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SpringBoot项目获取统一前缀配置以及获取非确定名称配置

news 来源：原创 2024/9/20 4:51:17

SpringBoot项目获取统一前缀配置以及获取非确定名称配置

在SpringBoot项目中，我们经常看到统一前缀的配置，我们该怎么统一获取
my.config.a.name=xiaoming
my.config.a.age=18
my.config.a.address=guangdong

my.config.b.name=xiaomli
my.config.b.age=20
my.config.b.address=shandong

方式一：使用对应的配置类并结合注解：@ConfigurationProperties(prefix = “xxx.xxx”)

配置文件：

my.config.name=xiaoming
my.config.age=18
my.config.address=guangdong

对应的配置类：MyProperties

import lombok.Getter;
import lombok.Setter;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;/*** @author gooluke*/
@Component
@ConfigurationProperties(prefix = "my.config")
@Getter
@Setter
public class MyProperties {private String name;private int age;private String address;
}

获取配置类，打印属性：

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;@RestController
@RequestMapping("/test")
public class TestController {@Autowiredprivate MyProperties myProperties;@RequestMapping("/show")public void show() {System.out.println("myProperties.getName() = " + myProperties.getName());System.out.println("myProperties.getAge() = " + myProperties.getAge());System.out.println("myProperties.getAddress() = " + myProperties.getAddress());}
}

打印结果：
在这里插入图片描述

方式二：获取统一前缀，而后面非确定字段名的配置

配置文件：

my.config.a.name=xiaoming
my.config.a.age=18
my.config.a.address=guangdongmy.config.b.name=xiaomli
my.config.b.age=20
my.config.b.address=shandong

对应的配置类：

import lombok.Getter;
import lombok.Setter;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;import java.util.Map;/*** @author gooluke*/
@Component
@ConfigurationProperties(prefix = "my")
@Getter
@Setter
public class MyProperties2 {//这里的config得对应上my.config.xx里的configprivate Map<String, UserInfoConfig> config;@Setter@Getterpublic static class UserInfoConfig {private String name;private Integer age;private String address;}}

获取配置类，打印属性：

@Autowired
private MyProperties2 myProperties2;@RequestMapping("/show2")
public void show2() {Map<String, MyProperties2.UserInfoConfig> config = myProperties2.getConfig();config.forEach((user, userInfoConfig) -> {System.out.println("user = " + user);System.out.println("userInfoConfig.getName() = " + userInfoConfig.getName());System.out.println("userInfoConfig.getAge() = " + userInfoConfig.getAge());System.out.println("userInfoConfig.getAddress() = " + userInfoConfig.getAddress());});
}