问题
How to set database in Grails 3? Manual looks obsolete here: http://grails.github.io/grails-doc/3.0.x/guide/single.html#dataSource
since it gives an example of setting with grove code like follows:
dataSource {
pooled = true
dbCreate = "update"
url = "jdbc:mysql://localhost:3306/my_database"
driverClassName = "com.mysql.jdbc.Driver"
dialect = org.hibernate.dialect.MySQL5InnoDBDialect
username = "username"
password = "password"
...
while I have application.yml with
dataSource:
pooled: true
jmxExport: true
driverClassName: org.h2.Driver
username: sa
password:
What method is up to date?
回答1:
Here's a current postgres example with multiple datasources. I found that the redundancy was necessary because there were some discrepancies in the levels that grails, spring and hibernate were expecting to see config information. this satisfied all of them. also include a runtime dependency for your jdbc driver. for postgres, it was
dependencies {
// all other dependencies
runtime "org.postgresql:postgresql:9.4.1208"
}
[Start of application.yml file. yes, the '---' lines need to be there. they keep the configslurper from getting confused.]
---
hibernate:
cache:
queries: true
use_second_level_cache: true
use_query_cache: true
region.factory_class: 'org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory'
dialect: org.hibernate.dialect.H2Dialect
dataSources:
hibernate:
cache:
queries: true
use_second_level_cache: true
use_query_cache: true
region.factory_class: 'org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory'
dialect: org.hibernate.dialect.H2Dialect
dataSource:
pooled: true
jmxExport: true
driverClassName: org.postgresql.Driver
driver_class: org.postgresql.Driver
username: user
password: pw
dialect: org.hibernate.dialect.PostgreSQLDialect
hibernate:
cache:
queries: true
use_second_level_cache: true
use_query_cache: true
region.factory_class: 'org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory'
dialect: org.hibernate.dialect.PostgreSQLDialect
connection.driver_class: org.postgresql.Driver
connection.url: jdbc:postgresql://ec2-1-2-3-4.compute-1.amazonaws.com:5432/dbone
connection.username: user
connection.password: pw
connection.pool_size: 15
connection.dialect: org.hibernate.dialect.PostgreSQLDialect
driver_class: org.postgresql.Driver
url: jdbc:postgresql://ec2-1-2-3-4.compute-1.amazonaws.com:5432/dbone
username: user
password: pw
pool_size: 15
driverClassName: org.postgresql.Driver
dataSource_two:
pooled: true
jmxExport: true
driverClassName: org.postgresql.Driver
driver_class: org.postgresql.Driver
username: usertwo
password: pw
dialect: org.hibernate.dialect.PostgreSQLDialect
hibernate:
cache:
queries: true
use_second_level_cache: true
use_query_cache: true
region.factory_class: 'org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory'
dialect: org.hibernate.dialect.PostgreSQLDialect
connection.driver_class: org.postgresql.Driver
connection.url: jdbc:postgresql://ec2-1-2-3-4.compute-1.amazonaws.com:5432/dbtwo
connection.username: usertwo
connection.password: pw
connection.pool_size: 15
connection.dialect: org.hibernate.dialect.PostgreSQLDialect
driver_class: org.postgresql.Driver
url: jdbc:postgresql://ec2-1-2-3-4.compute-1.amazonaws.com:5432/dbtwo
username: usertwo
password: pw
pool_size: 15
driverClassName: org.postgresql.Driver
dataSource_three:
pooled: true
jmxExport: true
driverClassName: org.postgresql.Driver
driver_class: org.postgresql.Driver
username: userthree
password: pw
dialect: org.hibernate.dialect.PostgreSQLDialect
hibernate:
cache:
queries: true
use_second_level_cache: true
use_query_cache: true
region.factory_class: 'org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory'
dialect: org.hibernate.dialect.PostgreSQLDialect
connection.driver_class: org.postgresql.Driver
connection.url: jdbc:postgresql://ec2-1-2-3-4.compute-1.amazonaws.com:5432/dbthree
connection.username: userthree
connection.password: pw
connection.pool_size: 15
connection.dialect: org.hibernate.dialect.PostgreSQLDialect
driver_class: org.postgresql.Driver
url: jdbc:postgresql://ec2-1-2-3-4.compute-1.amazonaws.com:5432/dbthree
username: userthree
password: pw
pool_size: 15
driverClassName: org.postgresql.Driver
environments:
local:
hibernate:
cache:
queries: true
use_second_level_cache: true
use_query_cache: true
region.factory_class: 'org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory'
dialect: org.hibernate.dialect.H2Dialect
dataSources:
hibernate:
cache:
queries: true
use_second_level_cache: true
use_query_cache: true
