结合IndexController里的upload()方法
$("#content").on("paste", function(event) { var em = $("#error_message"); var items = (event.clipboardData || event.originalEvent.clipboardData).items; for (index in items) { var item = items[index]; var type = item.type; if(type && type.split('/')[0] == 'image') { em.html("正在上传..."); var suffix = type.split('/')[1]; var blob = item.getAsFile(); var size = blob.size; if(size / (1024 * 1024) < 2) { var reader = new FileReader(); reader.onload = function (event) { //var base64Str = event.target.result; var form = document.createElement("form").setAttribute("enctype", "multipart/form-data"); var formData = new FormData(form); formData.append("image", blob, "image." + suffix); var xhr = new XMLHttpRequest(); xhr.open('POST', '/upload', true); xhr.onload = function (event) { var responseText = event.currentTarget.responseText; var json = JSON.parse(responseText); if (json.code == 200) { var content = $("#content"); if (content.val().length > 0) { content.val(content.val() + "\r\n![image](" + json.detail + ")\r\n"); } else { content.val(content.val() + "![image](" + json.detail + ")\r\n"); } em.html(""); } else { em.html(json.description); } }; xhr.send(formData); }; reader.readAsDataURL(blob); } else { em.html("上传图片大小不能超过2M"); } } } });