How to deal with BLDB type with jstl

Question

table user(
user_password TINYBLOB,
login.jsp:
<sql:query var="users" dataSoure="jdbc/datasource">
select user_password from user
</sql:query>
<c:forEach var="user" items="users">
user_password ${user.user_password}
</c:forEach>
When user_password is 4d28dc5a25046655127700d9a8563425
this result is:"user_password [B@300ca7"
encrytedpassword = 4d28dc5a25046655127700d9a8563425
<c:when test="${user.user_password==encrytedpassword}">
that's not equal
Please help me How can to do with this
Thank you very much!

Answer 1

Saved the password as BLOB type is for the security of login system, the password saved in MySQL is not the true password but use algorithm "md5" to encrypt "user_id-password" e.g. "5-java" "java" is the password you need to input and "5" is the user_id got from the database then got the encrypted password which will saved in the database as user_password, the password which you input will never got from anybody(admin include) except the user.