AJAX调用webapi上传图片或文件，并返回刚上传的文件名。废话不多说直接贴代码吧
html相关：html>
Title
functiondoUpload(){
varformData=newFormData($("#uploadForm")[0]);
$.ajax({
url:'/api/upload',
type:'post',
data:formData,
async:false,
cache:false,
contentType:false,
processData:false,
success:function(returndata){
alert(returndata);
},
error:function(returndata){
alert("报错了");
console.log(returndata);
}
});
}
无刷新测试：
上传文件：
webapi相关：publicasyncTaskPost()
{
if(!Request.Content.IsMimeMultipartContent())
{
thrownewHttpResponseException(HttpStatusCode.UnsupportedMediaType);
}
stringuploadFolderPath=HostingEnvironment.MapPath("~/Upload");
//如果路径不存在，创建路径
if(!Directory.Exists(uploadFolderPath))
Directory.CreateDirectory(uploadFolderPath);
stringguid=Guid.NewGuid().ToString().Replace("-","");
Listfiles=newList();
varprovider=newWithExtensionMultipartFormDataStreamProvider(uploadFolderPath,guid);
try
{
//Readtheformdata.
awaitRequest.Content.ReadAsMultipartAsync(provider);
//Thisillustrateshowtogetthefilenames.
foreach(varfileinprovider.FileData)
{//接收文件
files.Add(Path.GetFileName(file.LocalFileName));
}
}
catch
{
throw;
}
returnstring.Join(",",files);
}
其中的WithExtensionMultipartFormDataStreamProvider类：publicclassWithExtensionMultipartFormDataStreamProvider:MultipartFormDataStreamProvider
{
publicstringguid{get;set;}
publicWithExtensionMultipartFormDataStreamProvider(stringrootPath,stringguidStr)
:base(rootPath)
{
guid=guidStr;
}
publicoverridestringGetLocalFileName(.Http.Headers.HttpContentHeadersheaders)
{
stringextension=!string.IsNullOrWhiteSpace(headers.ContentDisposition.FileName)?Path.GetExtension(GetValidFileName(headers.ContentDisposition.FileName)):"";
returnguid+extension;
}
privatestringGetValidFileName(stringfilePath)
{
char[]invalids=System.IO.Path.GetInvalidFileNameChars();
returnString.Join("_",filePath.Split(invalids,StringSplitOptions.RemoveEmptyEntries)).TrimEnd('.');
}
}
效果如下：
图片与文件被成功上传了：
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