每日一帖:ResultSet.updateString()

自己寫的一個JAVA小程序總結：

要點：1）con.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_UPDATABLE);

            2）rs.updateString(j,tableSql);    

                  rs.updateRow(); 

            String query="select * from "+table;
            Connection con=getConnectionMys();
            try...{
                    
                    Statement stmt =con.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,
                                      ResultSet.CONCUR_UPDATABLE);
                    ResultSet rs=stmt.executeQuery(query);
                    ResultSetMetaData rm=rs.getMetaData();
                    
                    while(rs.next())
                    ...{
                        for(int j=1;j<rm.getColumnCount()+1;j++)
                        ...{
                            if(rm.getColumnTypeName(j).equals("VARCHAR"))
                            ...{
                                String tableSql=rs.getString(j);
                                if (tableSql!=null&&(tableSql.indexOf("四川")>=0||tableSql.indexOf("成都")>=0||tableSql.indexOf("****")>=0))
                                ...{
                                    System.out.print(table+"  "+rm.getColumnName(j)+"  "+tableSql.substring(0,Math.min(tableSql.length(),60))+" ");
                                    tableSql=Replace(tableSql,"四川","上海");
                                    tableSql=Replace(tableSql,"成都"," ");
                                    tableSql=Replace(tableSql,"****","****");
                                    rs.updateString(j,tableSql);
                                    rs.updateRow(); 
                                    System.out.print(table+"  "+rm.getColumnName(j)+"  "+tableSql.substring(0,Math.min(tableSql.length(),60))+" ");
                                    n++;
                                } 
                            }
                        }
                    }
                    System.out.print(n+"");
                    rs.close();
                    stmt.close();
                    con.close();
                }
            catch(Exception e)
                ...{
                    e.printStackTrace();
                }