4dkankan-center-manage/src/main/java/com/fdkankan/manage/controller/ExcelController.java

package com.fdkankan.manage.controller;

import cn.hutool.poi.word.WordUtil;
import com.alibaba.nacos.common.codec.Base64;
import com.fdkankan.manage.common.ResultCode;
import com.fdkankan.manage.exception.BusinessException;
import com.fdkankan.common.response.ResultData;
import com.fdkankan.manage.service.IExcelService;
import org.apache.commons.io.FileUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URLEncoder;
import java.nio.charset.StandardCharsets;

@RestController
@RequestMapping("/service/manage/excel")
public class ExcelController {

    @Autowired
    IExcelService excelService;

    /**
     * 下载出入库模板
     * type 0 入库模板， 1出库模板 ，2 客户关联模板
     */
    @GetMapping("/downTemplate")
    public void downInTemplate(@RequestParam(required = false,defaultValue = "0") Integer type,
                               HttpServletResponse res, HttpServletRequest req) throws IOException {
        String fileName = "";
        switch (type){
            case 0 : fileName = "cameraIn.xlsx"; break;
            case 1 : fileName = "cameraOut.xlsx"; break;
            case 2 : fileName = "cameraCompany.xlsx"; break;
            default: throw new BusinessException(ResultCode.MISSING_REQUIRED_PARAMETERS);
        }
        InputStream inputStream = this.getClass().getClassLoader().getResourceAsStream("template/"+fileName);
        OutputStream os = res.getOutputStream();
        try {
            String agent = req.getHeader("USER-AGENT");
            if (agent != null && !agent.contains("MSIE") && !agent.contains("like Gecko")) {// FF
                String enableFileName = "=?UTF-8?B?" + (new String(Base64.encodeBase64(fileName.getBytes(StandardCharsets.UTF_8))))
                        + "?=";
                res.setHeader("Content-Disposition", "attachment; filename=" + enableFileName);
            } else { // IE
                String enableFileName = URLEncoder.encode(fileName, "UTF-8");
                res.setHeader("Content-Disposition", "attachment; filename=" + enableFileName);
            }
            File file = new File(fileName);
            FileUtils.copyInputStreamToFile(inputStream,file);
            os.write(FileUtils.readFileToByteArray(file));
            os.flush();
        } finally {
            os.close();
        }
    }
    /**
     * 导入excel
     * type 0 入库模板， 1出库模板 ，2 客户关联模板
     */
    @PostMapping("/uploadExcel")
    public ResultData uploadExcel(@RequestParam(required = false) MultipartFile file,
                                  @RequestParam(required = false,defaultValue = "0") Integer type) throws IOException {
        return ResultData.ok(excelService.uploadExcel(file,type));
    }



}