nexthexonextbutterflyvolantisyearnyiliashokaindigoapollolandscapecactusmateryicarusfluidmaterial 微服务于微服务架构微服务强调服务的大小，他关注某一个点，一个模块只做一种事情微服务架构通常而言，他提倡将单一的程序划分为一组小的服务，每个服务运行在独立的进程中，采用轻量级的通信机制 doubbo是rpc，springcloud是restful     阅读全文

nexthexonextbutterflyvolantisyearnyiliashokaindigoapollolandscapecactusmateryicarusfluidmaterial 启动配置原理几个重要的事件回调机制 ApplicationContextInitializer SpringApplicationRunListener ApplicationRunner CommandLineRunner 启动流程1return new SpringApplication(primarySources).run(args); 创建SpringApplication对象 运行run方法 创建对象现在左边的参数是null 123456789101112public SpringApplication(Class<?>... primarySources) { this(null, primarySources);}public SpringApplication(ResourceLoader resourceLoader, Class<?>... primarySources) { this.resourceLoader = resourceLoader; Assert.notNull(primarySources, "PrimarySources must not be null"); this.primarySources = new LinkedHashSet<>(Arrays.asList(primarySources)); this.webApplicationType = WebApplicationType.deduceFromClasspath(); setInitializers((Collection) getSpringFactoriesInstances(ApplicationContextInitializer.class)); setListeners((Collection) getSpringFactoriesInstances(ApplicationListener.class)); this.mainApplicationClass = deduceMainApplicationClass();}     阅读全文

nexthexonextbutterflyvolantisyearnyiliashokaindigoapollolandscapecactusmateryicarusfluidmaterial 创建项目选择MySQL+JDBC+Web 链接数据库123456spring: datasource: username: root password: 123456 url: jdbc:mysql://localhost:3306/jdbc driver-class-name: com.mysql.jdbc.Driver     阅读全文

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nexthexonextbutterflyvolantisyearnyiliashokaindigoapollolandscapecactusmateryicarusfluidmaterial 整合 创建数据库 导入依赖 建立基本结构和配置框架 编写MyBatis.xml 编写Spring-dao.xml 编写Spring-service.xml 编写web.xml 编写Spring-mvc.xml 编写applicationContext.xml     阅读全文

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nexthexonextbutterflyvolantisyearnyiliashokaindigoapollolandscapecactusmateryicarusfluidmaterial MyBatis是一个对JDBC的封装，是一个数据持久化框架 优点减少代码量，降低维护成本，讲SQL写到XML中，降低耦合度，支持动态SQL语句，支持标签映射， 缺点SQL编写工作量大，SQL语句依赖数据库，导致移植性较差     阅读全文

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nexthexonextbutterflyvolantisyearnyiliashokaindigoapollolandscapecactusmateryicarusfluidmaterial 注解配置Controller这里的19行是spring中的注解扫描，21行是不去处理静态资源，23行是配置处理器的适配器 12345678910111213141516171819202122232425262728293031<?xml version="1.0" encoding="utf-8"?><beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"> <context:component-scan base-package="com.wsx.controller"/> <!-- 不处理静态资源--> <mvc:default-servlet-handler/> <!-- 配置处理器和适配器--> <mvc:annotation-driven/> <!-- 解析器--> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/jsp/"/> <property name="suffix" value=".jsp"/> </bean></beans>     阅读全文