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RSS订阅原创 virtualBox镜像复制
有一个镜像后，图方便，想直接使用这个vdi文件，但vdi有个uuid值，同一个虚拟机中不能同时存在两个同样的uuid的介质的，普通的复制文件所得到的uuid是一样的 ，所以需要用到自带的方法复制vdi文件，才能产生不一样的uuid文件。
2024-03-20 23:12:31
204
原创 VBoxManage.exe: error: Failed to lock source media ‘G:\virtualbox\Centos7_169\Centos7_169.vdi‘
virtualbox目前正启动着，关闭virtualbox，再执行就好了。
2024-03-20 23:06:09
218
原创 JAR will be empty - no content was marked for inclusion!
有没有看出什么问题了是不是少量了个java目录。
2024-01-22 16:15:36
366
原创 mysql存储过程有commit和没有commit区别
如果存储过程中没有执行commit，那么spring容器一旦发生了事务回滚，存储过程执行的操作也会回滚。如果存储过程执行了commit，那么数据库自身的事务此时已提交，这时即使在spring容器中托管了事务，并且由于其他原因导致service代码中产生异常而自动回滚，但此存储过程是不会回滚，因为数据自身的事务已在存储过程执行完毕前提交了， 也就是说此时spring回滚对存储过程的操作是无效的了。
2023-06-26 19:30:03
799
原创 ERROR 1418 (HY000): This function has none of DETERMINISTIC, NO SQL, or READS SQL DATA
创建function的时候，报这个错误。
2023-06-26 17:46:41
185
原创 java Internal error in the mapping processor java.lang.NullPointerException解决方法
java: Internal error in the mapping processor: java.lang.NullPointerException at org.mapstruct.ap.internal.processor.DefaultVersionInformation.createManifestUrl(DefaultVersionInformation.java:180) at org.mapstruct.ap.internal.processor.DefaultVersionIn
2023-05-18 10:07:28
2614
原创 函数指针-kernel例子
int ep_call_nested(struct nested_calls *ncalls, int max_nests, int (*nproc)(int *, int *, int))
2022-10-12 16:29:57
125
原创 #define EP_UNACTIVE_PTR ((void *) -1L)
#define EP_UNACTIVE_PTR ((void *) -1L)
2022-10-12 15:34:36
106
原创 Feign的serviceName替换真正的服务器
LoadBalancerContextpublic URI reconstructURIWithServer(Server server, URI original) { String host = server.getHost(); int port = server.getPort(); String scheme = server.getScheme(); if (host.equals(original.getHost()) &a
2022-05-25 23:04:33
486
原创 c函数指针
#include <stdio.h>void echo(void) { printf("===========echo===================\n");}void echo1(void) { printf("===========echo1===================\n");}long sum(int a,long b){ return a+b;}int main(){ // 定义函数指针 void (.
2022-05-19 23:44:02
122
原创 char*
例子 char *str = "12345678"; for(char i=0;i<8;i++) { printf("str[%d] = %c(%d) \n", i,*str,*str); str++; }输出str[0] = 1(49)str[1] = 2(50)str[2] = 3(51)str[3] = 4(52)str[4] = 5(53)str[5] = 6(54)str[6] = 7(55)str[7] = 8(56)
2022-05-05 23:07:33
256
原创 powerdesigner工具将pdm文件的comment同步至name
使用Powerdesigner工具将pdm文件的comment同步至name。点击Tools->Execute Commands->Edit/Run ScriptsOption Explicit ValidationMode = True InteractiveMode = im_Batch Dim mdl Set mdl = ActiveModel If (mdl Is Nothing) Then
2022-05-05 17:00:34
724
原创 powerdesigner设置 name to comment
Powerdesigner 把name设置成comment；PowerDesigner->Tools->Execute Commands->Edit/Run ScriptsOption Explicit ValidationMode = True InteractiveMode = im_Batch Dim mdl Set mdl = ActiveModel If (mdl Is Nothing) Then
2022-05-05 16:55:39
475
原创 PowerDesigner 中为日期字段设默认值为 CURRENT_TIMESTAMP
打开选项选中创建时间，点击右键点击Properties…选中Standard Checks查看脚本参考文档参考文档
2022-05-05 11:02:37
977
原创 Configure a Pod to Use a Projected Volume for Storage
projected.yamlapiVersion: v1kind: Podmetadata: name: test-projected-volumespec: containers: - name: test-projected-volume image: busybox:1.28 args: - sleep - "86400" volumeMounts: - name: all-in-one mountPath: "/proj
