} else if (MetadataTableModel.DATA_LENGTH_INDEX == i) {// 数据长度
column.setPreferredWidth(100);
} else if (MetadataTableModel.DATA_PRECISION_INDEX == i) {// 精度
column.setPreferredWidth(100);
} else if (MetadataTableModel.PROPERTY_TYPE_INDEX == i) {// 属性数据类型
JComboBox propertyTypeComboBox = new JComboBox(new PropertyTypeComboBoxModel(new JavaTypes()));
propertyTypeComboBox.setEditable(true);
column.setCellEditor(new DefaultCellEditor(propertyTypeComboBox));
column.setPreferredWidth(250);
} else if (MetadataTableModel.NULLABLE_INDEX == i) {// isEmpty
column.setPreferredWidth(120);