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RSS订阅转载 IPv6 地址相关
(3) 2001:0600::/23到2001:0800::/23分配给欧洲和中东(RIPE NCO这些注册机构再从IANA得到的地址空间分配/32前缀给IPv6 ISP, IPv6ISP再从32前缀中分配/48前缀给每个客户。这样每个客户最大可以有65535个子网。IPv6全球单播地址为`2000::/3`，即`2000:: - 3fff:ffff`。(1) 2001:0200::/23到2001:0C00::/23分配给亚太地区(APNIC)(2) 2001:0400::/23分配给美国(ARIN)
2023-03-21 16:42:27
261
原创 jdk visualvm oql语句
select x from com.mysql.jdbc.JDBC42PreparedStatement xselect { closed: cl.isClosed } from instanceof com.mysql.jdbc.JDBC42PreparedStatement cl where cl.isClosed == false select count(heap.objects('com.mysql.jdbc.JDBC42PreparedStatement'),...
2022-04-16 18:16:30
1078
原创 java char byte getByte 问题
1. char 对应的二进制，使用的是UTF-16-BE编码，java内部默认使用UTF-16-BE编码；Integer.toBinaryString("😀".charAt(0))2. getByte方法使用的是外部编码，例如UTF-8、GBK等，默认使用Charset.defaultCharset().name()，"😀".getByte()[0]或者直接指定编码， "😀".getByte("charset")[0]；getByte方法，会调用各种编码的实现(sun.nio.cs.*)来转码
2022-03-04 10:15:33
513
原创 vmware 10 安装 PhoenixOS(凤凰系统)
ref:win10下虚拟机VMware安装PhoenixOS(凤凰OS)_小柯基_littlecogi的博客-优快云博客_虚拟机安装凤凰系统引导：ee空格+nomodesetb
2022-02-09 20:53:13
2204
原创 maven 定义 plugin
pom.xml<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</mod
2022-01-29 09:40:04
2165
原创 flink docker compose
docker-compse.yml# docker-compose -p flink-1 up -dversion: "3.8"services: jobmanager: image: ${FLINK_DOCKER_IMAGE_NAME:-my-flink} container_name: flink-jobmanager1 privileged: true expose: - "6123" ports: - "8081:8081"...
2022-01-25 15:51:26
2364
原创 window linux echo 打印 不同颜色字体
ref:Windows cmd(DOS)命令窗口中echo命令ANSI转义显示彩色字或背景_weixin_34161032的博客-优快云博客2019独角兽企业重金招聘Python工程师标准>>> ...https://blog.youkuaiyun.com/weixin_34161032/article/details/91879480
2022-01-19 09:32:48
805
原创 python 3.9 window paddle hub ocr
ref:PaddleHub-源于产业实践的开源深度学习平台https://www.paddlepaddle.org.cn/hub# coding=utf-8from wsgiref.simple_server import make_serverfrom flask import Flaskfrom flask import requestimport paddlehub as hubimport cv2import jsonocr = hub.Module(name="chinese_
2022-01-17 15:18:24
627
原创 openldap 安装
参考：CentOS7下OpenLDAP部署 - 阿拉懒神灯 - 博客园OpenLDAP作为开源的LDAP服务，可用于搭建统一认证平台，在很多企业内部应用比较广泛，本文将介绍在CentOS7下OpenLDAP的部署。 环境： CentOS 7.4 OpenLDAP 2.4https://www.cnblogs.com/alalazy/p/14119468.html...
2021-11-10 22:47:59
421
原创 滑块验证码 js事件处理
document.onclick = function(e){console.log(e)}a=document.getElementById('slide')e1=document.createEvent('MouseEvents')e1.initMouseEvent( 'mousedown', true, true, window, "mousedown", 500, 299, 500, 196, false, false, true, false, 0, null );a.dispa
2021-10-19 17:56:40
227
原创 linux 远程调试java
tomcat的catalina.sh中添加JAVA_OPTS="$JAVA_OPTS -Xdebug -Xrunjdwp:transport=dt_socket,address=8999,server=y"eclipse中debug remotedebug
2021-05-27 13:36:07
198
原创 inno example
ref:https://jrsoftware.org/ishelp/; -- AllPagesExample.iss --; Same as Example1.iss, but shows all the wizard pages Setup may potentially display; SEE THE DOCUMENTATION FOR DETAILS ON CREATING .ISS SCRIPT FILES![Setup]AppName=My ProgramAppVersion.