2022-04-22 22:17:18
220
原创 部署无状态应用程序及升级
deployment-1-14-2.yamlversion: 1.14.2apiVersion: apps/v1kind: Deploymentmetadata: name: nginx-deploymentspec: selector: matchLabels: app: nginx replicas: 2 # tells deployment to run 2 pods matching the template template: metadata
2022-04-22 21:46:29
2553
原创 serviceaccounts is forbidden: User “system:serviceaccount:kubernetes-dashboard:kubernetes-dashboard“
错误信息serviceaccounts is forbidden: User “system:serviceaccount:kubernetes-dashboard:kubernetes-dashboard” cannot list resource “serviceaccounts” in API group “” in the namespace “default”费了老大的功夫才明白是serviceaccount的问题,k8sdashboard出厂的serviceaccount权限太低，需要配置
2022-04-22 20:45:32
3436
原创 docker安装kibana6.5.0
下载镜像docker pull kibana:6.5.0安装docker run -d --name kibana -e ELASTICSEARCH_URL=http://172.16.5.98:9200 -p 5601:5601 kibana:6.5.0验证http://$ip:5601
2022-04-21 00:14:29
2947
原创 docker安装elasticsearch:6.5.0
下载镜像docker pull elasticsearch:6.5.0查看镜像docker images启动镜像docker run --name elasticsearch -d -e ES_JAVA_OPTS="-Xms512m -Xmx512m" -p 9200:9200 -p 9300:9300 elasticsearch:6.5.0查看启动情况docker ps -a启动失败查看日志docker logs -f 3c7fmax virtual memory ar
2022-04-20 23:22:59
2257
原创 gin的restful风格例子
新增// addr.POST("/employee", func(c *gin.Context) { //var username = c.PostForm("username") //var name = c.PostForm("name") var username = c.Query("username") var name = c.Query("name") var age,err = strconv.Atoi(c.Query("age")) if err!=nil { age
2022-04-10 00:16:12
314
原创 gin接收参数例子
r变量r := gin.Default()Query类似springmvc中的@RequestParam// addr.POST("/employee", func(c *gin.Context) { //var username = c.PostForm("username") //var name = c.PostForm("name") var username = c.Query("username") var name = c.Query("name") var age,e
2022-04-10 00:06:39
822
1
原创 gin安装
环境要求Go 1.13 及以上版本安装要安装 Gin 软件包，需要先安装 Go 并设置 Go 工作区下载并安装 gingo get -u github.com/gin-gonic/gin将 gin 引入到代码中import "github.com/gin-gonic/gin"开始新建server.goserver.go内容package mainimport "github.com/gin-gonic/gin"func main() { r := gin.Default(
2022-04-06 21:56:14
1161
原创 golang问题集锦
no required module provides packageno required module provides packagethe selected directory is not a valid home for go sdkthe selected directory is not a valid home for go sdk
2022-04-05 22:03:53
299
原创 no required module provides package
no required module provides packageno required module provides package github.com/satori/go.uuid: go.mod file not found in current directory or any parent directory; see ‘go help modules’原因安装过go高版本解决方式go env -w GO111MODULE=auto或者go env -w GO111MO
2022-04-05 22:01:42
8010
原创 the selected directory is not a valid home for go sdk
原因从go 1.15升级到go 1.18后，goland2020.3切换sdk，报如下错解决版本查看go版本go versiongo version go1.18 windows/amd64编辑zversion.go文件{GOROOT}/src/runtime/internal/sys/zversion.go添加下面语句const TheVersion = `go1.18`重启goland参考文档参考文档...
2022-04-05 20:13:47
629
2
canal.1.1.5包
2022-05-08
seata-server-1.2.0.tar.gz
2020-06-29
navicat_premium12
2019-02-25
how to learn bash third edition
2009-03-14
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