chp1 项目选择和搭建

[TangMisaka23001]

• 项目选择
• 数据库搭建
• 后端搭建
• 前端搭建
• CI流水线
• 网关搭建
• 管理端和用户端都能看到实际页面
• 本地开发环境h2数据库和mock redis

[TangMisaka23001]

gradle加速

    maven {
      url "https://maven.aliyun.com/nexus/content/groups/public"
    }

[TangMisaka23001]

    // mapstruct
    implementation('org.mapstruct:mapstruct:1.4.2.Final')
    annotationProcessor('org.mapstruct:mapstruct-processor:1.4.2.Final')
    annotationProcessor('org.projectlombok:lombok-mapstruct-binding:0.2.0')

[TangMisaka23001]

    // query dsl
    implementation 'com.querydsl:querydsl-apt:5.0.0'
    implementation 'com.querydsl:querydsl-jpa:5.0.0'
    implementation 'com.querydsl:querydsl-core:5.0.0'
    annotationProcessor 'com.querydsl:querydsl-apt:5.0.0:jpa'

[TangMisaka23001]

    // guava
    implementation('com.google.guava:guava:30.1.1-jre')

[TangMisaka23001]

自定义 Generate POJOs.groovy IntelliJ IDEA 自定义 Generate POJOs.groovy 生成 POJO

[TangMisaka23001]

jdk新特性

• var
• switch表达式
• List.of()
• """ 多行文本块
• instanceof 强化
• yield关键字

  
  Boolean result = switch(day) 
  {
  case MON, TUE, WED, THUR, FRI ->
  { 
      System.out.println("It is WeekDay");
      yield true; 
  }
  case SAT, SUN ->
  { 
      System.out.println("It is Weekend");
      yield false; 
  }
  };

System.out.println("Result is " + result);