From dac3d710c32a46abcfbcb90bf166b736ca0d12ce Mon Sep 17 00:00:00 2001
From: dougang <78125310@kidgrow.com>
Date: Fri, 19 Jun 2020 11:17:52 +0800
Subject: [PATCH] 1、二维码生成工具类 2、Aes加解密工具类
---
kidgrow-commons/kidgrow-common-spring-boot-starter/src/main/java/com/kidgrow/common/utils/AesUtils.java | 94 +++++++++++++++++++++++
kidgrow-commons/kidgrow-common-spring-boot-starter/pom.xml | 12 +++
kidgrow-commons/kidgrow-common-spring-boot-starter/src/main/java/com/kidgrow/common/utils/QRCodeUtil.java | 97 ++++++++++++++++++++++++
3 files changed, 203 insertions(+), 0 deletions(-)
diff --git a/kidgrow-commons/kidgrow-common-spring-boot-starter/pom.xml b/kidgrow-commons/kidgrow-common-spring-boot-starter/pom.xml
index c04239e..58af463 100644
--- a/kidgrow-commons/kidgrow-common-spring-boot-starter/pom.xml
+++ b/kidgrow-commons/kidgrow-common-spring-boot-starter/pom.xml
@@ -136,6 +136,18 @@
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-bus-amqp</artifactId>
</dependency>
+ <!-- https://mvnrepository.com/artifact/com.google.zxing/core -->
+ <dependency>
+ <groupId>com.google.zxing</groupId>
+ <artifactId>core</artifactId>
+ <version>3.4.0</version>
+ </dependency>
+ <!-- https://mvnrepository.com/artifact/com.google.zxing/javase -->
+ <dependency>
+ <groupId>com.google.zxing</groupId>
+ <artifactId>javase</artifactId>
+ <version>3.4.0</version>
+ </dependency>
</dependencies>
<build>
diff --git a/kidgrow-commons/kidgrow-common-spring-boot-starter/src/main/java/com/kidgrow/common/utils/AesUtils.java b/kidgrow-commons/kidgrow-common-spring-boot-starter/src/main/java/com/kidgrow/common/utils/AesUtils.java
new file mode 100644
index 0000000..2c49875
--- /dev/null
+++ b/kidgrow-commons/kidgrow-common-spring-boot-starter/src/main/java/com/kidgrow/common/utils/AesUtils.java
@@ -0,0 +1,94 @@
+package com.kidgrow.common.utils;
+
+import org.apache.commons.codec.binary.Base64;
+
+import javax.crypto.Cipher;
+import javax.crypto.spec.IvParameterSpec;
+import javax.crypto.spec.SecretKeySpec;
+
+/**
+ * @Author: dougang
+ * @Description:
+ * @Date: create in 2020/6/19 10:44
+ */
+public class AesUtils {
+ //最长十六位
+ private static final String KEY = "66XiGaoKeJi@COM6";
+ private static final String IV = "123#XIGAO.com456";
+
+ /**
+ * 加密方法
+ * @param data 要加密的数据
+ * @param key 加密key
+ * @param iv 加密iv
+ * @return 加密的结果
+ * @throws Exception
+ */
+ public static String encrypt(String data, String key, String iv) throws Exception {
+ try {
+
+ Cipher cipher = Cipher.getInstance("AES/CBC/NoPadding");
+ int blockSize = cipher.getBlockSize();
+ byte[] dataBytes = data.getBytes();
+ int plaintextLength = dataBytes.length;
+ if (plaintextLength % blockSize != 0) {
+ plaintextLength = plaintextLength + (blockSize - (plaintextLength % blockSize));
+ }
+ byte[] plaintext = new byte[plaintextLength];
+ System.arraycopy(dataBytes, 0, plaintext, 0, dataBytes.length);
+ SecretKeySpec keyspec = new SecretKeySpec(key.getBytes(), "AES");
+ IvParameterSpec ivspec = new IvParameterSpec(iv.getBytes());
+ cipher.init(Cipher.ENCRYPT_MODE, keyspec, ivspec);
+ byte[] encrypted = cipher.doFinal(plaintext);
+ return new Base64().encodeToString(encrypted);
+
+ } catch (Exception e) {
+ e.printStackTrace();
+ return null;
+ }
+ }
+
+ /**
+ * 解密方法
+ * @param data 要解密的数据
+ * @param key 解密key
+ * @param iv 解密iv
+ * @return 解密的结果
+ * @throws Exception
+ */
+ public static String desEncrypt(String data, String key, String iv) throws Exception {
+ try {
+ byte[] encrypted1 = new Base64().decode(data);
+ Cipher cipher = Cipher.getInstance("AES/CBC/NoPadding");
+ SecretKeySpec keyspec = new SecretKeySpec(key.getBytes(), "AES");
