Spring Boot使用自定义的properties

Posted 2020-09-16

spring boot使用application.properties默认了很多配置。但需要自己添加一些配置的时候，我们应该怎么做呢。

若继续在application.properties中添加如：

wisely.name=zhangsan
wisely.gender=male
wisely.age=20

定义配置类：

@ConfigurationProperties(prefix = "wisely")
public class WiselySettings {

    private String name;

    private String gender;

    private Integer age;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getGender() {
        return gender;
    }

    public void setGender(String gender) {
        this.gender = gender;
    }

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }
}

注入application.properties文件中的属性

若新用新的配置文件，如新建一个wisely.properties

wisely2.name=lisi
wisely2.gender=female
wisely2.age=30

需定义如下配置类

@Configuration
@PropertySource("classpath:wisely.properties")//注意路径
public class Wisely2Settings {

    @Value("${wisely2.name}")
    private String name;

    @Value("${wisely2.gender}")
    private String gender;

    @Value("${wisely2.age}")
    private Integer age;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getGender() {
        return gender;
    }

    public void setGender(String gender) {
        this.gender = gender;
    }

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }
}

@ConfigurationProperties(prefix = "wisely2",locations = "classpath:wisely.properties")

这个注解貌似已经取消了，所以这里使用@PropertySource注解

最后注意在spring Boot入口类加上@EnableConfigurationProperties

@SpringBootApplication
@EnableConfigurationProperties({WiselySettings.class})
public class DemoApplication {

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

Wisely2Settings.class不需要加，因为它没有使用@ConfigurationProperties注解

测试:

@Controller
public class TestController {

    @Resource
    WiselySettings wiselySettings;

    @Resource
    Wisely2Settings wisely2Settings;

    @RequestMapping("/test")
    public
    @ResponseBody
    String test() {
        System.out.println("wisely.name = " + wiselySettings.getName());
        System.out.println("wisely.gender = " + wiselySettings.getGender());
        System.out.println("wisely.age = " + wiselySettings.getAge());
        System.out.println("wisely2.name = " + wisely2Settings.getName());
        System.out.println("wisely2.gender = " + wisely2Settings.getGender());
        System.out.println("wisely2.age = " + wisely2Settings.getAge());
        return "ok";
    }
}

参考：http://412887952-qq-com.iteye.com/blog/2292728