spring service annotation

In the previous article in this series, we talked about the use of dynamic proxy to complete transaction processing. In this way, all the public methods at the service layer are added to the transaction, this is obviously not what we need. What we need to proxy is the methods that need to operate the database. In this article, we will talk about how to use the Java Annotation (

Identify a class as a Bean using @Repository, @Service, @Controller, and @ComponentSpring has introduced several annotations to simplify the development of spring since version 2.0. @Repository annotations belong to the first batch introduced, which identifies the class of the data Access layer (DAO layer) as a Spring Bean. Just label the note on the DAO class. A

()　{ 　　　　bbtForumService.getAllBoard(); 　　　　System.out.println("call　listAllBoard　method."); 　　　　return　"listBoard"; 　　} } From the code above, we can see that there is no difference between Bbtforumcontroller and general class, it does not implement any special interface, so it is an authentic POJO. The magic wand that makes this POJO unique is the annotation of Spring MVC! Two annotations were used at t

Javax.annotation.PreDestroy; Import Javax.annotation.Resource; Import org.springframework.stereotype.Component; Import com.mth.bean.Student; Import Com.mth.dao.IStuDao; @Component ("Stuser") public class Service { private Istudao dao; The method executed before service initialization is equivalent to the Init-method property in the configuration file @PostConstruct public void init () { System.ou

1. identify the class as a Bean using @Repository, @Service, @Controller, and @Component: Spring has been introduced since version 2.0 to simplify the development of spring. @Repository annotations are among the first to be introduced to identify the classes of the data Access layer (DAO layer) as Spring beans. Simply

("127.0.0.1"); Date now = new Date (); User.setlastvisit (Now.gettime ()); Userservice.handleuserlogin (user);} }Here, we let Testuserservice directly inherit from the abstract test class provided by Spring, and later this article will dissect this abstract test class. All you need to know here is that the purpose of this abstract test class is to let the TestContext test framework run on the JUnit 4.4 test framework.At ①, a class

today I've sorted out the annotations that spring uses: I hope I can help you! @ServiceFor labeling business layer components @ControllerUsed to label the control layer component (such as action in struts) @RepositoryUsed to annotate a data access component, the DAO component @ComponentAs a component, we can use this annotation to annotate when the component is not properly categorized. @AutowiredThe ge

that the agreement is better than the configuration. Solution: The transformation process is to first add the @ repository tag to the DAO implementation class, which indicates that this is a service of the persistent layer. The two-layer tag @ service and @ controller are implemented as follows: import org.springframework.stereotype.Repository;...@Repositorypublic class ScDbInfoDAOImpl extends SqlMapClien

Spring annotation Component In the previous article, we described dependency injection annotations in detail, especially @ Autowired. However, our bean definition declaration is still placed in the xml configuration file. Of course, Spring provides a mechanism to automatically scan class paths and automatically register BeanDefinition with the container. This is

Spring Timer technology Terminator -- Implement Spring timer using Scheduled Annotation There are two ways to implement the timer function in Spring: Scheduled annotation mode and XML configuration mode, this blog introduces how to use Scheduled

org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Service;@Servicepublic class PersonService {@Autowiredprivate PersonDao personDao;public Person getPerson(int id) {return personDao.selectPersonById(id);}}The @ Service annotation is used in the Service class, And the @ Autowired ann