was before is
52.同源策略（Same-Origin Policy）限制了跨域请求No 'Access-Control-Allow-Origin' header is present on the requested resource.
又遇到如下报错了，该如何处理， Access to XMLHttpRequest at 'http://localhost:3000/users' from origin 'http://localhost:5173' has been blocked by CORS policy: No 'Acc ......
rabbitMQ windows环境重装后报错RabbitMQ service is already present - only updating service parameters
错误如下：C:\Users\Administrator>rabbitmq-service installRabbitMQ service is already present - only updating service parametersC:\Program Files\erl\erts\bi ......
python -- 解决连接sqlserver出现的“ pymssql._pymssql.OperationalError: (20009, b'DB-Lib error message 20009, severity 9:\nUnable to connect: Adaptive Server is unavailable or does not exist”问题
因为工作关系，近期需要用python连接sqlserver处理一些数据问题。 由于笔记本上的软件是新安装的，所以有些配置避免不了重新设置，期间遇到一些小问题，记录一下。 下面正式开始 写一段代码，测试sqlserver数据库连接 import pymssql # 写法1# conn = pymssq ......
动态路由 出现 for supported dynamic import formats. If this is intended to be left as-is, you can use the /* @vite-ignore */ comment inside the import() call to suppress this warning.
for supported dynamic import formats. If this is intended to be left as-is, you can use the /* @vite-ignore */ comment inside the import() call to sup ......
kubernetes1.20版本 nfs-provisioner报错问题:"selfLink was empty"
Kubernetes升级为1.20版本后，原有的后端nfs存储storageclass无法自动创建pv。 查看PVC状态一直为pending状态，查看nfs-provisioner日志 kubectl logs nfs-client-provisioner-5f696dc8bb-qhmsn E011 ......
What Is Dolt?
Dolt is a SQL database you can fork, clone, branch, merge, push and pull just like a Git repository. Connect to Dolt just like any MySQL database to r ......
vue3中 TypeError: track(...) is not a function
我这边遇到的是在使用到element-plus的一个<el-input>标签时就开始出现（TypeError: track(...) is not a function），我怀疑这是element-plus与vue的版本问题，查看element-plus github的Releases 发现支持的版 ......
Compute Is Easy, Memory Is Harder And Harder
Compute Is Easy, Memory Is Harder And Harder https://www.nextplatform.com/2022/12/13/compute-is-easy-memory-is-harder-and-harder/ - The Next Platform ......
Vue computed出现Error in render: "TypeError: XXX is not a function"问题
原来： computed:{ currentTimeA: function() { return Date.now(); } } <div>{{currentTimeA()}}</div> 在运行的时候出现vue.js:634 [Vue warn]: Error in render: "TypeEr ......
webpack报错处理:The extension in the request is mandatory for it to be fully specified.
完整的报错提示如下: BREAKING CHANGE: The request './module2' failed to resolve only because it was resolved as fully specified(probably because the origin is s ......
failed to run Kubelet: validate service connection: CRI v1 runtime API is not implemented for endpoint
kubelet 1.27.0 ubuntu 20.04.6 kubeadm init ..... 异常 zxnl@zxnl-VirtuaBox:~# kubeadm init \ > --image-repository registry.aliyuncs.com/google_containers ......
GE工业交换模块IS420UCSCH1B
W;① ⑧ 0 ③ 0 1 7 7 7 ⑤ 9 GE工业交换模块IS420UCSCH1B，IS220PSVOH1A，IS200VTURH1BAA，IS420ESWBH3A，IS200TSVOH1B，GE工业交换模块IS420UCSCH1B，IS220PSVOH1A，IS200VTURH1BAA，控制 ......
What is doing __str__ function in Django?
def str(self): is a python method which is called when we use print/str to convert object into a string. It is predefined , however can be customised. ......
The MySQL server is running with the --skip-grant-tables option so it cannot execute this statement
The MySQL server is running with the --skip-grant-tables option so it cannot execute this statement 默认情况下，启动MySQL数据库实例期间，会读取所有的权限表条目到内存中，后续被缓存到内存中的权限条 ......
error: RPC failed; curl 55 OpenSSL SSL_write: Connection was aborted, errno 10053
git 初始化上传本地代码到远程出现异常 造成的可能原因： 1.网络原因 2.无效的代理 3.一次性推送的代码量过大 解决方法： 1.网络原因可以等一段时间网络良好的情况上传 2.无效代理的情况如下设置 git config http.sslVerify "false" 3.一次性推送代码量过大的情 ......
