java.security.NoSuchAlgorithmException: Cannot find any provider supporting AES/CBC/PKCS7Padding

find any provider supporting AES/CBC/PKCS7Padding"/>

java.security.NoSuchAlgorithmException: Cannot find any provider supporting AES/CBC/PKCS7Padding

java.security.NoSuchAlgorithmException: Cannot find any provider supporting AES/CBC/PKCS7Padding
遇到以上问题，先后修改了jdk1.8的jar包

方法一失败：
在AES加解密工具类中加静态代码

static {    Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider());}

升级bcprov包版本

<dependency><groupId>org.bouncycastle</groupId><artifactId>bcprov-jdk15on</artifactId><version>1.56</version></dependency>

方法二成功：
1.在 jdk安装目录中（%JAVA_HOME%\jre\lib\ext）添加 jar 包 bcprov-jdk16-1.46.jar

2.在 jdk安装目录下（ %JAVA_HOME%\jre\lib\security ）修改 java.security 文件，的 security.provider.7=com.sun.security.sasl.Provider 替换为security.provider.7=org.bouncycastle.jce.provider.BouncyCastleProvider

此种方式有效，但是不能保证每台服务器都可以是这种状态
因此还需要从代码下手

方法三成功：
把用到解加密的AES包中的PKCS7Padding修改成PKCS5Padding
成功解决。
以下是我的AESUtil工具类

public class AESHelperNewForMsg {
private static final String ENCODE = “UTF-8”; // AES加密时使用UTF8编码方式

private final String KEY_GENERATION_ALG = "PBKDF2WithHmacSHA1";private int HASH_ITERATIONS = 10000;
private int KEY_LENGTH = 256;private byte[] salt = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0xA, 0xB, 0xC, 0xD, 0xE, 0xF }; // must save this for next time we want the keyprivate PBEKeySpec myKeyspec = null;private SecretKeyFactory keyfactory = null;
private SecretKey sk = null;
private SecretKeySpec key = null;private Cipher cipher;
boolean isInited = false;byte[] iv = { 0xA, 1, 0xB, 5, 4, 0xF, 7, 9, 0x17, 3, 1, 6, 8, 0xC, 0xD, 91 };private IvParameterSpec IV;final String algorithmStr = "AES/CBC/PKCS5Padding";public AESHelperNewForMsg(String publicKey) {Security.addProvider(new BouncyCastleProvider());try {cipher = Cipher.getInstance(algorithmStr);IV = new IvParameterSpec(iv);keyfactory = SecretKeyFactory.getInstance(KEY_GENERATION_ALG);myKeyspec = new PBEKeySpec(publicKey.toCharArray(), salt, HASH_ITERATIONS, KEY_LENGTH);sk = keyfactory.generateSecret(myKeyspec);byte[] skAsByteArray = sk.getEncoded();key = new SecretKeySpec(skAsByteArray, "AES");} catch (Exception e) {e.printStackTrace();}
}public AESHelperNewForMsg(String publicKey, Integer keyLength, Integer iterations) {KEY_LENGTH = keyLength;HASH_ITERATIONS = iterations;Security.addProvider(new BouncyCastleProvider());try {cipher = Cipher.getInstance(algorithmStr);IV = new IvParameterSpec(iv);keyfactory = SecretKeyFactory.getInstance(KEY_GENERATION_ALG);myKeyspec = new PBEKeySpec(publicKey.toCharArray(), salt, HASH_ITERATIONS, KEY_LENGTH);sk = keyfactory.generateSecret(myKeyspec);byte[] skAsByteArray = sk.getEncoded();key = new SecretKeySpec(skAsByteArray, "AES");} catch (Exception e) {e.printStackTrace();}
}/*** 加密方法** @param content*            要加密的字符串* @return*/
public String encrypt(String content) {byte[] encryptedText = null;try {cipher.init(Cipher.ENCRYPT_MODE, key, IV);encryptedText = cipher.doFinal(content.getBytes(ENCODE));} catch (Exception e) {e.printStackTrace();}return Base64.encodeBase64String(encryptedText);
}/*** 解密方法* @return* @throws UnsupportedEncodingException*/
public String decrypt(String secretContent) throws UnsupportedEncodingException {byte[] s = Base64.decodeBase64(secretContent);byte[] encryptedText = null;try {cipher.init(Cipher.DECRYPT_MODE, key, IV);encryptedText = cipher.doFinal(s);} catch (Exception e) {e.printStackTrace();}return new String(encryptedText, ENCODE);
}private static byte[] shortMD5(String b) throws Exception {try {MessageDigest md = MessageDigest.getInstance("MD5");md.update(b.getBytes(ENCODE));byte[] digest = md.digest();return digest;} catch (Exception e) {throw new Exception();}
}public static void main(String[] args) {String uh3nywr7n85fqqd8a6te3ra82c20inrw = null;try {uh3nywr7n85fqqd8a6te3ra82c20inrw = new AESHelperNew("uh3nywr7n85fqqd8a6te3ra82c20inrw").decrypt("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");} catch (UnsupportedEncodingException e) {e.printStackTrace();}System.out.println("a = " + uh3nywr7n85fqqd8a6te3ra82c20inrw);}

}