java 实现将图片填充到excel

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mob649e815ddfb8 2024-02-24 07:30:54 ©著作权

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Java 实现将图片填充到 Excel

流程图

flowchart TD
    Start -->|Step 1| Read Image
    Read Image -->|Step 2| Create Excel File
    Create Excel File -->|Step 3| Insert Image into Excel
    Insert Image into Excel -->|Step 4| Save Excel File
    Save Excel File --> End

表格

步骤	操作
Step 1	读取图片
Step 2	创建 Excel 文件
Step 3	将图片插入到 Excel
Step 4	保存 Excel 文件

详细步骤

Step 1: 读取图片

// 读取图片
File imageFile = new File("path_to_image.jpg");
BufferedImage bufferedImage = ImageIO.read(imageFile);

Step 2: 创建 Excel 文件

// 创建 Excel 工作簿
Workbook workbook = new XSSFWorkbook();
Sheet sheet = workbook.createSheet("Sheet1");

Step 3: 将图片插入到 Excel

// 将图片插入到 Excel
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
ImageIO.write(bufferedImage, "jpg", byteArrayOutputStream);
CreationHelper helper = workbook.getCreationHelper();
Drawing drawing = sheet.createDrawingPatriarch();
ClientAnchor anchor = helper.createClientAnchor();
anchor.setCol1(0);
anchor.setRow1(0);
anchor.setCol2(1);
anchor.setRow2(1);
drawing.createPicture(anchor, workbook.addPicture(byteArrayOutputStream.toByteArray(), Workbook.PICTURE_TYPE_JPEG));

Step 4: 保存 Excel 文件

// 保存 Excel 文件
File excelFile = new File("output.xlsx");
FileOutputStream fileOut = new FileOutputStream(excelFile);
workbook.write(fileOut);
fileOut.close();