OEM报错"Compliance score 51% is below critical threshold"
OEM报错"Compliance score 51% is below critical threshold" 具体邮件报警如下： 点击链接，打开oem网页端，点击“查看相容性标准结果”： 选中其中一个安全建议，可以看到下边一般信息中建议打上安全补丁31720783，该补丁是linux版本的Orac ......
GE工业交换机IS420UCSCH2A-C-V0.1-A
W;① ⑧ 0 ③ 0 1 7 ⑦ 7 ⑤ 9GE工业交换机IS420UCSCH2A-C-V0.1-A，IS420UCSBH1A，IS420ESWBH3A，IS420ESWBH2A，IS215UCVHM06A IS415UCVHH1A B VET2-A21010 350-9300007672-12F ......
K8S异常之Unable to connect to the server: x509: certificate has expired or is not yet valid【转】
一、问题：k8s证书过期 [root@nb001 ~]# kubectl get node Unable to connect to the server: x509: certificate has expired or is not yet valid: current time 2022-12 ......
git指令连接库失败：OpenSSL SSL_read: Connection was reset, errno 10054
# 一、问题描述 无论是git clone还是git push之类的需要连接库的指令都会出现 ``` `fatal: unable to access 'http://github.com/我的库/': OpenSSL SSL_read: Connection was reset, errno 10 ......
Expected MultipartHttpServletRequest: is a MultipartResolver configured方案。
~~~java //1.报错：Expected MultipartHttpServletRequest: is a MultipartResolver configured ？ //2.解决 commons-fileupload commons-fileupload 1.3.1 // spring中 ......
【Django】关于错误django.db.utils.NotSupportedError: MySQL 5.7 or later is required (found 5.5.62).
本来想用Django创建表，但是输入 python manage.py makemigrations 然后就出错了，说是MYSQL兼容问题 解决方法 下载低版本的Django并且更新数据库可以解决（我在pycharm又下载了2.2.28，数据库从5.5更新到8.0）版本不能超过（Djang 4.1. ......
IDEA配置jdk（或者IDEA代码报错The SDK is not specified for module）
参考：https://blog.csdn.net/mask_boys/article/details/117385087 今天敲代码时，出现一个错误，那就是The SDK is not specified for module，意思是没有为模块添加SDK，所以会出现如下错误 如何解决这个问题呢： 首 ......
Query execution was interrupted, maximum statement execution time exceeded
数据库版本：MySQL 5.7.16 报错信息： ERROR 3024 (HY000): Query execution was interrupted, maximum statement execution time exceeded 检查bug库，发现同样问题： https://bugs.my ......
java正确开发系列：mybatis为何提示@MapKey is required
在mapper接口的方法定义为List<Map<String,Object>>类型时，会出现@MapKey is required的提示，意思是要在该方法的签名前加上@MapKey注解，指定Map的key 参考资料： https://blog.csdn.net/m0_59846266/article ......
GE控制器IS215UCVGM06A IS215UCVGH1A VMIVME-7666-111000
W:① ⑧ 0 ③ 0 ① 7 7 ⑦ 5 ⑨GE控制器IS215UCVGM06A IS215UCVGH1A VMIVME-7666-111000，VMICPCI-7806-211000 350-657806-211000L，VMIVME-7452，VMIVME-7807，VMIVME-7807RC ......
js 连接数据库 提示：ActiveXObject is not defined
## ActiveXObject is not defined 最近比较闲，上班瞎捣鼓一下，没想到报错了，提示ActiveXObject is not defined  is recursively defined as a binary tree which has the following properties: The left subtree of a node contains only no ......
使用VUE的component is 组件实现切换标签
VUE实现切换标签： <!DOCTYPE html> <html> <head> <title>Dynamic Components Example</title> <script src="https://unpkg.com/vue@2"></script> <style> .tab-button ......
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 ......
已解决If this call came from a _pb2.py file, your generated code is out of date and must be regenerated
已解决TypeError: Descriptors cannot not be created directly.If this call came from a _pb2.py file, your generated code is out of date and must be regener ......