spring service annotation

method will not show the configured transaction settings.4. @Transactional annotations can be applied to interface definitions and interface methods, class definitions, and public methods of classes. Note, however, that only @Transactional annotations appear to be less than the open transaction behavior, which is only a meta-data that can be used to identify @Transactional annotations and the beans that are configured appropriately to have transactional behavior. In the above example, it is act

1, In a host-based configuration spring configuration file, you may see a configuration like spring container autowiredannotationbeanpostprocessor,commonannotationbeanpostprocessor, Persistenceannotationbeanpostprocessor and requiredannotationbeanpostprocessor the 4 beanpostprocessor. Registering these 4 beanpostprocessor functions is for your system to be able to identify the corresponding annotation

Spring MVC annotation development and use details, mvc use Details MVC annotation-based development is annotation-based class development for processors. For each defined processor, you do not need to register it in xml. You only need to annotate classes and methods in the code to complete registration. Define Processo

classes) rather than on any interface that the class implements. You can certainly use @Transactional annotations on the interface, but this will only take effect if you set up an interface-based proxy. Because annotations are not inherited, this means that if you are using a class-based proxy, the transaction's settings will not be recognized by the class-based proxy, and the object will not be wrapped by the transaction proxy (it will be identified as critical). Therefore, accept the suggesti

ModelAndView();mv.addObject("message", "Hello World!!!");mv.setViewName("/view/hello");return mv;}} In the body of Hello. jsp, the following content is written: The directory structure of this project is as follows: Enter http: // localhost: 8080/springmvc/user/getuser. Do to view the result. Note: If you want to use the @ autowired annotation, you must declare the autowiredannotationbeanpostprocessor bean in the

;contextconfiglocationparam-name> Param-value>/web-inf/config/spring-task.xmlparam-value> context-param>Midtask.java PackageCom.henu.task;Importorg.springframework.scheduling.annotation.Scheduled;Importorg.springframework.stereotype.Component; @Component Public classMidtask {/*** timed calculation. Executes every five seconds*/@Scheduled (Cron= "0/5 * * * *?") Public voidShow () {System.out.println ("Task1"); } /*** timed calculation.

example, it is actually the presence of the 5. The spring team's recommendation is that you use @Transactional annotations on specific classes (or methods of classes) rather than on any interface that the class implements. You can certainly use @Transactional annotations on the interface, but this will only take effect if you set up an interface-based proxy. Because annotations are not inherited, this means that if you are using a class-based proxy,

1. Enable support for @aspectj In addition to supporting schema configuration for AOP, spring supports annotation methods: using @aspectj-style facet declarations. Spring does not support @aspectj-style facet declarations by default, in order to support the need to use the following configuration: This allows spring t

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Annotation management is much simpler than the way XML is configuredSimply add the transaction annotations in the configuration file1 XML version= "1.0" encoding= "UTF-8"?>2 Beansxmlns= "Http://www.springframework.org/schema/beans"3 Xmlns:tx= "Http://www.springframework.org/schema/tx"4 XMLNS:AOP= "HTTP://WWW.SPRINGFRAMEWORK.ORG/SCHEMA/AOP"5 Xmlns:context= "Http://www.springframework.org/schema/context"6 Xmlns:xsi= "Http://www.w3.org/2001/XMLSchema-ins

SPRING-MVC Object Encapsulation JSON returns when deleting attributes in Object annotation method In the class name, followed by verbal annotations used in@JsonIgnoreProperties (value={"Comid"})//properties that you want to dynamically filter outCases@JsonIgnoreProperties (value={"Comid"})Public interface Interface Name {}@JsonIgnoreProperties (value={"Comid"})public class class Name {}This

, an exception thrown at a non-runtime, the compiler will check for an exception to be checked or a check exception), we specify the way to let the transaction roll back, as follows:@Transactional (Rollbackfor=exception.class)//Specify Rollback, rollback when an exception Exception is encounteredpublic void MethodName () {throw new Exception ("note");}@Transactional (Norollbackfor=exception.class)//Specifies no rollback and encounters a run-time exception (the throw new RuntimeException ("note")

Spring Mvc execution principle and xml annotation configuration (6)Spring MVC execution principle in Spring Mvc access process, each request first goes through many filters and is processed by DispatcherServlet; in a Spring MVC project, multiple dispatcherservlets can be con

/spring-beans.xsd Http://www.springframework.org/schema/context http://www.springframework.org/schema/context/ Spring-context-3.0.xsd HTTP://WWW.SPRINGFRAMEWORK.ORG/SCHEMA/AOP http://www.springframework.org/schema/aop/ Spring-aop-3.0.xsd Http://www.springframework.org/schema/task http://www.springframework.org/schema/task/ Sp