Aes加密和解密

AesUtils类如下：
import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
import org.apache.commons.codec.binary.Base64;

public class AesUtils {
    private static final String ALGORITHMSTR = "AES/ECB/PKCS5Padding";

    public static String encrypt(String content, String key) {
        try {
            byte[] raw = key.getBytes();  //获得密码的字节数组
            SecretKeySpec skey = new SecretKeySpec(raw, "AES"); //根据密码生成AES密钥
            Cipher cipher = Cipher.getInstance(ALGORITHMSTR);  //根据指定算法ALGORITHM自成密码器
            cipher.init(Cipher.ENCRYPT_MODE, skey); //初始化密码器，第一个参数为加密(ENCRYPT_MODE)或者解密(DECRYPT_MODE)操作，第二个参数为生成的AES密钥
            byte [] byte_content = content.getBytes("utf-8"); //获取加密内容的字节数组(设置为utf-8)不然内容中如果有中文和英文混合中文就会解密为乱码
            byte [] encode_content = cipher.doFinal(byte_content); //密码器加密数据
            return Base64
Aes加密和解密

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