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@@ -10,6 +10,7 @@ import com.google.zxing.WriterException;
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import com.google.zxing.client.j2se.MatrixToImageWriter;
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import com.google.zxing.common.BitMatrix;
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import com.google.zxing.qrcode.QRCodeWriter;
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+import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
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import lombok.Getter;
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import org.apache.http.entity.ContentType;
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import org.springframework.beans.factory.InitializingBean;
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@@ -17,15 +18,23 @@ import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.mock.web.MockMultipartFile;
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import org.springframework.stereotype.Component;
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+import org.springframework.util.StringUtils;
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import org.springframework.web.multipart.MultipartFile;
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+import sun.font.FontDesignMetrics;
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-import java.io.File;
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-import java.io.FileInputStream;
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-import java.io.IOException;
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+import javax.imageio.ImageIO;
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+import java.awt.*;
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+import java.awt.font.FontRenderContext;
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+import java.awt.font.LineMetrics;
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+import java.awt.image.BufferedImage;
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+import java.io.*;
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import java.nio.charset.StandardCharsets;
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import java.nio.file.FileSystems;
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import java.nio.file.Path;
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+import java.util.HashMap;
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import java.util.Hashtable;
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+import java.util.Properties;
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+
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/**
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* @Author:chengchangjiang
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* @Description: 二维码Util类
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@@ -45,6 +54,7 @@ public class QRCodeUtil implements InitializingBean {
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@Value("${oss.endpoint.default:}")
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private String endpoint;
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+ private static final int QRCODE_SIZE = 320; // 二维码尺寸，宽度和高度均是320
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private String host;
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@Override
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public void afterPropertiesSet() throws Exception {
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@@ -87,6 +97,147 @@ public class QRCodeUtil implements InitializingBean {
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return "error";
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}
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}
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+ /***
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+ * 生成二维码图片并上传OSS
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+ * @param text 二维码内容
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+ * @param name 图片名字
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+ * @return
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+ */
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+ public String generateQRCodeImageTask(String text,String name, String bottomText){
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+ try {
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+ HashMap<EncodeHintType, Object> hints = new HashMap<>();
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+ hints.put(EncodeHintType.CHARACTER_SET, "utf-8"); //定义内容字符集的编码
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+ hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.L); //定义纠错等级
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+ hints.put(EncodeHintType.MARGIN, 1);
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+ QRCodeWriter qrCodeWriter = new QRCodeWriter();
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+ BitMatrix bitMatrix = qrCodeWriter.encode(text, BarcodeFormat.QR_CODE, QRCODE_SIZE, QRCODE_SIZE, hints);
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+
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+ int width = bitMatrix.getWidth();
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+ int height = bitMatrix.getHeight();
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+ int tempHeight = height;
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+ if (StringUtils.hasText(bottomText)) {
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+ tempHeight = tempHeight + 12;
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+ }
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+ BufferedImage image = new BufferedImage(width, tempHeight, BufferedImage.TYPE_INT_RGB);
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+ for (int x = 0; x < width; x++) {
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+ for (int y = 0; y < height; y++) {
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+ image.setRGB(x, y, bitMatrix.get(x, y) ? 0xFF000000 : 0xFFFFFFFF);
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+ }
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+ }
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+ // 判断是否添加底部文字
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+ if (StringUtils.hasText(bottomText)) {
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+ addFontImage(image, bottomText);
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+ }
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+
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+ File file = new File( new String(("templates" + File.separator + name+".png").getBytes(StandardCharsets.UTF_8), StandardCharsets.UTF_8));
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+ if(!file.exists()){
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+ boolean flag = file.mkdirs();
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+ }
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+ Path path = FileSystems.getDefault().getPath(file.getAbsoluteFile().getPath());
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+
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+// ByteArrayOutputStream out = new ByteArrayOutputStream();
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+// ImageIO.write(image,"png",path);
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+// MatrixToImageWriter.writeToPath(bitMatrix, "PNG", path);
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+
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+ //创建一个ByteArrayOutputStream
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+ ByteArrayOutputStream os = new ByteArrayOutputStream();
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+ //把BufferedImage写入ByteArrayOutputStream
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+ ImageIO.write(image, "png", os);
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+ //ByteArrayOutputStream转成InputStream
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+ InputStream input = new ByteArrayInputStream(os.toByteArray());
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+ //InputStream转成MultipartFile
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+ MultipartFile multipartFile =new MockMultipartFile("file", "file.jpg", "text/plain", input);