region.factory_class: 'org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory'
dialect: org.hibernate.dialect.H2Dialect
dataSource:
dbCreate: create
url: jdbc:postgresql://127.0.0.1:5432/dbone
driver_class: org.postgresql.Driver
driverClassName: org.postgresql.Driver
username: userone
password: pw
pool_size: 15
dialect: org.hibernate.dialect.PostgreSQLDialect
logSql: true
hibernate:
cache:
queries: true
use_second_level_cache: true
use_query_cache: true
region.factory_class: 'org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory'
dialect: org.hibernate.dialect.PostgreSQLDialect
connection.driver_class: org.postgresql.Driver
connection.url: jdbc:postgresql://127.0.0.1:5432/dbone
connection.username: userone
connection.password: pw
connection.pool_size: 15
connection.dialect: org.hibernate.dialect.PostgreSQLDialect
driver_class: org.postgresql.Driver
url: jdbc:postgresql://127.0.0.1:5432/dbone
username: userone
password: pw
pool_size: 15
driverClassName: org.postgresql.Driver
dataSource_two:
dbCreate: create
url: jdbc:postgresql://127.0.0.1:5432/dbtwo
driver_class: org.postgresql.Driver
driverClassName: org.postgresql.Driver
username: usertwo
password: pw
pool_size: 15
dialect: org.hibernate.dialect.PostgreSQLDialect
logSql: true
hibernate:
cache:
queries: true
use_second_level_cache: true
use_query_cache: true
region.factory_class: 'org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory'
dialect: org.hibernate.dialect.PostgreSQLDialect
connection.driver_class: org.postgresql.Driver
connection.url: jdbc:postgresql://127.0.0.1:5432/dbtwo
connection.username: usertwo
connection.password: pw
connection.pool_size: 15
connection.dialect: org.hibernate.dialect.PostgreSQLDialect
driver_class: org.postgresql.Driver
url: jdbc:postgresql://127.0.0.1:5432/dbtwo
username: usertwo
password: pw
pool_size: 15
driverClassName: org.postgresql.Driver
dataSource_three:
dbCreate: create
url: jdbc:postgresql://127.0.0.1:5432/dbthree
driver_class: org.postgresql.Driver
driverClassName: org.postgresql.Driver
username: userthree
password: pw
pool_size: 15
dialect: org.hibernate.dialect.PostgreSQLDialect
logSql: true
hibernate:
cache:
queries: true
use_second_level_cache: true
use_query_cache: true
region.factory_class: 'org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory'
dialect: org.hibernate.dialect.PostgreSQLDialect
connection.driver_class: org.postgresql.Driver
connection.url: jdbc:postgresql://127.0.0.1:5432/dbthree
connection.username: userthree
connection.password: pw
connection.pool_size: 15
connection.dialect: org.hibernate.dialect.PostgreSQLDialect
driver_class: org.postgresql.Driver
url: jdbc:postgresql://127.0.0.1:5432/dbthree
username: userthree
password: pw
pool_size: 15
driverClassName: org.postgresql.Driver
development:
hibernate:
cache:
queries: true
use_second_level_cache: true
use_query_cache: true
region.factory_class: 'org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory'
dialect: org.hibernate.dialect.H2Dialect
dataSources:
hibernate:
cache:
queries: true
use_second_level_cache: true
use_query_cache: true
region.factory_class: 'org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory'
dialect: org.hibernate.dialect.H2Dialect
dataSource:
dbCreate: create-drop
url: jdbc:postgresql://ec2-1-2-3-4.compute-1.amazonaws.com:5432/dbone
driver_class: org.postgresql.Driver
driverClassName: org.postgresql.Driver
username: userone
password: pw
pool_size: 15
dialect: org.hibernate.dialect.PostgreSQLDialect
hibernate:
cache:
queries: true
use_second_level_cache: true
use_query_cache: true
region.factory_class: 'org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory'
dialect: org.hibernate.dialect.PostgreSQLDialect
connection.driver_class: org.postgresql.Driver
connection.url: jdbc:postgresql://ec2-1-2-3-4.compute-1.amazonaws.com:5432/dbone
connection.username: userone
connection.password: pw
connection.pool_size: 15
connection.dialect: org.hibernate.dialect.PostgreSQLDialect
driver_class: org.postgresql.Driver
url: jdbc:postgresql://ec2-1-2-3-4.compute-1.amazonaws.com:5432/dbone
username: userone
password: pw
pool_size: 15
driverClassName: org.postgresql.Driver
dataSource_two:
dbCreate: create-drop
url: jdbc:postgresql://ec2-1-2-3-4.compute-1.amazonaws.com:5432/dbtwo
driver_class: org.postgresql.Driver
driverClassName: org.postgresql.Driver
username: usertwo
password: pw
pool_size: 15
dialect: org.hibernate.dialect.PostgreSQLDialect
hibernate:
cache:
queries: true
use_second_level_cache: true
