spring boot:接收数组参数及多文件混合json参数(spring boot 2.3.4)

一，生产环境中的复杂参数上传的场景

1,保存排序值 ：

例如：某一件商品的多张展示图片排序，提交的排序值要和图片的id相对应

2,上传多张图片，图片要和指定的变量相对应

例如：在添加商品sku时，

需要为指定有图片的属性上传图片，

让用户看上去更直观

这里演示了这两种常见的参数上传，

电商系统中的sku的添加是很关键的一个功能模块，

必须让后台的操作人员能直观的看到自己的操作结果，

这里有一些js代码可以供大家参考

说明：刘宏缔的架构森林是一个专注架构的博客，地址：https://www.cnblogs.com/architectforest

对应的源码可以访问这里获取： https://github.com/liuhongdi/

说明：作者:刘宏缔 邮箱: [e-mail]

二，演示项目的相关信息

1,项目地址：

https://github.com/liuhongdi/arrayparam

2，功能说明：

演示了提交多个数组和提交多个数组变量及多个文件

3，项目结构：如图:

三，配置文件说明

1,pom.xml

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <!--thymeleaf begin-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>
        <!--validation begin-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-validation</artifactId>
        </dependency>
        <!--commons-fileupload-->
        <dependency>
            <groupId>commons-fileupload</groupId>
            <artifactId>commons-fileupload</artifactId>
            <version>1.4</version>
        </dependency>
        <!--commons-io-->
        <dependency>
            <groupId>commons-io</groupId>
            <artifactId>commons-io</artifactId>
            <version>2.8.0</version>
        </dependency>
        <!--fastjson begin-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.73</version>
        </dependency>

2,application.properties

#thymeleaf
spring.thymeleaf.cache=false
spring.thymeleaf.encoding=UTF-8
spring.thymeleaf.mode=HTML
spring.thymeleaf.prefix=classpath:/templates/
spring.thymeleaf.suffix=.html
#error
server.error.include-stacktrace=always
#errorlog
logging.level.org.springframework.web=trace

四，java代码说明

1,GoodsController.java

@Controller
@RequestMapping("/goods")
public class GoodsController {

    //显示商品图片
    @GetMapping("/image")
    public String goodsimage(Model model,@Min(value = 1,message = "商品id需要>0")@RequestParam("goodsId") Long goodsId) {

        model.addAttribute("goodsId", goodsId);
        return "goods/image";
    }

    //保存各图片的排序值
    @PostMapping("/contentsaveorder")
    @ResponseBody
    public String goodsContentSaveOrder(HttpServletRequest request,
                                       @Min(value = 1,message = "商品id需要>0")@RequestParam("goodsId") Long goodsId,
                                            @RequestParam(value = "imgids[]") Long[] imgids,
                                            @RequestParam(value = "orders[]") int[] orders
    ) {
        String res = "当前商品id:"+goodsId+"\n";
        for (int i = 0; i < imgids.length; i++) {
            Long imageId = imgids[i];
            int orderNum = orders[i];
            res += "当前图片id:"+imageId+";排序值:"+orderNum+"\n";
        }
        return res;
    }

    //显示商品sku
    @GetMapping("/sku")
    public String sku(Model model,@Min(value = 1,message = "商品id需要>0")@RequestParam("goodsId") Long goodsId) {
        model.addAttribute("goodsId", goodsId);
        return "goods/sku";
    }

    //保存商品的sku
    @PostMapping("/skuadded")
    @ResponseBody
    public String skuadded(@RequestParam("json") String json,HttpServletRequest request) {
        SkuForm skuform = JSONObject.parseObject(json, SkuForm.class);
        String res = "goodsId:"+skuform.getGoodsId()+"\n";
        for (Sku skuOne : skuform.getSkuList()) {
            res+="key:"+skuOne.getKey()+";price:"+skuOne.getPrice()+";stock:"+skuOne.getStock()+"\n";
        }
        for (AttrType typeone :skuform.getTypeList()) {
            res+="typename:"+typeone.getTypeName()+";isimage:"+typeone.getIsImage()+";attrlist:"+typeone.getAttrList()+"\n";
        }
        for (FormFile fileOne : skuform.getFileList()) {
            res+="filelist:fileName:"+fileOne.getFileName()+"\n";
        }

