configuartionProperties注解

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@configuartionProperties

作用

​ 用于将properties 文件中的属性或yml属性文件中的属性 放入pojo中

使用案例

@configuartionProperties + @Component

实体类

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import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;

@Component
@ConfigurationProperties(prefix = "me.user")
@Data
public class User {

    private String name;

    private String password;

    @Override
    public String toString() {
        return "User{" +
                "name='" + name + '\'' +
                ", password='" + password + '\'' +
                '}';
    }
}

测试方法

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import com.healthengine.medpro.fileSystem.FileSystemApplication;
import com.healthengine.medpro.fileSystem.controller.entity.User;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;

@RunWith(SpringRunner.class)
@SpringBootTest(classes = FileSystemApplication.class)
public class ConfigurationProperties {
    @Autowired
    private User user;

    @Test
    public void configuration(){
        System.out.println(user);
    }


}

配置文件设置

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me:
  user:
    name: baowengliang
    password: 123456

测试结果

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User{name='baowengliang', password='123456'}

@Bean + @ConfigurationProperties

实体类

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import lombok.Data;

@Data
public class User {

    private String name;

    private String password;

    @Override
    public String toString() {
        return "User{" +
                "name='" + name + '\'' +
                ", password='" + password + '\'' +
                '}';
    }
}

启动类

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@SpringBootApplication()
public class FileSystemApplication {

    public static void main(String[] args){
        SpringApplication.run(FileSystemApplication.class,args);
    }
    
    @Bean
    @ConfigurationProperties(prefix = "me.user")
    public User user(){
        return new User();
    }
}

测试方法

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import com.healthengine.medpro.fileSystem.FileSystemApplication;
import com.healthengine.medpro.fileSystem.controller.entity.User;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;

@RunWith(SpringRunner.class)
@SpringBootTest(classes = FileSystemApplication.class)
public class ConfigurationProperties {
    @Autowired
    private User user;

    @Test
    public void configuration(){
        System.out.println(user);
    }


}

配置文件设置

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me:
  user:
    name: baowengliang
    password: 123456

测试结果

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User{name='baowengliang', password='123456'}

@EnableConfigurationProperties + @ConfigurationProperties

实体类

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import lombok.Data;
import org.springframework.boot.context.properties.ConfigurationProperties;

@Data
@ConfigurationProperties(prefix = "me.user")
public class User {

    private String name;

    private String password;

    @Override
    public String toString() {
        return "User{" +
                "name='" + name + '\'' +
                ", password='" + password + '\'' +
                '}';
    }
}

启动类

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@SpringBootApplication()
@EnableConfigurationProperties(User.class)
public class FileSystemApplication {

    public static void main(String[] args){
        SpringApplication.run(FileSystemApplication.class,args);
    }
    
}

配置文件

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me:
  user:
    name: baowengliang
    password: 123456

测试类

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import com.healthengine.medpro.fileSystem.FileSystemApplication;
import com.healthengine.medpro.fileSystem.controller.entity.User;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.junit4.SpringRunner;

@RunWith(SpringRunner.class)
@SpringBootTest(classes = FileSystemApplication.class)
public class ConfigurationProperties {
    @Autowired
    private User user;

    @Test
    public void configuration(){
        System.out.println(user);
    }


}

测试结果

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User{name='baowengliang', password='123456'}