java中ResultSet遍历数据

1.查找数据库中表的列名

String sql = "select *from tblmetadatainfo";
		ResultSet rs = MySqlHelper.executeQuery(sql, null);
		String str="";
		try {
			ResultSetMetaData rsmd = rs.getMetaData();
			for (int i = 1; i < rsmd.getColumnCount(); i++) {
				str+=rsmd.getColumnName(i)+",";
			}
			str=str.substring(0, str.length()-1);
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
 
  
 
  
 
  
 2.查找数据库中表中每条记录的列值 
  
 
  
 
  
for(int i=1;i