求助：JAVA加密的数据PHP解密

已经尝试过用php解密，但是对java代码不懂导致解密时连蒙带猜，最终也没有解密出来，懂的帮忙解答一下。
java加密后的密文：iP6nVfCE9Eiw47utJDR6wV6Lhl4xyOgYykub0HUJSZQ=
以下是java的aes加密类，希望能用php解密出来

package com.mk.api.util;

import java.security.Key;
import java.security.MessageDigest;
import java.util.Arrays;

import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
import javax.xml.bind.DatatypeConverter;

/**
 * AES 加密
 */
public class AES {

    private static final String AESTYPE = "AES";
    private static final String KEY = "Z8LSq0wWwB5v+6YJzurcP463H3F12iZh74fDj4S74oUH4EONkiKb2FmiWUbtFh97GG/c/lbDE47mvw6j94yXxKHOpoqu6zpLKMKPcOoSppcVWb2q34qENBJkudXUh4MWcreondLmLL2UyydtFKuU9Sa5VgY/CzGaVGJABK2ZR94=";

    /**
     * 加密
     * @param content
     * @return
     */
    public static String encrypt(String str) {
        try {
            Key key = generateKey();
            Cipher c = Cipher.getInstance(AESTYPE);
            c.init(Cipher.ENCRYPT_MODE, key);
            byte[] encVal = c.doFinal(str.getBytes());
            String encryptedValue = DatatypeConverter.printBase64Binary(encVal);
            return encryptedValue;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }


    /**
     * 解密
     * @param content
     * @return
     */
    public static String decrypt(String str) {
        try {
            Key key = generateKey();
            Cipher c = Cipher.getInstance(AESTYPE);
            c.init(Cipher.DECRYPT_MODE, key);
            byte[] decordedValue = DatatypeConverter.parseBase64Binary(str);
            byte[] decValue = c.doFinal(decordedValue);
            String decryptedValue = new String(decValue);
            return decryptedValue;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return null;
    }

    private static Key generateKey() throws Exception {
        byte[] keyValue = KEY.getBytes("UTF-8");
        MessageDigest sha = MessageDigest.getInstance("SHA-1");
        keyValue = sha.digest(keyValue);
        keyValue = Arrays.copyOf(keyValue, 16);
        Key key = new SecretKeySpec(keyValue, AESTYPE);
        return key;
    }


}