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Original Text http://blog.csdn.net/yulei_qq/article/details/22057633 theme MyBatis There are two ways to associate nested queries with nested results, which is explained in this paper. The previous chapter describes a many-to-one relationship, using <association></association>, which is a complex type of association ...

In the previous article< Detailed description of <environments> configuration elements for Mybatis configuration > We already know that there are two configurable elements, one is the configuration of data source and connection pool, and the other is the configuration of transaction manager. In the last article, we just described br ...

I love mybatis because of the freedom of sql mapping, sql in the hand, everything I have that feeling!However, due to its incomplete ORM framework, we gain the freedom of SQL and lose the natural feature of ORM-compatible multilibraries.This article tells you how to make mybatis lightweight support database compatibility? Beacuse of some reason ...

MyBatis is a lightweight ORM library. MyBatis can store POJO classes into databases or convert data from databases into POJO classes. Unlike Hibernate and other libraries, MyBatis recommends using the way of writing SQL statements in XML configuration to convert data, which greatly improves flexibility. Here is a simple example to illustrate t ...

Spring MVC believes that you are no longer unfamiliar, you may have a disgusting feeling about Spring's various XML configurations. Spring's official Spring boot has been published for a long time. Spring boot is a lightweight framework of "convention is better than configuration". Spring boot first solves all kinds of tedious XML con ...

New Statement Handler Analysis of Configuration SimpleExecutor's doUpdate method has been analyzed above: 1 public int doUpdate(MappedStatement ms, Object parameter) throws SQLException { 2 Statement stmt = null; 3 try { 4 Configuration configuration = ms.getConfiguration(); 5 StatementHandler handler = configuration.n ...

Brief Introduction and Dependence The premise of the project is to install MySQL database, and establish two databases, one is master and the other is slave, and both databases have a user table. The table export statement is as follows: DROP TABLE IF EXISTS `user`; CREATE TABLE `user` ( `id` int(10) unsigned NOT NULL AUTO_INCREMENT, `name` ...

Page Helper is used to paginate with mybatis and Page Interceptor is used to understand the interceptor of mybatis. Mybatis version is 3.4.6, and Mybatis Helper version is 5.1.3. 1,PageInterceptor Start with the previous code, List-1 as follows:     List-1 @Test public void testPage() { PageHelper.startPage(2, 3); List<Person ...

Complete CRUD operation In the previous article, we had a brief idea of how Mybatis works and how it works. This time, we used Mybatis to complete the CRUD, reinforcing Mybatis development steps and some details Structure between Package and Class Increase Students configuration file <?xml version="1.0" encoding="UTF-8"?> < ...

In the project encountered a need to do read-write separation scenario. For old projects, to minimize code intrusion and achieve read-write separation at the bottom is crashing. There are two main points in the technology used: spring dynamic data source mybatis interceptor spring dynamic data source In the case of multiple data sources, spri ...