关于单点登录第一天接触之我见

package com.zx.ps.aes;

import java.net.URLEncoder;
import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;
import org.apache.commons.codec.binary.Base64;
/**
 * @author : ckx
 * @date : 2016-12-5 下午9:32:52
 */ 
public class AESUtil {
 
    // 加密
    public static String Encrypt(String sSrc, String sKey) throws Exception {
        if (sKey == null) {
            System.out.print("Key为空null");
            return null;
        }
        // 判断Key是否为16位
        if (sKey.length() != 16) {
            System.out.print("Key长度不是16位");
            return null;
        }
        byte[] raw = sKey.getBytes("utf-8");
        SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
        Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");//"算法/模式/补码方式"
        cipher.init(Cipher.ENCRYPT_MODE, skeySpec);
        byte[] encrypted = cipher.doFinal(sSrc.getBytes("utf-8"));
        return new Base64().encodeToString(encrypted);//此处使用BASE64做转码功能，同时能起到2次加密的作用。
    }
 
    // 解密
    public static String Decrypt(String sSrc, String sKey) throws Exception {
        try {
            // 判断Key是否正确
            if (sKey == null) {
                System.out.print("Key为空null");
                return null;
            }
            // 判断Key是否为16位
            if (sKey.length() != 16) {
                System.out.print("Key长度不是16位");
                return null;
            }
            byte[] raw = sKey.getBytes("utf-8");
            SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
            Cipher cipher = Cipher.getInstance("AES/ECB/PKCS5Padding");
            cipher.init(Cipher.DECRYPT_MODE, skeySpec);
            byte[] encrypted1 = new Base64().decode(sSrc);//先用base64解密
            try {
                byte[] original = cipher.doFinal(encrypted1);
                String originalString = new String(original,"utf-8");
                return originalString;
            } catch (Exception e) {
                System.out.println(e.toString());
                return null;
            }
        } catch (Exception ex) {
            System.out.println(ex.toString());
            return null;
        }
    }
 
    public static void main(String[] args) throws Exception {
        /*
         * 此处使用AES-128-ECB加密模式，key需要为16位。
         */
       // String cKey = "abcdefg123456789";
        // 需要加密的字串
       // String cSrc = "www.FDSA.soEEEEE";
        String cKey = "1234567891234567";
        String cSrc = "20161201121212szzx";
        String url=URLEncoder.encode("DTB90z5MWjtt7ojCU+zvJbqnuke2KPAmffGPW2q8kFA=","UTF-8"); 
        System.out.println(url);
        System.out.println(cSrc);
        // 加密
        String enString = AESUtil.Encrypt(cSrc, cKey);
        System.out.println("加密后的字串是：" + enString);
        // 解密
        String DeString = AESUtil.Decrypt(enString, cKey);
        System.out.println("解密后的字串是：" + DeString);

　　　　　　enString=URLEncoder.encode(enString);
　　　　　　System.out.println("URL加密："+enString);

    }
}

String cKey = "1234567891234567";
            String cSrc = "20161205193612zhongjunhua";
            String ticket=AESUtil.Encrypt(cSrc, cKey);//调用加密方法对用户加密
            System.err.println("###########"+ticket);
　　　　　　　ticket=URLEncoder.encode(ticket);
            System.err.println("ticket1"+ticket);

            dmp.put("zxssoticket", ticket);