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<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="user" value="${user}" />
<property name="password" value="${password}" />
<property name="jdbcUrl" value="${jdbcUrl}" />
<property name="driverClass" value="${driverClass}" />
<property name="maxPoolSize" value="${c3p0.maxPoolSize}"/>//100
<property name="minPoolSize" value="${c3p0.minPoolSize}"/>//10
<property name="initialPoolSize" value="${c3p0.initialPoolSize}"/>//10
<property name="maxIdleTime" value="${c3p0.maxIdleTime}"/> //100
<property name="acquireIncrement" value="${c3p0.acquireIncrement}"/>//5
<!--
<property name="acquireRetryAttempts" value="${c3p0.acquireRetryAttempts}"/> //5
-->
<property name="acquireRetryDelay" value="${c3p0.acquireRetryDelay}"/>//10
<property name="autoCommitOnClose" value="${c3p0.autoCommitOnClose}"/>//true
<property name="checkoutTimeout" value="${c3p0.checkoutTimeout}"/>//100
<property name="idleConnectionTestPeriod" value="${c3p0.idleConnectionTestPeriod}"/>//60
<!--
<property name="numHelperThreads" value="${c3p0.numHelperThreads}"/>//5
-->
</bean>
org.springframework.jdbc.UncategorizedSQLException: Hibernate operation: Cannot open connection; uncategorized SQLException for SQL [???]; SQL state [null]; error code [0]; An attempt by a client to checkout a Connection has timed out.; nested exception is java.sql.SQLException: An attempt by a client to checkout a Connection has timed out.
。希望大家能给以不同意意见,如果有以前遇到并解决的大侠,请教小弟。谢谢!!!!!
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.Properties;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.sql.DataSource;
public class ConnDB
{
private static DataSource ds = null;
static
{
Context context;
try
{
context = new InitialContext();
ds = (DataSource) context.lookup("java:comp/env/jdbc/bbs");//连接池名字
}
catch (NamingException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public static Connection getConnection2()
{
if (ds != null)
{
try
{
return ds.getConnection();
}
catch (SQLException e)
{
e.printStackTrace();
}
}
return null;
}
}