Linux下运行java DES解密失败，报javax.crypto.BadPaddingException:Given final block not properly padded

1、报错内容

avax.crypto.BadPaddingException: Given final block not properly padded
	at com.sun.crypto.provider.CipherCore.doFinal(CipherCore.java:810)
	at com.sun.crypto.provider.CipherCore.doFinal(CipherCore.java:675)
	at com.sun.crypto.provider.DESCipher.engineDoFinal(DESCipher.java:314)
	at javax.crypto.Cipher.doFinal(Cipher.java:1976)

2、

import java.security.Key;
import java.security.SecureRandom;

import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.DESKeySpec;

import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;



public class DesEncryptUtil {

    private  Key key;

    public DesEncryptUtil() {
    	setKey2("hahhah");
	}
    /**
     * 根据参数生成KEY
     * 
     * @param strKey
     * 
     * Windows下正常  Linux 下报错
     */
    public void setKey(String strKey) {
        try {
            KeyGenerator _generator = KeyGenerator.getInstance("DES");
            _generator.init(new SecureRandom(strKey.getBytes()));
             this.key = _generator.generateKey();
            _generator = null;
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    //Linux 系统下正常运行
    public void setKey2(String strKey) {
        try {
		    SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");  
		    DESKeySpec keySpec = new DESKeySpec(strKey.getBytes("utf-8"));  
		    this.key = keyFactory.generateSecret(keySpec);  
        } catch (Exception e) {
            e.printStackTrace();
        }finally{

        }
    }

    public static void main(String[] args) {


    	DesEncryptUtil u = new DesEncryptUtil();    
    	for (int i = 1; i < 100; i++) {
    		//加密
    		String encString = u.getEncString(""+i);
    		//解密
    		String desString = u.getDesString(encString);
    		System.err.println("encString:"+encString+";desString:"+desString+":"+i);
    		if (!desString.equals(""+i)) {
    			System.err.println(i+":错误：encString:"+encString+";desString:"+desString);
			}
		}
	}

    /**
     * 加密String明文输入,String密文输出
     * 
     * @param strMing
     * @return 加密
     */
    public String getEncString(String strMing) {
        byte[] byteMi = null;
        byte[] byteMing = null;
        String strMi = "";
        BASE64Encoder base64en = new BASE64Encoder();
        try {
            byteMing = strMing.getBytes("UTF-8");
            byteMi = getEncCode(byteMing);
            strMi = base64en.encode(byteMi);
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            base64en = null;
            byteMing = null;
            byteMi = null;
        }
        return strMi;
    }

    /**
     * 解密 以String密文输入,String明文输出
     * 
     * @param strMi
     * @return 解密
     */
    public String getDesString(String strMi) {
        BASE64Decoder base64De = new BASE64Decoder();
        byte[] byteMing = null;
        byte[] byteMi = null;
        String strMing = "";
        try {
            byteMi = base64De.decodeBuffer(strMi);
            byteMing = getDesCode(byteMi);
            strMing = new String(byteMing, "UTF-8");
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            base64De = null;
            byteMing = null;
            byteMi = null;
        }
        return strMing;
    }

    /**
     * 加密以byte[]明文输入,byte[]密文输出
     * 
     * @param byteS
     * @return
     */
    private  byte[] getEncCode(byte[] byteS) {
        byte[] byteFina = null;
        Cipher cipher;
        try {
            cipher = Cipher.getInstance("DES");
            cipher.init(Cipher.ENCRYPT_MODE, key);
            byteFina = cipher.doFinal(byteS);
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            cipher = null;
        }
        return byteFina;
    }

    /**
     * 解密以byte[]密文输入,以byte[]明文输出
     * 
     * @param byteD
     * @return
     */
    private byte[] getDesCode(byte[] byteD) {
        Cipher cipher;
        byte[] byteFina = null;
        try {
            cipher = Cipher.getInstance("DES");
            cipher.init(Cipher.DECRYPT_MODE, this.key);
            byteFina = cipher.doFinal(byteD);
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            cipher = null;
        }
        return byteFina;
    }


}

3、解释 ，所以setKey时  用 //Linux 系统下  public void setKey2(String strKey) {}方法
  

 * SecureRandom 实现完全随操作系统本身的內部状态，除非调用方在调用 getInstance 方法，然后调用 setSeed 方法；
     * 该实现在 windows 上每次生成的 key 都相同，但是在 solaris 或部分 linux 系统上则不同。
     * 关于SecureRandom类的详细介绍，见 http://yangzb.iteye.com/blog/325264

参考：

http://blog.csdn.net/rj042/article/details/8196125

http://www.cnblogs.com/digdeep/p/5580244.html