how to implement a authentication with spring boot security? - spring-boot

Question

i am using spring boot. i want to post a username and password params to login, and if login success then return a token. after, i will use the token to judge login status. here is my security configure code. but i don't konw where to write the login authentication logic code.
SecurityConfig.java
#Configuration
#EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
#Override
protected void configure(HttpSecurity http) throws Exception {
http.authorizeRequests()
.anyRequest()
.fullyAuthenticated()
.and()
.formLogin()
.loginPage("/user/unlogin")
.permitAll();
}
#Override
public void configure(WebSecurity web) throws Exception {
web.ignoring().antMatchers("/user/login")
.antMatchers("/user/logout")
.antMatchers("/user/register");
}
}
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thank you !

Answer 1

There's always more than one way to do something with Spring. There is a happy path (probably) with Spring Boot, and you seem to have started on it. Note though, if you want Boot to provide some default behaviour, then don't use #EnableWebSecurity (as advised in the user guide). The web-secure sample has an example you can follow.
If you use formLogin() the default login URL is /login (not /user/login), so you should be able to post the username and password to that endpoint to authenticate. Don't add /login to the unsecured paths using web.ignoring() or Spring Security will never process it. When you post to /login you get back a JSESSIONID cookie. That's your authentication token, and it expires when the session expires in the server (30min by default, but easily configurable). Include it in future requests for secure resources - some HTTP clients will even do that for you (like a browser does).