HoleLin's Blog

参考文献 新手入门:目前为止最透彻的的Netty高性能原理和框架架构解析 Netty实战 Netty架构图 Netty源码结构 12345678910111213141516171819202122232425 Transport Services Protocol Support+----------------------------------------------+---------------------------------------------------------+| io.netty.transport | io.netty.codec || io.netty.transport.epoll | io.netty.codec.dns ...

参考文献 rclone Install rclone 安装 使用一键安装脚本 1sudo -v ; curl https://rclone.org/install.sh | sudo bash 使用二进制文件安装 1234567891011121314# 获取二进制压缩包,并解压curl -O https://downloads.rclone.org/rclone-current-linux-amd64.zipunzip rclone-current-linux-amd64.zipcd rclone-*-linux-amd64# 将rclone命令放入全局命令目录,并赋予权限sudo cp rclone /usr/bin/sudo chown root:root /usr/bin/rclonesudo chmod 755 /usr/bin/rclone# 安装manpagesudo mkdir -p /usr/local/share/man/man1sudo cp rclone.1 /usr/local/share/man/man1/sudo mandb 配置 rc ...

参考文献 @Import使用 12345678910111213// org.springframework.context.annotation.Import@Target(ElementType.TYPE)@Retention(RetentionPolicy.RUNTIME)@Documentedpublic @interface Import { /** * {@link Configuration @Configuration}, {@link ImportSelector}, * {@link ImportBeanDefinitionRegistrar}, or regular component classes to import. */ Class<?>[] value();} 允许通过它引入@Configuration标注的类,引入ImportSelector接口和ImportBeanDefinitionRegistrar接口的实现,也包括@Component注解的普通类 ...

参考文献 Spring注解@Autowired源码分析 @Autowired 12345678910111213// org.springframework.beans.factory.annotation.Autowired@Target({ElementType.CONSTRUCTOR, ElementType.METHOD, ElementType.PARAMETER, ElementType.FIELD, ElementType.ANNOTATION_TYPE})@Retention(RetentionPolicy.RUNTIME)@Documentedpublic @interface Autowired { /** * Declares whether the annotated dependency is required. * <p>Defaults to {@code true}. */ boolean required() default true;} 使用场景 @Autowired标 ...

参考文献 @Value 12345678910111213// org.springframework.beans.factory.annotation.Value@Target({ElementType.FIELD, ElementType.METHOD, ElementType.PARAMETER, ElementType.ANNOTATION_TYPE})@Retention(RetentionPolicy.RUNTIME)@Documentedpublic @interface Value { /** * The actual value expression such as <code>#{systemProperties.myProp}</code> * or property placeholder such as <code>${my.app.myProp}</code>. */ String value();} @Value数据来源 1 ...

参考文献 Spring事件之异步线程执行 @Async 123456789101112131415161718192021// org.springframework.scheduling.annotation.Async@Target({ElementType.TYPE, ElementType.METHOD})@Retention(RetentionPolicy.RUNTIME)@Documentedpublic @interface Async { /** * A qualifier value for the specified asynchronous operation(s). * <p>May be used to determine the target executor to be used when executing * the asynchronous operation(s), matching the qualifier value (or the bean * name) of a specific & ...

参考文献 @Scheduled 12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152@Target({ElementType.METHOD, ElementType.ANNOTATION_TYPE})@Retention(RetentionPolicy.RUNTIME)@Documented@Repeatable(Schedules.class)public @interface Scheduled { String CRON_DISABLED = ScheduledTaskRegistrar.CRON_DISABLED; // 该参数接收一个cron表达式,cron表达式是一个字符串,字符串以5或6个空格隔开,分开共6或7个域,每一个域代表一个含义. /** * A cron-like expression, extending the usual UN*X definition to include trigger ...

参考文献 @ComponentScan @ComponentScan用于批量注册Bean.这个注解会让Spring去扫描某些包及其子包中所有的类.然后将满足一定条件的类作为Bean注册到Spring容器中. 12345678910111213141516171819202122232425262728293031323334353637383940414243// org.springframework.context.annotation.ComponentScan@Retention(RetentionPolicy.RUNTIME)@Target(ElementType.TYPE)@Documented@Repeatable(ComponentScans.class)public @interface ComponentScan { // 指定需要扫描的包 @AliasFor("basePackages") String[] value() default {}; // 作用和value一样,value和basePackag ...

参考文献 Spring @Configuration 和 @Component 区别 @Configuration 12345678910111213// org.springframework.context.annotation.Configuration@Target(ElementType.TYPE)@Retention(RetentionPolicy.RUNTIME)@Documented@Componentpublic @interface Configuration { @AliasFor(annotation = Component.class) String value() default ""; boolean proxyBeanMethods() default true;} 使用@Configuration的约束 配置类必须以类的形式提供(不能是工厂方法返回的实例),允许通过生成子类在运行时增强(cglib 动态代理)。 配置类不能是final类(没法动态代理)。 配置注解通常为了通过@Bean注解生 ...

参考文献 TLS Support RabbitMQ使用TLS支持SSL加密处理 https://docs.oracle.com/cd/E19509-01/820-3503/ggfen/index.html Java Keytool Essentials: Working with Java Keystores https://github.com/securitysushi/rabbitmq-ssl-example 运维侧配置 使用TSL工具生成证书 1234567git clone https://github.com/rabbitmq/tls-gen tls-gencd tls-gen/basic# private key passwordmake PASSWORD=bunniesmake verifymake infols -l ./result 12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626 ...