在成功运行应用程序后,我面临一个连接错误。我的代码如下。我是在使用高效的连接处理,还是需要改进它?在运行应用程序时,在哪里可以看到我的活动、已用和空闲连接状态?
@Service
public class printChallan extends JdbcDaoSupport{
@Autowired
DataSource dataSource;
@PostConstruct
private void initialize() {setDataSource(dataSource);}
public boolean printAdmissionForm(HttpServletRequest request)
{
java.sql.Connection conn = null;
try {
conn = getJdbcTemplate().getDataSource().getConnection();
//conn = dataSource.getConnection();
jasperdesign = JRXmlLoader.load(totalPath);
JasperReport jasperReport = JasperCompileManager.compileReport(jasperdesign);
jasperPrint = JasperFillManager.fillReport(jasperReport, param, conn);
} catch (Exception e)
{
if(conn != null) conn.close(); // Does I need to close Connection Manually
e.printStackTrace();
}
return true;
}
public boolean callProcedure(HttpServletRequest request){
CallableStatement cs = null;
try
{
cs = getJdbcTemplate().getDataSource().getConnection() // does this connection need to be closed.
.prepareCall("{? = call FUNC_CHALLAN_PRINT_TYPE(?)}");
cs.registerOutParameter(1, Types.VARCHAR);
cs.setString(2, challanNbr);
cs.execute();
Status = cs.getString(1);
cs.close();
return Status;
} catch (SQLException e) {
logger.debug("Error occured while getting Challan record" + e.getMessage());
}finally
{
}
return true;
}
}
应用程序属性
spring.datasource.url=jdbc:oracle:thin:@172.19.10.37:1521:ORCL
spring.datasource.username=app
spring.datasource.password=app
spring.datasource.platform=ORACLE
1条答案
按热度按时间q9rjltbz1#
如果不关闭连接,则池将满,并且在尝试获取新连接时将超时。
如果您没有关闭连接,只需更改为使用资源进行尝试,它就会自动关闭
相同的解决方案
CallableStatement