二维码提交

common/src/main/java/com/winsun/utils/PicturesUtil.java

@@ -11,6 +11,7 @@ import java.util.Base64;
 import java.util.Date;
 
 /**
+ * 二维码海报工具类
  * @Author: chancy
  * @Date: 2020/3/12 14:33
  */
@@ -22,7 +23,7 @@ public class PicturesUtil {
      * <p>
      * 前端传来图片必须为jpeg格式
      *
-     * @param file 图片字符串
+     * @param file 图片base64字符串
      * @param path 图片文件夹名
      * @return
      */
@@ -71,9 +72,26 @@ public class PicturesUtil {
         String enclosure = filePath.replace("enclosure", "manager/ciop");
         return enclosure;
     }
+
+    /**
+     * 海报删除图片
+     * @param fileName 删除图片地址
+     * @return
+     */
     public static boolean deletePictures(String fileName){
         File file = new File(fileName.replace("manager/ciop","enclosure"));
-        boolean delete = file.delete();
-        return delete;
+        Boolean flag = false;
+        //判断文件是否存在
+        if (file.exists() == true){
+            flag = file.delete();
+            if (flag){
+                log.info("成功删除海报背景图片"+file.getName());
+            }else {
+                log.info("海报背景图片删除失败");
+            }
+        }else {
+            log.info("图片不存在，终止操作");
+        }
+        return flag;
     }
 }

service-manager/src/main/java/com/winsun/controller/QRCodeController.java

@@ -85,6 +85,26 @@ public class QRCodeController extends BaseController {
         return ResponseData.success(page, "查询成功！");
     }
 
+    /**
+     *移动端查询二维码图片列表
+     * @param enable
+     * @param size
+     * @return
+     */
+    @RequestMapping(value = "select", method = RequestMethod.POST)
+    public ResponseData<List<QRCode>> selectPicture(@RequestParam(name = "enable") String enable,@RequestParam(name = "size")Integer size) {
+        Wrapper<QRCode> wrapper = new EntityWrapper();
+        wrapper.eq(StringUtils.isNotBlank(enable),"enable",enable);
+       List<String> objects = new ArrayList<>();
+        objects.add("create_time");
+        wrapper.orderDesc(objects);
+        wrapper.last("limit "+size +" "+(size+1));
+        List<QRCode> qrCodes = qrCodeMapper.selectList(wrapper);
+        if(qrCodes.size()==0){
+            return ResponseData.error("没有生成二维码的背景图！");
+        }
+        return ResponseData.success(qrCodes, "查询成功！");
+    }
 
     /**
      * 删除二维码图片
@@ -97,7 +117,10 @@ public class QRCodeController extends BaseController {
         if (!user.getRoleNames().stream().anyMatch(roleName -> StringUtils.equalsAny(roleName, "超级管理员"))) {
             return ResponseData.error("无数据权限");
         }*/
+        QRCode qrCode = qrCodeMapper.selectById(id);
+        PicturesUtil.deletePictures(qrCode.getPicture());
         qrCodeMapper.deleteById(id);
+
         return ResponseData.success("删除成功！");
     }