芳華Youthred

Just writing

Linux查看端口监听占用

1 2 3 4 5 6 7 8 9 10 11 # 查看所有 netstat -ntlp # 过滤PORT8080 netstat -ntlp | grep 8080 -t # 仅显示tcp相关选项 -u # 仅显示udp相关选项 -n # 拒绝显示别名，能显示数字的全部转化为数字 -l # 仅列出在Listen(监听)的服务状态 -p # 显示建立相关链接的程序名

Posted by youthred on April 15, 2021

SpringBoot下的异步线程池

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 package net.add1s.config.thread; import org.springframe...

Posted by youthred on April 15, 2021

vue+bootstrap4+mybatis分页

Springboot+Mybatis+Pagehelper分页具体实现略。 Controller返回数据 1 2 3 4 5 @GetMapping("/findByPage") public AjaxResult findByPage(@RequestParam("pageIndex") Integer pageIndex, @RequestParam("pageSize"...

Posted by youthred on April 15, 2021

Elasticsearch7.6.x允许head-master跨域访问

修改config/elasticsearch.yml文件 1 2 3 4 # 开启跨域 http.cors.enabled: true # 允许所有 http.cors.allow-origin: "*"

Posted by youthred on April 15, 2021

Oracle使用SQL语句添加序列

1 2 3 4 5 6 CREATE SEQUENCE SEQ_XXX MINVALUE 1 NOMAXVALUE INCREMENT BY 1 START WITH 1 CACHE 5;

Posted by youthred on April 15, 2021

利用vue的监听和动态class绑定

这里模拟检测输入的字符串是否为“admin” html 1 2 3 4 5 6 <div id="loginFrom" class="form-group has-feedback" :class="checkStatus.hasClass"> <div> <input name="username" type="text" cl...

Posted by youthred on April 15, 2021

HttpServletRequest获取访问者真实IP

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 package net.add1s.util; import javax.servlet.http.HttpServletRequest; imp...

Posted by youthred on April 15, 2021

vue+js实时监听屏幕高度实现目标DIV垂直居中

html 前端样式使用的BootstrapV3，最开始在获取#main的高度的时候用$('#main').height()得到的结果一直为0，网上浏览后找到了解决方案：给目标DIV加上overflow: hidden的样式，我不是专门搞前端的，不去想为什么了 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 <div id="main" style="ov...

Posted by youthred on April 15, 2021

Centos7卸载OpenJdk,安装OracleJdk

查看JDK版本 1 java -version 查找openjdk安装包 1 rpm -qa | grep openjdk 卸载openjdk 1 yum -y remove java*openjdk* 获取oraclejdk oraclejdk11.0.9.rpm 提取码:0000 上传到服务器，若无rz/sz命令请先执行yum install -y lrzsz ...

Posted by youthred on April 15, 2021

Springboot统一异常处理

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 import org.springframework.web.bind.annotation.ControllerAdvice; import org.springframework.web.bind.annotation.ExceptionHandler...

Posted by youthred on April 15, 2021