JDBC删除

 1  if(conn != null){
 2          String temps="3";
 3          conn.setAutoCommit(false);
 4          PreparedStatement preparedStatement = conn.prepareStatement(SQL_USER_DELETE);
 5          preparedStatement.setString(1,temps);
 6          int line =preparedStatement.executeUpdate();conn.commit();
 7          if(line>0)
 8              out.print("删除了"+line+"条数据！");
 9          preparedStatement.close();
10  }
11  conn.close();