Execute SQL Scripts in Grails Bootstrap or Integration Tests

I recently had to execute some SQL scripts when a Grails applications starts up to insert test data into the database.
Executing sql scripts is easy. Just open the SQL File and read the contents of the Script to a String variable.

String sqlFilePath = 'path/to/your/script.sql'
String sqlString = new File(sqlFilePath).text

Create a SQL connection and use it’s execute(String sql) method to execute your script. To configure the SQL connection, you can use the settings from your DataSource.groovy .

def sql = Sql.newInstance(ConfigurationHolder.config.dataSource.url, 
                  ConfigurationHolder.config.dataSource.username, 
                  ConfigurationHolder.config.dataSource.password,
                  ConfigurationHolder.config.dataSource.driverClassName)
sql.execute(sqlString)

Here is the full sourcecode:

import groovy.sql.Sql
import org.codehaus.groovy.grails.commons.ConfigurationHolder
 
String sqlFilePath = 'path/to/your/script.sql'
String sqlString = new File(sqlFilePath).text
def sql = Sql.newInstance(ConfigurationHolder.config.dataSource.url, 
                   ConfigurationHolder.config.dataSource.username, 
                   ConfigurationHolder.config.dataSource.password, 
                   ConfigurationHolder.config.dataSource.driverClassName)
sql.execute(sqlString)

This can be very useful when you have to insert a lot of test data into the database.


groovy.sql.Sql中的execute()只能执行一行script代码，且不能执行空行，修正后的代码如下：

String sqlFilePath = 'path/to/script.sql'
String sqlString = new File(sqlFilePath).text
def sql = Sql.newInstance(ConfigurationHolder.config.dataSource.url,
                ConfigurationHolder.config.dataSource.username,
                ConfigurationHolder.config.dataSource.password,
                ConfigurationHolder.config.dataSource.driverClassName)
sqlString.eachLine {line -> if(line.trim())sql.execute(line) }

参考文章：
http://blog.oio.de/2010/05/31/execute-sql-scripts-in-grails-bootstrap-or-integration-tests/
http://www.intelligrape.com/blog/2010/09/14/grails-execute-sql-script-in-bootstrap/
http://grails.1312388.n4.nabble.com/Running-a-mysql-dump-from-grails-BootStrap-fails-unexpectedly-td3690734.html