时,它将搜索 web.config检查最大上传长度。

//clarify code

<!-- 1 GB -->
 <requestLimits maxAllowedContentLength="1073741824" />

//clarify code

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更新

[HttpPost]
[RequestFormLimits(ValueCountLimit = int.MaxValue)]
[Route("MyTestEndpoint")]
public void PostTest([FromBody]object objVal)
{
    ....
    string body = objVal.toString;
    ....
}

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services.Configure<FormOptions>(options =>
            {
                options.ValueCountLimit = 10; 
                options.ValueLengthLimit = int.MaxValue; 
                options.MultipartBodyLengthLimit = long.MaxValue; 
                options.MemoryBufferThreshold = Int32.MaxValue;
            });
            services.AddMvc(options =>
            {
                options.MaxModelBindingCollectionSize = int.MaxValue;
            });

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网页配置

<system.web>
    <httpRuntime  maxRequestLength="1048576" />  
</system.web>
    <system.webServer>
  <security>
    <requestFiltering>
      <requestLimits maxAllowedContentLength="2147483648" />
    </requestFiltering>
  </security>
</system.webServer>
<system.web.extensions>
       <scripting>
           <webServices>
               <jsonSerialization maxJsonLength="50000000"/>
           </webServices>
       </scripting>
   </system.web.extensions>

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