        CommonsMultipartResolver multipartResolver=new CommonsMultipartResolver(request.getSession().getServletContext());
         // 判断是否是多数据段提交格式
        if (multipartResolver.isMultipart(request)) {
            System.out.println("isMultipart");
            MultipartHttpServletRequest multiRequest = (MultipartHttpServletRequest)request;
            Iterator<String> iter = multiRequest.getFileNames();
            Integer fileCount = 0;
            while (iter.hasNext()) {
                MultipartFile multipartFile = multiRequest.getFile(iter.next());
                String varName = multipartFile.getName();
                String fileName = multipartFile.getOriginalFilename();
                if(fileName == null || fileName.trim().equals("")){
                    continue;
                } else {
                    res+="file:fileName:"+fileName+";varName:"+varName+"\n";
                }
            }
        } else {
            System.out.println("not isMultipart");
        }
       return res;
    }
}

2,SkuForm.java

public class SkuForm {

    //goodsid
    private Long goodsId;
    public Long getGoodsId() {
        return this.goodsId;
    }
    public void setGoodsId(Long goodsId) {
        this.goodsId = goodsId;
    }

    //type list
    private List<AttrType> typeList;
    public List<AttrType> getTypeList() {
        return this.typeList;
    }
    public void setTypeList(List<AttrType> typeList) {
        this.typeList = typeList;
    }

    //sku list
    private List<Sku> skuList;
    public List<Sku> getSkuList() {
        return this.skuList;
    }
    public void setSkuList(List<Sku> skuList) {
        this.skuList = skuList;
    }

    //file list
    private List<FormFile> fileList;
    public List<FormFile> getFileList() {
        return this.fileList;
    }
    public void setFileList(List<FormFile> fileList) {
        this.fileList = fileList;
    }
}

3,AttrType.java

public class AttrType {
    //typename
    private String typeName;
    public String getTypeName() {
        return this.typeName;
    }
    public void setTypeName(String typeName) {
        this.typeName = typeName;
    }

    //isImage
    private int isImage;
    public int getIsImage() {
        return this.isImage;
    }
    public void setIsImage(int isImage) {
        this.isImage = isImage;
    }

    //attr list
    private List<String> attrList;
    public List<String> getAttrList() {
        return this.attrList;
    }
    public void setAttrList(List<String> attrList) {
        this.attrList = attrList;
    }
}

4,Sku.java

public class Sku {
    //key
    private String key;
    public String getKey() {
        return this.key;
    }
    public void setKey(String key) {
        this.key = key;
    }

    //price
    private String price;
    public String getPrice() {
        return this.price;
    }
    public void setPrice(String price) {
        this.price = price;
    }

    //stock
    private int stock;
    public int getStock() {
        return this.stock;
    }
    public void setStock(int stock) {
        this.stock = stock;
    }
}

5,FormFile.java

public class FormFile {
    //fileName
    private String fileName;
    public String getFileName() {
        return this.fileName;
    }
    public void setFileName(String fileName) {
        this.fileName = fileName;
    }
}

五,html/js代码说明:

1,image.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script type="text/javascript" language="JavaScript" src="/js/jquery-1.6.2.min.js"></script>
</head>
<body>
<form id='content_order'>
<div style='width:320px;background-color: #000000;font-size: 14px;height: 20px;color: #ffffff;text-align: center;line-height: 20px;'>商品详情</div>
<div id="main" style="display: flex;flex-direction: column;">

<div style='width: 320px;'>
<div style='width:150px;float:left;line-height: 0px;'><img src='/img/3.jpg' style='width: 150px;' /></div>
<div style='width:150px;float:left;'>
 图片id:3   <br/>
排序值:<br/><input type='text' style='width:30px;' name='orderNum_3' value='' />
</div>
</div>

    <div style='width: 320px;'>
        <div style='width:150px;float:left;line-height: 0px;'><img src='/img/4.jpg' style='width: 150px;' /></div>
        <div style='width:150px;float:left;'>
            图片id:4   <br/>
            排序值:<br/><input type='text' style='width:30px;' name='orderNum_4' value='' />
        </div>
    </div>

    <div style='width: 320px;'>
        <div style='width:150px;float:left;line-height: 0px;'><img src='/img/5.jpg' style='width: 150px;' /></div>
        <div style='width:100px;float:left;'>
            图片id:5   <br/>
            排序值:<br/><input type='text' style='width:30px;' name='orderNum_5' value='' />
        </div>
    </div>
</div> <!--main end-->
</form>

