【发布时间】:2014-10-28 14:01:51
【问题描述】:
public class CpiDaoBase {
protected Connection con = null;
public void test(){
cpiDAOBase.openDbConnection();
ps = new cpiDAOBase().con.prepareStatement(INSERT_CARRIER);
ps.executeQuery();
... blah blah blah
}
public void openDbConnection() throws CpiSystemException
{
try {
if (con == null || con.isClosed()) {
con = CpiDataSource.getNonTxConnection();
}
} catch (SQLException e) {
log.error(e.getMessage(), e);
new CpiSystemException("SQLException caused by con.isClosed(): " + e.getMessage());
}
}
}
public class CpiDataSource {
public static Connection getNonTxConnection() throws CpiSystemException {
try {
if (nonTxDs == null)
{
if(log.isDebugEnabled()){
log.debug("nonTxDs is null");
}
init();
}
return nonTxDs.getConnection();
} catch (NamingException e)
{
log.error("cpiPoolDataSource is not available !" + e);
throw new CpiSystemException("cpiPoolDataSource is not available !");
} catch (SQLException e)
{
log.error("Failed to get connection from datasource !" + e);
throw new CpiSystemException("Failed to get connection from datasource !");
} catch (Exception e)
{
log.error("Exception \n" + e);
throw new CpiSystemException(e.getMessage());
}
}
}
我低于异常:
java.sql.SQLException: 语句已经关闭] [[ACTIVE] ExecuteThread: '8' for queue: 'weblogic.kernel.Default (self-tuning)'] [2014-10-28 05:54:17,918] [错误] [com.uprr.app.cpi.dao.CpiCustomerPipelinePreferencesDao:104] [SQL 异常: java.sql.SQLException: executeQuery, Exception = null] [[ACTIVE] ExecuteThread: '5' for queue: 'weblogic.kernel.Default (self-tuning)'] [2014-10-28 05:54:17,918] [错误] [com.uprr.app.cpi.web.action.PatternSelectionAction:112] [访问 CPI_CUST_PILN_PREF 表时出现 SQLException:executeQuery,Exception = null] [[ACTIVE ] ExecuteThread: '5' for queue: 'weblogic.kernel.Default (self-tuning)']
我的疑问很简单,但我很困惑:
从上面的代码中,我使用的是本地连接对象还是全局?请提出建议。
【问题讨论】:
标签: java weblogic-10.x