如何将数据从输入类型=“文件”发送到控制器？

Question

I have in the ftl:

<input type="file" id="doc6" name="documente">

in .js:

var lx = $("#longX").val();
var ly = $("#latY").val();
var jud = $("#judetPunctLucru").val();
var doc6Type = $("#doc6Type").val();
var doc6 = $('doc6').val();

validateCoords: function (lx, ly, jud, doc6Type, doc6) {
            var data = {
                lx: lx,
                ly: ly,
                jud: jud,
                doc6Type: doc6Type,
                doc6: doc6
            };
            var url = contextPath + '/validareCoord';
            return getJSONData(url, data);
        }

and in the controller:

@RequestMapping(value = "/validareCoord", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_VALUE)
    @ResponseBody
    public Map<String, Object> getValidCoord(@RequestParam("lx") String lx,
                                             @RequestParam("ly") String ly,
                                             @RequestParam("jud") String jud,
                                             @RequestParam(value = "doc6Type", defaultValue = "") final String doc6Type,
                                             @RequestParam(value = "doc6", required=false) MultipartFile doc6){
.....
}

but doc6 is not what I need when I read it like that and the error is:

ERROR:
org.springframework.web.multipart.MultipartException: The current request is not a multipart request

can you tell me how should I read the data from file? clearly var doc6 = $('doc6').val(); it's not ok.

Answer 1

您应该尝试在@RequestMapping添加标题：

headers = "content-type=multipart/*"