135 lines
4.4 KiB
Java
135 lines
4.4 KiB
Java
package com.zhgd.xmgl.util;
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import com.zhgd.xmgl.entity.vo.NanchangHousingBean;
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import lombok.extern.slf4j.Slf4j;
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import org.apache.commons.codec.binary.Base64;
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import org.apache.commons.lang.StringUtils;
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import org.bouncycastle.jce.provider.BouncyCastleProvider;
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import javax.crypto.Cipher;
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import javax.crypto.spec.IvParameterSpec;
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import javax.crypto.spec.SecretKeySpec;
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import javax.validation.constraints.NotNull;
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import java.io.UnsupportedEncodingException;
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import java.net.URLEncoder;
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import java.security.Security;
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import java.security.spec.AlgorithmParameterSpec;
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import java.util.*;
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/**
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* @program: wisdomSite
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* @description: 南昌住建局工具类
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* @author: Mr.Peng
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* @create: 2021-07-05 17:10
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**/
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@Slf4j
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public class NanchangHousingUtils {
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private static final String CHARSET_NAME = "UTF-8";
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private static final String AES_NAME = "AES";
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public static final String ALGORITHM = "AES/CBC/PKCS7Padding";
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static {
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Security.addProvider(new BouncyCastleProvider());
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}
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/**
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* 加密
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*
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* @param content
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* @param key
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* @return
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*/
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public static String encrypt(@NotNull String content, @NotNull String key) {
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byte[] result = null;
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try {
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Cipher cipher = Cipher.getInstance(ALGORITHM);
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SecretKeySpec keySpec = new SecretKeySpec(key.getBytes(CHARSET_NAME), AES_NAME);
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AlgorithmParameterSpec paramSpec = new IvParameterSpec(
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subBytes(key.getBytes(CHARSET_NAME)));
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cipher.init(Cipher.ENCRYPT_MODE, keySpec, paramSpec);
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result = cipher.doFinal(content.getBytes(CHARSET_NAME));
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} catch (Exception ex) {
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ex.printStackTrace();
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}
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return Base64.encodeBase64String(result);
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}
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/**
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* 解密
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*
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* @param content
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* @param key
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* @return
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*/
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public static String decrypt(@NotNull String content, @NotNull String key) {
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try {
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Cipher cipher = Cipher.getInstance(ALGORITHM);
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SecretKeySpec keySpec = new SecretKeySpec(key.getBytes(CHARSET_NAME), AES_NAME);
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AlgorithmParameterSpec paramSpec = new IvParameterSpec(
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subBytes(key.getBytes(CHARSET_NAME)));
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cipher.init(Cipher.DECRYPT_MODE, keySpec, paramSpec);
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return new String(cipher.doFinal(Base64.decodeBase64(content)), CHARSET_NAME);
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} catch (Exception ex) {
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ex.printStackTrace();
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}
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return StringUtils.EMPTY;
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}
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/**
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* 从一个byte[]数组中截取一部分
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*
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* @param src
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* @return
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*/
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public static byte[] subBytes(byte[] src) {
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if (src.length < 16) {
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throw new RuntimeException("无法从Key中获取偏移量!");
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}
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byte[] bs = new byte[16];
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for (int i = 0; i < 16; i++) {
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bs[i] = src[i];
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}
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return bs;
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}
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public static String getSing(NanchangHousingBean bean) {
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//listMap示例
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List<Map> listMap = new ArrayList<>();
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/*Map<String, String> testMap = new HashMap<>(16);
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testMap.put("name", "张三");
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testMap.put("code", "123456");*/
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listMap.add(bean.getData());
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//加密秘钥
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String secret = bean.getSecret();
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String appKey = bean.getAppKey();
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//拼装字符串
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StringBuilder sb = new StringBuilder();
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TreeMap<String, String> map = new TreeMap<String, String>(listMap.get(0));
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for (Map.Entry<String, String> e : map.entrySet()) {
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if (StringUtils.isNotBlank(e.getValue()) && !"headImage".equals(e.getKey()) && !"image".equals(e.getKey())) {
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sb.append(e.getKey()).append("=").append(e.getValue()).append("&");
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}
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}
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sb.append("appKey=").append(appKey);
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//生成签名
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String signCheck = NanchangHousingUtils.encrypt(sb.toString(), secret).toUpperCase();
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try {
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//转义
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signCheck = URLEncoder.encode(signCheck, "UTF-8")
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.replaceAll("\\+", "%20")
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.replaceAll("\\!", "%21")
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.replaceAll("\\'", "%27")
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.replaceAll("\\(", "%28")
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.replaceAll("\\)", "%29")
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.replaceAll("\\~", "%7E");
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} catch (UnsupportedEncodingException e) {
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log.error("error：", e);
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}
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return signCheck;
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}
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}
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