SpringSecurity(安全)
Spring Security是针对Spring项目的安全框架,也是Spring Boot底层安全模块默认的技术选型,他可以实现强大的Web安全控制,对于安全控制,我们仅需要引入spring-boot-starter-security模块,进行少量的配置,即可实现强大的安全管理!
记住几个类:
- WebSecurityConfigurerAdapter:自定义Security策略
- AuthenticationManagerBuilder:自定义认证策略
- @EnableWebSecurity:开启WebSecurity模式
Spring Security的两个主要目标是 “认证” 和 “授权”(访问控制)。
“认证”(Authentication)
身份验证是关于验证您的凭据,如用户名/用户ID和密码,以验证您的身份。
身份验证通常通过用户名和密码完成,有时与身份验证因素结合使用。
“授权” (Authorization)
授权发生在系统成功验证您的身份后,最终会授予您访问资源(如信息,文件,数据库,资金,位置,几乎任何内容)的完全权限。
这个概念是通用的,而不是只在Spring Security 中存在。
实验环境搭建
-
新建一个项目
这里记得要选择thymeleaf
-
导入静态资源
-
创建路由RouterController跳转测试静态资源是否能够访问
@Controller
public class RouterController {
@RequestMapping({"/","/index"})
public String index(){
return "index";
}
@RequestMapping("/toLogin")
public String toLogin(){
return "views/login";
}
@RequestMapping("/level1/{id}")
public String level1(@PathVariable("id") int id){
return "views/level1/"+id;
}
@RequestMapping("/level2/{id}")
public String level2(@PathVariable("id") int id){
return "views/level2/"+id;
}
@RequestMapping("/level3/{id}")
public String level3(@PathVariable("id") int id){
return "views/level3/"+id;
}
}
-
运行项目进行测试
认证和授权
-
导入依赖
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
-
编写SecurityConfig
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
@Override
protected void configure(HttpSecurity http) throws Exception {
http.authorizeHttpRequests()
.antMatchers("/").permitAll()
.antMatchers("/level1/**").hasRole("vip1")
.antMatchers("/level2/**").hasRole("vip2")
.antMatchers("/level3/**").hasRole("vip3");
// /login
http.formLogin();
//防止网站攻击: get,post
http.csrf().disable();//关闭csrf功能,登出失败可能存在的原因
//注销,开启了注销功能,跳到首页
http.logout().logoutSuccessUrl("/");
}
//认证
//密码编码:PasswordEncoder
@Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
//这些数据正常应该从数据库中读
auth.inMemoryAuthentication().passwordEncoder(new BCryptPasswordEncoder())
.withUser("lzj").password(new BCryptPasswordEncoder().encode("123456")).roles("vip2","vip3")
.and()
.withUser("root").password(new BCryptPasswordEncoder().encode("123456")).roles("vip1","vip2","vip3")
.and()
.withUser("guest").password(new BCryptPasswordEncoder().encode("123456")).roles("vip1");
}
}
-
测试
注销和权限控制
-
导入依赖
<dependency>
<groupId>org.thymeleaf.extras</groupId>
<artifactId>thymeleaf-extras-springsecurity5</artifactId>
<version>3.0.4.RELEASE</version>
</dependency>
-
注入命名空间
xmlns:sec="http://www.thymeleaf.org/extras/spring-security"
-
修改登录和注销按钮
实现用户未登录时只显示登录,用户登录后显示用户名、角色和注销
<div class="right menu">
<div sec:authorize="!isAuthenticated()">
<a class="item" th:href="@{/toLogin}">
<i class="address card icon"></i> 登录
</a>
</div>
<div sec:authorize="isAuthenticated()">
<a class="item">
用户名:<span sec:authentication="name"></span>
角色:<span sec:authentication="authorities"></span>
</a>
</div>
<div sec:authorize="isAuthenticated()">
<a class="item" th:href="@{/logout}">
<i class="sign-out icon"></i> 注销
</a>
</div>
</div>
-
修改用户的权限显示
<div class="column" sec:authorize="hasRole('vip1')">
<div class="ui raised segment">
<div class="ui">
<div class="content">
