Java URL暗号化および復号化ツール

序章：

        URL で使用できる Java URL 暗号化および復号化ツール

目次

手順：

参照依存関係:

暗号化および復号化ツール:

---

コード例:

手順：

public static void main(String[] args) throws UnsupportedEncodingException {
		// 秘钥
		String secretKey = "HXJK#2022@(hxjk)";

		String strEncryption = "/te/teLoanDetail/2097";
		String strDecryption = "am81elBVSjYzMVkxR252RzNEZkNqMG5HNnhuTmRBaGU=";

		// 加密
		String s1 = Des3Util.encode3Des(secretKey, strEncryption);
		String encodeToString = java.util.Base64.getUrlEncoder().encodeToString(s1.getBytes());
		System.out.println("----->s1:" + encodeToString);//am81elBVSjYzMVkxR252RzNEZkNqMG5HNnhuTmRBaGU=

		// 解密
		String resultEncryption = new String(java.util.Base64.getUrlDecoder().decode(strDecryption), "UTF-8");
		String s2 = Des3Util.decode3Des(secretKey, resultEncryption);
		System.out.println("----->s2:" + s2);// /te/teLoanDetail/2097
}

参照依存関係:

<dependency>
    <groupId>commons-codec</groupId>
	<artifactId>commons-codec</artifactId>
	<version>1.14</version>
</dependency>

暗号化および復号化ツール:

package com.fssc.test;

import java.io.UnsupportedEncodingException;

import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;

import org.apache.commons.codec.binary.Base64;
import org.apache.commons.codec.digest.DigestUtils;

public class Des3Util {

	/**
	 * 转换成十六进制字符串
	 */
	public static byte[] hex(String key) {
		String f = DigestUtils.md5Hex(key);
		byte[] bkeys = new String(f).getBytes();
		byte[] enk = new byte[24];
		for (int i = 0; i < 24; i++) {
			enk[i] = bkeys[i];
		}
		return enk;
	}

	/**
	 * 3DES加密
	 * 
	 * @param key    密钥，24位
	 * @param srcStr 将加密的字符串
	 */
	public static String encode3Des(String key, String srcStr) {
		byte[] keybyte = hex(key);
		byte[] src = srcStr.getBytes();
		try {
			// 生成密钥
			SecretKey deskey = new SecretKeySpec(keybyte, "DESede");
			// 加密
			Cipher c1 = Cipher.getInstance("DESede");
			c1.init(Cipher.ENCRYPT_MODE, deskey);

			String pwd = Base64.encodeBase64String(c1.doFinal(src));
			return pwd;
		} catch (java.security.NoSuchAlgorithmException e1) {
			e1.printStackTrace();
		} catch (javax.crypto.NoSuchPaddingException e2) {
			e2.printStackTrace();
		} catch (Exception e3) {
			e3.printStackTrace();
		}
		return null;
	}

	/**
	 * 3DES解密
	 * 
	 * @param key    加密密钥，长度为24字节
	 * @param desStr 解密后的字符串
	 */
	public static String decode3Des(String key, String desStr) {
		Base64 base64 = new Base64();
		byte[] keybyte = hex(key);
		byte[] src = base64.decode(desStr);

		try {
			// 生成密钥
			SecretKey deskey = new SecretKeySpec(keybyte, "DESede");
			// 解密
			Cipher c1 = Cipher.getInstance("DESede");
			c1.init(Cipher.DECRYPT_MODE, deskey);
			String pwd = new String(c1.doFinal(src));
			return pwd;
		} catch (java.security.NoSuchAlgorithmException e1) {
			e1.printStackTrace();
		} catch (javax.crypto.NoSuchPaddingException e2) {
			e2.printStackTrace();
		} catch (Exception e3) {
			e3.printStackTrace();
		}
		return null;
	}

}