JavaRush /ื‘ืœื•ื’ Java /Random-HE /ืื‘ื™ื‘ ืœื ืžืคื—ื™ื“, ืื• ืื™ืš ืœื—ื‘ืจ ืžืกื“ ื ืชื•ื ื™ื ืœืคืจื•ื™ืงื˜ ืกื˜ื•ื“ื ื˜ ื‘-5 ...
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ืจึธืžึธื”

ืื‘ื™ื‘ ืœื ืžืคื—ื™ื“, ืื• ืื™ืš ืœื—ื‘ืจ ืžืกื“ ื ืชื•ื ื™ื ืœืคืจื•ื™ืงื˜ ืกื˜ื•ื“ื ื˜ ื‘-5 ื“ืงื•ืช

ืคื•ืจืกื ื‘ืงื‘ื•ืฆื”
ืชื•ื›ืŸ ืžื—ื–ื•ืจ ื”ืžืืžืจ ืจืืฉื™ืช, ื‘ื•ืื• ื ื™ืฆื•ืจ ืฉืจืช ืื™ื ื˜ืจื ื˜ ื‘ืืžืฆืขื•ืช Spring Boot . ื‘ืงื•ื‘ืฅ ื”-pom , ื”ื•ืกืฃ ืืช ื”ืชืœื•ื™ื•ืช ื”ื‘ืื•ืช ืœื‘ืœื•ืง <dependencies> :
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
    <groupId>com.h2database</groupId>
    <artifactId>h2</artifactId>
</dependency>
ื”ืชืœื•ืช ื”ืจืืฉื•ื ื” ื“ืจื•ืฉื” ื›ื“ื™ ืฉ-Spring ื™ืขื‘ื•ื“ ืขื ืžืกื“ ื”ื ืชื•ื ื™ื. ื”ืชืœื•ืช ื”ืฉื ื™ื™ื” h2 (H2) ืชื—ืงื” ืืช ืžืกื“ ื”ื ืชื•ื ื™ื ืœืœื ื”ื•ืจื“ื•ืช, ื”ืชืงื ื•ืช ื•ืชืฆื•ืจื•ืช ืžื•ืจื›ื‘ื•ืช. ืขื›ืฉื™ื• ืื ื™ ืจื•ืฆื” ืฉืชืฉืืœ ืืช ืขืฆืžืš ืืช ื”ืฉืืœื”: "ืžื” ืื ื™ ืจื•ืฆื” ืœื”ื™ื•ืช? ืงื•ื“ืŸ ืงื•ืฃ ืฉืœื ืžืกื•ื’ืœ ืœื›ืชื•ื‘ ืžืฉื”ื• ื‘ืขืฆืžื•? ืื• ืžืคืชื—?" ืื ืืชื” ืจื•ืฆื” ืœื”ื™ื•ืช ืžืคืชื—, ื”ืงืคื“ ืœืงืจื•ื ืกืคืจ ื˜ื•ื‘ ืขืœ ื”ืžืฉืžืขื•ืช ื•ื”ืžื•ืฉื’ ืฉืœ ืื‘ื™ื‘ , ืื• ืœืคื—ื•ืช ืกื“ืจืช ืžืืžืจื™ื . ื›ืจื’ืข ืืชื” ื™ื›ื•ืœ ืœื—ืคืฉ ื‘ืื™ื ื˜ืจื ื˜ ืžื™ื“ืข ืขืœ ืžื” ื–ื” ืฉืขื•ืขื™ืช, ื™ืฉื•ื™ื•ืช, ื”ื–ืจืงืช ืชืœื•ืช ื‘ืื‘ื™ื‘ ื•ืฉื™ื˜ื•ืช ืœื”ื’ื“ืจืช ืฉืขื•ืขื™ืช. ื‘ื•ืื• ื ื—ื–ื•ืจ ืœื‘ืกื™ืกื™ื ืฉืœื ื•. ื›ืœ ื”ืชืฆื•ืจื” ืชื”ื™ื” ื›ื“ืœืงืžืŸ: ื‘- resourses ืฆื•ืจ ืงื•ื‘ืฅ application.yml (ื”ืฉื ื—ืฉื•ื‘ ืžืื•ื“!), ืžืœื ืื•ืชื• ื‘ืชื•ื›ืŸ:
spring:
  datasource:
    driverClassName: org.h2.Driver
    url: jdbc:h2:mem:test;
