springboot读取yml数组

末蓝、 2022-11-19 01:27 212阅读 0赞

前些天发现了一个巨牛的人工智能学习网站，通俗易懂，风趣幽默，忍不住分享一下给大家。[点击跳转到教程][Link 1]

有时配置文件以yml形式展现，service层需要读取，我们可以利用@ConfigurationProperties注解实现。  
application.yml文件如下：

server:
      port: 8070
    nacos:
      servers:
        - "192.168.1.1"
        - "192.168.1.2"
        - "192.168.1.3"

编写一个配置类，读取yml文件

package com.hbk.nacos.config;
    
    import org.springframework.boot.context.properties.ConfigurationProperties;
    import org.springframework.stereotype.Component;
    
    import java.util.List;
    
    @Component
    @ConfigurationProperties(prefix = "nacos")
    public class NacosConfiguration { 
    
        List<String> servers;
    
        public List<String> getServers() { 
            return servers;
        }
    
        public void setServers(List<String> servers) { 
            this.servers = servers;
        }
    
    }

为了测试，我就不搞service了，直接controller层注入

package com.hbk.nacos;
    
    import com.izliang.nacos.config.NacosConfiguration;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RequestMethod;
    import org.springframework.web.bind.annotation.RestController;
    
    @SpringBootApplication
    public class NacosProviderApplication { 
    
        public static void main(String[] args) { 
            SpringApplication.run(NacosProviderApplication.class, args);
        }
    
        @RestController
        class EchoController { 
            @Autowired
            private NacosConfiguration configuration;
    
    
            @RequestMapping(value = "/test",method = RequestMethod.GET)
            public String test(){ 
                System.out.println(configuration.getServers());
                return "ok";
            }
        }
    }

启动访问http://ip:8070/test  
控制台输出  
![在这里插入图片描述][20210414090828876.png]

博客若对你有用，欢迎扫码打赏，你的打赏是我写作的动力。  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2h1YW5nYmFva2FuZw_size_16_color_FFFFFF_t_70_pic_center]

[Link 1]: https://www.captainai.net/flyop007/
[20210414090828876.png]: /images/20221022/551d707621ea47b282aa196060045973.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2h1YW5nYmFva2FuZw_size_16_color_FFFFFF_t_70_pic_center]: /images/20221022/34b6990096e948438d558fd4c4e1d655.png