发布：2022/5/25 22:43:31作者：管理员 来源：本站 浏览次数：1074
html ajax上传图片到服务器 后端采用asp.net webapi
前端有各种现实上传图片的控件，样式可以做的很美观。我这里只用基本的样式做图片上传。
前端代码
<div>
<input name="Userfile" id="Userfile" type="file">
<input type="button" id="uploadfile" />
</div>
<script>
$(function () {
$("#uploadfile").click(function () {
var formDate = new FormData();
var files = $("#Userfile").get(0).files;
formDate.append("Userfile", files[0]);
//如果有其他参需要一起提交到后台
formDate.append("location", location);
$.ajax({
type: "POST",
url: "http://localhost:6890/upload/imgs",
contentType: false,
cache: false,
processData: false,
data: formDate,
error: function (request) {
console.log(request);
},
success: function (data) {
console.log(data);
}
});
});
});
</script>
c#后端WebApi接口
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Web;
using System.Web.Http;
namespace OnlineApi.Controllers
{
[RoutePrefix("upload")]
public class UploadController : ApiController
{
[HttpPost, Route("imgs")]
public bool UploadImgs()
{
//图片存储路径
string path = AppDomain.CurrentDomain.SetupInformation.ApplicationBase + "img/";
//用户提交的数据
var Data = System.Web.HttpContext.Current.Request.Form;
string filesrc = string.Empty;
string src = string.Empty;
//获取上传的文件
var httpPostedFile = HttpContext.Current.Request.Files;
//var uploadPath = "/img/";
if (httpPostedFile != null && httpPostedFile.Count > 0)
{
var file = httpPostedFile[0];
string imgType = Path.GetExtension(file.FileName);
//限制文件上传类型
if (imgType.Contains(".jpg") || imgType.Contains(".png") || imgType.Contains(".bmp"))
{
string FileName = Guid.NewGuid().ToString() + imgType;
filesrc = path + FileName;
src = "/images/" + FileName;
// 如果目录不存在则要先创建
if (!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
file.SaveAs(filesrc);
}
}
if (!string.IsNullOrEmpty(src))
{
//存储图片路径到数据库
}
return true;
}
}
}
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