Spring Annotations annotion--2017.08.27

Source: Internet
Author: User

1 The role of annotations in spring

The premise is that in the XML configuration file

<context:compoent-scan base-package= "cn.itcast" ></context:compoent-scan> annotations Auto-scan   file is Base-package


I now understand the role of a configuration XML. We don't need to configure it in XML anymore.

In simple terms, it is a generalization of three types

Above the class: @ Component value=

@ Controller: Control Layer value=

@ Serivice: Service Layer value=

@ Repository: Persistent layer value=

Above the properties: @Autowired

@Resource name=

Spring Annotations annotion--2017.08.27

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.