Programmer Help

Why cache Using cache is a "cost-effective" performance optimization method, especially for programs with a large number of repeated queries. Generally speaking, for WEB back-end applications, there are two places that take a lot of time: one is to query the database, and the other is to call the API of other services (because ...

1, The worker management system contains functions 1. Develop a worker management system using SSM framework, including the following functional requirements: Realize the addition, deletion, modification and paging list of workersThe ID card of the worker shall be unique, and the uniqueness shall be verified before savingThe ID card of the wo ...

Accumulate a little every day, and you will succeed another day catalogue background Technical scheme Technical scheme selection Implementation steps Query interceptor Operation interceptor public entity Configuring Interceptors Query interceptor does not take effect Problem solving background        ...

Last time I wrote about JPA, let's talk about Spring Data JPA Spring Data JPA is a set of JPA application framework encapsulated by spring based on ORM framework and JPA specification. Developers can use very simple code to access and operate the database. In daily use, Spring Data JPA development frees us from the operation of Dao layer, and ...

1. Netflix Eureka source code project structure description Brief description of core modules: (1) Eureka client: This refers to the Eureka client. A service registered on Eureka is a eureka client. Whether you want to register or find other services, whether it is a service provider or a service consumer, it is a eureka client. (2) eure ...

Absrtact: This article takes you to understand JDK dynamic agent and CGLIB dynamic agent This article is shared from Huawei cloud community< This article takes you to understand JDK dynamic agent and CGLIB dynamic agent >, author: skin shrimp. What's the difference between the two 1, Jdk dynamic proxy: use the interceptor (to imple ...

catalogue 1, Environment initialization 1. Environmental preparation 2, Manual injection of bean s 1. xml injection bean 2. Inject beans in @ configuration & @ bean mode 3, Automatically scan registered components and bean s 1. Scan packages using xml 2. Scan with @ ComponentScan 3. Exclusion of packet scanning 4, Other annotation ...

API gateway (service gateway) concept APl Gateway (API gateway), as its name implies, is an API oriented, serial and centralized strong control service that appears on the system boundary. The boundary here is the boundary of enterprise I system, which can be understood as enterprise application firewall, which mainly plays the role of is ...

  From the perspective of UML relationship, ApplicationContext and BeanFactory have both inheritance relationship and association relationship stay As mentioned in, many ApplicationContext implementations refer to a DefaultListableBeanFactory object and delegate bean management operations to it. The following is a code excerpted from G ...

Redis introduction Redis (Remote Dictionary Server), i.e. remote dictionary service, is an open source log type key value database written in ANSI C language, supporting network, memory based and persistent, and provides API s in multiple languages. Since March 15, 2010, the development of redis has been hosted by VMware. Since May 2013, t ...