connection the localhost refused
踩坑:nacos启动报错提示需要设置JDK环境 ,报错:ERROR: Please set the JAVA_HOME variable in your environment, We need java(x64)! jdk8 or later is better! !!
换了个Windows11的新电脑,因为个人工作、学习需要,就重新下载了Nacos并解压使用,结果就踩了个坑,使用下面命令启动Nacos服务端时: startup.cmd -m standalone 直接在黑窗口提示:ERROR: Please set the JAVA_HOME variable i ......
CF1824D LuoTianyi and the Function【线段树】
给定长为 $n$ 的数组 $a$,如下定义 $g(i,j)$:当 $i \leq j$ 时,$g(i,j)$ 是满足 $\{ a_p : i \leq p \leq j \} \subseteq \{a_q : x \leq q \leq j\}$ 的最大整数 $x$。否则 $g(i,j) = 0$ ......
Minio预览图片报错:The Access Key Id you provided does not exist in our records.
一、错误信息 <Error> <Code>InvalidAccessKeyId</Code> <Message>The Access Key Id you provided does not exist in our records.</Message> <Key>34e20ef0681345c1b ......
POJ1737 Connected Graph ( n点无向连通图计数
题意说明:求 $n$ 个点的无向连通图个数 据说已经非常典了,但是我太菜了不会组合数学,最近补档时看到这道题,决定记录下来理理思路 ![image](https://img2023.cnblogs.com/blog/3146663/202305/3146663-20230520234501796-1 ......
Check the tbs' usage in PDB and CDB
check out the tbs's usage in PDB and CDB , run in CDB set line 200 pages 999 column name for a10 column tablespace_name for a15 column "MAXSIZE (GB)" ......
permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Get "http://%2Fvar%2Frun%2Fd dial unix /var/run/docker.sock: connect: permission denied
001、普通用户操作docker遇到如下问题 permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Get "http://%2Fvar%2Frun% ......
Oracle migrate the users into another DB instance
-- ###############OnSource################### create or replace procedure pr_user_ddl as cursor get_username is select username from dba_users where u ......
Uva--699 The Falling Leaves,(二叉树的递归遍历)
**记录** 10:46 2023-5-20 http://uva.onlinejudge.org/external/6/699.html reference:《算法竞赛入门经典第二版》例题6-10 二叉树的层次遍历,边读边写(这些题给我感觉是非常灵活),对每个节点需要的数据就是在sum数组的位置 ......
1094 The Largest Generation
题目: A family hierarchy is usually presented by a pedigree tree where all the nodes on the same level belong to the same generation. Your task is to fi ......
Redirect the Output of systemd Service to a File
By default stdout and stderr of a systemd unit are sent to syslog. 以filebeat service 为例: [Unit] Description=filebeat StartLimitIntervalSec=0 [Service] ......
Creating your own OpenID Connect server with ASOS: testing your authorization server with Postman
This post is the eighth part of a series of blog posts entitled Creating your own OpenID Connect server with ASOS: Introduction Choosing the right flo ......
forwardRef 与 connect一起使用出现的问题
今天在项目中发现 使用 forwardRef 转发用conenct包裹的组件,怎么都拿不到 提供给父组件的方法,百思不得其解。最后看到了这篇文章 React.forwardRef和connect的联合使用问题 才知道。 原来是这里惹的祸。 还有,像这种高阶组件。connect要在第一层,forwar ......
Putty连接虚拟机(在win11中安装的ubuntu20.04)提示: Network error: Connection refused
# 开启防火墙 sudo ufw enable# 开启22号端口 sudo ufw allow 22 # 重启防火墙 sudo ufw reload # 查看状态 sudo ufw status # 安装ssh sudo apt install openssh-server# 尝试能否远程登录ssh ......
generate a 3D chart in Python using the CSV data
Here's an example of how you could use Matplotlib to create a 3D scatter plot from your CSV data: import pandas as pd import matplotlib.pyplot as plt ......
Row size too large. The maximum row size for the used table type, not counting BLOBs, is 65535.
问题描述 新建表或者修改表varchar字段长度的时候,出现这个错误 Row size too large. The maximum row size for the used table type, not counting BLOBs, is 65535. This includes stora ......
How to use pip3 install the latest version package All In One
How to use pip3 install the latest version package All In One
如何使用pip3安装最新版本包
......
cURL error 60: Peer's certificate issuer has been marked as not trusted by the user
PHP中的curl提供了发送网络请求的一系列函数,我们在使用的时候很方便,但有时也会遇到一些问题。标题的错误我曾经遇到过一次,解决之后没有做相关记录,导致最近遇到该错误时,又花了很多时间去解决。 cURL error 60: Peer's certificate issuer has been ma ......
