springcloud中项目的文件上传

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//请求使用下面的请求方式，来进行获取数据
HttpServletRequest request

//在方法中的处理的形式
 request.getParameter("cmmodity_attribute");

2.使用map的形式获取文件的上传的内容
@RequestParam Map<String, Object> req,

注意要添加 注解才行

public Map saveProductTaskItemStatus(/*HttpServletRequest request,*/
            @RequestParam Map<String, Object> req,
            @RequestParam(value = "cate_csv", required = false) MultipartFile cateCsv,
            @RequestParam(value = "brand_csv", required = false) MultipartFile brandCsv,
            @RequestParam(value = "sku_csv", required = false) MultipartFile skuCsv) {
//        String string = request.getParameter("cmmodity_attribute");
//        System.out.println(json);
//        HashMap<String, Object> req = new HashMap<>();
        logger.info("saveProductTaskItemStatus 请求数据为 \n" + req.toString());
        RequestHead header = null;

 

csv导入的工具类

package com.leyou.apollo.promotion.utils;

import com.leyou.apollo.promotion.api.res.group.Group;
import org.springframework.web.multipart.MultipartFile;

import java.io.*;
import java.util.HashSet;
import java.util.List;


/**
 * csv导入的时候用到的工具类
 *
 * @author LT
 * @date 3.14
 */
public class CsvUtill {


    public static HashSet<String> importCsv(MultipartFile picFile) throws Exception {
        int a = 0;

        HashSet<String> objects = new HashSet<>();
        // 判断是否为空
        if (picFile.isEmpty()) {
            return null;
        }
//        csv文件默认编码为ANSI，这里出现乱码主要是编码不一致问题 参考博课
//        DataInputStream in = new DataInputStream(new FileInputStream(new File("d:\\*.csv")));
//        BufferedReader br= new BufferedReader(new InputStreamReader(in,"GBK"));

        DataInputStream dataInputStream = new DataInputStream(picFile.getInputStream());
        BufferedReader br = new BufferedReader(new InputStreamReader(dataInputStream, "utf-8"));
//        InputStreamReader ins = new InputStreamReader(inputStream);
//        BufferedReader br = new BufferedReader(ins);

        String line = "";
        while ((line = br.readLine()) != null) {
            //将第一行的数据不进行导入

            if (a == 0) {
                a = a + 1;
            } else {
                //转成流文件后，就可以自己处理了
                objects.add(line);
            }

        }
        return objects;

    }

    /**
     * 导出CSV 商品组
     *
     * @param file
     * @param
     * @return
     */
    public static boolean exportGroupCsv(File file, List<Group> groups) {
        boolean isSucess = false;
        FileOutputStream out = null;
        OutputStreamWriter osw = null;
        BufferedWriter bw = null;

        try {
            out = new FileOutputStream(file);
            osw = new OutputStreamWriter(out, "utf-8");
            bw = new BufferedWriter(osw);
            if (groups != null && !groups.isEmpty()) {
                bw.write("商品组编号" + "," + "商品组名称" + "," + "商品子组名称" + "," + "子组关系" + "," + "商品组类型" +
                        "," + "数据编号" + "," + "数据名称");
                bw.write("\r\n");
//		                for(PrdProdgrpsubForCSV data : prdProdgrpsubdetailAll){
//		                    bw.write(data.getName()+","+data.getProdgrpsubname()+","+data.getIsnecessary()+","+data.getType()+","+data.getTextId()+","+data.getText());
//		                    bw.write("\r\n");
//		                }
                for (Group group : groups) {
                    bw.write(group.getProdgrpId() + "," + group);
                }
            }
            isSucess = true;
        } catch (Exception e) {
            isSucess = false;
            e.printStackTrace();
        } finally {
            if (bw != null) {
                try {
                    bw.close();
                    bw = null;
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if (osw != null) {
                try {
                    osw.close();
                    osw = null;
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            if (out != null) {
                try {
                    out.close();
                    out = null;
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }

        return isSucess;
    }


//		    public static void main(String[] args) {
//		    	 List<String> dataList=new ArrayList<String>();
//			        dataList.add("1,张三,男");
//			        dataList.add("2,李四,男");
//			        dataList.add("3,小红,女");
//			        boolean isSuccess=CsvUtill.exportCsv(new File("C:/Users/Administrator/Desktop/11.csv"), dataList);
//			        System.out.println(isSuccess);
//			}
//		    
//		  

}