如何在grails 3.1.8中从外部文件加载数据源配置？ [英] How to load datasource configuration from external file in grails 3.1.8?
问题描述
我想从外部文件加载数据源配置，如用户名，密码，数据库。有没有办法在grails 3+版本中完成它。
这是我在application.groovy中的数据源配置： - $ /
hibernate {
cache {
queries = false
use_second_level_cache = true
use_query_cache = false
region.factory_class = 'org.hibernate.cache.ehcache.EhCacheRegionFactory'
}
}
dataSource {
pooled = true
jmxExport = true
方言='org.hibernate.dialect.PostgreSQLDialect'
driverClassName ='org.postgresql.Driver'
username ='postgres'
password ='postgres'
properties = {
jmxEnabled = true
initialSize = 5
maxActive = 50
minIdle = 5
maxIdle = 25
maxWait = 10000
maxAge = 10 * 60000
timeBetweenEvictionRunsMillis = 5000
minEvictableIdleTimeMillis = 60000
validationQuery =SELECT 1
validationQueryTimeout = 3
validationInterval = 15000
testOnBorrow = true
testWhileIdle = true
testOnReturn = false
ignoreExceptionOnPreLoad = true
jdbcInterceptors =ConnectionState; StatementCache（max = 200）
defaultTransactionIsolation = java.sql.Connection.TRANSACTION_READ_COMMITTED //安全默认值
abandonWhenPercentageFull = 100 //设置仅在池满时激活
removeAbandonedTimeout = 120
removeAbandoned = true
logAbandoned = false //导致堆栈跟踪记录开销，仅用于调试
}
}
environments {
development {
dataSource {
dbCreate ='update'
url =jdbc：postgresql：// localhost：5432 / testdb
logSql = true
}
}
测试{
dataSource {
dbCreate ='update'
url =jdbc：postgresql：// localhost：5432 / testdb
logSql = true
}
}
生产{
dataSource {
dbCreate ='update'
url =jdbc：postgresql：// localhost：5432 / testdb
logSql = true
}
}
}
这对我有用，你可以试试。
这个解决方案适用于grails 3.0+
首先需要添加以下依赖项：
编译'org.grails.plugins：external-config：1.1.2'
然后需要创建外部配置的groovy文件，例如：
db-config.groovy
然后需要将该配置文件放入应用程序目录或tomcat库的外部。例如：
D：\ apache-tomcat-8.0.47\\lib
然后需要从 application.groovy 中读取配置文件。
在 application.groovy 中，需要为每个环境放置以下代码行：
grails.config.locations = ['file：/// $ {catalina.home} /lib/db-config.groovy']
或
grails.config.locations = ['file：/// D：/ apache -tomcat-8.0.47 / lib / db-config.groovy']
您可以使用 $ {catalina.home} 如果您在系统中将环境变量设置为 CATALINA_HOME 。除了你必须使用我展示的直接路径。
所以你的 application.groovy 如下：
>环境{
>开发{
> grails.config.locations = ['file：/// $ {catalina.home} /lib/db-config.groovy']
> }
>生产{
> grails.config.locations = ['file：/// $ {catalina.home} /lib/db-config.groovy']
> ]
> }
> }
和您的 db-config.groovy 文件将包含以下行：
> dataSource {
>用户名=< DB_USER_NAME>
>密码=< DB_PASSWORD>
> dbCreate ='update'
> url =< DB_URL>
> logSql = true
> }
您可以为每个环境使用不同的db-config.groovy文件。
I am writing a grails 3.1.8 application. My datasource written in application.groovy file.
I want to load datasource configuration like username,password,DB from an external file. Is there any way to do it in grails 3+ versions.
Here is my datasource configuration in application.groovy:-
hibernate {
cache {
queries = false
use_second_level_cache = true
use_query_cache = false
region.factory_class = 'org.hibernate.cache.ehcache.EhCacheRegionFactory'
}
}
dataSource {
pooled = true
jmxExport = true
dialect = 'org.hibernate.dialect.PostgreSQLDialect'
driverClassName = 'org.postgresql.Driver'
username = 'postgres'
password = 'postgres'
properties = {
jmxEnabled = true
initialSize = 5
maxActive = 50
minIdle = 5
maxIdle = 25
maxWait = 10000
maxAge = 10 * 60000
timeBetweenEvictionRunsMillis = 5000
minEvictableIdleTimeMillis = 60000
validationQuery = "SELECT 1"
validationQueryTimeout = 3
validationInterval = 15000
testOnBorrow = true
testWhileIdle = true
testOnReturn = false
ignoreExceptionOnPreLoad = true
jdbcInterceptors = "ConnectionState;StatementCache(max=200)"
defaultTransactionIsolation = java.sql.Connection.TRANSACTION_READ_COMMITTED // safe default
abandonWhenPercentageFull = 100 // settings are active only when pool is full
removeAbandonedTimeout = 120
removeAbandoned = true
logAbandoned = false // causes stacktrace recording overhead, use only for debugging
}
}
environments {
development {
dataSource {
dbCreate = 'update'
url = "jdbc:postgresql://localhost:5432/testdb"
logSql = true
}
}
test {
dataSource {
dbCreate = 'update'
url = "jdbc:postgresql://localhost:5432/testdb"
logSql = true
}
}
production {
dataSource {
dbCreate = 'update'
url = "jdbc:postgresql://localhost:5432/testdb"
logSql = true
}
}
}
Here is the solution that worked for me, you can try.
This solution will work for grails 3.0+
First of all need to add following dependency:
compile 'org.grails.plugins:external-config:1.1.2'
then need to create external configuration groovy file for example:
db-config.groovy
then need to place that config file into outside of the application directory or tomcat library. for example:
D:\apache-tomcat-8.0.47\lib
Then need to read config file from the application.groovy . In application.groovy need to place following line of code for each environment:
grails.config.locations = ['file:///${catalina.home}/lib/db-config.groovy']
or
grails.config.locations = ['file:///D:/apache-tomcat-8.0.47/lib/db-config.groovy']
You can use ${catalina.home} if you set the environment variable is CATALINA_HOME in your system. Other than you have to use direct path that I showed.
So your application.groovy will be following:
> environments {
> development {
> grails.config.locations = ['file:///${catalina.home}/lib/db-config.groovy']
> }
> production {
> grails.config.locations = ['file:///${catalina.home}/lib/db-config.groovy']
> ]
> }
> }
and your db-config.groovy file will contain following lines:
> dataSource {
> username = <DB_USER_NAME>
> password = <DB_PASSWORD>
> dbCreate = 'update'
> url = <DB_URL>
> logSql = true
> }
You can use different db-config.groovy file for each environment.
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