微信开发-服务器验证-hash加密

骑猪看日落 2024-04-17 05:56 64阅读 0赞

package cn.sharing.www.controller;
    
    import cn.sharing.www.util.HashUtil;
    import cn.sharing.www.util.MD5Util;
    import org.springframework.web.bind.annotation.GetMapping;
    import org.springframework.web.bind.annotation.RequestParam;
    import org.springframework.web.bind.annotation.RestController;
    import sun.security.provider.MD5;
    
    import javax.servlet.http.HttpServletRequest;
    import java.util.*;
    
    @RestController
    public class WechatController {
    
        private static final String TOKEN = "shenzhenchuanyue";
    
        @GetMapping("/wx")
        public String checkServer(
                @RequestParam(name = "signature") String signature,
                @RequestParam(name = "echostr") String echostr,
                @RequestParam(name = "timestamp") String timestamp,
                @RequestParam(name = "nonce") String nonce, HttpServletRequest request) {
    
            List<String> list = new ArrayList<>();
            list.add(TOKEN);
            list.add(timestamp);
            list.add(nonce);
    
            Collections.sort(list);
    
            StringBuilder builder = new StringBuilder();
            list.forEach((str)-> builder.append(str));
    
            String hashCode = HashUtil.hash(builder.toString(),"sha-1");
    
            System.out.println("hashCode = " + hashCode);
            System.out.println("signature = " + signature);
    
            return Objects.equals(hashCode,signature)? echostr: null;
        }
    }

package cn.sharing.www.util;
    
    import java.io.File;
    import java.io.FileInputStream;
    import java.io.IOException;
    import java.io.UnsupportedEncodingException;
    import java.security.MessageDigest;
    import java.security.NoSuchAlgorithmException;
    
    public class HashUtil {
        /**
         * 计算字符串的hash值
         * @param string    明文
         * @param algorithm 算法名
         * @return          字符串的hash值
         */
        public static String hash(String string, String algorithm) {
            if (string.isEmpty()) {
                return "";
            }
            MessageDigest hash = null;
            try {
                hash = MessageDigest.getInstance(algorithm);
                byte[] bytes = hash.digest(string.getBytes("UTF-8"));
                String result = "";
                for (byte b : bytes) {
                    String temp = Integer.toHexString(b & 0xff);
                    if (temp.length() == 1) {
                        temp = "0" + temp;
                    }
                    result += temp;
                }
                return result;
            } catch (NoSuchAlgorithmException e) {
                e.printStackTrace();
            } catch (UnsupportedEncodingException e) {
                e.printStackTrace();
            }
            return "";
        }
    
        /**
         * 计算文件的hash值
         * @param file      文件File
         * @param algorithm 算法名
         * @return          文件的hash值
         */
        public static String hash(File file, String algorithm) {
            if (file == null || !file.isFile() || !file.exists()) {
                return "";
            }
            FileInputStream in = null;
            String result = "";
            byte buffer[] = new byte[0124];
            int len;
            try {
                MessageDigest hash = MessageDigest.getInstance(algorithm);
                in = new FileInputStream(file);
                while ((len = in.read(buffer)) != -1) {
                    hash.update(buffer, 0, len);
                }
                byte[] bytes = hash.digest();
    
                for (byte b : bytes) {
                    String temp = Integer.toHexString(b & 0xff);
                    if (temp.length() == 1) {
                        temp = "0" + temp;
                    }
                    result += temp;
                }
            } catch (Exception e) {
                e.printStackTrace();
            }finally {
                if(null!=in){
                    try {
                        in.close();
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
            }
            return result;
        }
    }

注：加密工具类复制自某个博客的，忘记链接了。