判断

Connection conn=null;
  Statement stmt=null;
  ResultSet rs=null;
  String sql="";
       PrintWriter out=response.getWriter();
       request.setCharacterEncoding("gb2312");
      
     long stars=Long.parseLong(request.getParameter("starts"));
     long ends=Long.parseLong(request.getParameter("ends"));
     System.out.println("输入的第一个数："+stars);
     System.out.println("输入的第二个数："+ends);
      try 
      { 
      Class.forName( "com.microsoft.sqlserver.jdbc.sqlServerDriver" ); 
      conn = DriverManager.getConnection( "jdbc:sqlserver://localhost:1433;databaseName=MyOffice","sa","sa" ); 
    
      stmt=conn.createStatement(); 
      sql="select * from subgrouptable"; 
      rs=stmt.executeQuery(sql); 
            int k=0;
      while(rs.next()) 
      { 
       
       if(((stars>=Long.parseLong(rs.getString("starts"))&&stars<=Long.parseLong(rs.getString("ends")))
       ||(ends>=Long.parseLong(rs.getString("starts"))&&ends<=Long.parseLong(rs.getString("ends"))))
       &&(stars!=-1&&ends!=-1)
       
       ){
        
        k=k+1;
        break;
       }
       if((stars<=Long.parseLong(rs.getString("starts"))&&ends>=Long.parseLong(rs.getString("ends")))&&
         (stars!=-1&&ends!=-1)){
        
        k=k+1;
        break;
       }
         
       
       //Long.parseLong(rs.getString("starts"));
       //Long.parseLong(rs.getString("ends"));
      } 
      if(k==0){
      System.out.println("输入正确");
      }else{
       System.out.println("输入错误");
      }
//      Iterator<jihe> itr = listall.iterator();
//      while (itr.hasNext()) {
//             System.out.println(itr.next().getStarts());
//      }
     
     
      rs.close(); 
      stmt.close(); 
      conn.close(); 
      } 
      catch(Exception e) 
      { 
      e.printstacktrace(); 
      } 
      } 

 

}