目录前言数据加密方案数据加密细节AES加解密RSA公钥加密总结前言 在网络通信中，通信传输数据容易被截取或篡改，如果在传输用户隐私数据过程中，被不法分子截取或篡改，就可能导致用户受到伤害，比如被诈 骗，所以对
If i use two database, i have to start to transaction? Is this correct, or this code is wrong? If i make a mistake in the second query, then call rollback(), but unfortunately won\'t roll back the fir
加载中,请稍侯......