<!--微信图片上传--><section class="logo-license"><div class="half"><div class="uploader"><a class="license">@if (!string.IsNullOrEmpty(Model.ClassImage)){<img id="img-1" src="@Model.ClassImage" />}else{<img id="img-1" src="/images/img_01.png" />}</a><input id="file0" class="file-3" name="imageData" type="file" width="130" height="130" accept="image/*" /></div><div class="yulan"><img src="" id="img0"><div class="enter"><button class="btn-2 fl">取消</button><input type="submit" class="btn-3 fr" value="确定" /></div></div></div><div class="clear"></div></section>

 <script>var subUrl = "";$("#file0").change(function () {//获取当前var objUrl = getObjectURL(this.files[0]);console.log(this.files[0])obUrl = objUrl;console.log("objUrl = " + objUrl);if (objUrl) {$("#img0").attr("src", objUrl).show();}else {$("#img0").hide();}});$(function () {$(".file-3").bind('change', function () {subUrl = $(this).val();$(".yulan").show();$(".file-3").val("");});$(".btn-3").click(function () {$("#img-1").attr("src", obUrl);$(".yulan").hide();$(".file-3").parents(".uploader").find(".filename").val(subUrl);var basepath = "";var ClassID = $("#ClassID").val();var TeacherID = $("#TeacherID").val();var image = new Image();image.crossOrigin = '';image.src = obUrl;image.onload = function () {basepath = getBase64Image(image);basepath = basepath.replace(/^data:image\/(png|jpg);base64,/, "")//开始异步发送$.ajax("/home/savenewsbackimage", {data: JSON.stringify({ path: basepath, ClassID: ClassID, TeacherID: TeacherID }),type: "POST", dataType: "text", contentType: "application/json;utf-8",success: function (data) {alert(data);}});}})$(".btn-2").click(function () {$(".yulan").hide();})});function qd() {var objUrl = getObjectURL(this.files[0]);obUrl = objUrl;console.log("objUrl = " + objUrl);if (objUrl) {$("#img0").attr("src", objUrl).show();}else {$("#img0").hide();}}function getObjectURL(file) {var url = null;if (window.createObjectURL != undefined) { // basicurl = window.createObjectURL(file);} else if (window.URL != undefined) { // mozilla(firefox)url = window.URL.createObjectURL(file);} else if (window.webkitURL != undefined) { // webkit or chromeurl = window.webkitURL.createObjectURL(file);}return url;}//img转码base64function getBase64Image(img) {var canvas = document.createElement("canvas");canvas.width = img.width;canvas.height = img.height;var ctx = canvas.getContext("2d");ctx.drawImage(img, 0, 0, img.width, img.height);var ext = img.src.substring(img.src.lastIndexOf(".") + 1).toLowerCase();var dataURL = canvas.toDataURL("image/" + ext);return dataURL;}</script>

[HttpPost]public ActionResult SaveNewsBackImage(string path, string ClassID, string TeacherID){//保存图片到服务器，string basePath = "/UploadPic/";string imgname = DateTime.Now.Ticks + ".jpg";string basepath = HttpContext.Server.MapPath(basePath);string Pic_Path = basepath + imgname;using (FileStream fs = new FileStream(Pic_Path, FileMode.Create)){using (BinaryWriter bw = new BinaryWriter(fs)){byte[] data = Convert.FromBase64String(path);bw.Write(data);bw.Close();}}//把图片地址存到数据库string serpath = ConfigurationManager.AppSettings["Domain"].ToString();string classimagePath = serpath + basePath + imgname;var flag = new ClassBLL().SaveNewsBackImage(classimagePath, Convert.ToInt32(ClassID), Convert.ToInt32(TeacherID));return Content("上传成功");}