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nacos配置读取实现过程

作者:TTc_

本文介绍了在Spring Boot应用中如何指定和使用配置文件,创建配置类读取Nacos配置,并通过接口返回给前端,同时使用@RefreshScope实现配置实时刷新

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:
  # 调价管理
  drugPriceAdjustment:
    #药品调价,未审核出、入库类型的单据是否检查提示出来 蕲春 1
    isCheck: 1

3.后端创建对应配置类

并在启动时读取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;

/**
 * 药库管理获取参数
 * @author tancw
 * @date 2025/11/17
 */
@Data
@AllArgsConstructor
@NoArgsConstructor
@Component
@ConfigurationProperties(prefix = "drugstoremanagement")
public class DrugStoreManaProperties {
    // 药品调价,未审核出、入库类型的单据是否检查提示出来 蕲春 1
    @Value("${drugPriceAdjustment.isCheck:0}")
    private String isCheck;
}

上面定义配置信息字段时,一定要给上默认值,防止其它同事命名空间中没有配置时,启动程序读取不到的问题发生

4.创建接口返回配置信息给前端

并加注解@RefreshScope(注解实现配置实时刷新)

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;

/**
 * 读取nacos参数配置
 */
@RefreshScope  // 注解实现配置实时刷新
@RestController
@RequestMapping("/open/api")
@Api(tags = "接口工具")
public class OpenController extends BaseController {

    @Autowired
    DrugStoreManaProperties drugStoreManaProperties;


    @ApiOperation("药库管理获取参数")
    @GetMapping("/queryDrugStoreManaProperties")
    public AjaxResult queryDrugStoreManaProperties(){
        return AjaxResult.success("操作成功",drugStoreManaProperties);
    }

}

总结

以上为个人经验,希望能给大家一个参考,也希望大家多多支持脚本之家。

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