<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>jq+ajax 实现多张图片上传</title> </head> <body> <div class="item"> <input type="file" name="files" id="file" multiple="multiple" accept="image/png,image/jpg,image/gif,image/JPEG"> </div> <script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.5.1/jquery.min.js"></script> <script> $('#file').on("change", function () { var formData = new FormData(); for (var i = 0; i < $("#file")[0].files.length; i++) { //循环获取上传个文件 formData.append("file", $("#file")[0].files[i]); } $.ajax({ "url": "", // 上传地址 "data": formData, "dataType": "json", "type": "post", "contentType": false, //上传文件一定要是false "processData": false, "success": function (obj) { if (obj.state == 1) { console.log(obj) } else { console.log(obj.message) } } }); }) </script> </body> </html>