1、引入优化

src/main/java/com/ydtech/modules/inv/controller/InvExternalBillsController.java

@@ -6,7 +6,6 @@ import cn.afterturn.easypoi.excel.entity.enmus.ExcelType;
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.baomidou.mybatisplus.core.metadata.IPage;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
-import com.sun.deploy.net.URLEncoder;
 import com.ydtech.core.page.HttpResult;
 import com.ydtech.core.page.PageRequest;
 import com.ydtech.core.page.PageResult;

src/main/java/com/ydtech/utils/excel/ExcelEasypoiUtils.java

@@ -4,17 +4,14 @@ import cn.afterturn.easypoi.excel.ExcelExportUtil;
 import cn.afterturn.easypoi.excel.ExcelImportUtil;
 import cn.afterturn.easypoi.excel.entity.ExportParams;
 import cn.afterturn.easypoi.excel.entity.ImportParams;
-import cn.afterturn.easypoi.excel.entity.enmus.ExcelType;
-import com.sun.deploy.net.URLEncoder;
 import com.ydtech.exception.SystemException;
-import com.ydtech.modules.inv.model.InvInsExternalBillsDetails;
 import org.apache.poi.ss.usermodel.Workbook;
 import org.springframework.web.multipart.MultipartFile;
 
-import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import java.io.IOException;
 import java.io.UnsupportedEncodingException;
+import java.net.URLEncoder;
 import java.util.List;
 
 /**