[英]Creating a Spring DataSource for connecting to Google Cloud SQL
I'm trying to find the best way to create a dataSource in Spring for connecting to a Google Cloud SQL instance. 我正在尝试找到在Spring中创建dataSource以连接到Google Cloud SQL实例的最佳方法。
I'm currently using: 我目前正在使用:
<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="com.mysql.jdbc.GoogleDriver" />
<property name="url" value="jdbc:google:mysql://myappid:instanceId/mydb?user=myuser" />
<property name="username" value="myuser" />
<property name="password" value="mypassword" />
</bean>
However, I'm a little concerned about using the DriverManagerDataSource provided by Spring as it's documentation says it creates a new connection for every call. 但是,我有点担心使用Spring提供的DriverManagerDataSource,因为它的文档说它为每个调用创建了一个新连接。
Before migrating over to App Engine I was using a connection pool called BoneCP - however it uses classes that are restricted by App Engine. 在迁移到App Engine之前,我使用的是名为BoneCP的连接池 - 但是它使用受App Engine限制的类。 Is there a connection pool or some other data source class that is recommended to be used with Google Cloud SQL? 是否存在建议与Google Cloud SQL一起使用的连接池或其他数据源类?
Try c3p0 or commons-dbcp . 尝试c3p0或commons-dbcp 。 They both implement javax.sql.Datasource which is whitelisted by app-engine . 它们都实现了javax.sql.Datasource,它被app-engine列入白名单 。
Example on commons-dbcp: commons-dbcp上的示例:
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
<property name="driverClassName" value="com.mysql.jdbc.GoogleDriver" />
<property name="url" value="jdbc:google:mysql://myappid:instanceId/mydb?user=myuser" />
<property name="username" value="myuser" />
<property name="password" value="mypassword" />
<property name="validationQuery" value="SELECT 1"/>
</bean>
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