增加二维码生成工具

pom.xml

@@ -340,7 +340,11 @@
             <artifactId>weixin-java-mp</artifactId>
             <version>3.0.0</version>
         </dependency>
-
+        <dependency>
+            <groupId>com.google.zxing</groupId>
+            <artifactId>javase</artifactId>
+            <version>3.3.2</version>
+        </dependency>
 
     </dependencies>
 

src/main/java/org/rcisoft/core/util/QRCodeUtils.java

+package org.rcisoft.core.util;
+
+import java.awt.Color;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+import java.awt.Image;
+import java.awt.font.ImageGraphicAttribute;
+import java.awt.image.BufferedImage;
+import java.io.File;
+import java.io.IOException;
+import java.util.HashMap;
+import java.util.Hashtable;
+import java.util.List;
+
+import javax.imageio.ImageIO;
+
+import com.google.zxing.BarcodeFormat;
+import com.google.zxing.EncodeHintType;
+import com.google.zxing.MultiFormatWriter;
+import com.google.zxing.WriterException;
+import com.google.zxing.client.j2se.BufferedImageLuminanceSource;
+import com.google.zxing.common.BitMatrix;
+import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
+
+public class QRCodeUtils {
+
+	/**
+    * 定义二维码的参数
+    */
+   HashMap hints=new HashMap();
+
+   /** 数据字符编码格式 **/
+   private static String codeFormate="UTF-8";
+   /** 二维码纠错等级  **/
+   private static ErrorCorrectionLevel QRCodeErrorLevel=ErrorCorrectionLevel.M;
+   /** 图片边距 **/
+   private static int imagePadding=0;
+   /** 二维码尺寸 **/
+   private static int QRCODE_SIZE = 400;
+   /** 输出图片格式  **/
+   private static String FORMAT_NAME = "JPG";
+   /** 是否去除外部的边框 **/
+   private static boolean cleanPadding=false;
+	
+	private static BufferedImage createQRCodeImage(String dataInfo,Hashtable<EncodeHintType, Object>hints) throws WriterException{
+		if(hints==null || hints.isEmpty()){
+			hints = new Hashtable<EncodeHintType, Object>();
+			hints.put(EncodeHintType.ERROR_CORRECTION, QRCodeErrorLevel);  
+	        hints.put(EncodeHintType.CHARACTER_SET, codeFormate);  
+	        hints.put(EncodeHintType.MARGIN, imagePadding);
+		}
+        BitMatrix bitMatrix = new MultiFormatWriter().encode(dataInfo, BarcodeFormat.QR_CODE, QRCODE_SIZE, QRCODE_SIZE, hints);  
+        //此处判断是否需要将图片两边的留白进行处理
+        BufferedImage resultImage=null;
+        if(cleanPadding){
+        	//1.1去白边
+        	int[] rec = bitMatrix.getEnclosingRectangle();  
+            int resWidth = rec[2] + 5;  
+            int resHeight = rec[3] + 5;  
+            BitMatrix resMatrix = new BitMatrix(resWidth, resHeight);  
+            resMatrix.clear();  
+            for (int i = 0; i < resWidth; i++) {  
+                for (int j = 0; j < resHeight; j++) {  
+                    if (bitMatrix.get(i + rec[0], j + rec[1])) { 
+                         resMatrix.set(i, j); 
+                    } 
+                }  
+            }  
+            //2
+            int width = resMatrix.getWidth();
+            int height = resMatrix.getHeight();
+            resultImage = new BufferedImage(width, height,BufferedImage.TYPE_INT_RGB);
+            for (int x = 0; x < width; x++) {
+                for (int y = 0; y < height; y++) {
+                	resultImage.setRGB(x, y, resMatrix.get(x, y) == true ? Color.BLACK.getRGB():Color.WHITE.getRGB());
+                }
+
+            }
+        }else{
+        	int width = bitMatrix.getWidth();  
+            int height = bitMatrix.getHeight();
+            resultImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);  
+            for (int x = 0; x < width; x++) {  
+                for (int y = 0; y < height; y++) {  
+                	resultImage.setRGB(x, y, bitMatrix.get(x, y) ? 0xFF000000 : 0xFFFFFFFF);  
+                }  
+            }
+        }
+        //此处开始将图片输出出来
+        return resultImage;
+	}
+	
+	
+	public static String createQRCodeFile(String dataInfo,String filePath,String fileName) throws WriterException, IOException{
+		//输出二维码
+		BufferedImage QRCodeImage = createQRCodeImage(dataInfo,null);
+		//判断文件路径是否存在
+		File saveDir=new File(filePath);
+		if(!saveDir.exists()){
+			saveDir.mkdirs();
+		}
+		String filepathStr=filePath+"/"+fileName+"."+FORMAT_NAME;
+		//开始写文件啦
+		ImageIO.write(QRCodeImage, FORMAT_NAME, new File(filepathStr));
+		return filepathStr;
+	}
+	
+	/**
+	 * 批量生成纯二维码
+	 * @param dataList
+	 * @param filePath
+	 * @param fileName
+	 * @return
+	 * @throws WriterException 
+	 * @throws IOException 
+	 */
+	public static String createQRCodeFileList(List<String>dataList,String filePath,List<String> fileNameList) throws WriterException, IOException{
+		Hashtable<EncodeHintType, Object>hints = new Hashtable<EncodeHintType, Object>();
+		hints.put(EncodeHintType.ERROR_CORRECTION, QRCodeErrorLevel);  
