用Java生成Xmind脑图并且保存成图片

要用Java生成Xmind脑图并将其保存为图片，你需要使用Xmind API。下面是一个简单的示例代码：

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;

import org.xmind.core.Core;
import org.xmind.core.IWorkbook;
import org.xmind.core.IWorkspace;
import org.xmind.core.util.FileUtils;

public class XmindToImage {

    public static void main(String[] args) {

        // Initialize the Xmind core
        Core.initialize();

        // Create a workspace instance
        IWorkspace workspace = Core.getWorkspace();

        // Create a blank workbook
        IWorkbook workbook = workspace.createWorkbook();

        // Add a sheet
        workbook.createSheet();

        // Save the workbook to a temporary file
        File tempFile = null;
        try {
            tempFile = File.createTempFile("xmind-", ".xmind");
            FileOutputStream outputStream = new FileOutputStream(tempFile);
            workbook.save(outputStream);
            outputStream.close();
        } catch (IOException e) {
            e.printStackTrace();
        }

        // Use the XMind API to export the sheet as an image
        String outputPath = "output.png";
        int width = 1024;
        int height = 768;
        try {
            FileUtils.ensureFileParent(new File(outputPath));
            org.xmind.ui.internal.editor.MindMapImageExporter.export(tempFile.getAbsolutePath(), outputPath, width, height);
        } catch (IOException e) {
            e.printStackTrace();
        }

        // Clean up the temporary file
        tempFile.delete();

        // Shut down the Xmind core
        Core.shutdown();
    }
}

这个示例代码将创建一个空白的Xmind脑图，并将其保存到一个临时文件中。然后，它使用Xmind API将该脑图导出为一个PNG图像文件。请注意，这个示例代码依赖于XMind API，因此你需要将XMind API库添加到你的项目中。