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1. Create a table in the database to store the hits 2. Create a listener (MyWebListener) to implement the ServletContextListener interface. When the project is started, the hits are obtained through the dao layer (ContextMapper) and stored in the ServletContext. 3. Increase the number of visits when vi ...

Mybatis creates statement and result set generation statementHandler Result set processing Postscript Previous: Mybatis(3) executes sql procedure statementHandler In the Configuration class of Mybatis, there are the following three methods. If we want to generate a statement, we need to use a statement processor publ ...

Parse the databaseIdProvider element and configure the database type unique flag generator An interface named DatabaseIdProvider is defined in mybatis. The function of this interface is to obtain the unique flag of different data sources in mybatis. DatabaseIdProvider defines two methods, setProperties() method is used to configure custom prope ...

Resolve the typeAliases element to complete the registration of type aliases > Click to see the usage of the typeAliases element The typeAliases element is used to complete the configuration of type alias mapping in mybatis. We have learned a little about the type alias mechanism of mybatis. Its function is to provide a shorter name for the ...

Article catalog 1. Version selection 2. Using maven to create a project (project structure) image-20200626115714873 3.pom.xml 4. Configuration file (under resources) Configuration files for spring( applicationContext.xml) springmvc-config.xml mybatis-config.xml jdbc.properties log4j.properties mappe ...

Deep understanding of mybatis L2 cache In our daily projects, we often don't choose to use MyBatis's second level cache, because when you are not familiar with the second level cache. Because improper use can easily cause dirty reads, let's take a look at the slot points and highlights of L2 cache. F ...

I've heard the teacher said that the whole family bucket of spring framework has never known what it is. I read a lot with a sense of mystery and didn't really understand it. I simply learned the configuration of SSM framework by taking the opportunity of practical training. Spring, as a novice of Xi ...

MyBatis advanced Today, I'd like to share with you the following Annotation implementation single table development Annotation for multi table operation SQL construction statement of MyBatis Here are some key words of MyBatis annotation development Annotation implementation single table developme ...

  1. What is MyBatis caching? Using MyBatis cache can reduce the number of interaction between java application and database. From this point of view, its benefits are the same as using MyBatis to delay loading, which can improve the running efficiency of the program to a certain extent. For exampl ...

[emergency shelter] mybatis can use XML and annotation at the same time Put the conclusion first How do you use it? Mode 1 Mode 2: Mode 3: be careful: Cause analysis Reason for the establishment of mode 1 Limitations of mode 2 Reasons for the establishment of mode 3 be careful Put the conclu ...