微信小程序获取手机号 (java解密)

╰+攻爆jí腚メ 2022-02-21 01:11 587阅读 0赞

## 微信小程序获取手机号,官方文档里面有教程 ##

[官方教程https://developers.weixin.qq.com/miniprogram/dev/framework/open-ability/getPhoneNumber.html][https_developers.weixin.qq.com_miniprogram_dev_framework_open-ability_getPhoneNumber.html]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM2NzI1Mjgy_size_16_color_FFFFFF_t_70]

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM2NzI1Mjgy_size_16_color_FFFFFF_t_70 1]

## 官方也提供了解密方式(但是没有java的) ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM2NzI1Mjgy_size_16_color_FFFFFF_t_70 2]

## 话不多说,先上自己的代码 ##

### pom.xml加入 ###

<dependency>
          <groupId>org.bouncycastle</groupId>
          <artifactId>bcprov-jdk15on</artifactId>
          <version>1.57</version>
    </dependency>

## 工具类 ##

import org.bouncycastle.jce.provider.BouncyCastleProvider;
    import org.bouncycastle.util.Arrays;
    import org.bouncycastle.util.encoders.Base64;
    
    import javax.crypto.Cipher;
    import javax.crypto.spec.IvParameterSpec;
    import javax.crypto.spec.SecretKeySpec;
    import java.security.Key;
    import java.security.Security;
    
    /**
     * 微信工具类
     */
    public class WechatDecryptDataUtil {
    
        public static void main(String[] args) {
            String result = decryptData(
                    "sDXrUftQyBSyY7M4Ro4Xvjl8amI2agPjUWkcJXTJx6qsqaeetGdE7bp7P7V95aU7TS6O6l9cSznKhw5dhvkjSE+2vH19SntKxvfNtWUJigVKgzB28ACPjROC/4tidR4mMjJO81HX9pMCjusMVdYy0YzlYvvtCgTUNIOHNByMSB5fJ+vXIMnw==",
                    "9y9P6RqKVZiWg==",
                    "Yi1SGcsMg=="
            );
            System.out.println("result = " + result);
        }
    
        public static String decryptData(String encryptDataB64, String sessionKeyB64, String ivB64) {
            return new String(
                    decryptOfDiyIV(
                            Base64.decode(encryptDataB64),
                            Base64.decode(sessionKeyB64),
                            Base64.decode(ivB64)
                    )
            );
        }
    
        private static final String KEY_ALGORITHM = "AES";
        private static final String ALGORITHM_STR = "AES/CBC/PKCS7Padding";
        private static Key key;
        private static Cipher cipher;
    
        private static void init(byte[] keyBytes) {
            // 如果密钥不足16位，那么就补足.  这个if 中的内容很重要
            int base = 16;
            if (keyBytes.length % base != 0) {
                int groups = keyBytes.length / base + (keyBytes.length % base != 0 ? 1 : 0);
                byte[] temp = new byte[groups * base];
                Arrays.fill(temp, (byte) 0);
                System.arraycopy(keyBytes, 0, temp, 0, keyBytes.length);
                keyBytes = temp;
            }
            // 初始化
            Security.addProvider(new BouncyCastleProvider());
            // 转化成JAVA的密钥格式
            key = new SecretKeySpec(keyBytes, KEY_ALGORITHM);
            try {
                // 初始化cipher
                cipher = Cipher.getInstance(ALGORITHM_STR, "BC");
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    
        /**
         * 解密方法
         *
         * @param encryptedData 要解密的字符串
         * @param keyBytes      解密密钥
         * @param ivs           自定义对称解密算法初始向量 iv
         * @return 解密后的字节数组
         */
        private static byte[] decryptOfDiyIV(byte[] encryptedData, byte[] keyBytes, byte[] ivs) {
            byte[] encryptedText = null;
            init(keyBytes);
            try {
                cipher.init(Cipher.DECRYPT_MODE, key, new IvParameterSpec(ivs));
                encryptedText = cipher.doFinal(encryptedData);
            } catch (Exception e) {
                e.printStackTrace();
            }
            return encryptedText;
        }
    
    }

## 直接运行main方法试一试 ##

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM2NzI1Mjgy_size_16_color_FFFFFF_t_70 3]

## 成功解析 ##

[https_developers.weixin.qq.com_miniprogram_dev_framework_open-ability_getPhoneNumber.html]: https://developers.weixin.qq.com/miniprogram/dev/framework/open-ability/getPhoneNumber.html
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