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Baizhi Education - Spring series courses - persistent layer integration Chapter I. persistent layer integration 1. Why does spring framework integrate with persistence layer technology 1. JavaEE The development needs the persistence layer to access the database. 2. JDBC Hibernate MyBatis There is a lot of code redundancy in the process of pers ...

Hystrix: Service fuse Problems faced by distributed systems There are dozens of dependencies for applications in complex distributed architecture, and each dependency will inevitably fail at some time! 1. Service avalanche When calling between multiple microservices, suppose microservice A calls microservice B and microservice C, and mi ...

springboot notes Reference from http://c.biancheng.net/spring_boot/ Parent project dependency management <!--SpringBoot Parent project dependency management,spring-boot-starter-parent Is all Spring Boot The parent dependency of the project, which is called Spring Boot The version arbitration center can uniformly manage some commo ...

python template rendering jinja2 - python web (3) ​      Jinja2 is a fast, expressive and extensible template engine. It was written by werkzueg author Armin ronacher (people used to call him mitsuhiko )Development, used for data rendering of python web html pages, flush with jsp of java servlet. Jinja2 makes it possible ...

Java from 0 to architect Directory: [Java from 0 to architect] learning record Link tracking component Why link tracking? There are many service units in the microservice architecture. If there are errors and exceptions, it is difficult to locate (a request may need to call multiple services, and the call complexity between internal ...

Relatively speaking, the writing is fairly complete. Basically, that's all you can use in your work. A good brain is better than a bad pen. Stored procedures, stored functions, engines, transactions, scheduled tasks, triggers, variables and so on are included. You can collect those you are interested in! 1. Connect to mysql mysql is divide ...

zookeeper Java client Project construction The official client of zookeeper is not separated from the server code. They are the same jar file, so we can directly introduce zookeeper maven. Please keep the version here consistent with the server version, otherwise there will be many compatibility problems <dependency> <groupI ...

1, Data sharing 1. Overview of data sharing Data sharing is data transfer. For example, how to transfer data to another Servlet class myservletttwo after MyServletOne is completed becomes data sharing 2. Data sharing solution (1) ServletContext interface (2) Cookie class (3) HttpSession interface (4) HttpServletRequest interface 2 ...

1, Overview serialize The objects in the program are stored directly in the form of files according to the sequence of objects in memoryDeserialization Reread the object data from the file into the program Is to read out the previously serialized object from the file and change it into an object againIn 2018, java officials found th ...

1, Experimental overview lab5 is mainly used to realize the B + tree index. It mainly has the functions of query, insertion and deletion. The query is mainly based on the characteristics of B + tree. The splitting of nodes should be considered for insertion (when the node tuples are full), the redistribution of elements in nodes should be cons ...