import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
/**
* SHA256 摘要算法工具类
* @author Administrator
*
*/
public class SHA256Util {
/**
* 利用java原生的摘要实现SHA256加密
* @param str 加密后的报文
* @return
*/
public static String getSHA256StrJava(String str){
MessageDigest messageDigest;
String encodeStr = "";
try {
messageDigest = MessageDigest.getInstance("SHA-256");
messageDigest.update(str.getBytes("UTF-8"));
encodeStr = byte2Hex(messageDigest.digest());
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
return encodeStr;
}
/**
* 将byte转为16进制
* @param bytes
* @return
*/
private static String byte2Hex(byte[] bytes){
StringBuffer stringBuffer = new StringBuffer();
String temp = null;
for (int i=0;i<bytes.length;i++){
temp = Integer.toHexString(bytes[i] & 0xFF);
if (temp.length()==1){
//1得到一位的进行补0操作
stringBuffer.append("0");
}
stringBuffer.append(temp);
}
return stringBuffer.toString();
}
}
文末小福利免费视频资源网站(搜索猴):www.sousuohou.com
电影公众号:https://m.veikee.cn/
来源:https://www.cnblogs.com/vicF/p/7461804.html