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AJAX调用webapi上传图片或文件。设置token，设置Authorization Bearer
分类:
.NET MVC
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：
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Title</title>
<script src="https://code.jquery.com/jquery-3.2.1.min.js"></script>
<script>
function doUpload() {
var formData = new FormData($("#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);
}
});
}
</script>
</head>
<body>
<form id="uploadForm">
<p>无刷新测试： <input type="text" name="filename" value="" /></p>
<p>上传文件： <input type="file" name="file" /></p>
<input type="button" value="上传" onclick="doUpload()" />
</form>
</body>
</html>webapi相关：
public async Task<string> Post()
{
if (!Request.Content.IsMimeMultipartContent())
{
throw new HttpResponseException(HttpStatusCode.UnsupportedMediaType);
}
string uploadFolderPath = HostingEnvironment.MapPath("~/Upload");
//如果路径不存在，创建路径
if (!Directory.Exists(uploadFolderPath))
Directory.CreateDirectory(uploadFolderPath);
string guid = Guid.NewGuid().ToString().Replace("-","");
List<string> files = new List<string>();
var provider = new WithExtensionMultipartFormDataStreamProvider(uploadFolderPath, guid);
try
{
// Read the form data.
await Request.Content.ReadAsMultipartAsync(provider);
// This illustrates how to get the file names.
foreach (var file in provider.FileData)
{//接收文件
files.Add(Path.GetFileName(file.LocalFileName));
}
}
catch
{
throw;
}
return string.Join(",", files);
}其中的WithExtensionMultipartFormDataStreamProvider类：
public class WithExtensionMultipartFormDataStreamProvider : MultipartFormDataStreamProvider
{
public string guid { get; set; }
public WithExtensionMultipartFormDataStreamProvider(string rootPath, string guidStr)
: base(rootPath)
{
guid = guidStr;
}
public override string GetLocalFileName(System.Net.Http.Headers.HttpContentHeaders headers)
{
string extension = !string.IsNullOrWhiteSpace(headers.ContentDisposition.FileName) ? Path.GetExtension(GetValidFileName(headers.ContentDisposition.FileName)) : "";
return guid + extension;
}
private string GetValidFileName(string filePath)
{
char[] invalids = System.IO.Path.GetInvalidFileNameChars();
return String.Join("_", filePath.Split(invalids, StringSplitOptions.RemoveEmptyEntries)).TrimEnd('.');
}
}效果如下：
图片与文件被成功上传了：
如果后台接口需要设置token，设置Authorization Bearer
通过header设置就行
headers: {
"Authorization":"Bearer "+token,
'Content-Type': 'application/json' //application/x-www-form-urlencoded application/json
},来个例子。
表单
<form id="uploadImgForm" action="http://localhost:8080/apis/oss/api/SmartFiles/UpLoadFormFile" method="post"> <input type="text" name="bucketName" value="labroom"> <input type="text" name="filePath" value="labresult"> <input type="text" name="FileType" value="1"> <input type="file" name="file"> <input type="button" value="提交" id="upLoadImgBut"> </form>
js:
var formData = new FormData($("#uploadImgForm")[0]);
let token = "eyJhbGciOiJSUzI1NiIsImtpZCI6IkU0QUU1RkVFRUQ4ODhFMDAyRjM5ODcwODdGQjZBMDlFQ0UxQ0IzRThSUzI1NiIsInR5cCI6ImF0K2p3dCIsIng1dCI6IjVLNWY3dTJJamdBdk9ZY0lmN2FnbnM0Y3MtZyJ9.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.kVKlEsqmp-BBXwFfWTNbKiR-6SgAPWNCoxbZk9ER7J21KxFKLCMNwn3Ta0oExaN0_vNDy_yfSJ36NWUGJLk6_RoOWsJFlaEVSNXhOOleT74DgN0DdZRsUIsp_MuZRt9nN2HOQBanUgAcGFy6h8DwnBIwZDCNh7Kol6uh2vVXKJBtqAVUZLZ7_Bk9bNSXpIJHD4y6dNmRRwanuG602QYJJ_Vj5RzLqXCrPyTwPVJ9pZM6SznLGGgMmBWCT9L3c44ctckEZG00haoJPkaJALYbcW-uevn2DPwCKVLBKvgFxk6cRQkISsq5DoMKts5BKHbWIjHs2MmIDjZuwGEG_5Jshw";
$.ajax({
url: 'http://localhost:8080/apis/oss/api/SmartFiles/UpLoadFormFile',
type: 'post',
data: formData,
async: false,
cache: false,
contentType: false,
processData: false,
headers: {
"Authorization":"Bearer "+token,
//'Content-Type': 'application/json' //application/x-www-form-urlencoded application/json
},
success: function (returndata) {
console.log(returndata);
},
error: function (returndata) {
alert("报错了");
console.log(returndata);
}
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