crucible annotations

OverviewIn a previous article, the introduction of injecting yourself into a bean, if there are @async and @transaction, if you use @autowire to inject itself, will report a cyclic dependency if you use Beanfactoryaware to inject yourself, Will invalidate the @transaction. For example:@Service Public classMyServiceImplementsbeanfactoryaware{PrivateMyService Self; //Invalid transaction annotations@Transactional Public voidnotwork () {...} @Async Public

hibenate Annotationspurpose of using annotations: To simplify the configuration of cumbersome ORM mapping files (*.HBM)JPA Full Java Persistence APIJPA annotations are specifications and standards for Java EEJPA-Hibernate relationship: JPA is a standard interface, Hibernate is implemented, but its function is a superset of JPAHibernate relationships with JPA through three components of hibernate-annotation,

Common Spring annotations and spring annotations Enable automatic scanning before using annotations The base-package is the package to be scanned (including the sub-package ). @ Configuration regards a class as an IoC container. If @ Bean is registered in a method header, it will act as the Bean in the Spring container. @ Scope annotation Scope @ Lazy (true) indi

Original link:http://www.8qiu.cn/archives/1172 Annotation Package Detail/import Statement @Service Import Org.springframework.stereotype.Service; @Repository Import Org.springframework.stereotype.Repository; @Component Import org.springframework.stereotype.Component; @Autowired Import org.springframework.beans.factory.annotation.Autowired; @Transactional Import org.springframework.

Annotations are an easier way to add information to our code, and with annotations, we can use some data very conveniently at the right time. The concept of a specific annotation is not expanded, specifically using an example to illustrate the use of custom annotations.The specific scenario is that we opened a supermarket, the supermarket has an automatic container machine, container machine products have p

Spring Notes 2-annotations, spring2-Annotations I. Differences between attributes and member variables:Attribute: exposed. getxxx/setxxx is called an attribute;Member variable: private String name is a member variable or field. 2. Writing applicationContext. xmlXmlns = "http://www.springframework.org/schema/beans"Xmlns: xsi = "http://www.w3.org/2001/XMLSchema-instance"Xsi: schemaLocation = "http://www.sprin

Spring not only supports its own defined @autowired annotations, it also supports several annotations defined by the JSR-250 specification, namely @resource, @PostConstruct, and @predestroy.The function of the @Resource is equivalent to @autowired, but @autowired is automatically injected by Bytype, and @resource is automatically injected by ByName by default. @Resource There are two attributes that are imp

One, what is duplicate annotationAllow multiple use of the same annotation on the same declaration type (class, property, or method) Simple example of secondJava 8 also has a solution for reusing annotations, but not very readable, such as the following code: Copy Code code as follows: Public @interface Authority { String role (); } Public @interface Authorities {Authority[] Value ();} public class Repeatannotationuseold

A detailed description of common annotations in Spring, spring annotations Description of the configuration file when annotations are used in spring: The following describes the usage of some common Annotations: @Autowired private IReportService reportService ; Spring2.5 introduces the @ Autowired annotation, which

Tags: autowired ResourceSpring (3)Spring not only supports its own defined @autowired annotations, it also supports several annotations defined by the JSR-250 specification, namely @resource, @PostConstruct, and @predestroy.The function of the @Resource is equivalent to @autowired, but @autowired is automatically injected by Bytype, and @resource is automatically injected by ByName by default. @Resource The

Spring common annotations use annotations to construct IoC containers. springioc Construct an IoC Container Using annotations Use annotations to register beans with Spring containers. You must register For example, specify a package in base-package. Indicates cn. gacl. in a java package and its sub-packages, if a cla

Spring not only supports its own defined @autowired annotations, it also supports several annotations defined by the JSR-250 specification, namely @resource, @PostConstruct, and @predestroy.The function of the @Resource is equivalent to @autowired, but @autowired is automatically injected by Bytype, and @resource is automatically injected by ByName by default. @Resource There are two attributes that are imp

Springboot annotations and springboot annotations @ RestController and @ RequestMapping Annotation The first annotation used in our Example class is @ RestController. This is called a constructor (stereotype) annotation. It provides suggestions for people who read the code. For Spring, this class plays a special role. In this example, our class is a web @ Controller, so Spring will ask for the incoming web

As we all know, the Android resource file is an int type ID to save its reference, through the annotation type, we can write the code, the time to find the parameter type of error, avoid potential bugs, as follows:By @LayoutRes We specify that the parameter must be in R.LAYOUT.XXX format, and the IDE will prompt us for errorsIntroduction of annotation types into the project through GradleCompile ' com.android.support:support-annotations:23.1.1 'Androi