2022 年 12月随笔档案 - 蜗牛无敌

java aop 打印controller的入参和出参

摘要：package com.sleep.demo.intercepter; import com.alibaba.fastjson.JSONObject; import lombok.extern.slf4j.Slf4j; import org.apache.commons.lang3.ArrayUti 阅读全文

posted @ 2022-12-30 17:13 蜗牛无敌阅读(996) 评论(0) 推荐(0)

java 多线程并行执行任务 demo

摘要：package com.sleep.demo; import org.apache.commons.lang3.StringUtils; import java.util.*; import java.util.concurrent.*; import java.util.concurrent.at 阅读全文

posted @ 2022-12-30 14:53 蜗牛无敌阅读(839) 评论(0) 推荐(0)

java 读取json文件到对象

摘要：1、新建json文件 [ { "id": 1, "name": "酒水专区", "imageUrl": "7cf/e61b0aec87f07393.png", "previewImageUrl": "/9f8d4360d3a125b5.png" }, { "id": 2, "name": "日用百货阅读全文

posted @ 2022-12-30 14:44 蜗牛无敌阅读(2692) 评论(0) 推荐(0)

springboot HandlerIntercept

摘要：1、新建上下文类工具类 public class ContextHolder { private static final InheritableThreadLocal<RequestContext> REQUEST_CONTEXT_INHERITABLE_THREAD_LOCAL = new In 阅读全文

posted @ 2022-12-30 14:32 蜗牛无敌阅读(56) 评论(0) 推荐(0)

定时300 + 300 随机缓存类

摘要：@Component public class ProductCacheKeyService { private static String PRODUCT_BASE_INFO = "product_info_%s"; //商品信息BIG KEY private Random random = ne 阅读全文

posted @ 2022-12-28 14:34 蜗牛无敌阅读(13) 评论(0) 推荐(0)

zookeeper的安装

摘要：zookeeper的安装1、下载wget --no-check-certificate --no-cookies https://downloads.apache.org/zookeeper/zookeeper-3.8.0/apache-zookeeper-3.8.0-bin.tar.gz2、解压t 阅读全文

posted @ 2022-12-27 21:52 蜗牛无敌阅读(25) 评论(0) 推荐(0)

jdk1.8的安装 linux

摘要：1、下载 wget --no-check-certificate --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/ 阅读全文

posted @ 2022-12-27 21:28 蜗牛无敌阅读(27) 评论(0) 推荐(0)

jdk 1.8 多线程

摘要：package com.sleep.demo; import org.springframework.util.CollectionUtils; import java.util.ArrayList; import java.util.List; import java.util.Random; i 阅读全文

posted @ 2022-12-23 11:39 蜗牛无敌阅读(160) 评论(0) 推荐(0)

12 2022 档案

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