老王海明威

spring boot是如何启动的？运行org.springframework.boot.loader.JarLauncher类，就是Main-ClassJarLauncher启动com.example.demo.DemoApplication，就是Start-Classxxx.jar\META-INF\MANIFEST.MF 文件内容如下：Manifest-Version: 1.0Created-By: Maven Jar Plugin 3.2.0Build-Jdk-Spec: 11

删除一个字符串中指定的多个字符的算法源码出处：org.springframework.util.StringUtils#deleteAny /** * Delete any character in a given {@code String}. * @param inString the original {@code String} * @param charsToDelete a set of characters to delete. * E.g. "az\n" will del

InitializingBean接口为bean提供了初始化方法的方式，它只包括afterPropertiesSet方法，凡是继承该接口的类，在初始化bean的时候都会执行该方法public interface InitializingBean { /** * Invoked by the containing {@code BeanFactory} after it has set all bean properties * and satisfied {@link BeanFactoryAw