Diagramm von Excel nach PNG exportieren

// For complete examples and data files, please go to https://github.com/aspose-cells-cloud/aspose-cells-cloud-java/
    import java.io.*;
    import java.util.HashMap;
    import java.util.List;
    import java.util.Base64;
    import com.aspose.cloud.cells.api.*;
    import com.aspose.cloud.cells.model.*;
    public class Export {
        public static void main(String[] args) {
            String format = "png";
            String objectType = "chart";
            HashMap<String,File> fileMap = new HashMap<String,File>();
            fileMap.put("Book1.xlsx" ,new File("C:\Book1.xlsx") );
            fileMap.put("myDocument.xlsx" ,new File("C:\myDocument.xlsx") );
            try {
                LightCellsApi cellsApi = new LightCellsApi(System.getenv("ProductClientId"), System.getenv("ProductClientSecret"),"v3.0","https://api.aspose.cloud");
                FilesResult response = cellsApi.postExport(fileMap,objectType, format,null);            
                List<FileInfo> files = response.getFiles();
                String filename = files.get(0).getFilename();
                String fileContent = files.get(0).getFileContent();
                byte[] data = Base64.getDecoder().decode(fileContent);
                OutputStream outputStream = new FileOutputStream(filename);
                outputStream.write(data,0,data.length);
                outputStream.close();
            }catch(Exception exception )
            {
                System.out.print(exception);
            }
        }
    }