Spring security login dynamically

Question

I have a file bean:

<beans:beans xmlns="http://www.springframework.org/schema/security"
xmlns:beans="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
      http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
      http://www.springframework.org/schema/security
      http://www.springframework.org/schema/security/spring-security-3.1.xsd">

<http auto-config="true">
  <intercept-url pattern="/secured/*" access="ROLE_USER" />
    <form-login login-processing-url="/login" login-page="/loginPage"
        username-parameter="username" password-parameter="password"
        default-target-url="/secured/mypage" authentication-failure-url="/loginPage?auth=fail" />
    <logout logout-url="/logout" logout-success-url="/logoutPage" />        
</http>

<authentication-manager>
    <authentication-provider>
        <user-service>
            <user name="srccodes" password="password" authorities="ROLE_USER" />
        </user-service>
    </authentication-provider>
</authentication-manager>

I have a login page I check login password from extern database, the login is différent of "srccodes" password="password". How can I add user dynamycally and affect to him for example ROLE_USER ?

Answer 1

Check this example According to your example you store password and users details in xml! It will get user credintals from database tabke
1. you have to change setup of authentification manager

<authentication-manager>
  <authentication-provider>
    <jdbc-user-service data-source-ref="dataSource"
      users-by-username-query=
        "select username,password, enabled from users where username=?"
      authorities-by-username-query=
        "select username, role from user_roles where username =?  " />
  </authentication-provider>
</authentication-manager>

And setup connection to Database

<bean id="dataSource"
    class="org.springframework.jdbc.datasource.DriverManagerDataSource">

    <property name="driverClassName" value="com.mysql.jdbc.Driver" />
    <property name="url" value="jdbc:mysql://localhost:3306/test" />
    <property name="username" value="root" />
    <property name="password" value="password" />
</bean>

2. if you want to create user you have to insert new record into

   users table and user_roles table