SpringBoot学习笔记<一>入门与基本配置

毕业实习项目技术学习笔记

参考文献

  学习视频

    2小时学会Spring Boot:https://www.imooc.com/learn/767

  学习资料

   SpringBoot入门:https://blog.csdn.net/Phapha1996/article/details/78515865

     【推荐】Spring boot <一>入门篇:https://www.cnblogs.com/ityouknow/p/5662753.html

    Spring Boot中文官方文档:https://www.breakyizhan.com/springboot/3028.html

    SpringBoot—访问关系型数据库—SpringData JPA:https://blog.csdn.net/phapha1996/article/details/78712597

     【推荐】Spring Boot 参考指南(翻译中):

      http://oopsguy.com/documents/springboot-docs/1.5.4/index.html#boot-features-spring-mvc

    【推荐】Spring Boot + Jpa(Hibernate) 架构基本配置:

      https://blog.csdn.net/javahighness/article/details/53055149
属性配置
  spring.datasource.url:jdbc:mysql://127.0.0.1:3306
  spring.datasource.username:root
  spring.datasource.password:123456
  spring.datasource.driver-class-name:com.mysql.jdbc
配置文件

  目录:(src/main/resources)
  application.properties:(src/main/resources)
  server.port:8081
  server.context-path:/projectname
  

  application.yml:

server:
  port: 8080
  context-path: /demo
  tomcat:
    uri-encoding: UTF-8

spring:
  datasource:
    url : jdbc:mysql://xxxx:3306/xxxxx
    username : xxxx
    password : xxxxx
    driverClassName : com.mysql.jdbc.Driver
  jpa:
    database : MYSQL
    show-sql : true
    hibernate:
      ddl-auto : update
      naming-strategy : org.hibernate.cfg.ImprovedNamingStrategy
    properties:
      hibernate:
        dialect : org.hibernate.dialect.MySQL5Dialect

  


注解
@Controller //处理http请求,默认返回resources/templates下的html模板(view),返回参数为String类型。
@RequestMapping("/users")
public class XX{
}

@RestConroller //Spring4之后新加的注解,原来返回json需要@ResponseBody配合@Controller
public class XXX{
  @Autowired
  private GirlProperties girlProperties;
}

@Value("${cupSize}")
private String cupSize;

@RequestMapping(value="/user/", method=RequestMethod.GET) //配置URL映射
public String say(){
  return cupSize;
}

@Component
@ConfigurationProperties(prefix="girl")
public class GirlProperties{
  private String cupSize;
  public String getCupSize(){
    return cupSize;
  }
}


Controller的使用
@PathVariable:获取url中的数据
@RequestParam:获取请求参数的值,属性有value,required,defaultValue
@GetMapping:组合注解Get
@PostMapping:组合注解Post
===========================================
【数据库】
Spring-Data-Jpa
JPA:Java Persistence API,定义了一系列对象持久化的标准,实现规范的产品有:Hibernate、TopLink等
@Entity
public class Girl{
  @Id
  @GenerateValue //自增
  private Integer id;
  private String cupSize;
  //setter or getter methods
}
@Transactional //添加事务

Spring Boot 参考指南(翻译中)

原文地址:https://www.cnblogs.com/johnnyzen/p/9696358.html