Detailed explanation of integrated configuration of spring web MVC and Hibernate

There are many articles about the integration of spring and hibernate on the Internet. However, because those articles were written earlier, many of them are older versions such as spring 3 and Hibernate 4. So I use the updated version here to illustrate.

Add project dependency

First, we need a Java Web project. It is best to use Maven or gradle build tools to facilitate us to solve software dependencies. I use the gradle build tool here, and the build script is as follows. As long as we introduce spring webmvc and spring ORM packages, other spring dependencies will be automatically solved by the build tool. Then you need to introduce dependencies such as data source, hibernate and JSTL. At the end of the script, a task is defined to generate the corresponding POM file for the convenience of Maven tools.

Configure web xml

Then open WEB-INF / Web XML file, add the following.

Configure spring

There should be two corresponding spring configuration files / WEB-INF / ApplicationContext XML and / WEB-INF / dispatcher servlet xml。 The former is the root configuration file, which is used to configure back-end and global components such as database, and the latter is the MVC configuration file, which is used to configure MVC and web related components.

Then in / WEB-INF / ApplicationContext XML, we configure hibernate and spring integrated components. We need to configure beans such as data source, hibernatesessionfactory, hibernate transaction manager, transaction connection point and Hibernate template, and then use hibernate template when operating data to obtain the transaction management function controlled by spring.

Then configure the components of spring web MVC. In dispatcher servlet Add the following configuration to the XML. JSP view parser and type converter are added here. If you don't need custom type conversion, you can delete the corresponding fragment.

So far, the integration of hibernate and spring has been configured. Finally, I also wrote a small example on GitHub, which can be seen by interested students.