The First Collision for Full SHA-1阅读笔记
论文链接: https://doi.org/10.1007/978-3-319-63688-7_19. 论文给出了第一个SHA-1的实际碰撞. 攻击步骤 找到合适的扰动向量. 构造非线性部分差分路径. 确定每步的条件. 扰动向量选择 采用联合局部碰撞分析(JLCA)技术. 不考虑一条差分路径的概率, ......
良心分享,不需要CSDN的下载积分。centos 7安装vmware-tools时,遇the path "" is not valid path to the gcc binary和the path "" is not a valid path to the 3.10.0-327.e17.x86_64 kernel headers问题解决
看到CSDN有下载还得要积分,真是缺德啊。centos官网有的下载的只是比较难找。 在这里分享给大家,大家给个关注哦 1. 通过 uname -r 确认自己的版本 例如:提示: 3.10.0-327.el7.x86_64 2. 找到相应rpm包 kernel-devel-3.10.0-327.el7 ......
【Azure 应用服务】应用服务连接 Azure MySQL 一直失败,报错 Create connection error
问题描述 App Service上部署的Java应用,连接 Azure Database for MySQL 失败。错误信息:Create connection error, url: jdbc:mysql://....................... communications link ......
How to use the Raspberry Pi and Python to control a DHT11 wet and temperate module All In One
How to use the Raspberry Pi and Python to control a DHT11 wet and temperate module All In One
如何使用树莓派和 Python 来控制温湿度模块
......
问题记录之mysql:Job for mysqld.service failed because the control process exited with error code. See "systemctl status mysqld.service" and "journalctl -xe" for details.
今天服务器连接mysql发现一直超时(查出的原因是磁盘满了)清了磁盘以后,mysqld.service 还是无法启动 执行命令及报错如下:(注意,因为磁盘满的问题,我的mysql并不是正常途径关闭的) 控制进程以错误代码退出导致无法以正常的方式启动它了, 错误说明:Job for mysqld.se ......
MYSQL 通过管理端口处理ERROR 1040 (HY000): Too many connections 问题
[] 适用范围 MYSQL 8.0.14+ 问题概述 应用连接DB时,出现 “ERROR 1040 (HY000): Too many connections” 错误,此时在低版要么是手动停掉应用释放连接 ,要么是重启DB以释放连接。 问题原因 出现这个报错的原因有两种情况: 一种是单个用户的连接数 ......
Your password does not satisfy the current policy requirements解决办法
mysql5.7.x安装以后,想修改随机生成的密码为简单容易记忆的密码,如root,123456等,这时候通过修改密码的几种方式都不行,出现密码不符合当前安全策略要求。为了解决这种问题,可以修改几个值,他们是关于密码验证的设置。我们通过随机生成的密码,登录数据库,查看密码验证相关变量:mysql> ......
SoftRAID/FakeRAID hardware. In the first case run chkdsk /f on Windows
[root@storage1 ~]# mount /dev/sdj3 /mnt/data-dir/ntfs_mst_post_read_fixup_warn: magic: 0xffffffff size: 1024 usa_ofs: 65535 usa_count: 65535: Invalid ......
yarn install 报错 connect ETIMEDOUT 104.16.22.35:443".
报错信息:An unexpected error occurred: "https://registry.yarnpkg.com/dcmjs/-/dcmjs-0.29.3.tgz: connect ETIMEDOUT 104.16.25.35:443". 解决方法:更换镜像源 先把node-sass ......
Failed to open connection to "session" message bus: Using X11 for dbus-daemon autolaunch was disabled at compile time, set your DBUS_SESSION_BUS_ADDRESS instead
Failed to open connection to "session" message bus: Using X11 for dbus-daemon autolaunch was disabled at compile time, set your DBUS_SESSION_BUS_ADDRE ......
CF1824A LuoTianYi and the Show
题意 有 $n$ 个人、编号为 $1$ 至 $m$ 的 $m$ 个座位与三种坐座位的方式: 坐在最左边的人的左边,当 $1$ 号座位也不为空时就不坐了,当没有人坐在座位上时坐在 $m$ 号座位上; 坐在最右边的人的右边,当 $m$ 号座位也不为空时就不坐了,当没有人坐在座位上时坐在 $1$ 号座位上 ......
使用EventBus 3.0 报 Subscriber class com.example.test.MainActivity and its super classes have no public methods with the @Subscribe annotation
代码如下: public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanc ......