fix small warning

src/main/java/au/com/royalpay/payment/manage/riskbusiness/core/impl/RiskBusinessServiceImpl.java

@@ -2,7 +2,6 @@ package au.com.royalpay.payment.manage.riskbusiness.core.impl;
 
 import au.com.royalpay.payment.core.exceptions.EmailException;
 import au.com.royalpay.payment.core.exceptions.InvalidShortIdException;
-import au.com.royalpay.payment.core.exceptions.OrderNotExistsException;
 import au.com.royalpay.payment.core.exceptions.OrderNotMatchException;
 import au.com.royalpay.payment.manage.mappers.log.AppMessageLogMapper;
 import au.com.royalpay.payment.manage.mappers.payment.OrderMapper;
@@ -11,9 +10,9 @@ import au.com.royalpay.payment.manage.mappers.riskbusiness.RiskEventMapper;
 import au.com.royalpay.payment.manage.mappers.riskbusiness.RiskFileMapper;
 import au.com.royalpay.payment.manage.mappers.riskbusiness.RiskMaterialMapper;
 import au.com.royalpay.payment.manage.mappers.riskbusiness.RiskOrdersMapper;
+import au.com.royalpay.payment.manage.mappers.system.ClientBDMapper;
 import au.com.royalpay.payment.manage.mappers.system.ClientDeviceTokenMapper;
 import au.com.royalpay.payment.manage.mappers.system.ClientMapper;
-import au.com.royalpay.payment.manage.mappers.system.ClientBDMapper;
 import au.com.royalpay.payment.manage.notice.core.MailService;
 import au.com.royalpay.payment.manage.pushMessage.APNSMessageHelper;
 import au.com.royalpay.payment.manage.pushMessage.bean.AppManagerMessageBuilder;
@@ -21,31 +20,32 @@ import au.com.royalpay.payment.manage.riskbusiness.core.RiskBusinessService;
 import au.com.royalpay.payment.manage.riskbusiness.core.RiskMaterialService;
 import au.com.royalpay.payment.manage.riskbusiness.core.RiskProcessLogService;
 import au.com.royalpay.payment.manage.riskbusiness.enums.RiskEmailStatusEnum;
+import au.com.royalpay.payment.manage.riskbusiness.enums.RiskOrderTypeEnum;
 import au.com.royalpay.payment.manage.riskbusiness.enums.RiskResultTypeEnum;
 import au.com.royalpay.payment.manage.signin.beans.TodoNotice;
 import au.com.royalpay.payment.manage.signin.core.ManagerTodoNoticeProvider;
 import au.com.royalpay.payment.manage.tradelog.core.TradeLogService;
-import au.com.royalpay.payment.manage.riskbusiness.enums.RiskOrderTypeEnum;
 import au.com.royalpay.payment.tools.device.message.AppMessage;
 import au.com.royalpay.payment.tools.device.message.AppMsgSender;
 import au.com.royalpay.payment.tools.env.PlatformEnvironment;
 import au.com.royalpay.payment.tools.exceptions.BadRequestException;
+import au.com.royalpay.payment.tools.exceptions.ServerErrorException;
 import au.com.royalpay.payment.tools.locale.LocaleSupport;
 import au.com.royalpay.payment.tools.permission.enums.ManagerRole;
-import au.com.royalpay.payment.tools.exceptions.ServerErrorException;
 import au.com.royalpay.payment.tools.threadpool.RoyalThreadPoolExecutor;
 import au.com.royalpay.payment.tools.utils.PageListUtils;
-import com.alibaba.fastjson.JSON;
 import com.alibaba.fastjson.JSONObject;
 import com.github.miemiedev.mybatis.paginator.domain.Order;
 import com.github.miemiedev.mybatis.paginator.domain.PageBounds;
 import com.github.miemiedev.mybatis.paginator.domain.PageList;
-import org.apache.commons.codec.binary.Base64;
 import org.apache.commons.lang3.RandomStringUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.apache.commons.lang3.time.DateFormatUtils;
 import org.apache.commons.lang3.time.DateUtils;
-import org.apache.poi.ss.usermodel.*;
+import org.apache.poi.ss.usermodel.Cell;
+import org.apache.poi.ss.usermodel.Row;
+import org.apache.poi.ss.usermodel.Sheet;
+import org.apache.poi.ss.usermodel.Workbook;
 import org.apache.poi.xssf.usermodel.XSSFWorkbook;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -55,17 +55,19 @@ import org.springframework.transaction.annotation.Transactional;
 import org.thymeleaf.context.Context;
 import org.thymeleaf.spring4.SpringTemplateEngine;
 
+import javax.annotation.Resource;
 import javax.servlet.http.HttpServletResponse;
-import java.io.*;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
 import java.net.URL;
 import java.text.ParseException;
 import java.util.*;
-import javax.annotation.Resource;
 import java.util.concurrent.LinkedBlockingQueue;
 import java.util.concurrent.ThreadPoolExecutor;
+import java.util.concurrent.TimeUnit;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipOutputStream;
-import java.util.concurrent.TimeUnit;
 
 /**
  * @Author lvjian
@@ -367,7 +369,7 @@ public class RiskBusinessServiceImpl implements RiskBusinessService, ManagerTodo
         param.put("orderby_type", "update_time");
         JSONObject riskMaterial = getRiskMaterial(param);
         try {
-            String downloadFilename = clientMoniker + "_audit_materials_" + DateFormatUtils.format(new Date(), "dd/MM/yyyy HH:mm:ss").toString() + ".zip";
+            String downloadFilename = clientMoniker + "_audit_materials_" + DateFormatUtils.format(new Date(), "dd/MM/yyyy HH:mm:ss") + ".zip";
             response.setContentType("application/octet-stream");
             response.setHeader("Content-Disposition", "attachment;filename=" + downloadFilename);
             ZipOutputStream zos = new ZipOutputStream(response.getOutputStream());