base64转file文件上传

来源：互联网发布：淘宝免费装修模板编辑：程序博客网时间：2024/06/10 03:58
<!DOCTYPE html>    <html>        <head>            <meta charset="UTF-8">            <title></title>        </head>        <body>            <button onclick="upload()">上传测试</button>             <br />             上传的图片:             <!--<form class="photo-panel"  enctype="multipart/form-data" id="realNameForm"></form>-->            <img src="data:image/png;base64,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 AwEBAQEBAQEBAQAAAAAAAAECAwQFBgcICQoL/8QAtREAAgECBAQDBAcFBAQAAQJ3AAECAxEEBSExBhJBUQdhcRMiMoEIFEKRobHBCSMzUvAVYnLRChYkNOEl8RcYGRomJygpKjU2Nzg5OkNERUZHSElKU1RVVldYWVpjZGVmZ2hpanN0dXZ3eHl6goOEhYaHiImKkpOUlZaXmJmaoqOkpaanqKmqsrO0tba3uLm6wsPExcbHyMnK0tPU1dbX2Nna4uPk5ebn6Onq8vP09fb3+Pn6/9oADAMBAAIRAxEAPwD1ySW3 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 dGdY1miQb2dSAwXnhgcfNwTxx+eaba3kd3YWsj+VOk0O6IOwIdlOAQT13ZFcVeG8vNF8QXcOoXQt 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">            <script src="../zepto/zepto.min.js"></script>         <script type="text/javascript">                 /**                  * 根据base64 内容 取得 bolb                  *                  * @param dataURI                  * @returns Blob                  */                function getBlobBydataURI(dataURI,type) {                   var binary = atob(dataURI.split(',')[1]);                   var array = [];                   for(var i = 0; i < binary.length; i++) {                     array.push(binary.charCodeAt(i));                   }                   return new Blob([new Uint8Array(array)], {type:type });                 }                 /**                  * 上传                  */                upload();                function upload(){                     var code = '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 AwEBAQEBAQEBAQAAAAAAAAECAwQFBgcICQoL/8QAtREAAgECBAQDBAcFBAQAAQJ3AAECAxEEBSExBhJBUQdhcRMiMoEIFEKRobHBCSMzUvAVYnLRChYkNOEl8RcYGRomJygpKjU2Nzg5OkNERUZHSElKU1RVVldYWVpjZGVmZ2hpanN0dXZ3eHl6goOEhYaHiImKkpOUlZaXmJmaoqOkpaanqKmqsrO0tba3uLm6wsPExcbHyMnK0tPU1dbX2Nna4uPk5ebn6Onq8vP09fb3+Pn6/9oADAMBAAIRAxEAPwD1ySW3 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 dGdY1miQb2dSAwXnhgcfNwTxx+eaba3kd3YWsj+VOk0O6IOwIdlOAQT13ZFcVeG8vNF8QXcOoXQt 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';                    var form=document.forms[0];                      var formData = new FormData(form);   //这里连带form里的其他参数也一起提交了,如果不需要提交其他参数可以直接FormData无参数的构造函数                      formData.append("file",convertBase64UrlToBlob(code));  //append函数的第一个参数是后台获取数据的参数名,和html标签的input的name属性功能相同                    //如果想base64转file后，给file命名，以一个固定的文件名上传，则可以使用    //var formData = new FormData(form);   //这里连带form里的其他参数也一起提交了,如果不需要提交其他参数可以直接FormData无参数的构造函数                    //formData.append("file1",convertBase64UrlToBlob(frontFile.replace(/^data:image\/(png|jpg);base64,/,"")),"file1.png");  //append函数的第一个参数是后台获取数据的参数名,和html标签的input的name属性功能相同    $.ajax({ url : '/file/upload.do', type : "POST", data : formData, dataType:"json", headers:{ accept:'*/*' }, processData : false, // 告诉jQuery不要去处理发送的数据 contentType : false, // 告诉jQuery不要去设置Content-Type请求头 success:function(data){  if(1 == data.code){  $("#code").val(data.imageCode);  } }, error:function(){ console.log("自动识别失败，请手动输入...") }}); } function convertBase64UrlToBlob(urlData) { var bytes = window.atob(urlData); //去掉url的头，并转换为byte //处理异常,将ascii码小于0的转换为大于0 var ab = new ArrayBuffer(bytes.length); var ia = new Uint8Array(ab);  for(var i = 0; i < bytes.length; i++) {  ia[i] = bytes.charCodeAt(i);  } return new Blob([ab], { type: 'image/png' });}          </script>     </body></html>
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