table of Contents
1. Overall
| Comment | effect |
| @controller controller | Inject service, Controller layer |
| @service service | Data injection, DAO layer |
| @repository | Data access, DAO layer |
| @component | Ordinary POJO is instantiated into the Spring container |
2. Summary
- The annotations under the four categories correspond to their applicable functions;
- There are corresponding small function annotations under each class, which will be recorded later;
Reference: https://www.cnblogs.com/javastack/archive/2020/07/23/13366510.html
The following is a preliminary understanding of small function notes
| Annotation categories | Small notes | Corresponding to small functions | Reference |
| @controller controller | @RequestMapping | Processing request address mapping | https://blog.csdn.net/qq_30507287/article/details/80839627 |
| @responsebody | The function of the @responseBody annotation is to convert the object returned by the controller method into a specified format through an appropriate converter, and then write it to the body area of the response object.
Usually used to return JSON data or XML data.
It should be noted that after using this annotation, the processor will not be tried again, but the data will be directly written to the input stream. Its effect is equivalent to outputting the data in the specified format through the response object. |
https://www.cnblogs.com/mengtaoadmin/p/11184014.html | |
| @Autowired | Inject a defined bean | https://blog.csdn.net/topdeveloperr/article/details/87971446 | |