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1、只支持postgres 数据库

2、配置文件支持postgres   路径: nacos-1.4.1\console\src\main\resources\application.properties
spring.datasource.platform=postgres
修改点：
    com.alibaba.nacos.config.server.utils.PropertyUtil.loadSetting
    com.alibaba.nacos.core.listener.StartingApplicationListener.judgeStorageMode
    com.alibaba.nacos.config.server.service.datasource.ExternalDataSourceProperties.JDBC_DRIVER_NAME

3、maven pom.xml 增加postgres驱动
\nacos-1.4.1\pom.xml 增加声明依赖
\nacos-1.4.1\config\pom.xml 增加依赖

4、postgres 不支持 limit 1,10
ExternalStoragePaginationHelperImpl.fetchPage
com.alibaba.nacos.config.server.service.repository.extrnal.ExternalStoragePersistServiceImpl.findAllConfigInfoFragment


5、
org.springframework.jdbc.core.PreparedStatementCreator.createPreparedStatement


6、新增postgres 建表语句

7、启动应用
com.alibaba.nacos.Nacos 启动类
vm 增加参数: -Dnacos.standalone=true ; 否则是集群模式启动

8、访问路径
http://127.0.0.1:8848/nacos/
用户名和密码都是nacos

9、 like '%' 'test11122334566' '%'
com.alibaba.nacos.config.server.auth.ExternalUserPersistServiceImpl.findUserLikeUsername
com.alibaba.nacos.config.server.auth.ExternalRolePersistServiceImpl.findRolesLikeRoleName

10、The getKey method should only be used when a single key is returned
com.alibaba.nacos.config.server.service.repository.extrnal.ExternalStoragePersistServiceImpl.addConfigInfoAtomic