Basic knowledge of SSM

The Spring ###

the Spring framework is a container, its main role is to create and manage objects.

Spring framework implements decoupling.

Spring Framework realized by DI IoC.

About Spring Framework, must grasp and understand: the

basic concepts and features of 1. Spring;

2. common annotation: annotation four general annotation, automatic assembly;

3 and on the difference between `@ Autowired` of` @ Resource` ;

4. the Spring expression, it is recommended to find spare time to learn oNGL.

SPRINGMVC ###

SPRINGMVC major problem with the process in response to receiving the request.

About SpringMVC framework, we must grasp and understand:

1. Create SpringMVC project and complete the configuration;

2. conquer some notes: `@ RequestMapping`,` @ ResponseBody` , `@ RequestParam`,` @ RestController`, `@ GetMapping` , PostMapping` @ `,` @ ExceptionHandler`;

3. master forwarding and redirection and forwarding the encapsulated data forwarding;

4. JSON text in response to master mode;

5. Mastering interceptors;

6. master exception handling .

MyBatis ###

MyBatis persistence layer developed to solve the problem more complicated legacy mode.

About MyBatis framework, we must grasp and understand:

1. The basic CRUD functions development;

2. query, when the need to customize the alias;

3 VO class when required;

4. Master `<resultMap>` use;

5. master dynamic SQL `<foreach>` use;

6. appreciated {#} `` difference and the `` $ {}.