当時アリクラウドから身を取得しようと、それは良いのgetではありません。ちょうどライン上のツールを呼び出して、ユーティリティクラスをまとめました。これは、二次元コードは、異なる要件に異なる応じて生成することができるです。
そのような入力パラメータ入力:
コードは以下の通りである:
QRCodeController
package com.richfit.richfit.controller;
import com.richfit.richfit.QRCodeUtil;
import com.richfit.richfit.service.QRCodeAddLogoService;
import com.richfit.richfit.service.QRCodeService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
import java.io.File;
/**
* @ClassName QRCodeController
* @Description: 二维码生成(根据不同要求,required = false 输入参数)
* @Author BruthLi
* @Date 2020/2/8
* @Version V1.0
**/
@Api(value = "二维码生成(根据不同要求)")
@RestController
@RequestMapping(value = "/sys/qrcode")
public class QRCodeController {
@Autowired
private QRCodeService qRCodeService;
@Autowired
private QRCodeAddLogoService qRCodeAddLogoService;
/**
* 生成不同种类的二维码 依赖于QRCodeUtil工具类
* @param content 内容
* @param imgPath LOGO地址
* @param destPath 存放目录
* @param needCompress 是否压缩LOGO 不压logo会把二维码掩盖那就不是二维码了也不能扫了
* @throws Exception
*/
@ApiOperation(value = "二维码生成(内嵌logo)",notes = "二维码生成(内嵌logo)")
@RequestMapping(value = "/qrcodeaddlogo",method = RequestMethod.POST)
public String qrcodAddLogo(@ApiParam(name = "content",value = "扫码后跳转地址",required = true) @RequestParam(value = "content",required = true)String content,
@ApiParam(name = "imgPath",value = "logo的地址",required = false) @RequestParam(value = "imgPath",required = false)String imgPath,
@ApiParam(name = "destPath",value = "二维码在本地的保存地址",required = true) @RequestParam(value = "destPath",required = true)String destPath,
@ApiParam(name = "needCompress",value = "是否压缩LOGO",required = false) @RequestParam(value = "needCompress",required = false)boolean needCompress,
@ApiParam(name = "imageType",value = "生成图片的类型例如 jpg 注意前面不需要加 . ",required = true) @RequestParam(value = "imageType",required = true)String imageType) throws Exception{
String encode = QRCodeUtil.encode(content, imgPath, destPath, needCompress,imageType);
return encode;
}
/**
*生成普通二维码(没有logo)
* @param content
* @param path
* @param imageType
* @return File "C:\\0c93c3c3-2153-44c4-8795-836fbcfe6509.jpg"
*/
@ApiOperation(value = "二维码生成",notes = "二维码生成")
@RequestMapping(value = "/qrcodeproduct",method = RequestMethod.POST)
public File qrcodeproduct(@ApiParam(name = "content",value = "扫码后跳转地址",required = true) @RequestParam(value = "content",required = true)String content,
@ApiParam(name = "path",value = "二维码在本地的保存地址",required = true) @RequestParam(value = "path",required = true)String path,
@ApiParam(name = "imageType",value = "生成图片的类型例如 jpg 注意前面不需要加 . ",required = true) @RequestParam(value = "imageType",required = true)String imageType){
return qRCodeService.qrcodeproduct(content,path,imageType);
}
}
QRCodeUtil
package com.richfit.richfit;
import cn.hutool.extra.qrcode.BufferedImageLuminanceSource;
import com.google.zxing.*;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.common.HybridBinarizer;
import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.geom.RoundRectangle2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.OutputStream;
import java.util.Hashtable;
import java.util.Random;
/********************************************************************************
* Description: 二维码制作工具类
* @author BruthLi
* @version 1.0
*/
public class QRCodeUtil {
private static final String CHARSET = "utf-8";
// 二维码尺寸
private static final int QRCODE_SIZE = 300;
// LOGO宽度
private static final int WIDTH = 60;
// LOGO高度
private static final int HEIGHT = 60;
/**
* 生成二维码
* @param content 源内容
* @param imgPath 生成二维码保存的路径
* @param needCompress 是否要压缩
* @return 返回二维码图片
* @throws Exception
*/
private static BufferedImage createImage(String content, String imgPath, boolean needCompress) throws Exception {
Hashtable hints = new Hashtable();
hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
hints.put(EncodeHintType.CHARACTER_SET, CHARSET);
hints.put(EncodeHintType.MARGIN, 1);
BitMatrix bitMatrix = new MultiFormatWriter().encode(content, BarcodeFormat.QR_CODE, QRCODE_SIZE, QRCODE_SIZE,
hints);
int width = bitMatrix.getWidth();
int height = bitMatrix.getHeight();
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
for (int x = 0; x < width; x++) {
for (int y = 0; y < height; y++) {
image.setRGB(x, y, bitMatrix.get(x, y) ? 0xFF000000 : 0xFFFFFFFF);
}
}
if (imgPath == null || "".equals(imgPath)) {
return image;
}
// 插入图片
QRCodeUtil.insertImage(image, imgPath, needCompress);
return image;
