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                微服務模塊配置獨立數據源 3.2 === [小視頻教程](https://www.bilibili.com/video/BV1sZ4y1G7LL?p=31) >[info] 方案一:是微服務模塊配置獨立數據庫連接,本文以jeecg-demo為例說明如何讓jeecg-demo獨立鏈接數據庫 > 方案二:使用動態數據源詳見 [動態數據源用法](http://doc.jeecg.com/2043947),本文不做詳細講解。 ## 1. 修改nacos中`jeecg-dev.yml`配置 >[warning] 加入如下配置,目的就是讓nacos中的配置不覆蓋本地配置 ``` spring: cloud: config: allow-override: true override-none: true override-system-properties: false ``` ### 參數解釋 * allow-override:決定override-system-properties是否啟用,默認為true,false=禁用用戶的配置 * override-system-properties:用來標識外部配置是否能夠覆蓋系統屬性,默認為true; * override-none:當allow-override和override-none同時為true,遠程配置的優先級降低,不能覆蓋其他配置; ## 2. 修改jeecg-demo模塊配置文件 >[warning] 加入數據庫連接配置如下圖 > ![](https://img.kancloud.cn/66/ec/66ecad554e79f055c1ce4eea60da6c37_1303x802.png) jeecg-demo模塊application.yml文件示例 ``` server: port: 7002 spring: application: name: jeecg-demo datasource: druid: stat-view-servlet: enabled: true url-pattern: /druid/* # 監控頁面訪問路徑配置 loginUsername: admin loginPassword: 123456 allow: web-stat-filter: # web應用 監控配置 enabled: true profile-enable: true # 能夠監控單個url調用的sql列表 url-pattern: /* # 監控路徑控制 eg: /admin/* exclusions: '*.js,*.gif,*.jpg,*.png,*.css,*.ico,/vipDruid/*' # 不攔截的路徑 dynamic: druid: # 全局druid參數,絕大部分值和默認保持一致。(現已支持的參數如下,不清楚含義不要亂設置) # 連接池的配置信息 # 初始化大小,最小,最大 initial-size: 5 min-idle: 5 maxActive: 20 # 配置獲取連接等待超時的時間 maxWait: 60000 # 配置間隔多久才進行一次檢測,檢測需要關閉的空閑連接,單位是毫秒 timeBetweenEvictionRunsMillis: 60000 # 配置一個連接在池中最小生存的時間,單位是毫秒 minEvictableIdleTimeMillis: 300000 validationQuery: SELECT 1 FROM DUAL testWhileIdle: true testOnBorrow: false testOnReturn: false # 打開PSCache,并且指定每個連接上PSCache的大小 poolPreparedStatements: true maxPoolPreparedStatementPerConnectionSize: 20 # 配置監控統計攔截的filters,去掉后監控界面sql無法統計,'wall'用于防火墻 filters: stat,wall,slf4j # 通過connectProperties屬性來打開mergeSql功能;慢SQL記錄 connectionProperties: druid.stat.mergeSql\=true;druid.stat.slowSqlMillis\=5000 datasource: master: url: jdbc:mysql://127.0.0.1:3300/jeecg-boot2?characterEncoding=UTF-8&useUnicode=true&useSSL=false&tinyInt1isBit=false&allowPublicKeyRetrieval=true&serverTimezone=Asia/Shanghai username: root password: root driver-class-name: com.mysql.cj.jdbc.Driver # 多數據源配置 ```
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