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+
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+// FileInputStream fileInputStream = new FileInputStream(file.getAbsoluteFile());
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+// MultipartFile multipartFile = new MockMultipartFile( ContentType.APPLICATION_OCTET_STREAM.toString(), fileInputStream);
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+ String result = upload(multipartFile,name);
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+ file.delete();
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+ return result;
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+
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+//
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+//
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+// QRCodeWriter qrCodeWriter = new QRCodeWriter();
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+// Hashtable<EncodeHintType, Object> hints = new Hashtable();
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+// hints.put(EncodeHintType.CHARACTER_SET, "UTF-8");
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+// BitMatrix bitMatrix = qrCodeWriter.encode(type+","+text, BarcodeFormat.QR_CODE, width, height,hints);
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+//
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+// File file = new File( new String(("templates" + File.separator + name+".png").getBytes(StandardCharsets.UTF_8), StandardCharsets.UTF_8));
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+// if(!file.exists()){
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+// boolean flag = file.mkdirs();
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+// }
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+// Path path = FileSystems.getDefault().getPath(file.getAbsoluteFile().getPath());
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+//
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+// MatrixToImageWriter.writeToPath(bitMatrix, "PNG", path);
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+//
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+// FileInputStream fileInputStream = new FileInputStream(file.getAbsoluteFile());
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+//
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+// MultipartFile multipartFile = new MockMultipartFile( ContentType.APPLICATION_OCTET_STREAM.toString(), fileInputStream);
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+// String result = upload(multipartFile,name);
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+// file.delete();
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+// return result;
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+ }
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+ catch (Exception e){
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+ System.out.println("二维码异常："+e.toString());
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+ return "error";
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+ }
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+ }
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+ private static void addFontImage(BufferedImage source, String declareText) {
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+ //生成image
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+ int defineWidth = QRCODE_SIZE;
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+ int defineHeight = 20;
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+ BufferedImage textImage = new BufferedImage(defineWidth, defineHeight, BufferedImage.TYPE_INT_RGB);
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+ Graphics2D g2 = (Graphics2D) textImage.getGraphics();
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+ //开启文字抗锯齿
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+ g2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
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+ g2.setBackground(Color.WHITE);
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+ g2.clearRect(0, 0, defineWidth, defineHeight);
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+ g2.setPaint(Color.BLACK);
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+ FontRenderContext context = g2.getFontRenderContext();
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+ String font_cn = getChineseFont();
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+ //部署linux需要注意 linux无此字体会显示方块
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+ Font font = new Font("宋体", Font.BOLD, 18);
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+
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+ g2.setFont(font);
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+ LineMetrics lineMetrics = font.getLineMetrics(declareText, context);
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+ FontMetrics fontMetrics = FontDesignMetrics.getMetrics(font);
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+ float offset = (defineWidth - fontMetrics.stringWidth(declareText)) / 2;
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+ float y = (defineHeight + lineMetrics.getAscent() - lineMetrics.getDescent() - lineMetrics.getLeading()) / 2;
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+ g2.drawString(declareText, (int) offset, (int) y);
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+
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+ Graphics2D graph = source.createGraphics();
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+ //开启文字抗锯齿
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+ graph.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
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+ //添加image
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+ int width = textImage.getWidth(null);
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+ int height = textImage.getHeight(null);
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+
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+ Image src = textImage;
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+ graph.drawImage(src, 0, QRCODE_SIZE - 8, width, height, Color.WHITE, null);
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+ graph.dispose();
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+ }
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+ /**
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+ * 获取中文字体位置
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+ *
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+ * @return
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+ * @author xxj 2017年4月28日
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+ */
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+ private static String getChineseFont() {
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+
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+ //宋体（对应css中的 属性 font-family: SimSun; /*宋体*/）
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+ String font1 = "templates" + File.separator + "msyh.ttc";
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+// String font1 = "templates" + File.separator + "simsun.ttf";
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+ //判断系统类型，加载字体文件
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+ Properties prop = System.getProperties();
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+ String osName = prop.getProperty("os.name").toLowerCase();
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+ System.out.println(osName);
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+ if (osName.indexOf("linux") > -1) {
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+ font1 = "/usr/share/fonts/chinese/simsun.ttc";
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+ }
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+ else{
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+ font1 = "宋体";
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+ }
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+ return font1;
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+ }
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/**
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* 后台通过服务器间接传文件
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* @param file
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