图片拷贝不过来,直接从github上下载 。

链接: https://github.com/DFX339/SpringBootDocumentNotes.git

Create a example

pom.xml

Controller:

The defferent between @RestController  and  @Controller:

@Controller  could return jsp、html or   (add @ResponseBody to return json)json

@RestController just could return json.

@RestController  = @Controller +@ResponseBody

@EnableAutoConfiguration: aim to tell springboot how to configure spring.

Main method: to auto starting spring,auto starting the tomcat web server.

When you see that your demo is successful.

@SpringBootApplication on you main class.

Locate you  main class above other clasese package.

@SpringBootApplication = @EnableAutoConfiguration +@ComponentScan

Main class demo  with use the @SpringBootApplication

@Configuration: load one class

@Import : load one special class

@ComponentScan: load all spring conponent.

@Configuration to configure xml

@Configuration :Recommend this annotations

@EnableAutoConfiguration : use this could auto configuration

@EnableAutoConfiguration : to Ingnore some class

@ComponentScan : find  you beans

@Autowired: inject object by constructor.

Structrue codes to use @ComponentScan:

@Repository:always use to annotation the Dao

Default configure file name. application.properties

@SpringBootApplication = @EnableAutoConfiguration + @Configuration + @ComponentScan

Use @EnableAutoConfiguration @Configuration @Import to annotation main class instead of @SpringBootApplication   demo.

@Import : point at some specific classes.

@Component: point at all class.

Springboot-devtools: A powerrful dependency!

Disable to cache in default.

If some files be modified ,the springboot- devtool will restart this program auto.

Restart detailed analysis: springboot worked with two classloaders.

Restart logs: you can figure out it by configuring in application.properties.

spring.devtools.restart.log-condition-evaluation-delta=false

Eclude some files ,project would not to restart when they are changed

Springboot devtool default to start,you can stop it by modifying the System param.

Trigger a brower refresh. (auto)

Use the configure file name definitied by self. Composed with –spring.config.name=Xxxxxx

Use specific configuration

@EnableConfigurationProperties:all class be annotated by @ConfigurationProperties

Use @Valitaded  anotations to validate attributes

Ouput the log fiiles

Springboot support tomcat/jetty ,the default port is 8080

Springboot servlet

Use springboot servlet

Configure springboot servlet in application.properties

Demo in springboot servlet

Modify the port in tomcat

Connect to mysql database;

Tomcat connect pool

Entity Class use @Entity annotations

JOOQ: java object orentied query

Springboot user redis

Connect redis

Springboot provides lots of databases,sql or nosql ,all of those will have XXXTemplate instance to operate.

Springboot cache use demo:

JMS: java message service

JMS-ActionMq:use demo:

JMS send meassages:

RabbitMQ

Send mesages:

Receive messages:

Use restTemplate by RestTemplateBuilder

Use webClient by WebClientBuilder

Springboot use quartz scheduler

50.5

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