spring boot——读取应用配置——方式三——@ConfigurationProperties

港控/mmm° 2023-09-28 23:53 1阅读 0赞

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配置文件：

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创建映射文件：

package org.example.pojo;
    import org.springframework.boot.context.properties.ConfigurationProperties;
    import org.springframework.stereotype.Component;
    
    @Component           //使用Component注解，声明一个组件，被控制器依赖注入
    @ConfigurationProperties(prefix = "obj")                //obj为配置文件中key的前缀
    public class StudentProperties
    {
        private String sname;
        private int sage;
    
        public String getSname()
        {
    
            return sname;
        }
    
        public void setSname(String sname)
        {
    
            this.sname = sname;
        }
    
        public int getSage()
        {
    
            return sage;
        }
    
        public void setSage(int sage)
        {
    
            this.sage = sage;
        }
    
        @Override
        public String toString()
        {
    
            return "StudentProperties [sname=" + sname + ", sage=" + sage + "]";
        }
    }

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测试：

package org.example.controller;
    
    import org.example.pojo.StudentProperties;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RestController;
    
    
    @RestController
    public class ConfigurationPropertiesController
    {
    
        @Autowired
        StudentProperties studentProperties;
    
    
        @RequestMapping("/testConfigurationProperties")
        public String  testConfigurationProperties()
        {
    
            return studentProperties.toString();
        }
    
    }

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