1. ReentrantLock类
ReentrantLock可以实现线程之间同步互斥,类似于synchronized同样的效果。
public class ThreadReentrantLock {public static void main(String[] args) {ThreadA threadA new ThreadA();for (int i 0; i < 3; i) {Thread th new Thread…
开发反馈环境中数据库挂了,程序无法连接:进系统查看数据库没启动,关了;先重启 [rootjbftest-01 ~]# service mysql restart MySQL server PID file could not be found! [FAILED] Starting MySQL..The server qu…
[vite] error while updating dependencies: Error: Build failed with 38 errors: node_modules/vue/node_modules/vue/compiler-sfc/dist/compiler-sfc.cjs.js:2576:72: ERROR: Could not resolve "velocityjs" 根据报错提示可知是由vue/compiler-sfc这个东西所引发…
Windows下卸载RabbitMQ之后,然后重新注册RabbitMQ服务的时候,报错以下信息: D:\software\rabbitmq-server-4.0.2\rabbitmq_server-4.0.2\sbin>D:\software\rabbitmq-server-4.0.2\rabbitmq_server-4.0.2\sbin\rabbitmq-service.bat install RabbitMQ service is already …