java - 如何获取标签值的返回值

Question

嗨，我已经编写了这段代码，我在这段代码中尝试的是将方法的返回值获取到 java swing 标签

这是我的代码:

public static int search(java.util.Date date)
    {

         Connection conn = null;
         ResultSet rs = null;
         Statement st = null;
           int b=0;
          try
          {

          conn=DBMgr.openConnection();      
          DateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
          String dateStr=formatter.format(date);  
          System.out.println("date"+dateStr);
          String sqlQuery = "select sum(time_spend) as Time_Billed_Per_Day,datetime from time_entry  where datetime like '"+dateStr+"%' ";


              st = conn.createStatement();
               rs = st.executeQuery(sqlQuery); 

               while(rs.next())
              {

                      b = rs.getInt(1);
                     System.out.println("BILL of the date u specified is:"+b);         
               }
        }
        catch(SQLException ex) 
        {
             System.out.println(ex.toString());  
        }
        finally
        {
            try
            {

                if(rs!=null)
                    rs.close();
                if(conn!=null)
                    DBMgr.closeConnection(conn);
            }
           catch(Exception ex)
           {
           }

        }
      return b;
      }

这是 Swing 代码:

JLabel lblTimeBilledDayText = new JLabel( "00:45:20" , JLabel.RIGHT);
pnlOuter.add(lblTimeBilledDayText);

我想获取方法的返回值来代替“00:45:20”

如何做到这一点？

Answer 1

试试这个

JLabel lblTimeBilledDayText = new JLabel(String.valueOf(search(date)) , JLabel.RIGHT);
pnlOuter.add(lblTimeBilledDayText);