    username: sa
    password:
    h2:
      console:
        enabled: true
  jpa:
    hibernate:
        ddl-auto: create
    generate-ddl: true
    show-sql: false
    properties:
      hibernate:
        dialect: org.hibernate.dialect.H2Dialect
ื‘ื•ืื• ื ืกืชื›ืœ ืขืœ ืžืงื•ืจ ื”ื ืชื•ื ื™ื: driverClassName: ืžืฆื™ื™ืŸ ื‘ืื™ื–ื” ืกื•ื’ ื‘ืกื™ืก ื ืฉืชืžืฉ, ืขื‘ื•ืจื ื• ื–ื” h2. ืื ื”ืชืงื™ื ื• ืืช Postgres, ื”ื™ื™ื ื• ื›ื•ืชื‘ื™ื rg.postgresql.Driver ; url: - ื–ื”ื• ื”ืžืงื•ื ื‘ื• ื ืžืฆื ืžืกื“ ื”ื ืชื•ื ื™ื, ื‘ืžืงืจื” ืฉืœื ื• ื”ื•ื ืžืžื•ืงื ื™ืฉื™ืจื•ืช ื‘ื–ื™ื›ืจื•ืŸ ื”ืคืจื•ื™ืงื˜, ื›ืคื™ ืฉืžืฆื•ื™ืŸ ื‘ืžื™ืœื” mem (ืžื”ื–ื™ื›ืจื•ืŸ), ื›ืœื•ืžืจ, ื›ืืฉืจ ื”ืืคืœื™ืงืฆื™ื” ืชื•ืคืขืœ ืžื—ื“ืฉ, ืžืกื“ ื”ื ืชื•ื ื™ื ื™ื™ื•ื•ืฆืจ ืžึดื—ึธื“ึธืฉื. ืืชื” ื™ื›ื•ืœ ื‘ืžืงื•ื jdbc:h2:mem:test; ื›ืชื•ื‘ jdbc:h2:~/test; , ื•ืžืกื“ ื”ื ืชื•ื ื™ื ื™ืื•ื—ืกืŸ ื‘ืชื™ืงื™ื™ืช ื”ืคืจื•ื™ืงื˜. ืฉื•ื‘, ืื ื”ื™ื™ื ื• ืžื•ืชืงืŸ Postgres, ื”ื™ื™ื ื• ื›ื•ืชื‘ื™ื ืžืฉื”ื• ื›ืžื• jdbc:postgresql://localhost:5432/mydb . ื›ืขืช jpa : hibernate.ddl-auto: ืื•ืžืจ ืžื” ืœืขืฉื•ืช ืขื ืกื›ื™ืžืช ื”ื‘ืกื™ืก ื›ืืฉืจ ื”ื™ื™ืฉื•ื ืžื•ืคืขืœ ืžื—ื“ืฉ. ืขื›ืฉื™ื• ื™ืฉ ื›ืืŸ create - ื–ื” ืื•ืžืจ ืœื™ืฆื•ืจ ืฉื•ื‘, ื–ื” ื™ื›ื•ืœ ืœื”ื™ื•ืช ื’ื ืขื“ื›ื•ืŸ - ื”ื•ืกืคื” ืœืžืกื“ ื”ื ืชื•ื ื™ื, create-drop - ื ื™ืงื•ื™ ื‘ืขืช ื”ื”ืคืขืœื”. ื”ืžื™ืœื” ืชืจื“ืžื” ืื™ื ื” ืกืชืžื™ืช ื›ืืŸ, ืงืจืื• ืขืœื™ื” ื‘ืื™ื ื˜ืจื ื˜, ื›ื™ ื ืฆื˜ืจืš ืื•ืชื”. ืฉืืจ ื”ืžื™ืœื™ื ืื™ื ืŸ ื—ืฉื•ื‘ื•ืช ื›ืขืช. ืœืื—ืจ ืžื›ืŸ, ื‘ื•ืื• ื ืจืื” ื›ื™ืฆื“ ื ื™ืชืŸ ืœืžืœื ืžืกื“ ื ืชื•ื ื™ื ื–ื” ื•ื›ื™ืฆื“ ืœืขื‘ื•ื“ ืื™ืชื•.
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