springboot 读取配置 application.yml

添加配配置信息

spring:
  application:
    name: dataExChangePlatform
  devtools:
    restart:
      enabled: true
      additional-paths: src/main/java
      exclude: WEB-INF/**
  freemarker:
    cache: false


server:
  port: 8000

repo:
  name: Repository
  type: mysql
  access: Native
  host: localhost
  db: test
  port: 3306
  user: root
  pass: toor@1234

依赖注入

package com.sugon.dataexchangeplatform.domain;

import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;
import org.springframework.validation.annotation.Validated;

@Component // 注册bean
@ConfigurationProperties(prefix = "repo") // 从配置文件中获取值
@Validated // 数据校验
public class DataBaseMetaConfig {
    private String name;
    private String type;
    private String access;
    private String host;
    private String db;
    private String port;
    private String user;
    private String pass;

    public String getName() {
        return name;
    }

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

    public String getType() {
        return type;
    }

    public void setType(String type) {
        this.type = type;
    }

    public String getAccess() {
        return access;
    }

    public void setAccess(String access) {
        this.access = access;
    }

    public String getHost() {
        return host;
    }

    public void setHost(String host) {
        this.host = host;
    }

    public String getDb() {
        return db;
    }

    public void setDb(String db) {
        this.db = db;
    }

    public String getPort() {
        return port;
    }

    public void setPort(String port) {
        this.port = port;
    }

    public String getUser() {
        return user;
    }

    public void setUser(String user) {
        this.user = user;
    }

    public String getPass() {
        return pass;
    }

    public void setPass(String pass) {
        this.pass = pass;
    }

    @Override
    public String toString() {
        return "DataBaseMeta{" +
                "name='" + name + '\'' +
                ", type='" + type + '\'' +
                ", access='" + access + '\'' +
                ", host='" + host + '\'' +
                ", db='" + db + '\'' +
                ", port='" + port + '\'' +
                ", user='" + user + '\'' +
                ", pass='" + pass + '\'' +
                '}';
    }
}

获取实例

package com.sugon.dataexchangeplatform;

import com.sugon.dataexchangeplatform.domain.DataBaseMetaConfig;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;

@SpringBootTest
class DataExChangePlatformApplicationTests {

    @Autowired // // 将DataBaseMetaConfig自动注入进来
    DataBaseMetaConfig config;


    @Test
    void contextLoads() {
        System.out.println(config);
    }
}