use_query_cache: true
region.factory_class: 'org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory'
dialect: org.hibernate.dialect.PostgreSQLDialect
connection.driver_class: org.postgresql.Driver
connection.url: jdbc:postgresql://ec2-1-2-3-4.compute-1.amazonaws.com:5432/dbtwo
connection.username: usertwo
connection.password: pw
connection.pool_size: 15
connection.dialect: org.hibernate.dialect.PostgreSQLDialect
driver_class: org.postgresql.Driver
url: jdbc:postgresql://ec2-1-2-3-4.compute-1.amazonaws.com:5432/dbtwo
username: usertwo
password: pw
pool_size: 15
driverClassName: org.postgresql.Driver
dataSource_three:
dbCreate: create-drop
url: jdbc:postgresql://ec2-1-2-3-4.compute-1.amazonaws.com:5432/dbthree
driver_class: org.postgresql.Driver
driverClassName: org.postgresql.Driver
username: userthree
password: pw
pool_size: 15
dialect: org.hibernate.dialect.PostgreSQLDialect
hibernate:
cache:
queries: true
use_second_level_cache: true
use_query_cache: true
region.factory_class: 'org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory'
dialect: org.hibernate.dialect.PostgreSQLDialect
connection.driver_class: org.postgresql.Driver
connection.url: jdbc:postgresql://ec2-1-2-3-4.compute-1.amazonaws.com:5432/dbthree
connection.username: userthree
connection.password: pw
connection.pool_size: 15
connection.dialect: org.hibernate.dialect.PostgreSQLDialect
driver_class: org.postgresql.Driver
url: jdbc:postgresql://ec2-1-2-3-4.compute-1.amazonaws.com:5432/dbthree
username: userthree
password: pw
pool_size: 15
driverClassName: org.postgresql.Driver
---
---
[ this is not the end of the application.yml, just the end of the datasource section.]
回答2:
As of grails 3.2.2 with GORM 6, the grails documentation is current and correct and this "extra" config shown in the first answer date Apr 7 is no longer necessary. An example dataSource config is:
---
---
dataSources:
hibernate:
cache:
queries: true
use_second_level_cache: true
use_query_cache: true
region.factory_class: 'org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory'
dataSource:
pooled: true
# pool_size: 15
jmxExport: true
driverClassName: org.postgresql.Driver
dataSource_two:
pooled: true
# pool_size: 15
jmxExport: true
driverClassName: org.postgresql.Driver
#############################################################
# Spring Actuator Endpoints are Disabled by Default
#############################################################
---
---
endpoints:
enabled: false
jmx:
enabled: true
---
---
grails:
codegen:
defaultPackage: com.healthreveal
controllers:
defaultScope: singleton
converters:
encoding: UTF-8
mime:
disable:
accept:
header:
userAgents:
- Gecko
- WebKit
- Presto
- Trident
types:
all: '*/*'
atom: application/atom+xml
css: text/css
csv: text/csv
form: application/x-www-form-urlencoded
html:
- text/html
- application/xhtml+xml
js: text/javascript
json:
- application/json
- text/json
multipartForm: multipart/form-data
rss: application/rss+xml
text: text/plain
hal:
- application/hal+json
- application/hal+xml
xml:
- text/xml
- application/xml
profile: rest-api (or web)
spring:
transactionManagement:
proxies: false
urlmapping:
cache:
maxsize: 1000
---
---
# you would think you could put this in the section above, but for some reason you can't
grails.logging.jul.usebridge: true
---
---
hibernate:
cache:
queries: false
use_second_level_cache: true
use_query_cache: false
region.factory_class: org.hibernate.cache.ehcache.SingletonEhCacheRegionFactory
---
---
info:
app:
name: '@info.app.name@'
version: '@info.app.version@'
grailsVersion: '@info.app.grailsVersion@'
---
---
spring:
groovy:
template:
check-template-location: false
#################################################################
# This second section is a set of environment-specific over-rides
# to the common parameters. There is no need to repeat a
# common parameter unless you want to change the setting (or add
# a new setting) within the context of an environment.
#################################################################
---
---
environments:
development:
dataSources:
dataSource:
dbCreate: update
url: jdbc:postgresql://localhost:5432/dbOne
username: someuser
password: somepassword
dataSource_xyz:
dbCreate: update
url: jdbc:postgresql://localhost:5432/dbXYZ
username: someuser
password: somepassword
grails:
serverURL: "http://localhost:8080"
plugin:
forceSSL:
enabled: false
server:
port: 8080
ssl:
enabled: false
来源：https://stackoverflow.com/questions/34116328/what-is-up-to-date-method-to-set-database-in-grails-3