小程式獲取使用者繫結的電話號碼及解密方法(提供Java後臺解密)
阿新 • • 發佈:2018-12-16
小程式前臺程式碼
<button open-type="getPhoneNumber" bindgetphonenumber="telPhone" class="id_style">請填寫手機號碼
</button>
.id_style {
padding-right: 0rpx;
padding-left: 0rpx;
background-color: #fff;
font-size: 30rpx;
text-align: right;
line-height: 72rpx;
border: none;
color: #888;
}
Java後臺程式碼
工具類
package com.ods.common.util; import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.InputStream; import java.io.OutputStream; import it.sauronsoftware.base64.Base64; public class Base64Util { /** *//** * 檔案讀取緩衝區大小 */ private static final int CACHE_SIZE = 1024; /** *//** * <p> * BASE64字串解碼為二進位制資料 * </p> * * @param base64 * @return * @throws Exception */ public static byte[] decode(String base64) throws Exception { return Base64.decode(base64.getBytes()); } /** *//** * <p> * 二進位制資料編碼為BASE64字串 * </p> * * @param bytes * @return * @throws Exception */ public static String encode(byte[] bytes) throws Exception { return new String(Base64.encode(bytes)); } /** *//** * <p> * 將檔案編碼為BASE64字串 * </p> * <p> * 大檔案慎用,可能會導致記憶體溢位 * </p> * * @param filePath 檔案絕對路徑 * @return * @throws Exception */ public static String encodeFile(String filePath) throws Exception { byte[] bytes = fileToByte(filePath); return encode(bytes); } /** *//** * <p> * BASE64字串轉回檔案 * </p> * * @param filePath 檔案絕對路徑 * @param base64 編碼字串 * @throws Exception */ public static void decodeToFile(String filePath, String base64) throws Exception { byte[] bytes = decode(base64); byteArrayToFile(bytes, filePath); } /** *//** * <p> * 檔案轉換為二進位制陣列 * </p> * * @param filePath 檔案路徑 * @return * @throws Exception */ public static byte[] fileToByte(String filePath) throws Exception { byte[] data = new byte[0]; File file = new File(filePath); if (file.exists()) { FileInputStream in = new FileInputStream(file); ByteArrayOutputStream out = new ByteArrayOutputStream(2048); byte[] cache = new byte[CACHE_SIZE]; int nRead = 0; while ((nRead = in.read(cache)) != -1) { out.write(cache, 0, nRead); out.flush(); } out.close(); in.close(); data = out.toByteArray(); } return data; } /** *//** * <p> * 二進位制資料寫檔案 * </p> * * @param bytes 二進位制資料 * @param filePath 檔案生成目錄 */ public static void byteArrayToFile(byte[] bytes, String filePath) throws Exception { InputStream in = new ByteArrayInputStream(bytes); File destFile = new File(filePath); if (!destFile.getParentFile().exists()) { destFile.getParentFile().mkdirs(); } destFile.createNewFile(); OutputStream out = new FileOutputStream(destFile); byte[] cache = new byte[CACHE_SIZE]; int nRead = 0; while ((nRead = in.read(cache)) != -1) { out.write(cache, 0, nRead); out.flush(); } out.close(); in.close(); } }
解析方法
/** * 解密使用者電話 * @param keyStr sessionkey * @param ivStr ivData * @param encDataStr 帶解密資料 * @return * @throws Exception * @author pangxianhe * @date 2018年10月22日 */ public static String decrypt(String keyStr, String ivStr, String encDataStr)throws Exception { byte[] encData = Base64Util.decode(encDataStr); byte[] iv =Base64Util.decode(ivStr); byte[] key = Base64Util.decode(keyStr); AlgorithmParameterSpec ivSpec = new IvParameterSpec(iv); Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding"); SecretKeySpec keySpec = new SecretKeySpec(key, "AES"); cipher.init(Cipher.DECRYPT_MODE, keySpec, ivSpec); return new String(cipher.doFinal(encData),"UTF-8"); } public static void main(String[] args) throws Exception { String encrypData = "dhxK6mXwVPUabiK9i78OP4bmjg1YEYlQNIimEm5WEU6PxB/nexMk+CeBgsH9FFI2v9ikDAjGShPjZJj4xsRkbOH4otOHB3GumTRzh9ZYxXlQyrOnyL2//Yr2AL/KYW47n3JxqeeiVP9y/5JDPcY5HAM4/XDV3SzROI730aItFdHmDhc0/CyDLH1WDzv8y24J9Z/eyv+GzP9rTpdKjN4DA=="; String ivData = "ZwRBTP8AtevYJtbLLh9Lg=="; String sessionKey = "3LL836kTRzaJ5llVmRN6w=="; System.out.println(decrypt(sessionKey,ivData,encrypData)); }
返回:
{"phoneNumber":"15000000000000","purePhoneNumber":"15000000000000","countryCode":"86","watermark":{"timestamp":1540212690,"appid":"wxe48a00000000000"}}
注意:由於以上的字串已經過修改,請填寫正確的引數,然後進行解密