for (int i = 0; i < tableColumnModel.getColumnCount(); i++) {
column = tableColumnModel.getColumn(i);
if (MetadataTableModel.COMMENTS_INDEX == i) {// 注释
column.setPreferredWidth(250);
} else if (MetadataTableModel.SQL_DATA_TYPE_INDEX == i) {// SQL数据类型
JComboBox sqlDataTypeComboBox = new JComboBox(new SqlDataTypeComboBoxModel());
column.setCellEditor(new DefaultCellEditor(sqlDataTypeComboBox));
column.setPreferredWidth(220);
} else if (MetadataTableModel.DATA_LENGTH_INDEX == i) {// 数据长度
column.setPreferredWidth(100);
} else if (MetadataTableModel.DATA_PRECISION_INDEX == i) {// 精度