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RSS订阅原创 Error: unable to perform an operation on node ‘rabbit@NoBug‘. Please see diagnostics information and
Error: unable to perform an operation on node 'rabbit@NoBug'. Please see diagnostics information and suggestions below.
2023-01-12 17:51:53
1464
3
原创 failed to parse field [name] of type [text] in document with id ‘1‘
failed to parse field [name] of type [text] in document with id '1'
2022-09-27 14:02:10
2850
原创 Spring boot maven项目报错unable to find valid certification path to requested target
Spring boot maven项目报错unable to find valid certification path to requested target
2022-09-23 17:27:42
327
原创 Starting MySQL.. ERROR! The server quit without updating PID file (/var/lib/mysql/instance-z43aidmj.
Starting MySQL.. ERROR! The server quit without updating PID file
2022-07-23 00:56:36
405
原创 create connection SQLException, errorCode 1045, state 28000
create connection SQLException, errorCode 1045, state 28000
2022-07-20 17:32:51
811
原创 写乐观锁拦截器的时候报错no @Intercepts was found
写乐观锁拦截器的时候报错no @Intercepts was found
2022-07-18 23:37:30
348
原创 本地仓库有该插件但是却报错：Plugin ‘org.apache.maven.plugins:maven-surefire-plugin:’ not found
本地仓库有该插件但是却报错：Plugin ‘org.apache.maven.plugins:maven-surefire-plugin:’ not found
2022-07-18 17:51:34
4387
原创 No @Intercepts annotation was found in interceptor com.example.config.MPConfig$$EnhancerBySpringCGLI
No @Intercepts annotation was found in interceptor com.example.config.MPConfig$$EnhancerBySpringCGLI
2022-07-17 23:09:06
1551
原创 Creating Server TCP listening socket *:6379: bind: Address already in use
Creating Server TCP listening socket *:6379: bind: Address already in use
2022-07-17 21:55:31
1118
原创 Please refer to dump files (if any exist) [date].dump, [date]-jvmRun[N].dump and [date].dumpstream.
There are Test Failure!
2022-07-16 23:28:11
263
原创 Plugin ‘org.springframework.boot:spring-boot-maven-plugin:‘ not found
Plugin ‘org.springframework.boot:spring-boot-maven-plugin:‘ not found
2022-07-16 22:59:01
295
原创 1005 - Can‘t create table ‘project.progress_tb‘ (errno: 121)
1005 - Can't create table 'project.progress_tb' (errno: 121)
2022-07-15 22:16:53
126
原创 Can‘t create table ‘project.design_tb‘ (errno: 150)
Can't create table 'project.design_tb' (errno: 150)
2022-07-15 22:06:31
83
原创 You have an error in your SQL syntax； check the manual that corresponds to your MySQL server version
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ')' at line 4
2022-07-15 21:50:25
204
原创 You have an error in your SQL syntax； check the manual that corresponds to your MySQL server version
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'REFERENCES `unit_tb`(`id`)
2022-07-15 16:57:07
175
原创 初学react时http://localhost:3000无法访问
在win+R进入cmd界面，定位到自己构建的项目目录下，输入npm start就行了。为什么我也不知道。
2021-09-24 16:24:27
2038
原创 c++高精度算法学习笔记！
高精度算法的用处？所谓高精度算法就是用来计算很大的数字的运算的算法，在c++中，当一个数字过于庞大，无法用已有的数据类型来表示，就会出现数据溢出的现象，这个时候我们就可以用高精度算法来解决这个问题啦！高精度算法的核心思想？用数组将数据存储起来，再将我们小学学习的加减乘除的步骤用代码表示出来，并将结果存入另一个数组，那计算就算完成啦。高精加法#include<iostream>#include<string.h>using namespace std;string st
2021-04-16 15:16:15
166
转载 sort the array
洛谷题目链接Being a programmer, you like arrays a lot. For your birthday, your friends have given you an array aa consisting of nn distinct integers.Unfortunately, the size of aa is too small. You want a bigger array! Your friends agree to give you a bigger a
2021-02-28 00:20:50
155
原创 Cannot resolve method ‘writeJson(java.lang.String, javax.servlet.http.HttpServletResponse)‘
虽然我查了很久试过了很多好方法还是没有解决我的问题，但是为了表示对我这段查询时间的纪念，还是记录一下我的查询结果（QAQ）。链接在这里：这一篇介绍的是加jspapi.jar和servletapi.jar的这一篇是介绍添加插件Lombok的这一篇是说清空缓存和添加tomcat的祝大家好运！！！...
2021-02-27 10:41:54
958
原创 Two Round Dances
One day, n people (n is an even number) met on a plaza and made two round dances, each round dance consists of exactly n/2 people. Your task is to find the number of ways n people can make two round dances if each round dance consists of exactly n/2 peopl.
2021-02-26 21:22:56
251
原创 如何检查自己的mysql版本号以及为何在命令行键入mysql确提示找不到外部命令？
很有可能是没有配置环境变量！！！安装成功后如何检查自己的mysql版本号？在没有配置环境变量的情况下：双击进入mysql命令行，输入密码就可以了（像这样）：配置环境变量后：win+R进入命令行，再像这样输入命令和密码就ok了：...
2021-02-24 10:29:58
313
原创 SyntaxError: Non-UTF-8 code starting with ‘\xe5‘ in file D:/MyPython/bigData/黑龙江患者轨迹.py on line 47,
解决办法在这里总结一下：就是在源文件的第一行或者第二行加上#coding=utf-8或者## -*- coding: utf-8 -*-这里的编码要看你的个人需要，我是因为源文件中有中文，所以需要用到utf-8
2021-02-20 10:05:04
458
原创 python爬虫之反爬与反反爬技术
反爬技术1、headers请求头协议可以在每个网页的这里找到：这里的Request Headers就可以找到我们需要加上的请求头信息，使用requests模块一般情况下加上’User-Agent’就行了。下面对请求头信息里的几个部分做一个简单介绍User-Agent一种身份标识，服务器可以通过它了解到发起请求的是否是浏览器，为了绕过反爬我们通常将程序中的此参数改成对应浏览器的。比如我的google浏览器的：User-Agent: Mozilla/5.0 (Windows NT 10.0; Win
2021-02-19 09:16:09
667
原创 python爬虫使用bs4进行页面解析发现页面源码信息不完整
经过咨询发现是该网站具有反爬机制，于是加了headers的属性就行啦。一开始只用了User-Agent，后来加上cookie就行了。两个数据都是在对应源码页面复制的位置在这里：
2021-02-18 23:59:04
1072
原创 No connection adapters were found for
首先检查自己的拼写格式是否有问题，如果没问题的话就需要包含协议头’http://192.168.1.61:8080/api/call’
2021-02-18 09:03:33
8984
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