fengketrade/doc/UrlMain跳转链接解密可参考此demo2.java

package com.example.filedemo.util.fuwufang;

import com.example.filedemo.util.RSAUtil;
import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;

public class UrlMain {
    public static void main(String[] args) throws Exception {
        String msg = "BGCOLOR=&userid=YSM202111170063936&mobile=18242028306&cityid=330100&userCityId=330100&orderid=&PLATFLOWNO=0000A2UNK1639016304462982&openid=&lgt=113.3295774824442&ltt=23.12339638654285&Usr_Name=&USERID=YSM202111170063936&MOBILE=18242028306&CITYID=330100&USERCITYID=330100&ORDERID=&OPENID=&LGT=113.3295774824442&LTT=23.12339638654285";

        //String enc_msg = "SDB0dllqYmxFS2xHRmlqa1ZaOFk0OHBXY0I5TitoREdJaVB3K1pjM2M3dy9jek4zN016ZUoxZENTNTVLWVFFV3VSYzlYOVlXRkpBcQpWRUgwaDJUMG04V2lmNHJyS3krdG5QUDJHalhEQlNma21oR3JrV0lsbFRibC9vbWJONGxqeVk1TXZQWjVWc2t5N2ZVRlZTYlNlYjIzCnJ5cFN4dTRNSDUrTjFRTU5NVFE9Cg%3D%3D";
        // 公钥
        String publicKey = "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQClMNB2rs4PMyxHdV+HeISWBbe55WQkmSYQQvFq8M4MMczhYihhp1Z9p723wD8cv9m/PQQcQZuNIehGGIIbZnMZFkqwDYUODH0DF8N5o7BiUhw/XUr3nl49/hsjlE6L7k/7jYzxZ+r3CXhz7qVXZNW6tD2RM+AI4qomQr0p1VNxhQIDAQAB";
        // 私钥
        String privateKey = "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";

        // 公钥加密得到密文并使用base64处理
        String enc_msg = RSAUtil.encrypt(msg, publicKey);
        //enc_msg = "";
        //enc_msg = "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";

        BASE64Encoder encoder = new BASE64Encoder();
        enc_msg = encoder.encode(enc_msg.getBytes("UTF-8"));
        enc_msg = enc_msg.replaceAll("\r\n", "").replaceAll("\r", "").replaceAll("\n", "");


        System.out.println("公钥加密得到密文并使用base64处理:");
        //enc_msg = "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";
        System.out.println(enc_msg);

        //enc_msg = "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%3D";
        //enc_msg = "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";
        // base64逆处理并用私钥解密
        BASE64Decoder decoder = new BASE64Decoder();
        enc_msg = new String(decoder.decodeBuffer(enc_msg),"UTF-8");
        String dec_msg = RSAUtil.decrypt(enc_msg, privateKey);

        System.out.println("base64逆处理并用私钥解密:");
        System.out.println(dec_msg);



    }
}