peng.zhou

1.configLocations的解析构造器代码如下：super(parent);setConfigLocations(configLocations);if (refresh) { refresh();}我们先看setConfigLocations代码this.configLocations = new String[locations.length];

模板代码如下： @Autowired private DataSourceTransactionManager transactionManager; public void insert(CardEntity card, String dataSourceCloud, String tableNo) { TransactionStatus status

1.标签解析对应的handlerhttp\://www.springframework.org/schema/aop=org.springframework.aop.config.AopNamespaceHandler对应的解析类如下registerBeanDefinitionParser("aspectj-autoproxy", new AspectJAutoProxyBeanD

激活@Required,@Autowired, @PostConstruct, @PreDestroy, @Resource, @PersistenceContext ，@PersistenceUnit注解registerBeanDefinitionParser("annotation-config", new AnnotationConfigBeanDefinitionParser())

1.作用扫描classpath下带有注解的类，注册成spring bean。Spring 默认提供的注解包括@Component，@Repository，@Service，@Controller，@RestController，@ControllerAdvice, @Configuration。它有一个annotation-config属性默认是ture，它的作用和 一样。激活@R

context:property-placeholder location="classpath*:application.properties"/>对应的handlerhttp\://www.springframework.org/schema/context=org.springframework.context.config.ContextNamespaceHandlerpubl

1.配置解析tx:annotation-driven transaction-manager="transactionManagerMember" order="2"/>我们需要找到这个标签解析的handler，在spring-tx jar包下META-INF目录下spring.handlers文件中找到如下：http\://www.springframework.org/

1.初始化入口 org.springframework.web.context.ContextLoaderListenerpublic class ContextLoaderListener extends ContextLoader implements ServletContextListener 通过实现ServletContextListener 在ServletCo

1、两个都是prototype的bean   两个bean都是prototype，只有在使用的时候才去创建bean。 AbstractBeanFactory类中doGetBean方法检测循环依赖。// Fail if we're already creating this bean instance:// We're assumably within a circular refer

线上Oracle数据库网络非常不稳定，不时发生连接闪断，发现一个线程一直堵塞，日志没有错误。dump出线程信息后如下：pool-4-thread-50" prio=10 tid=0x00007f92f5251000 nid=0x26e1 runnable [0x00007f929a1df000]   java.lang.Thread.State: RUNNABLEat java.n