2021-04-12 00:09:52
203
原创 获取本地id/hostname
public static String localhost = "localhost"; public static String localhostIp = "127.0.0.1"; public static String localhostIpV6 = "0:0:0:0:0:0:0:1"; public static List<String> ipList = new ArrayList<String>(); static {...
2021-03-27 18:23:41
237
原创 ./redis-cli -a 111 KEYS “key*“ | xargs ./redis-cli -a 111 DEL
./redis-cli -a 111 KEYS "key*" | xargs ./redis-cli -a 111 DEL
2021-03-03 17:52:56
543
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原创 react exceljs
"exceljs": "^4.2.0",npm install exceljsimport {Workbook} from 'exceljs';const workbook = new Workbook;const sheet = workbook.addWorksheet('Sheet1', {properties:{defaultRowHeight:25}}); sheet.pageSetup.horizontalCentered = true; shee...
2021-02-06 16:56:53
638
原创 react sheetjs
sheetjs"xlsx": "^0.16.9"npm install xlsximport { utils, writeFile, read } from 'xlsx';read:let file = document.getElementById("sheet").files[0]; if(file){ var reader = new FileReader(); reader.onload = e => ...
2021-02-06 16:50:32
661
原创 Postgresql 连接数相关
select min_val, max_val from pg_settings where name='max_connections';show max_connections;select count(1) from pg_stat_activity;select * from pg_stat_activity;select client_addr,datname,pid,application_name,state from pg_stat_activity order by cli
2020-11-22 13:48:27
169
原创 oracle 91c 相关
忽略---重建字典----sql> @?/rdbms/admin/catalog.sqlsql> @?/rdbms/admin/catproc.sql执行数据字典的编写应该检测是否有失效的对象，如有失效应该执行以下:SQL> @?/rdbms/admin/catmetx.sqlSQL> @?/rdbms/admin/utlrp.sql-----------删除cdb dbca -silent -deleteDatabase -sourceDB cdb2...
2020-10-16 13:09:58
841
原创 docker worpress
参考：https://www.cnblogs.com/sijidou/p/11099787.htmlhttps://hub.docker.com/_/wordpress?tab=descriptiondownload themeshttps://wordpress.org/themes/example:hestiadocker pull wordpressdocker run --name some-wordpress(hestia) -p 8080:80 -d wordpress
2020-09-19 11:50:17
120
原创 maven 添加本地包
mvn install:install-file -DgroupId=pinyin4j.sourceforge.net -DartifactId=pinyin4j -Dversion=2.5.0 -Dpackaging=jar -Dfile=C:\Users\zhichao\Desktop\pinyin4j-2.5.0.jar
2020-08-14 18:56:30
158
原创 Cordova 创建 android app
https://cordova.apache.org/docs/en/latest/cordova --version8.1.2 (cordova-lib@8.1.1)npm install -g cordovacordova create Wurd com.Wurd Wurdcd Wurdcordova platform add androidcordova platform ls只有android8.1？？www/index....
2020-07-30 00:33:42
174
原创 LibreOffice Online linux centOS7 install
使用collaboraoffice online centOS7https://www.collaboraoffice.com/code/https://www.collaboraoffice.com/code/linux-packages/wget https://www.collaboraoffice.com/repos/CollaboraOnline/CODE-centos7/repodata/repomd.xml.key && sudo rpm --import .
2020-07-21 22:02:53
1182
原创 svn 相关
ps -ef | grep svnkill -9 idsvnserve -d -r /opt/svndata/reposhow to show log: set anon-access=none in svnserve.conf
2020-07-21 13:05:19
188
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原创 ionic android
https://ionicframework.com/docs/developing/android#live-reloadionic6安装android studio安装android SDK安装android镜像ionic start myApp tabs --capacitor --type=reactweb:ionic serveionic buildandroid:添加环境变量：ANDROID_SDK_ROOT以及%ANDROID_SDK_ROOT...
2020-07-19 02:15:16
288
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