*

lsh

6 天以前 91cfc50d5231ffa6e1e9a86e12bd68f3efa57e50

 src/main/java/com/zy/common/web/FileController.java

@@ -1,51 +1,52 @@
package com.zy.common.web;

import com.alibaba.excel.EasyExcel;
import com.zy.common.utils.excel.EnInitData;
import com.zy.common.utils.excel.matcode.MatCodeExcelListener;
import com.zy.common.utils.excel.ExcelUtils;
import com.core.common.BaseRes;
import com.core.common.Cools;
import com.core.common.R;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import com.zy.common.config.AdminInterceptor;
import com.zy.common.utils.BarcodeUtils;
import com.zy.common.utils.QrCode;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import javax.imageio.ImageIO;
import javax.servlet.http.HttpServletResponse;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.net.URLEncoder;

/**
 * todo
 * Created by vincent on 2019-11-25
 */
@Controller
@RequestMapping("excel/")
@RestController
@RequestMapping("file/")
public class FileController {

    /**
     * 文件上传
     */
    @PostMapping("upload")
    @ResponseBody
    public R upload(MultipartFile file) throws IOException {
        EasyExcel.read(file.getInputStream(), EnInitData.class, new MatCodeExcelListener()).sheet().doRead();
  
    @RequestMapping(value = "/barcode/qrcode/auth")
//    @ManagerAuth(memo = "商品编号条形码获取(type:1(条形码);2(二维码)")
    public R matCodeBarcode(@RequestParam(defaultValue = "1") Integer type
                            , @RequestParam String param
                            , @RequestParam(required = false) Integer width
                            , @RequestParam(required = false) Integer height
                            , HttpServletResponse response) throws Exception {
        AdminInterceptor.cors(response);
        if (Cools.isEmpty(param)){
            return R.parse(BaseRes.EMPTY);
        }
        BufferedImage img;
        if (type == 1) {
            img = BarcodeUtils.encode(param, width, height);
        } else {
            img = QrCode.createImg(param, width, height);
        }
        if (!ImageIO.write(img, "jpg", response.getOutputStream())) {
            throw new IOException("Could not write an image of format jpg");
        }
        response.getOutputStream().flush();
        response.getOutputStream().close();
        return R.ok();
    }

    /**
     * 文件下载（失败了会返回一个有部分数据的Excel）
     */
    @GetMapping("download")
    public void download(HttpServletResponse response) throws IOException {
        // 这里注意 有同学反应使用swagger 会导致各种问题，请直接用浏览器或者用postman
        response.setContentType("application/vnd.ms-excel");
        response.setCharacterEncoding("utf-8");
        // 这里URLEncoder.encode可以防止中文乱码 当然和easyexcel没有关系
        String fileName = URLEncoder.encode("测试", "UTF-8");
        response.setHeader("Content-disposition", "attachment;filename=" + fileName + ".xlsx");
        EasyExcel.write(response.getOutputStream(), EnInitData.class).sheet("模板").doWrite(ExcelUtils.data());
    }

}