Spring Security的三个configure方法
参考自:java – HttpSecurity,WebSecurity和AuthenticationManagerBuilder
Spring Security通过继承WebSecurityConfigurationAdapter这个类,可以选择实现该类中的三个重载的configure方法,虽然可以下载代码文档,但是稍微有点……
看看这三个方法:
void configure(AuthenticationManagerBuilder auth) throws Exception void configure(HttpSecurity http) throws Exception void configure(WebSecurity web) throws Exception
再来看段重写的代码:
@Configuration @EnableWebSecurity @EnableGlobalMethodSecurity(prePostEnabled = true) public class WebSecurityConfig extends WebSecurityConfigurerAdapter { @Autowired private CustomUserDetailsService customUserDetailsService; // 该类实现UserDetailsServer接口,重写loadUserByUsername方法,从数据库获取用户名,密码,角色 @Override protected void configure(AuthenticationManagerBuilder auth) throws Exception { auth.userDetailsService(customUserDetailsService).passwordEncoder(new PasswordEncoder() { @Override public String encode(CharSequence charSequence) { return charSequence.toString(); } @Override public boolean matches(CharSequence charSequence, String s) { return s.equals(charSequence.toString()); } }); } @Override protected void configure(HttpSecurity http) throws Exception { http.authorizeRequests() .anyRequest().authenticated() .and() .formLogin().loginPage("/login") .defaultSuccessUrl("/").permitAll() .and() .logout().permitAll(); http.csrf().disable(); } @Override public void configure(WebSecurity web) throws Exception { web.ignoring().antMatchers("/css/**", "/js/**"); } }
configure(AuthenticationManagerBuilder)用于通过允许AuthenticationProvider容易地添加来建立认证机制。
也就是说用来记录账号,密码,角色信息。
下方代码不从数据库读取,直接手动赋予
AuthenticationManagerBuilder allows public void configure(AuthenticationManagerBuilder auth) { auth .inMemoryAuthentication() .withUser("user") .password("password") .roles("USER") .and() .withUser("admin") .password("password") .roles("ADMIN","USER"); }
configure(HttpSecurity)允许基于选择匹配在资源级配置基于网络的安全性。以下示例将以/ admin /开头的网址限制为具有ADMIN角色的用户,并声明任何其他网址需要成功验证。
也就是对角色的权限——所能访问的路径做出限制
protected void configure(HttpSecurity http) throws Exception { http .authorizeUrls() .antMatchers("/admin/**").hasRole("ADMIN") .anyRequest().authenticated() }
configure(WebSecurity)用于影响全局安全性(配置资源,设置调试模式,通过实现自定义防火墙定义拒绝请求)的配置设置。
一般用于配置全局的某些通用事物,例如静态资源等
public void configure(WebSecurity web) throws Exception { web .ignoring() .antMatchers("/resources/**"); }