+        hints.put(EncodeHintType.CHARACTER_SET, codeFormate);  
+        hints.put(EncodeHintType.MARGIN, imagePadding);
+		//判断文件路径是否存在
+		File saveDir=new File(filePath);
+		if(!saveDir.exists()){
+			saveDir.mkdirs();
+		}
+        if(dataList!=null && !dataList.isEmpty() && fileNameList!=null && !dataList.isEmpty()){
+        	if(dataList.size()==fileNameList.size()){
+                for(int i=0;i<dataList.size();i++){
+                	String dataInfo=dataList.get(i);
+                	//输出二维码
+            		BufferedImage QRCodeImage = createQRCodeImage(dataInfo,hints);
+            		String filepathStr=filePath+"/"+fileNameList.get(i)+"."+FORMAT_NAME;
+            		//开始写文件啦
+            		ImageIO.write(QRCodeImage, FORMAT_NAME, new File(filepathStr));
+            		System.out.println("当前输出第"+(i+1)+"个，共计："+dataList.size()+"个");
+                }
+                return "SUCCESS";
+        	}else{
+        		return "ERROR";
+        	}
+
+        }else{
+        	return "ERROR";
+        }
+	}
+	
+	public static String createQRCordAndCompositeImage(String dataInfo,String backgroundFilePath, String filePath,String fileName,int x,int y,int QRCodeSize) throws IOException, WriterException{
+		//判断文件路径是否存在
+		File saveDir=new File(filePath);
+		if(!saveDir.exists()){
+			saveDir.mkdirs();
+		}
+		//读取背景图
+		BufferedImage backGroundImage = ImageIO.read(new File(backgroundFilePath));
+		//获取背景图大小
+		Graphics graphics = backGroundImage.getGraphics();
+		BufferedImage QRCodeImage = createQRCodeImage(dataInfo,null);
+		graphics.drawImage(QRCodeImage, x, y,QRCodeSize,QRCodeSize, null);
+		graphics.dispose();
+		String filepathStr=filePath+"/"+fileName+"."+FORMAT_NAME;
+		ImageIO.write(backGroundImage, FORMAT_NAME, new File(filepathStr));
+		return filepathStr;
+	}
+	public static String createQRCodeAndCompImageList(List<String>dataList,String backgroundFilePath,String filePath,List<String> fileNameList,int x,int y,int QRCodeSize) throws IOException, WriterException{
+		//判断文件路径是否存在
+		File saveDir=new File(filePath);
+		if(!saveDir.exists()){
+			saveDir.mkdirs();
+		}
+		//读取背景图
+		BufferedImage backGroundImage = ImageIO.read(new File(backgroundFilePath));
+		//获取背景图大小
+		int height = backGroundImage.getHeight();
+		int width = backGroundImage.getWidth();
+		//构建二维码配置信息
+		Hashtable<EncodeHintType, Object>hints = new Hashtable<EncodeHintType, Object>();
+		hints.put(EncodeHintType.ERROR_CORRECTION, QRCodeErrorLevel);  
+        hints.put(EncodeHintType.CHARACTER_SET, codeFormate);  
+        hints.put(EncodeHintType.MARGIN, imagePadding);
+        if(dataList!=null && !dataList.isEmpty() && fileNameList!=null && !dataList.isEmpty()){
+        	if(dataList.size()==fileNameList.size()){
+        		for(int i=0;i<dataList.size();i++){
+                	String dataInfo=dataList.get(i);
+                	//输出二维码
+            		BufferedImage QRCodeImage = createQRCodeImage(dataInfo,hints);
+            		Graphics graphics = backGroundImage.getGraphics();
+            		graphics.drawImage(QRCodeImage, x, y,QRCodeSize,QRCodeSize, null);
+            		graphics.dispose();
+            		String filepathStr=filePath+"/"+fileNameList.get(i)+"."+FORMAT_NAME;
+            		//开始写文件啦
+            		ImageIO.write(backGroundImage, FORMAT_NAME, new File(filepathStr));
+            		System.out.println("当前输出第"+(i+1)+"个，共计："+dataList.size()+"个");
+                }
+        		return "SUCCESS";
+        	}else{
+        		return "ERROR";
+        	}
+        	
+        }else{
+        	return "ERROR";
+        }
+	}
+	
+	public static String getCodeFormate() {
+		return codeFormate;
+	}
+	public static void setCodeFormate(String codeFormate) {
+		QRCodeUtils.codeFormate = codeFormate;
+	}
+	public static ErrorCorrectionLevel getQRCodeErrorLevel() {
+		return QRCodeErrorLevel;
+	}
+	public static void setQRCodeErrorLevel(char errorLevel) {
+		switch (errorLevel) {
+		case 'H':
+			QRCodeErrorLevel=ErrorCorrectionLevel.H;
+			break;
+		case 'L':
+			QRCodeErrorLevel=ErrorCorrectionLevel.L;
+			break;
+		case 'M':
+			QRCodeErrorLevel=ErrorCorrectionLevel.M;
+			break;
+		case 'Q':
+			QRCodeErrorLevel=ErrorCorrectionLevel.Q;
+			break;
+		}
+	}
+	public static int getImagePadding() {
+		return imagePadding;
+	}
+	public static void setImagePadding(int imagePadding) {
+		QRCodeUtils.imagePadding = imagePadding;
+	}
+	public static int getQRCODE_SIZE() {
+		return QRCODE_SIZE;
+	}
+	public static void setQRCODE_SIZE(int qRCODE_SIZE) {
+		QRCODE_SIZE = qRCODE_SIZE;
+	}
+	public static String getFORMAT_NAME() {
+		return FORMAT_NAME;
+	}
+	public static void setFORMAT_NAME(String fORMAT_NAME) {
+		FORMAT_NAME = fORMAT_NAME;
+	}
+	
+	
+	
+}