}
/**
* 在生成的二维码中插入图片
* @param source
* @param imgPath
* @param needCompress
* @throws Exception
*/
private static void insertImage(BufferedImage source, String imgPath, boolean needCompress) throws Exception {
File file = new File(imgPath);
if (!file.exists()) {
System.err.println("" + imgPath + " 该文件不存在!");
return;
}
Image src = ImageIO.read(new File(imgPath));
int width = src.getWidth(null);
int height = src.getHeight(null);
if (needCompress) { // 压缩LOGO
if (width > WIDTH) {
width = WIDTH;
}
if (height > HEIGHT) {
height = HEIGHT;
}
Image image = src.getScaledInstance(width, height, Image.SCALE_SMOOTH);
BufferedImage tag = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
Graphics g = tag.getGraphics();
g.drawImage(image, 0, 0, null); // 绘制缩小后的图
g.dispose();
src = image;
}
// 插入LOGO
Graphics2D graph = source.createGraphics();
int x = (QRCODE_SIZE - width) / 2;
int y = (QRCODE_SIZE - height) / 2;
graph.drawImage(src, x, y, width, height, null);
Shape shape = new RoundRectangle2D.Float(x, y, width, width, 6, 6);
graph.setStroke(new BasicStroke(3f));
graph.draw(shape);
graph.dispose();
}
/**
* 生成带logo二维码
* @param content
* @param imgPath logo图片
* @param destPath
* @param needCompress
* @parm imageType 图片结尾标志 jpg png
* @throws Exception
*/
public static String encode(String content, String imgPath, String destPath, boolean needCompress,String imageType) throws Exception {
BufferedImage image = QRCodeUtil.createImage(content, imgPath, needCompress);
mkdirs(destPath);
String file = new Random().nextInt(99999999) + "."+imageType;//生成随机文件名
ImageIO.write(image, imageType, new File(destPath + "/" + file));
return file;
}
public static void mkdirs(String destPath) {
File file = new File(destPath);
// 当文件夹不存在时,mkdirs会自动创建多层目录,区别于mkdir。(mkdir如果父目录不存在则会抛出异常)
if (!file.exists() && !file.isDirectory()) {
file.mkdirs();
}
}
/**
* 生成带logo二维码 不压缩
* @param content
* @param imgPath
* @param destPath
* @param imageType
* @throws Exception
*/
public static void encode(String content, String imgPath, String destPath,String imageType) throws Exception {
QRCodeUtil.encode(content, imgPath, destPath, false,imageType);
}
/**
* 生成不带logo二维码
* @param content
* @param imgPath
* @param destPath
* @param imageType
* @throws Exception
*/
public static void encode(String content, String destPath, boolean needCompress,String imageType) throws Exception {
QRCodeUtil.encode(content, null, destPath, needCompress,imageType);
}
/**
* 生成不带logo二维码 不压缩
* @param content
* @param imgPath
* @param destPath
* @param imageType
* @throws Exception
*/
public static void encode(String content, String destPath,String imageType) throws Exception {
QRCodeUtil.encode(content, null, destPath, false,imageType);
}
public static void encode(String content, String imgPath, OutputStream output, boolean needCompress, String imageType)
throws Exception {
BufferedImage image = QRCodeUtil.createImage(content, imgPath, needCompress);
ImageIO.write(image, imageType, output);
}
/**
* 生成不带logo二维码 不压缩 输入流的形式
* @param content
* @param output
* @param imageType
* @throws Exception
*/
public static void encode(String content, OutputStream output,String imageType) throws Exception {
QRCodeUtil.encode(content, null, output, false,imageType);
}
/**
* 从二维码中,解析数据
* @param file 二维码图片文件
* @return 返回从二维码中解析到的数据值
* @throws Exception
*/
public static String decode(File file) throws Exception {
BufferedImage image;
image = ImageIO.read(file);
if (image == null) {
return null;
}
BufferedImageLuminanceSource source = new BufferedImageLuminanceSource(image);
BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
Result result;
Hashtable hints = new Hashtable();
hints.put(DecodeHintType.CHARACTER_SET, CHARSET);
result = new MultiFormatReader().decode(bitmap, hints);
String resultStr = result.getText();
return resultStr;
}
public static String decode(String path) throws Exception {
return QRCodeUtil.decode(new File(path));
}
// try {
////String text = "http://weifeng.nethangzhou.com/wf/weixin/getUserInfoCode";
//String text = "http://www.lechuan100.com/plugin.php?id=haven_article&mod=my&aid=21";
////生成带logo 的二维码
////QRCodeUtil.encode(text, "d:/730.png", "d:/wfqrcode", true);
////生成不带logo 的二维码
//QRCodeUtil.encode(text,"","d:/wfqrcode",true);
//
////指定二维码图片,解析返回数据
////System.out.println(QRCodeUtil.decode("D:/WPS/75040887.jpg"));
//} catch (Exception e) {
//e.printStackTrace();
//}
}