Exemplo n.º 1
0
 public int updateBook(Book bo) {
   int x = 0;
   try {
     con = JdbcUtil.getMysqlConnection();
     System.out.println("update 2");
     ps =
         con.prepareStatement(
             "update jlcbooks set bname=?,author=?,pub=?,cost=?,edition=?,isbn=? where bid=?");
     System.out.println("update 3");
     System.out.println(bo.getBid());
     ps.setString(7, bo.getBid());
     ps.setString(1, bo.getBname());
     ps.setString(2, bo.getAuthor());
     ps.setString(3, bo.getPub());
     ps.setString(4, bo.getCost());
     ps.setString(5, bo.getEdi());
     ps.setString(6, bo.getIsbn());
     x = ps.executeUpdate();
   } catch (Exception e) {
     e.printStackTrace();
   } finally {
     JdbcUtil.cleanup(ps, con);
   }
   return x;
 }
Exemplo n.º 2
0
  public int deleteBook(String bid) {
    int x = 0;
    try {
      con = JdbcUtil.getMysqlConnection();
      ps = con.prepareStatement("delete from jlcbooks where bid=?");
      ps.setString(1, bid);
      x = ps.executeUpdate();

    } catch (Exception e) {
      e.printStackTrace();
    } finally {
      JdbcUtil.cleanup(ps, con);
    }
    return x;
  }
Exemplo n.º 3
0
 public int addBook(Book bo) {
   int x = 0;
   try {
     con = JdbcUtil.getMysqlConnection();
     ps = con.prepareStatement("insert into jlcbooks values(?,?,?,?,?,?,?)");
     ps.setString(1, bo.getBid());
     ps.setString(2, bo.getBname());
     ps.setString(3, bo.getAuthor());
     ps.setString(4, bo.getPub());
     ps.setString(5, bo.getCost());
     ps.setString(6, bo.getEdi());
     ps.setString(7, bo.getIsbn());
     x = ps.executeUpdate();
   } catch (Exception e) {
     e.printStackTrace();
   } finally {
     JdbcUtil.cleanup(ps, con);
   }
   return x;
 }