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# 前置检查 ## 1.checkArgument ```java Preconditions.checkArgument(1 > 0 ,"error msg"); ``` 底层实现 ```java public static void checkArgument(boolean expressio 阅读全文
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# maven目录层级 ![image](https://img2023.cnblogs.com/blog/680792/202307/680792-20230710112345570-1765260001.png) # 1.所有的aop都拆分到一个新的maven模块中来 ## 1.1 maven模 阅读全文
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# 1.封装后台线程BaseDaemonThread ```java public abstract class BaseDaemonThread extends Thread { protected BaseDaemonThread(Runnable runnable) { super(runna 阅读全文