在智能标记中分组数据时使用图像标记

本文提供了一个示例，说明在智能标记中对数据进行分组时图像标记的用法。

在智能标记中分组数据时使用图像标记

下面的示例代码创建一个工作簿，然后分别在单元格 D2、E2 和 F2 中添加以下智能标记标签。

 &=Person.Name(group:normal,skip:1)

&=Person.City

&=Person.Photo(Picture:FitToCell)

然后它用数据填充数据源并调用WorkbookDesigner.Process() 方法来处理智能标记标签。代码使用这些图像即月亮.png和月亮2.png但你可以使用任何图像。以下屏幕截图显示了此示例代码的输出。如您所见，E 列和 F 列中的数据根据 D 列中的数据分组。

public static void main(String[] args) throws Exception {

	 // The path to the documents directory.
	String dataDir = Utils.getDataDir(SmartMarkerGroupingImage.class);
	
	SmartMarkerGroupingImage grouping = new SmartMarkerGroupingImage();
	grouping.Execute(dataDir);
}

public void Execute(String dataDir) throws Exception {

	//Get the image
	Path path = Paths.get(dataDir + "sample1.png");
	byte[] photo1 = Files.readAllBytes(path);
	
	//Get the image
	path = Paths.get(dataDir + "sample2.jpg");
	byte[] photo2 = Files.readAllBytes(path);
	
	//Create a new workbook and access its worksheet
	Workbook workbook = new Workbook();
	Worksheet worksheet = workbook.getWorksheets().get(0);

	//Set the standard row height to 35
	worksheet.getCells().setStandardHeight(35);

	//Set column widhts of D, E and F
	worksheet.getCells().setColumnWidth(3, 20);
	worksheet.getCells().setColumnWidth(4, 20);
	worksheet.getCells().setColumnWidth(5, 40);

	//Add the headings in columns D, E and F
	worksheet.getCells().get("D1").putValue("Name");
	Style st = worksheet.getCells().get("D1").getStyle();
	st.getFont().setBold(true);
	worksheet.getCells().get("D1").setStyle(st);

	worksheet.getCells().get("E1").putValue("City");
	worksheet.getCells().get("E1").setStyle(st);

	worksheet.getCells().get("F1").putValue("Photo");
	worksheet.getCells().get("F1").setStyle(st);

	//Add smart marker tags in columns D, E, F
	worksheet.getCells().get("D2").putValue("&=Person.Name(group:normal,skip:1)");
	worksheet.getCells().get("E2").putValue("&=Person.City");
	worksheet.getCells().get("F2").putValue("&=Person.Photo(Picture:FitToCell)");

	//Create Persons objects with photos
	ArrayList<Person> persons = new ArrayList<Person>();       
	persons.add(new Person("George", "New York", photo1));
	persons.add(new Person("George", "New York", photo2));
	persons.add(new Person("George", "New York", photo1));
	persons.add(new Person("George", "New York", photo2));
	persons.add(new Person("Johnson", "London", photo2));
	persons.add(new Person("Johnson", "London", photo1));
	persons.add(new Person("Johnson", "London", photo2));
	persons.add(new Person("Simon", "Paris", photo1));
	persons.add(new Person("Simon", "Paris", photo2));
	persons.add(new Person("Simon", "Paris", photo1));
	persons.add(new Person("Henry", "Sydney", photo2));
	persons.add(new Person("Henry", "Sydney", photo1));
	persons.add(new Person("Henry", "Sydney", photo2));
	
	//Create a workbook designer
	WorkbookDesigner designer = new WorkbookDesigner(workbook);

	//Set the data source and process smart marker tags
	designer.setDataSource("Person", persons);
	designer.process();

	//Save the workbook
	workbook.save(dataDir + "output.xlsx", SaveFormat.XLSX);
	
	System.out.println("File saved");
}
public class Person
{
	//Create Name, City and Photo properties
	private String m_Name;
	private String m_City;
	private byte[] m_Photo;

	public Person(String name, String city, byte[] photo)
	{
		m_Name = name;
		m_City = city;
		m_Photo = photo;
	}

	public String getName() { return this.m_Name; }
	public void setName(String name) { this.m_Name = name; }

	public String getCity() { return this.m_City; }
	public void setCity(String address) { this.m_City = address; }

	public byte[] getPhoto() { return this.m_Photo; }
	public void setAddress(byte[] photo) { this.m_Photo = photo; }
}