首页 > 代码库 > Java调用存储过程,随着按钮点击增多,调用存储过程也增多,会出现超时问题
Java调用存储过程,随着按钮点击增多,调用存储过程也增多,会出现超时问题
刚开始代码是这样的直接通过jpa连接,刚开始点击调用存储过程的按钮,没啥问题,等点击多了就会没反应:日志报数据库连接超时:
public String execute(Entity entity) {
Session session = (Session) this.getJpa().getManager().getDelegate();
SessionFactoryImpl sessionFactory = (SessionFactoryImpl) session.getSessionFactory();
Connection conn = null;
String result = null;
try {
conn = sessionFactory.getConnectionProvider().getConnection();
CallableStatement call = conn.prepareCall("{call SP_FORMER_BMP_INFO_AUDIT(?,?,?,?,?,?,?,?,?,?,?,?)}");
call.setString(1, entity.getParam1());
call.setString(2, entity.getParam2());
call.setString(3, entity.getParam3());
call.setString(4, entity.getParam4());
call.setString(5, entity.getParam5());
call.setString(6, entity.getParam6());
call.setString(7, entity.getParam7());
call.setString(8, entity.getParam8());
call.setString(9, entity.getParam9());
call.setString(10, entity.getParam10());
call.setString(11, entity.getParam11());
call.registerOutParameter(12, Types.VARCHAR);
call.execute();
result = call.getString(12);
System.out.println("参数:"+entity.getParam1()+";"+entity.getParam2()+";"+entity.getParam3()+";"
+entity.getParam4()+";"+entity.getParam5()+";"+entity.getParam6()+";"
+entity.getParam7()+":"+entity.getParam8()+";"+entity.getParam9()+";"
+entity.getParam10()+";"+entity.getParam11());
System.out.println("老平台出、入金存储过程的执行结果是:"+result);
} catch (SQLException e) {
e.printStackTrace();
}finally{
if (conn != null) {
try {
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
return result;
}
--后来增加判断:若连接为空,则重新通过jdbc连接,暂时未出现连接超时问题
public String execute(Entity entity) {
Session session = (Session) this.getJpa().getManager().getDelegate();
SessionFactoryImpl sessionFactory = (SessionFactoryImpl) session.getSessionFactory();
Connection conn = null;
String result = null;
try {
conn = sessionFactory.getConnectionProvider().getConnection();
if (conn == null || conn.isClosed()) {
try {
Class.forName(driverClass);
conn = DriverManager.getConnection(url, username, password);
} catch (ClassNotFoundException e) {
e.printStackTrace();
}
}
} catch (SQLException e1) {
e1.printStackTrace();
}
try {
// conn = sessionFactory.getConnectionProvider().getConnection();
CallableStatement call = conn.prepareCall("{call SP_FORMER_BMP_INFO_AUDIT(?,?,?,?,?,?,?,?,?,?,?,?)}");
call.setString(1, entity.getParam1());
call.setString(2, entity.getParam2());
call.setString(3, entity.getParam3());
call.setString(4, entity.getParam4());
call.setString(5, entity.getParam5());
call.setString(6, entity.getParam6());
call.setString(7, entity.getParam7());
call.setString(8, entity.getParam8());
call.setString(9, entity.getParam9());
call.setString(10, entity.getParam10());
call.setString(11, entity.getParam11());
call.registerOutParameter(12, Types.VARCHAR);
call.execute();
result = call.getString(12);
System.out.println("老平台出、入金存储过程的执行结果是:"+result);
} catch (SQLException e) {
e.printStackTrace();
}finally{
if (conn != null) {
try {
conn.close();
} catch (SQLException e) {
e.printStackTrace();
}
}
}
return result;
}
Java调用存储过程,随着按钮点击增多,调用存储过程也增多,会出现超时问题