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yaml配置和properties配置的区别：

1.yaml配置是有序的，properties配置是无序的

2.自定义的yaml目前不支持使用注解直接注入到SpringBoot项目中

依赖

一、yaml注入数组

1.新建并配置application.yml文件

server:  port: 8081  servlet:    context-path: /alvin## 配置不同服务器Redis集群redis:  port: 6379  hosts:    - 121.40.80.81    - 121.40.80.82    - 121.40.80.83    - 121.40.80.84

2.创建实体类RedisCluster.java

//将此类注入Spring容器@Component//引入Redid相关配置@ConfigurationProperties("redis")public class RedisCluster {
       private Integer port;    private List
   
     hosts;    @Override    public String toString() {
           return "RedisCluster{" +                "port=" + port +                ", hosts=" + hosts +                '}';    }    public Integer getPort() {
           return port;    }    public void setPort(Integer port) {
           this.port = port;    }    public List
    
      getHosts() {
           return hosts;    }    public void setHosts(List
     
       hosts) {
           this.hosts = hosts;    }}
     
    
   

3.进行单元测试

二、yaml注入对象

1.配置application.yml

server:  port: 8081  servlet:    context-path: /alvinredis:  port: 6379  hosts:    - 121.40.80.81    - 121.40.80.82    - 121.40.80.83    - 121.40.80.84  redisList:    - port: 6379      host: 121.40.80.90    - port: 6380      host: 121.40.80.91

2.修改实体类RedisCluster,创建Redis实体类

• RedisCluster

@Component@ConfigurationProperties("redis")public class RedisCluster {
       private Integer port;    private List
   
     hosts;    //引入对象    private List
    
      redisList;    @Override    public String toString() {
           return "RedisCluster{" +                "port=" + port +                ", hosts=" + hosts +                ", redisList=" + redisList +                '}';    }    public List
     
       getRedisList() {
           return redisList;    }    public void setRedisList(List
      
        redisList) {
           this.redisList = redisList;    }    public Integer getPort() {
           return port;    }    public void setPort(Integer port) {
           this.port = port;    }    public List
       
         getHosts() {
           return hosts;    }    public void setHosts(List
        
          hosts) { this.hosts = hosts; }}
        
       
      
     
    
   

• Redis

public class Redis {
       private Integer port;    private String host;    @Override    public String toString() {
           return "Redis{" +                "port=" + port +                ", host='" + host + '\'' +                '}';    }    public Integer getPort() {
           return port;    }    public void setPort(Integer port) {
           this.port = port;    }    public String getHost() {
           return host;    }    public void setHost(String host) {
           this.host = host;    }}

3.进行单元测试

三、profile实现分工配置

 properties和yaml是一样的 只是文件扩展名不同

启动方式：

在需要启动的配置环境下，写激活配置：

spring.profiles.active=dev

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