我需要配置 Spring Cloud 配置服务器,以便从 JDBC 后端 (PostgreSQL) 而不是 Git 存储库读取 variuos 实例的属性。我按照官方文档进行操作,但不起作用。 我添加到 Spring Cloud Config Server 的 application.properties
spring.profiles.active=jdbc
spring.datasource.url= jdbc:postgresql://localhost:5432/example
spring.datasource.username=user
spring.datasource.password=pass
我在数据库中创建表
CREATE TABLE public."PROPERTIES"
(
"APPLICATION" character varying(500) COLLATE pg_catalog."default",
"PROFILE" character varying(500) COLLATE pg_catalog."default",
"LABEL" character varying(500) COLLATE pg_catalog."default",
"KEY" character varying(500) COLLATE pg_catalog."default",
"VALUE" character varying(500) COLLATE pg_catalog."default"
)
并且,对于 Eureka 服务器,我插入
INSERT INTO public."PROPERTIES"
("APPLICATION", "PROFILE", "LABEL", "KEY", "VALUE")
VALUES('discovery-service', '', '', 'spring.application.name', 'discovery-service');
INSERT INTO public."PROPERTIES"
("APPLICATION", "PROFILE", "LABEL", "KEY", "VALUE")
VALUES('discovery-service', '', '', 'server.port', '8761');
如果我在 Git 存储库中使用此参数,Eureka 服务器工作正常,但使用 JDBC 后端则不起作用。有人可以帮助我吗?
最佳答案
PSQLException 表示“属性”不存在是因为 PostgreSQL 区分大小写。使用 PGAdmin 创建表/列时,如果名称全部大写,该工具会自动添加引号,从而区分大小写。
您可以尝试以下操作:
CREATE TABLE public.properties
(
application character varying(50) COLLATE pg_catalog."default",
profile character varying(50) COLLATE pg_catalog."default",
label character varying(50) COLLATE pg_catalog."default",
key character varying(50) COLLATE pg_catalog."default",
value character varying(500) COLLATE pg_catalog."default"
)
INSERT INTO properties
("application", "profile", "label", "key", "value")
VALUES('myconfig', 'default', 'master', 'my.message', 'hello');
application.properties 包含:
server.port=8888
spring.profiles.active=jdbc
spring.datasource.driver-class-name=org.postgresql.Driver
spring.datasource.url= jdbc:postgresql://localhost:5432/configdb
spring.datasource.username=xxxxxx
spring.datasource.password=xxxxxx
您现在可以使用 http://localhost:8888/myconfig/default 进行访问
关于spring-boot - Spring Cloud 配置 JDBC 后端,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/47534255/