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nacos配置讀取實現(xiàn)過程

更新時間：2026年01月04日 09:05:06 作者：TTc_

本文介紹了在Spring Boot應(yīng)用中如何指定和使用配置文件,創(chuàng)建配置類讀取Nacos配置,并通過接口返回給前端,同時使用@RefreshScope實現(xiàn)配置實時刷新

1.application中指定配置文件tbyf-public-config.yml

server:
  port: 19120

spring:
  application:
    name: @artifactId@
  cloud:
    nacos:
      username: @nacos.username@
      password: @nacos.password@
      discovery:
        server-addr: ${NACOS_HOST:tbyf-cloud-register}:${NACOS_PORT:8848}
        namespace: ${profiles.active}
      config:
        server-addr: ${spring.cloud.nacos.discovery.server-addr}
        namespace: ${profiles.active}
  config:
    import:
      - nacos:application.yml
      - nacos:${spring.application.name}.yml
      - nacos:tbyf-public-config.yml

2.tbyf-public-config.yml中添加配置信息

drugstoremanagement:
  # 調(diào)價管理
  drugPriceAdjustment:
    #藥品調(diào)價，未審核出、入庫類型的單據(jù)是否檢查提示出來 蘄春 1
    isCheck: 1

3.后端創(chuàng)建對應(yīng)配置類

并在啟動時讀取nacos中的配置

package com.tbyf.system.properties;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;

/**
 * 藥庫管理獲取參數(shù)
 * @author tancw
 * @date 2025/11/17
 */
@Data
@AllArgsConstructor
@NoArgsConstructor
@Component
@ConfigurationProperties(prefix = "drugstoremanagement")
public class DrugStoreManaProperties {
    // 藥品調(diào)價，未審核出、入庫類型的單據(jù)是否檢查提示出來 蘄春 1
    @Value("${drugPriceAdjustment.isCheck:0}")
    private String isCheck;
}

上面定義配置信息字段時，一定要給上默認(rèn)值，防止其它同事命名空間中沒有配置時，啟動程序讀取不到的問題發(fā)生

4.創(chuàng)建接口返回配置信息給前端

并加注解@RefreshScope（注解實現(xiàn)配置實時刷新）

package com.tbyf.system.controller;

import cn.hutool.core.util.ObjectUtil;
import com.alibaba.fastjson2.JSON;
import com.alibaba.fastjson2.JSONObject;

import com.tbyf.common.core.domain.R;
import com.tbyf.common.core.utils.HttpUtils;
import com.tbyf.common.core.utils.StringUtils;
import com.tbyf.common.core.utils.sign.Base64;
import com.tbyf.common.core.web.controller.BaseController;
import com.tbyf.common.core.web.domain.AjaxResult;
import com.tbyf.system.api.domain.ApiconvertBaseInfoModel;
import com.tbyf.system.domain.ApiconvertBaseinfo;
import com.tbyf.system.domain.ExecutSqlsInfo;
import com.tbyf.system.domain.vo.FieldMapping;
import com.tbyf.system.mapper.EmrDataMapper;
import com.tbyf.system.properties.DrugStoreManaProperties;
import com.tbyf.system.properties.InpatiWrokBeachProperties;
import com.tbyf.system.properties.OutpatientDoctorProperties;
import com.tbyf.system.properties.ReportUrlConfig;
import com.tbyf.system.service.IApiconvertBaseinfoService;
import com.tbyf.system.service.IFieldMappingService;
import com.tbyf.system.service.ISysDatasourceService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.ContentType;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.util.EntityUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.cloud.context.config.annotation.RefreshScope;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.*;

import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * 讀取nacos參數(shù)配置
 */
@RefreshScope  // 注解實現(xiàn)配置實時刷新
@RestController
@RequestMapping("/open/api")
@Api(tags = "接口工具")
public class OpenController extends BaseController {

    @Autowired
    DrugStoreManaProperties drugStoreManaProperties;


    @ApiOperation("藥庫管理獲取參數(shù)")
    @GetMapping("/queryDrugStoreManaProperties")
    public AjaxResult queryDrugStoreManaProperties(){
        return AjaxResult.success("操作成功",drugStoreManaProperties);
    }

}