luking的博客

注入String及默认值

import bootandredis.demo.mapper.BookMapper;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotat...

通用mapper的条件查询1.所需引入的类import tk.mybatis.mapper.entity.Example;import tk.mybatis.mapper.entity.Example.Criteria;注：此为通用Mapper2.1.5的限定名。2.初始化查询条件，需指定要操作的pojo实体类，此例中操作BookExample example=new Examp...

1.安装erlang：参考https://packagecloud.io/rabbitmq/erlang/install#bash-rpm下的rpmcurl -shttps://packagecloud.io/install/repositories/rabbitmq/erlang/script.rpm.sh| sudo bash2.安装rabbitMQ-server：参考https:...

Redisson实现集群环境下的分布式锁十分简单：引入依赖<?xml version="1.0" encoding="UTF-8"?><project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:sc...