Code to upload ajax files using FormData()

This article introduces to you the code about using FormData() to upload ajax files. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to you.

HTML:

<form action="">
    
        <input type="file" id="file1" name="">
    
        <br>
    
        <input type="file" id="file2" name="">
    
        <br>
    
        <input type="button" value="保存">
    
    </form>

JS:

      $("input[type='button']").on('click', upfile);

        /**
         * [upfile 文件上传]
         * @return {[Object]} [成功回调]
         */
        function upfile() {
            
            var formData = new FormData();

            formData.append("接收字段1", document.getElementById('file1').files[0]);
            // console.log(document.getElementById('file1').files[0]);
            
            formData.append("接收字段2", document.getElementById('file2').files[0]);
            // console.log(document.getElementById('file2').files[0]);

            $.ajax({

                url: '接口地址url',

                type: 'POST',

                data: formData, // 上传formdata封装的数据包

                dataType: 'JSON',

                cache: false, // 不缓存

                processData: false, // jQuery不要去处理发送的数据

                contentType: false, // jQuery不要去设置Content-Type请求头

                success: function(data) { // 成功回调

                    console.log(data);

                }

            });
        
        }

Successful effect:

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