- 博客(64)
- 收藏
- 关注
原创 Correct the classpath of your application so that it contains compatible versions of the classescom.
Correct the classpath of your application so that it contains compatible versions of the classescom.baomidou.mybatisplus.extension.plugins.inner.PaginationInnerInterceptor and net.sf,s.jsqlparser.schema.ColumnDisconnected from the target VM, address:'127.
2024-01-25 18:04:02
705
原创 Caused by: org.springframework.beans.BeanInstantiationException Create breakpoint : Failed toinstant
[javax.sql.DataSource]: Factory methoddataSource'threwexception:nestedexception is iava.lang.BootstrapMethodError: iava.lang
2024-01-23 15:16:18
1506
原创 mysql group_concat函数使用
5、以id分组,把name字段的值打印在一行,逗号分隔,以name排倒序。2、以id分组,把name字段的值打印在一行,逗号分隔(默认)4、以id分组,把去冗余的name字段的值打印在一行。
2024-01-16 11:37:16
613
1
原创 linux启动redis时报错
2.WARNING: The TCP backlog setting of 511 cannot be enforced because/proc/sys/net/core/somaxconn is set to the lower value of 128
2023-11-17 10:56:45
443
原创 Caused by: java.time.DateTimeException: Invalid date ‘SEPTEMBER 31‘ at java.time.LocalDate.create(L
Caused by: java.time.DateTimeException: Invalid date 'SEPTEMBER 31' at java.time.LocalDate.create(LocalDate.java:431) ~[na:1.8.0_331]
2023-11-01 16:57:44
461
原创 Vue3 runtime-core.esm-bundler.js:221 Uncaught TypeError: router.push is not a function at tz1 (q
vue3 bug runtime-core.esm-bundler.js:221 Uncaught TypeError: router.push is not a function at tz1 (query.vue:18:10)
2023-10-18 08:24:39
1538
原创 No serializer found for class java.util.Collections$3 and no properties discovered to create BeanSer
No serializer found for class java.util.Collections$3 and no properties discovered to create BeanSerializer (to avoid exception, disable
2023-10-16 17:43:04
627
原创 The bean ‘wms-server.FeignClientSpecification‘ could not be registered. A bean with that name has al
The bean 'wms-server.FeignClientSpecification' could not be registered. A bean with that name has already been defined and overriding is disabled.
2023-10-15 21:33:23
161
原创 Caused by: java.lang.IllegalArgumentException: error Type referred to is not an annotation type: com
Caused by: java.lang.IllegalArgumentException: error Type referred to is not an annotation type: com$wms$anno$AutoFile
2023-10-14 22:09:57
289
原创 docker安装和docker安装RabbitMQ
如果想要删除:yum -y remove docker-ce。查看状态:systemctl status docker。重启:systemctl restart docker。启动:systemctl start docker。停止:systemctl stop docker。http://自己的ip:15672/采⽤Docker安装RabbitMQ。执行命令,先查看是否有Docker。1.执行命令,实现Docker安装。3.运行rabbitmq。3.启动Docker。1.查看正在运行容器。
2023-10-13 13:21:16
141
原创 JVM八股文
jvm将虚拟机分为5大区域,程序计数器、虚拟机栈、本地方法栈、java堆、方法区;1.Java 内存模型就是在底层处理器内存模型的基础上,定义自己的多线程语义。它明确指定了一组排序规则,来保证线程间的可见性。JMM 规定,要想保证 B 操作能够看到 A 操作的结果(无论它们是否在同一个线程),那么 A 和 B 之间必须满足Happens-Before 关系怎么理解Happens-Before 关系,如果按字面意思,比如第二个规则(监听器的解锁动作 happens-before 后续对这个监听器的锁定。
2023-10-13 08:28:28
186
原创 BeanUtils.copyProperties(source,target);的用法
BeanUtils.copyProperties(source,target);用法
2023-10-12 21:00:59
96
原创 微服务核心案例-注册、登录、预约
请实现一个,每日只能预约10个,不能超出,每个用户每日只能预约1个。用户表:id name password ctime。预约记录表:id uid bdate ctime。就是实现服务的远程调用,提供对外暴露的接口。选择微服务架构,为了未来可能的高并发。Maven 多模块进行开发。6.查询自己的预约记录。5.查询剩余预约数量。
2023-10-11 21:29:26
66
原创 windos端口号被占用解决方案
netstat -aon|findstr “端口号”taskkill /F /PID 进程号。win+R 输入cmd 打开黑窗口。4.再次检查,发现没有了。
2023-10-11 19:29:38
123
原创 SpringCloud或SpringBoot项目启动后图标变灰的解决方案
SpringCloud或SpringBoot项目启动后图标变灰的解决方案。1.直接看图一步步操作即可。
2023-10-11 19:07:26
478
原创 idea连接mysql使用
?useSSL=false&serverTimezone=Asia/Shanghai&useUnicode=true&characterEncoding=UTF-8
2023-10-10 22:07:19
169
空空如也
空空如也
TA创建的收藏夹 TA关注的收藏夹
TA关注的人