<input type="button" value="保存排序值" th:onclick="saveOrder([[${goodsId}]])" />

<script>
    //保存排序值
    function saveOrder(goodsId){
        var form = document.getElementById("content_order");
        var tagElements = form.getElementsByTagName('input');
        var postdata = {};
        var imgids = [];
        var orders = [];
        for (var j = 0; j < tagElements.length; j++){
            var curid = tagElements[j].name.replace("orderNum_", "");
            imgids.push(curid);
            orders.push(tagElements[j].value);
        }
        postdata['imgids'] = imgids;
        postdata['orders'] = orders;
        postdata['goodsId'] = goodsId;

        $.ajax({
            type:"POST",
            url:"/goods/contentsaveorder",
            data:postdata,
            //返回数据的格式
            datatype: "text",//"xml", "html", "script", "json", "jsonp", "text".
            //成功返回之后调用的函数
            success:function(data){
                 alert(data);
            },
            //调用执行后调用的函数
            complete: function(XMLHttpRequest, textStatus){
                //alert(XMLHttpRequest.responseText);
                //alert(textStatus);
            },
            //调用出错执行的函数
            error: function(){
                //请求出错处理
                alert('error');
            }
        });
    }
</script>
</body>
</html>

2,sku.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script type="text/javascript" language="JavaScript" src="/js/jquery-1.6.2.min.js"></script>
</head>
<body>
<form id='content_order'>
<div id="main" style="display: flex;flex-direction: column;">
<div>
<input type="text" id="attrtype" name="attrtype" value="" />
    <input type="button" value="添加sku分类" onclick="addattrtype()">
</div>
    <div id="attrlist" style="width:500px;background: #ffffff;overflow: hidden;">
    </div>
    <div id="skulist" style="width:500px;background: #ffffff;display: flex;flex-direction: column;overflow: hidden;">
    </div>
</div> <!--main end-->
</form>
<input type="button" value="保存sku" th:onclick="savesku([[${goodsId}]])" />
<script>

    //------------------------------------------------------------global var
    //分类列表
    var global_type = [];
    //分类1的属性列表
    var attr_list_0 = [];
    //分类2的属性列表
    var attr_list_1 = [];

    //-------------------------------------------------------------method
    //添加分类
    function addattrtype() {
        if (global_type.length >=2 ){
            alert("属性种类数量不能超过2类");
            return false;
        }

        var typename = document.getElementById('attrtype').value;
        if (global_type.indexOf(typename)>=0) {
            alert(typename+"已存在");
            return false;
        }
        if (typename == "") {
            alert("类别名称不可为空");
            return false;
        }

        global_type.push(typename);
        //addonetype(typename);
        var html = "<div id='type"+typename+"' style='background: #ffffff;width:500px;min-height:130px;'>" +
            "<div style='background: #eeeeee;text-align: left;height:30px;border-radius:5px;'>"+
            "<div style='float:left;margin-left:10px;'>"+typename+"<input id='checkimage"+typename+"' type='checkbox' onclick='checkimage(\""+typename+"\")'/>图片</div>" +
            "<div style='height:30px;float:right;'>" +
            "<input type='text' id='"+typename+"attrnew' value='' />" +
            "<input type='button' value='添加属性' onclick='addattr(\""+typename+"\")'/>" +
            "<input type='button' value='删除分类' onclick='delete_type(\""+typename+"\")'/>" +
            "</div></div>"+
            "<div id='"+typename+"attrlist' style='background: #ffffff;width:500px;min-height:100px;overflow:hidden;'>" +
            "</div>"+
            "</div>";
        //document.getElementById('attrlist').innerHTML += html;
        $("#attrlist").append(html);
    }

    //设置是否上传图片
    function checkimage(typename) {
        var ischecked = document.getElementById("checkimage"+typename).checked;
        alert(typename+":"+ischecked);
        if (ischecked == true) {
            for(i = 0; i < global_type.length; i++) {
                //var curdispid = "dispup"+cur_attr_list[i];
                //document.getElementById(curdispid).style.display="block";
                if (global_type[i] == typename) {
                    continue;
                } else {
                    var isotherchecked = document.getElementById("checkimage"+global_type[i]).checked;
                    if (isotherchecked == true) {
                        alert(global_type[i]+"已被选中使用图片，如果要设置"+typename+"使用图片请先把其他使用图片的分类取消");
                        document.getElementById("checkimage"+typename).checked = false;
                        return false;
                    }
                }
            }
        }

        if (ischecked == true) {
            settypeimagetrue(typename)
        } else {
            settypeimagefalse(typename)
        }
    }

