摘要：正序 list.sort(Comparator.comparing(VO::getSort)); 倒序 list.sort(Comparator.comparing(VO::getSort).reversed()); 阅读全文

摘要：//单个对象复制，使用org.springframework.beans.BeanUtils BeanUtils.copyProperties(oldVO, newVO); //list List<NewListVO> newList = JSON.parseArray(JSON.toJSONStr 阅读全文

摘要：import org.springframework.data.redis.core.StringRedisTemplate; @Autowired private StringRedisTemplate stringRedisTemplate; public static final String 阅读全文

摘要：private static final String PACKAGE_CODE_KEY = "key:no:"; private static final Integer defaultExpireTime = 1; @Override public String generateNo(Strin 阅读全文

摘要：1.Service接口 public interface ExcelExportService { ResponseEntity<byte[]> exportExcel() throws IOException; } 2.Service接口实现类 package com.test.service.t 阅读全文