如何将多个MySql连接查询转换为Hibernate查询？

我在MySQL查询其中有两个以上的加入它下面提及，如何将多个MySql连接查询转换为Hibernate查询？

StringBuilder str_Resource=new StringBuilder(); 
str_Resource.append("SELECT * FROM BUS_TRANSPORT.TRIP_CALENDAR JOIN BUS_TRANSPORT.ROUTE_MASTER ON BUS_TRANSPORT.TRIP_CALENDAR.ROUTE_CODE=BUS_TRANSPORT.ROUTE_MASTER.ROUTE_CODE "); 
str_Resource.append("JOIN BUS_TRANSPORT.TRIP_RESOURCE_ALLOCATOR ON BUS_TRANSPORT.TRIP_CALENDAR.TRIP_ID=BUS_TRANSPORT.TRIP_RESOURCE_ALLOCATOR.TRIP_ID "); 
str_Resource.append("JOIN BUS_TRANSPORT.DRIVER_CALENDAR ON BUS_TRANSPORT.DRIVER_CALENDAR.EMP_ID=BUS_TRANSPORT.TRIP_RESOURCE_ALLOCATOR.EMP_ID AND "); 
str_Resource.append("BUS_TRANSPORT.DRIVER_CALENDAR.TRIP_ID=BUS_TRANSPORT.TRIP_RESOURCE_ALLOCATOR.TRIP_ID "); 
str_Resource.append("JOIN BUS_TRANSPORT.VEHICLE_CALENDAR ON BUS_TRANSPORT.VEHICLE_CALENDAR.VEHICLE_ID =BUS_TRANSPORT.TRIP_RESOURCE_ALLOCATOR.VEHICLE_ID AND "); 
str_Resource.append("BUS_TRANSPORT.VEHICLE_CALENDAR.TRIP_ID =BUS_TRANSPORT.TRIP_RESOURCE_ALLOCATOR.TRIP_ID "); 
str_Resource.append("JOIN BUS_TRANSPORT.EMP_MASTER ON BUS_TRANSPORT.EMP_MASTER.EMP_ID=BUS_TRANSPORT.DRIVER_CALENDAR.EMP_ID "); 
str_Resource.append("JOIN BUS_TRANSPORT.VEHICLE_MASTER ON BUS_TRANSPORT.VEHICLE_MASTER.VEHICLE_ID=BUS_TRANSPORT.VEHICLE_CALENDAR.VEHICLE_ID "); 
str_Resource.append("where BUS_TRANSPORT.TRIP_CALENDAR.trip_from_date_time >= NOW() and BUS_TRANSPORT.TRIP_CALENDAR.trip_from_date_time <= (DATE_ADD(NOW(), INTERVAL 6 DAY)) "); 

ResultSet resourceAllRS=stmt.executeQuery(str_Resource.toString()); 

while (resourceAllRS.next()){ 
    JSONObject obj=new JSONObject(); 

    obj.put("rCode", resourceAllRS.getString("ROUTE_CODE")); 
    obj.put("rName", resourceAllRS.getString("ROUTE_NAME")); 
    obj.put("source", resourceAllRS.getString("source")); 
    obj.put("destination", resourceAllRS.getString("destination")); 
    obj.put("tripStartDate", CommonFunctions.dateConvert(resourceAllRS.getString("TRIP_FROM_DATE_TIME").toString())); 
    obj.put("tripstartTime", CommonFunctions.timeConvert(resourceAllRS.getString("TRIP_FROM_DATE_TIME").toString())); 
    obj.put("tripEndDate", CommonFunctions.dateConvert(resourceAllRS.getString("TRIP_TO_DATE_TIME").toString())); 
    obj.put("tripEndTime", CommonFunctions.timeConvert(resourceAllRS.getString("TRIP_TO_DATE_TIME").toString())); 
    obj.put("driverId", resourceAllRS.getString("EMP_ID")); 
    obj.put("driverName", resourceAllRS.getString("EMP_NAME")); 
    obj.put("vehId", resourceAllRS.getString("VEHICLE_ID")); 
    obj.put("vehicleType", resourceAllRS.getString("BUS_TYPE")); 
    obj.put("tripId", resourceAllRS.getString("TRIP_ID")); 

    array.put(obj); 
    System.out.println("obj is "+obj); 
}

我已经做了简单的查询转换为Hibernate查询。我有所有pojo类绑定到表。请指导我如何将多个连接查询转换为一个hibernate查询。

来源

2014-01-06 Sandy

-1

而不是在hibernate中进行连接查询，你可以通过编程来处理这个问题，因为你有表的pojo类。

来源

2014-01-07 12:18:03 Rathi

如何将多个MySql连接查询转换为Hibernate查询？

回答

相关问题