完善二维码下载功能

zhibing.pu

2024-08-26 25c8b9a4f52718e8909cee652d58fd6cfd2f4cc3

 ruoyi-service/ruoyi-chargingPile/src/main/java/com/ruoyi/chargingPile/controller/TChargingGunController.java

@@ -1,6 +1,7 @@
package com.ruoyi.chargingPile.controller;


import cn.hutool.core.io.FileUtil;
import com.ruoyi.chargingPile.api.dto.TChargingGunDTO;
import com.ruoyi.chargingPile.api.model.TChargingGun;
import com.ruoyi.chargingPile.api.model.TChargingPile;
@@ -8,8 +9,10 @@
import com.ruoyi.chargingPile.api.vo.TChargingGunVO;
import com.ruoyi.chargingPile.service.TChargingGunService;
import com.ruoyi.chargingPile.service.TChargingPileService;
import com.ruoyi.chargingPile.util.QRCodeUtils;
import com.ruoyi.common.core.domain.R;
import com.ruoyi.common.core.web.domain.AjaxResult;
import com.ruoyi.common.core.web.domain.BaseDelete;
import com.ruoyi.common.core.web.page.PageInfo;
import com.ruoyi.common.log.annotation.Log;
import com.ruoyi.common.log.enums.BusinessType;
@@ -21,6 +24,10 @@

import javax.annotation.Resource;
import javax.servlet.http.HttpServletResponse;
import java.io.FileInputStream;
import java.io.PrintWriter;
import java.net.URLEncoder;
import java.util.Arrays;
import java.util.List;

/**
@@ -102,8 +109,9 @@
    @Log(title = "批量删除充电枪", businessType = BusinessType.DELETE,operatorType = OperatorType.MANAGE)
    @ApiOperation(tags = {"后台-充电枪"},value = "批量删除充电枪")
    @DeleteMapping(value = "/deleteByIds")
    public AjaxResult<Boolean> deleteByIds(@RequestBody List<Integer> ids) {
        return AjaxResult.ok(chargingGunService.removeByIds(ids));
    public AjaxResult<Boolean> deleteByIds(@RequestParam String ids) {
        String[] split = ids.split(",");
        return AjaxResult.ok(chargingGunService.removeByIds(Arrays.asList(split)));
    }

    /**
@@ -111,8 +119,8 @@
     */
    @Log(title = "结束充电", businessType = BusinessType.UPDATE,operatorType = OperatorType.MANAGE)
    @ApiOperation(tags = {"后台-充电枪"},value = "结束充电")
    @PostMapping(value = "/stopCharging")
    public AjaxResult<String> stopCharging() {
    @PutMapping(value = "/stopCharging")
    public AjaxResult<String> stopCharging(@RequestParam("id") Integer id) {
        // TODO 硬件 结束充电
        return AjaxResult.success();
    }
@@ -122,7 +130,26 @@
    @ApiOperation(tags = {"管理后台-充电桩信息"},value = "下载二维码")
    @GetMapping(value = "/downloadQRCode/{id}")
    public void downloadQRCode(@PathVariable Integer id, HttpServletResponse response){
        // todo 待完善
        try {
            TChargingGun chargingGun = chargingGunService.getById(id);
            response.setContentType("image/jpeg");
            response.setHeader("Content-Disposition","attachment; filename=" + URLEncoder.encode(chargingGun.getName(), "UTF-8") + ".jpeg");
            String url = "https://www.baidu.com?id=" + id;
            String filePath = "";
            QRCodeUtils.encode(url, filePath);
            FileInputStream inputStream = new FileInputStream(filePath);
            PrintWriter out = response.getWriter();
            int len = 0;
            byte[] buf = new byte[1024];
            while ((len = inputStream.read(buf, 0, 1024)) != -1) {
                out.println(buf);
            }
            out.flush();
            out.close();
            inputStream.close();
        }catch (Exception e){
            e.printStackTrace();
        }
    }