Spire.Barcode是一款专业的条码组件，专为开发人员在Java应用程序（J2SE和J2EE）上生成、读取和扫描1D、2D条形码而设计，本文介绍了如何通过Spire.Barcode在Java中扫描条形码。
DataMatrix 条码是由黑色和白色“单元”组成的二维条形码，或以正方形或矩形模式排列的模块。要编码的信息可以是文本或数字数据。
代码：
Step 1:创建一个BarcodeSettings实例
BarcodeSettings settings = new BarcodeSettings();
Step 2:设置条码模块的宽度
settings.X = 2;
Step 3:将条码类型设置为DataMatrix
settings.Type = BarCodeType.DataMatrix;
Step 4:设置数据并显示文字
settings.Data = “ABC 123456789ABC 123456789ABC 123456789”;
settings.Data2D = “ABC 123456789ABC 123456789ABC 123456789”;
Step 5:将DataMatrix符号形状设置为正方形
settings.DataMatrixSymbolShape = DataMatrixSymbolShape.Square;
Step 6:根据设置生成条形码图像并以.png格式保存
BarCodeGenerator generator = new BarCodeGenerator(settings);
Image image = generator.GenerateImage();
image.Save(“DataMatrix.png”, System.Drawing.Imaging.ImageFormat.Png);
要创建矩形的DataMatrix条形码，请将DataMatrixSymbolShape属性设置为Rectangle。
settings.DataMatrixSymbolShape = DataMatrixSymbolShape.Rectangle;
完整代码：
BarcodeSettings settings = new BarcodeSettings();
settings.Type = BarCodeType.DataMatrix;
settings.X = 1.5f;
settings.DataMatrixSymbolShape = DataMatrixSymbolShape.Square;
//rectangular DataMatrix barcode
//settings.DataMatrixSymbolShape = DataMatrixSymbolShape.Rectangle;
settings.Data = “ABC 123456789ABC 123456789ABC 123456789”;
settings.Data2D = “ABC 123456789ABC 123456789ABC 123456789”;
BarCodeGenerator generator = new BarCodeGenerator(settings);
Image image = generator.GenerateImage();
image.Save(“DataMatrix.png”, System.Drawing.Imaging.ImageFormat.Png);
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