利用formdata对象上传文件时，需要添加的参数

1. function doUpload() {
2. var formData = new FormData($( "#uploadForm" )[0]);
3. $.ajax({
4. url: 'http://localhost:8080/cfJAX_RS/rest/file/upload' ,
5. type: 'POST',
6. data: formData,
7. async: false,
8. cache: false,
9. contentType: false,
10. processData: false,
11. success: function (returndata) {
12. alert(returndata);
13. },
14. error: function (returndata) {
15. alert(returndata);
16. }
17. });
18. }

实践代码：

/*
* 编辑马甲图片上传接口改为线上个人中心头像上传接口
* */
$(document).on("change","#js_moment_tx_upload_pic",function(){
    var oMyForm = new FormData();
    var t = $(this);
    t_file = t[0].files[0];
    oMyForm.append("image",t_file);
    $.ajax({
        url: '/user_apply/change_avatar?is_ajax=1&huxiu_hash_code='+huxiu_hash_code,
        data: oMyForm,
        dataType: "json",
        type: "post",
        processData: false,
        contentType: false,
        success: function (data) {
            t.attr("data-imgid",data.data.uuid);
            t.attr("data-imgurl",data.data.img_url);
            $("#moment-upload-pic").attr("src",data.data.img_url);
        }
    });
});