+ IvParameterSpec ivspec = new IvParameterSpec(iv.getBytes());
+ cipher.init(Cipher.DECRYPT_MODE, keyspec, ivspec);
+ byte[] original = cipher.doFinal(encrypted1);
+ String originalString = new String(original);
+ return originalString;
+ } catch (Exception e) {
+ e.printStackTrace();
+ return null;
+ }
+ }
+
+ /**
+ * 使用默认的key和iv加密
+ * @param data
+ * @return
+ * @throws Exception
+ */
+ public static String encrypt(String data) throws Exception {
+ return encrypt(data, KEY, IV);
+ }
+
+ /**
+ * 使用默认的key和iv解密
+ * @param data
+ * @return
+ * @throws Exception
+ */
+ public static String desEncrypt(String data) throws Exception {
+ return desEncrypt(data, KEY, IV);
+ }
+}
diff --git a/kidgrow-commons/kidgrow-common-spring-boot-starter/src/main/java/com/kidgrow/common/utils/QRCodeUtil.java b/kidgrow-commons/kidgrow-common-spring-boot-starter/src/main/java/com/kidgrow/common/utils/QRCodeUtil.java
new file mode 100644
index 0000000..ee58759
--- /dev/null
+++ b/kidgrow-commons/kidgrow-common-spring-boot-starter/src/main/java/com/kidgrow/common/utils/QRCodeUtil.java
@@ -0,0 +1,97 @@
+package com.kidgrow.common.utils;
+
+import com.google.zxing.BarcodeFormat;
+import com.google.zxing.EncodeHintType;
+import com.google.zxing.MultiFormatWriter;
+import com.google.zxing.WriterException;
+import com.google.zxing.common.BitMatrix;
+import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
+import sun.misc.BASE64Encoder;
+
+import javax.imageio.ImageIO;
+import java.awt.image.BufferedImage;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.util.Hashtable;
+
+/**
+ * @Author: dougang
+ * @Description:
+ * @Date: create in 2020/6/19 10:02
+ */
+public class QRCodeUtil {
+
+ /**
+ * 生成二维码
+ * @param contents
+ * @param width
+ * @param height
+ * @param level 0:M,1:L,2:H,3:Q
+ * @return
+ */
+ public static String creatRrCode(String contents, int width, int height,int level) {
+ String binary = null;
+ Hashtable hints = new Hashtable();
+ hints.put(EncodeHintType.CHARACTER_SET, "utf-8");
+ switch (level){
+ case 0:
+ hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.M);
+ break;
+ case 1:
+ hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.L);
+ break;
+ case 2:
+ hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.H);
+ break;
+ case 3:
+ hints.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.Q);
+ break;
+ default:
+ break;
+ }
+
+ try {
+ BitMatrix bitMatrix = new MultiFormatWriter().encode(
+ contents, BarcodeFormat.QR_CODE, width, height, hints);
+ // 读取文件转换为字节数组
+ ByteArrayOutputStream out = new ByteArrayOutputStream();
+ BufferedImage image = toBufferedImage(bitMatrix);
+ //转换成png格式的IO流
+ ImageIO.write(image, "png", out);
+ byte[] bytes = out.toByteArray();
+
+ // 将字节数组转为二进制
+ BASE64Encoder encoder = new BASE64Encoder();
+ binary = "data:image/png;base64," + encoder.encodeBuffer(bytes).trim();
+ } catch (WriterException e) {
+ // TODO Auto-generated catch block
+ e.printStackTrace();
+ } catch (IOException e) {
+ // TODO Auto-generated catch block
+ e.printStackTrace();
+ }
+ return binary;
+ }
+
+ /**
+ * image流数据处理
+ *
+ * @author ianly
+ */
+ private static BufferedImage toBufferedImage(BitMatrix matrix) {
+ int width = matrix.getWidth();
+ int height = matrix.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, matrix.get(x, y) ? 0xFF000000 : 0xFFFFFFFF);
+ }
+ }
+ return image;
+ }
+
+ public static void main(String[] args) {
+ String binary = QRCodeUtil.creatRrCode("https://baidu.com", 200,200,12);
+ System.out.println(binary);
+ }
+}
--
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