    //使一个分类下的attr支持上传图片
    function settypeimagetrue(typename) {
        var typeidx = global_type.indexOf(typename);
        var cur_attr_list;
        if (typeidx == 0) {
            cur_attr_list = attr_list_0;
        } else {
            cur_attr_list = attr_list_1;
        }
        for(i = 0; i < cur_attr_list.length; i++) {
            var curdispid = "dispup"+cur_attr_list[i];
            document.getElementById(curdispid).style.display="block";
        }
    }

    //使一个分类下的attr不支持上传图片
    function settypeimagefalse(typename) {
        var typeidx = global_type.indexOf(typename);
        var cur_attr_list;
        if (typeidx == 0) {
            cur_attr_list = attr_list_0;
        } else {
            cur_attr_list = attr_list_1;
        }
        for(i = 0; i < cur_attr_list.length; i++) {
            var curdispid = "dispup"+cur_attr_list[i];
            document.getElementById(curdispid).style.display="none";
            //清除图片
            document.getElementById("img"+cur_attr_list[i]).src="";
            document.getElementById("img"+cur_attr_list[i]).style.display="none";
            //清除file的选中文件
            document.getElementById("file"+cur_attr_list[i]).value='';
        }
    }

    //预览图片
    function preview(attrname) {
           var fileObj = document.getElementById("file"+attrname);
            var file=fileObj.files[0];
            var r = new FileReader();
            r.readAsDataURL(file);
        r.onload=function(e){
            document.getElementById("img"+attrname).src = e.target.result;
            document.getElementById("img"+attrname).style.display="block";
        }
    }

    //添加属性
    function addattr(typename) {
        var typeidx = global_type.indexOf(typename);
        var cur_attr_list;
        if (typeidx == 0) {
             cur_attr_list = attr_list_0;
        } else {
             cur_attr_list = attr_list_1;
        }
        var attrname = document.getElementById(typename+'attrnew').value;
        if (attr_list_0.indexOf(attrname)>=0) {
            alert(attrname+"已存在");
            return false;
        }
        if (attr_list_1.indexOf(attrname)>=0) {
            alert(attrname+"已存在");
            return false;
        }

        if (attrname == "") {
            alert("属性名称不可为空");
            return false;
        }
        cur_attr_list.push(attrname);
        var ischecked = document.getElementById("checkimage"+typename).checked;
        var imagetextdisp = "";
        if (ischecked == true) {
            imagetextdisp = "block";
        } else {
            imagetextdisp = "none";
        }
        var html = "<div id='attr"+attrname+"' style='margin-left:8px;margin-top:8px;width:80px;height:80px;line-height:80px;text-align:center;background: #eeeeee;float:left;border-radius:10px;position:relative;overflow:hidden;'>"+
                "<img id='img"+attrname+"' src='' style='position:absolute;width:80px;height:80px;display: none;' />"+
                "<div style='width:20px;height:20px;line-height:20px;background: #eeeeee;right:0px;position:absolute;text-align: center;' onclick='delete_attr(\""+typename+"\",\""+attrname+"\")'>x</div>"+
            "<div id='dispup"+attrname+"' style='width:80px;height:20px;opacity:0.9;line-height:20px;background: rgb(138, 138, 238);bottom:0px;position:absolute;text-align: center;display: "+imagetextdisp+";'>"+
            "<div style='position:relative;'>" +
            "<input type='file' name='file"+attrname+"' id='file"+attrname+"' onchange='preview(\""+attrname+"\")' style='position:absolute;z-index:100;width:80px;height:20px;left:0px;background: #ff0000;opacity:0;'/>"+
            "<div style='position: absolute;width:80px;height:20px;line-height:20px;opacity:0.9;font-size:12px;text-align:center;'>上传图片</div>"+
            "</div></div>"+
           attrname+
        "</div>";
        document.getElementById(typename+'attrlist').innerHTML += html;
        refresh_sku_list();
    }

