Azure 函数文件上传和读取内容
Azure Function File Upload and Read Content
您好,我正在尝试使用 Azure Functions 的 Http 触发器来接收上传的文件并读取所述文件。
IE.
public static async Task<IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)]
HttpRequest req, ILogger log)
'req' 将是一个文件。
我如何read/parse请求?
该文件将是 text/word 文档或 excel(猜测必须有两个单独的代码块来处理不同的媒体类型)。
编辑:文件上传后,我想阅读文件的内容:如果文件显示:“Hello World”,我该如何阅读?
更新:
例如,如果我有一个 txt 文件:
我把它放在请求的正文中:
我将使用它来获取数据:
using System;
using System.IO;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Azure.WebJobs;
using Microsoft.Azure.WebJobs.Extensions.Http;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Logging;
using Newtonsoft.Json;
namespace FunctionApp25
{
public static class Function1
{
[FunctionName("Function1")]
public static async Task<IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)] HttpRequest req,
ILogger log)
{
string a = req.ContentType;
string content = null;
if (req.ContentType == "text/plain")
{
content = await new StreamReader(req.Body).ReadToEndAsync();
}
return new OkObjectResult(content);
}
}
}
然后我会得到数据:
原答案:
可以,但是我们必须先知道输入的媒体类型。
直接获取内容类型即可。
这是常见文件格式的内容类型:
.doc application/msword
.dot application/msword
.docx application/vnd.openxmlformats-officedocument.wordprocessingml.document
.dotx application/vnd.openxmlformats-officedocument.wordprocessingml.template
.docm application/vnd.ms-word.document.macroEnabled.12
.dotm application/vnd.ms-word.template.macroEnabled.12
.xls application/vnd.ms-excel
.xlt application/vnd.ms-excel
.xla application/vnd.ms-excel
.xlsx application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
.xltx application/vnd.openxmlformats-officedocument.spreadsheetml.template
.xlsm application/vnd.ms-excel.sheet.macroEnabled.12
.xltm application/vnd.ms-excel.template.macroEnabled.12
.xlam application/vnd.ms-excel.addin.macroEnabled.12
.xlsb application/vnd.ms-excel.sheet.binary.macroEnabled.12
.ppt application/vnd.ms-powerpoint
.pot application/vnd.ms-powerpoint
.pps application/vnd.ms-powerpoint
.ppa application/vnd.ms-powerpoint
.pptx application/vnd.openxmlformats-officedocument.presentationml.presentation
.potx application/vnd.openxmlformats-officedocument.presentationml.template
.ppsx application/vnd.openxmlformats-officedocument.presentationml.slideshow
.ppam application/vnd.ms-powerpoint.addin.macroEnabled.12
.pptm application/vnd.ms-powerpoint.presentation.macroEnabled.12
.potm application/vnd.ms-powerpoint.template.macroEnabled.12
.ppsm application/vnd.ms-powerpoint.slideshow.macroEnabled.12
.mdb application/vnd.ms-access
更多信息,只需搜索 MIME 类型即可。确定文件类型后,就用一些包来处理数据。
比如我在req body中放了一个docx文件
我可以这样做来获取 C# 中的内容类型:
using System;
using System.IO;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Azure.WebJobs;
using Microsoft.Azure.WebJobs.Extensions.Http;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Logging;
using Newtonsoft.Json;
namespace FunctionApp24
{
public static class Function1
{
[FunctionName("Function1")]
public static async Task<IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)] HttpRequest req,
ILogger log)
{
string a = req.ContentType;
return new OkObjectResult(a);
}
}
}
如果需要一个函数处理不同类型的文件,只需要将获取内容类型的逻辑放在函数体中,让不同的类型去不同的逻辑即可。
您好,我正在尝试使用 Azure Functions 的 Http 触发器来接收上传的文件并读取所述文件。
IE.
public static async Task<IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)]
HttpRequest req, ILogger log)
'req' 将是一个文件。
我如何read/parse请求? 该文件将是 text/word 文档或 excel(猜测必须有两个单独的代码块来处理不同的媒体类型)。
编辑:文件上传后,我想阅读文件的内容:如果文件显示:“Hello World”,我该如何阅读?
更新:
例如,如果我有一个 txt 文件:
我把它放在请求的正文中:
我将使用它来获取数据:
using System;
using System.IO;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Azure.WebJobs;
using Microsoft.Azure.WebJobs.Extensions.Http;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Logging;
using Newtonsoft.Json;
namespace FunctionApp25
{
public static class Function1
{
[FunctionName("Function1")]
public static async Task<IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)] HttpRequest req,
ILogger log)
{
string a = req.ContentType;
string content = null;
if (req.ContentType == "text/plain")
{
content = await new StreamReader(req.Body).ReadToEndAsync();
}
return new OkObjectResult(content);
}
}
}
然后我会得到数据:
原答案:
可以,但是我们必须先知道输入的媒体类型。
直接获取内容类型即可。
这是常见文件格式的内容类型:
.doc application/msword
.dot application/msword
.docx application/vnd.openxmlformats-officedocument.wordprocessingml.document
.dotx application/vnd.openxmlformats-officedocument.wordprocessingml.template
.docm application/vnd.ms-word.document.macroEnabled.12
.dotm application/vnd.ms-word.template.macroEnabled.12
.xls application/vnd.ms-excel
.xlt application/vnd.ms-excel
.xla application/vnd.ms-excel
.xlsx application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
.xltx application/vnd.openxmlformats-officedocument.spreadsheetml.template
.xlsm application/vnd.ms-excel.sheet.macroEnabled.12
.xltm application/vnd.ms-excel.template.macroEnabled.12
.xlam application/vnd.ms-excel.addin.macroEnabled.12
.xlsb application/vnd.ms-excel.sheet.binary.macroEnabled.12
.ppt application/vnd.ms-powerpoint
.pot application/vnd.ms-powerpoint
.pps application/vnd.ms-powerpoint
.ppa application/vnd.ms-powerpoint
.pptx application/vnd.openxmlformats-officedocument.presentationml.presentation
.potx application/vnd.openxmlformats-officedocument.presentationml.template
.ppsx application/vnd.openxmlformats-officedocument.presentationml.slideshow
.ppam application/vnd.ms-powerpoint.addin.macroEnabled.12
.pptm application/vnd.ms-powerpoint.presentation.macroEnabled.12
.potm application/vnd.ms-powerpoint.template.macroEnabled.12
.ppsm application/vnd.ms-powerpoint.slideshow.macroEnabled.12
.mdb application/vnd.ms-access
更多信息,只需搜索 MIME 类型即可。确定文件类型后,就用一些包来处理数据。
比如我在req body中放了一个docx文件
我可以这样做来获取 C# 中的内容类型:
using System;
using System.IO;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Azure.WebJobs;
using Microsoft.Azure.WebJobs.Extensions.Http;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Logging;
using Newtonsoft.Json;
namespace FunctionApp24
{
public static class Function1
{
[FunctionName("Function1")]
public static async Task<IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Function, "get", "post", Route = null)] HttpRequest req,
ILogger log)
{
string a = req.ContentType;
return new OkObjectResult(a);
}
}
}
如果需要一个函数处理不同类型的文件,只需要将获取内容类型的逻辑放在函数体中,让不同的类型去不同的逻辑即可。