SpringBoot使用Spring Security实现登录注销功能

1.首先看下我的项目结构

我们逐个讲解

/**
 * 用户登录配置类
 * @author Administrator
 *
 */
public class AdminUserDateils implements UserDetails {

	private static final long serialVersionUID = -1546619839676530441L;

	 private transient YCAdmin yCAdmin;

	 public AdminUserDateils() {
	}

	 public AdminUserDateils(YCAdmin yCAdmin) {
	  if (yCAdmin != null) {
	   this.yCAdmin = yCAdmin;
	  }
	 }

	public YCAdmin getyCAdmin() {
			return yCAdmin;
		}

		public void setyCAdmin(YCAdmin yCAdmin) {
			this.yCAdmin = yCAdmin;
		}

	@Override
	public Collection<? extends GrantedAuthority> getAuthorities() {
		 Collection<GrantedAuthority> authorities = new ArrayList<>();
	  SimpleGrantedAuthority authority = new SimpleGrantedAuthority("admin");
	  authorities.add(authority);
	  return authorities;
	}
	//用户名密码
	@Override
	public String getPassword() {

		 return yCAdmin.getAdminPassword();
	}
	//账号
	@Override
	public String getUsername() {

		return yCAdmin.getAdminAccount();
	}

	@Override
	public boolean isAccountNonExpired() {

		return true;
	}

	@Override
	public boolean isAccountNonLocked() {

		return true;
	}

	@Override
	public boolean isCredentialsNonExpired() {

		return true;
	}

	@Override
	public boolean isEnabled() {

		return true;
	}

}

首先以上AdminUserDateils类是配置用户登录成功后，来存储用户登录的信息

/**
 * Spring-Security
 * @author Administrator
 *
 */
@Service
public class AdminCustomerDetailsService implements UserDetailsService{

	@Autowired
	private YCAdminMapper yCAdminMapper;

	@Override
	public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
		YCAdmin ycAdmin= yCAdminMapper.selectYCAdminByAccount(username);
		if(ycAdmin==null) {

			throw new UsernameNotFoundException("未找到该用户！！");
		}
		//配置的AdminUserDateils
		AdminUserDateils adminUserDateils = new AdminUserDateils(ycAdmin);
		return adminUserDateils;
	}
}

以上AdminCustomerDetailsService是根据查找用户名的，需要实现UserDetailsService接口的loadUserByUsername的方法也就是会找用户名，这个根据mapper层，也就是数据库查找，返回只也就是刚才配置的AdminUserDateils类

public class YhPasswordEncoder implements PasswordEncoder{

	@Override
	public String encode(CharSequence rawPassword) {
		return Des3.encrypt(rawPassword.toString());
	}

	@Override
	public boolean matches(CharSequence rawPassword, String encodedPassword) {
		// TODO Auto-generated method stub
		return encode(rawPassword).equals(encodedPassword);
	}

}

以上YhPasswordEncoder 需要继承是我们PasswordEncoder配置用户密码加密的，这里的加密可以按照自己业务需求来使用加密，按照这样换一种加密类型就可以了。

public class AdminSecurityConfiguration {

	@Configuration
	@Order(2)
	@EnableWebSecurity
	public static class ClientSecurityConfig extends WebSecurityConfigurerAdapter {
		@Autowired
		private AdminCustomerDetailsService adminCustomerDetailsService;

		@Value("${yunhui.admin.urlContext:/houtai}")
		private String adminUrlContext;

		@Value("${yunhui.admin.noLoginUrls:}")
		private String noLoginUrls;

		@Override
		protected void configure(HttpSecurity http) throws Exception {

			//循环获取用户不需要验证url（这里是记录在yml）
			List<String> clientNoLoginUrls = new ArrayList<String>();
			if (!noLoginUrls.isEmpty()) {
				for (String s : noLoginUrls.split(",")) {
					clientNoLoginUrls.add(adminUrlContext + s);
				}
			}
			http.
					//需要验证登录的url
					antMatcher(adminUrlContext + "/**").authorizeRequests()
					//不需登录验证的url
					.antMatchers(clientNoLoginUrls.toArray(new String[0])).permitAll()
					.anyRequest().authenticated().and()
					//开启表单验证
					.formLogin().
					//验证登录的url
					loginProcessingUrl("/houtai/login")
					//登录的页面
					.loginPage("/houtai/login")
					//登录成功后跳转
					.defaultSuccessUrl("/houtai").permitAll().and()
					//注销登录的url
					.logout().logoutUrl("/houtai/loginout")
					//注销之后跳转的页面
					.logoutSuccessUrl("/houtai")
					.and().rememberMe().and().csrf().disable();;

		}

		@Override
		public void configure(AuthenticationManagerBuilder auth) throws Exception {
			//需要哪个service，和验证密码的方式，刚才我们都配置了
			auth.userDetailsService(adminCustomerDetailsService).passwordEncoder(new YhPasswordEncoder());
		}
}

最后就是配置首先开启
@Configuration
@EnableWebSecurity
的注解

一个是我们刚才配置的service
其他两个两个变量是在配置文件配置的

最后配置我们表单验证就可以了input的name必须是username和password，除非重新配置了，
action="/houtai/login"就是直接这样就可以实现登录了

如果有HttpSecurity配置的细节问题可以提问

补充可以自己配置登录成功和失败类

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