    //删除分类
    function delete_type(typename) {
        if (confirm("确认删除分类:"+typename+"吗？") == false) {
            return false;
        }
        //清空数组
        var typeidx = global_type.indexOf(typename);
        if (typeidx == 0) {
            attr_list_0.length = 0;
            //如果删除的是第一个分类?
            attr_list_0 = attr_list_1.concat();
            attr_list_1.length = 0;
        } else {
            attr_list_1.length = 0;
        }

        //从type数组中删除
        var typeidx = global_type.indexOf(typename);
        global_type.splice(typeidx,1);

        //从div中删除
        $("#type"+typename).remove();
        //刷新sku
        refresh_sku_list();
    }

    //删除属性
    function delete_attr(typename,attrname) {
        if (confirm("确认删除属性:"+attrname+"吗？") == false) {
            return false;
        }
        var typeidx = global_type.indexOf(typename);
        //alert(typename+";idx:"+typeidx);
        var cur_attr_list;
        if (typeidx == 0) {
            cur_attr_list = attr_list_0;
        } else {
            cur_attr_list = attr_list_1;
        }
        //从数组中删除
        var attridx = cur_attr_list.indexOf(attrname);
        cur_attr_list.splice(attridx,1);
        //从div中删除
        $("#attr"+attrname).remove();
        //刷新sku
        refresh_sku_list();
    }

    //刷新sku列表
    function refresh_sku_list() {
        //只有一个为空
        if (attr_list_0.length == 0 && attr_list_1.length == 0) {
            document.getElementById('skulist').innerHTML = "";
        }

        if (attr_list_0.length > 0 && attr_list_1.length == 0) {
            var html = "<div style='border-radius:8px;margin-left:5px;width:490px;background:#eeeeee;'>"+
                "<div style='padding-left:10px;width:200px;float:left;'>属性</div>"+
                "<div style='width:100px;float:left;'>价格</div>"+
                "<div style='width:100px;float:left;'>库存</div>"+
                "</div>";
            document.getElementById('skulist').innerHTML = html;
            //
            //if (attr_list_0.length)
            var htmlattr= "<div style='border-radius:8px;margin-left:5px;margin-top:10px;width:490px;background:#eeeeee;display: flex;flex-direction: column;'>";
            for(i = 0; i < attr_list_0.length; i++) {
                htmlattr += "<div>"+
                    "<div style='padding-left:10px;width:200px;float:left;'>"+attr_list_0[i]+"</div>"+
                    "<div style='width:100px;float:left;'><input type='text' name='price_'"+attr_list_0[i]+" value='0.00'></div>"+
                    "<div style='width:100px;float:left;'><input type='text' name='stock_'"+attr_list_0[i]+" value='0'></div>"+
                    "</div>";
            }
            htmlattr +="</div>";
            document.getElementById('skulist').innerHTML += htmlattr;
        }

        if (attr_list_0.length > 0 && attr_list_1.length > 0) {
            var html = "<div style='border-radius:8px;margin-left:5px;width:490px;background:#eeeeee;'>"+
                "<div style='padding-left:10px;width:210px;float:left;'>属性</div>"+
                "<div style='width:100px;float:left;'>价格</div>"+
                "<div style='width:120px;float:left;'>库存</div>"+
                "</div>";
            document.getElementById('skulist').innerHTML = html;

            //得到每大行高度
            var blockheight = attr_list_1.length*30;
            for(i = 0; i < attr_list_0.length; i++) {
                var html = "<div style='background: #eeeeee;border-radius: 5px;margin-left:5px;margin-top:5px;width:490px;'>"+
                    "<div style='padding-left:10px;width:90px;float:left;height:"+blockheight+"px;line-height:"+blockheight+"px;'>"+attr_list_0[i]+"</div>"+
                    "<div style='width:380px;float:left;display: flex;flex-direction: column;'>";

                for(j = 0; j < attr_list_1.length; j++) {
                    html += "<div style='width:400px;'><div style='width:100px;float:left;height:30px;line-height:30px;'>"+attr_list_1[j]+"</div>"+
                            "<div style='float:left;width:100px;'><input type='text' id='price_"+attr_list_0[i]+"_"+attr_list_1[j]+"' value='0.00'></div>"+
                            "<div style='float:left;width:100px;'><input type='text' id='stock_"+attr_list_0[i]+"_"+attr_list_1[j]+"' value='0'></div></div>";
                }
                html += "</div>"+
                    "</div>";
                document.getElementById('skulist').innerHTML += html;
            }
        }
    }

