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Resource download: https://download.csdn.net/download/weixin_44893902/45601768 Exercise point design: fuzzy query, delete, add 1, Language and environment Implementation language: JAVA language.Environment requirements: MyEclipse/Eclipse + Tomcat + MySql.Use technology: Jsp+Servlet+JavaBean or spring MVC + Spring + mybatis. 2, Realiz ...

     1. What is a handler      2. How to get the handler (if you don't pay attention to the analysis process, you can skip and look at the summary directly      3. Simple summary of handle 1. What is a handler      Students who have learned about the spigmvc process must have heard of the handler. Baidu translates it as ...

@SentinelResource can be said to be a breakthrough in Sentinel learning. Understanding the application of this annotation basically clarifies most of Sentinel application scenarios. 1, @ SentinelResource resolution Sentinel provides @ SentinelResource annotation to define resources, and provides AspectJ extension to automatically define resou ...

introduction Flink provides a special Kafka connector to read or write data to Kafka topic. Flink Kafka Consumer integrates Flink's Checkpoint mechanism to provide exactly once processing semantics. For this reason, Flink does not completely rely on tracking the offset of Kafka consumption group, but tracks and checks the offset internally. W ...

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Development tool preparation Development tool: idea2017 up Dependency management: Maven 3 or above JDK: above 1.8 Creating a Spring project using Maven Select MavenCheck Create from archetypeSelect Maven archetype QuickStart Created successfully Creating a Spring project using Java Enterprise Default Version generally selects Java ...

SpringSecurity Safety should be considered at the beginningFunction permissions, access permissions and menu permissions all require certain rules to configure security rules Remember several classes: WebSecurityConfigurerAdapter: custom Security policyAuthenticationManagerBuilder: custom authentication policy@Enable WebSecurity: enable WebS ...

preface: In fact, I just want to understand the construction principle of the Filter linked list in the spring cloud gateway and the timing of injection into the Bean. If the dynamic injection Filter is a Bean, what timing injection will take effect by default. If it cannot take effect for what reason, which method classes can be forced to ...

  1.BeanDefinitionRegistryPostProcessor interface The BeanDefinitionRegistryPostProcessor interface inherits the beanfactory postprocessor interface, which we will talk about later. /** * Extension to the standard {@link BeanFactoryPostProcessor} SPI, allowing for * the registration of further bean definitions <i>before</i> r ...

1, IOC container IOC underlying principle Concept and principle of IOC 1. What is IOC? (1) Control inversion, and leave the object creation and calling process between objects to Spring for management (2) Purpose of using IOC: to reduce coupling 2.IOC underlying principle (1) xml parsing, factory schema, reflection IOC operation The ...