    //提交sku的数据
    function savesku(goodsId) {
        //alert(goodsId);
        var postdata = {};
        postdata['goodsId'] = goodsId;
        var typelist = [];
        //得到两个分类
        for(i = 0; i < global_type.length; i++) {
            var typeobj = {"typeName":global_type[i]};
            var isotherchecked = document.getElementById("checkimage"+global_type[i]).checked;
            if (isotherchecked == true) {
                typeobj["isImage"] = 1;
            } else {
                typeobj["isImage"] = 0;
            }

            //得到下面的属性:
            var cur_attr_list;
            if (i == 0) {
                cur_attr_list = attr_list_0;
            } else {
                cur_attr_list = attr_list_1;
            }
            var attrlist=[];
            for(j = 0; j < cur_attr_list.length; j++) {
                attrlist.push(cur_attr_list[j]);
            }
            typeobj['attrList'] = attrlist;

            //typeobj
            typelist.push(typeobj);
        }

        postdata["typeList"] = typelist;

        //遍历sku:
        var skulist = [];
        for(i = 0; i < attr_list_0.length; i++) {
            for(j = 0; j < attr_list_1.length; j++) {
                var key = attr_list_0[i]+"_"+attr_list_1[j];
                var price = document.getElementById('price_'+key).value;
                var stock = document.getElementById('stock_'+key).value;
                var skuone = {"key":key,"price":price,"stock":stock};
                skulist.push(skuone);
            }
        }

        postdata["skuList"] = skulist;

        var filelist = [];
        var cur_attr_list;
        if (i == 0) {
            cur_attr_list = attr_list_0;
        } else {
            cur_attr_list = attr_list_1;
        }
        for(i = 0; i < global_type.length; i++) {
            var typeobj = {"typename": global_type[i]};
            var isotherchecked = document.getElementById("checkimage" + global_type[i]).checked;
            if (isotherchecked == true) {
                if (i == 0) {
                    cur_attr_list = attr_list_0;
                } else if (i == 1) {
                    cur_attr_list = attr_list_1;
                }
            }
        }
        //var postdatafile = {};
        var postdatafile=new FormData();
        //
        for(i = 0; i < cur_attr_list.length; i++) {
            var fileid = "file"+cur_attr_list[i];
            if ("undefined" == typeof($("#"+fileid)[0].files[0])) {
                continue;
            } else {
                //
                var fileobj = {"fileName":cur_attr_list[i],"file":$("#"+fileid)[0].files[0]};
                postdatafile.append(["file_"+cur_attr_list[i]],$("#"+fileid)[0].files[0]);
                filelist.push(fileobj);
            }
        }
        postdata["fileList"] = filelist;
        console.log(postdata);

        var postdatajson = {};
        //postdatafile['json'] = JSON.stringify(postdata);
        postdatafile.append("json",JSON.stringify(postdata));
        console.log(postdatafile);
        alert("begin ajax");
        $.ajax({
            type:"POST",
            url:"/goods/skuadded",
            data:postdatafile,
            //返回数据的格式
            datatype: "text",//"xml", "html", "script", "json", "jsonp", "text".
            processData:false, // 将数据转换成对象，不对数据做处理，故 processData: false
            contentType:false,    // 不设置数据类型
            //成功返回之后调用的函数
            success:function(data){
                alert(data);
            },
            //调用执行后调用的函数
            complete: function(XMLHttpRequest, textStatus){
                //alert(XMLHttpRequest.responseText);
                //alert(textStatus);
            },
            //调用出错执行的函数
            error: function(){
                //请求出错处理
                alert('error');
            }
        });
    }
</script>
</body>
</html>

六，测试效果

1,测试提交排序值：

访问:

http://127.0.0.1:8080/goods/image?goodsId=2

如图:

服务端能正确接收到图片id和提交的图片的排序值

2,测试提交创建商品sku:

访问:

http://127.0.0.1:8080/goods/sku?goodsId=2

如图:

可以看到服务端可以接收到属性对应的图片文件和属性的对应关系，以及sku的价格库存信息

七，查看spring boot版本

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v2.3.4.RELEASE)