<h5 class="content">Level 1</h5>
<hr>
<div><a th:href="@{/level1/1}"><i class="bullhorn icon"></i> Level-1-1</a></div>
<div><a th:href="@{/level1/2}"><i class="bullhorn icon"></i> Level-1-2</a></div>
<div><a th:href="@{/level1/3}"><i class="bullhorn icon"></i> Level-1-3</a></div>
</div>
</div>
</div>
</div>
<div class="column" sec:authorize="hasRole('vip2')">
<div class="ui raised segment">
<div class="ui">
<div class="content">
<h5 class="content">Level 2</h5>
<hr>
<div><a th:href="@{/level2/1}"><i class="bullhorn icon"></i> Level-2-1</a></div>
<div><a th:href="@{/level2/2}"><i class="bullhorn icon"></i> Level-2-2</a></div>
<div><a th:href="@{/level2/3}"><i class="bullhorn icon"></i> Level-2-3</a></div>
</div>
</div>
</div>
</div>
<div class="column" sec:authorize="hasRole('vip3')">
<div class="ui raised segment">
<div class="ui">
<div class="content">
<h5 class="content">Level 3</h5>
<hr>
<div><a th:href="@{/level3/1}"><i class="bullhorn icon"></i> Level-3-1</a></div>
<div><a th:href="@{/level3/2}"><i class="bullhorn icon"></i> Level-3-2</a></div>
<div><a th:href="@{/level3/3}"><i class="bullhorn icon"></i> Level-3-3</a></div>
</div>
</div>
</div>
</div>
-
测试
记住我和首页定制
可以使用我们自己的登录页登录
-
编写SecurityConfig
@EnableWebSecurity
public class SecurityConfig extends WebSecurityConfigurerAdapter {
@Override
protected void configure(HttpSecurity http) throws Exception {
http.authorizeHttpRequests()
.antMatchers("/").permitAll()
.antMatchers("/level1/**").hasRole("vip1")
.antMatchers("/level2/**").hasRole("vip2")
.antMatchers("/level3/**").hasRole("vip3");
// /login
//定制根页面,user为表单中username的name,pwd为表单中password的name
//loginProcessingUrl为表单跳转路径,若无这个,则跳转路径为toLogin
http.formLogin().loginPage("/toLogin").usernameParameter("user").passwordParameter("pwd").loginProcessingUrl("/login");
//防止网站攻击: get,post
http.csrf().disable();//关闭csrf功能,登出失败可能存在的原因
//注销,开启了注销功能,跳到首页
http.logout().logoutSuccessUrl("/");
//开启记住我功能 cookie 默认保存时间14天
//自定义接收前端参数,remember为表单中的名字
http.rememberMe().rememberMeParameter("remember");
}
//认证
//密码编码:PasswordEncoder
@Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
//这些数据正常应该从数据库中读
auth.inMemoryAuthentication().passwordEncoder(new BCryptPasswordEncoder())
.withUser("lzj").password(new BCryptPasswordEncoder().encode("123456")).roles("vip2","vip3")
.and()
.withUser("root").password(new BCryptPasswordEncoder().encode("123456")).roles("vip1","vip2","vip3")
.and()
.withUser("guest").password(new BCryptPasswordEncoder().encode("123456")).roles("vip1");
}
}
-
修改登录页面表单
<form th:action="@{/login}" method="post">
<div class="field">
<label>Username</label>
<div class="ui left icon input">
<input type="text" placeholder="Username" name="user">
<i class="user icon"></i>
</div>
</div>
<div class="field">
<label>Password</label>
<div class="ui left icon input">
<input type="password" name="pwd">
<i class="lock icon"></i>
</div>
</div>
<div class="field">
<input type="checkbox" name="remember">记住我
</div>
<input type="submit" class="ui blue submit button"/>
</form>
-
测试
input type=“password” name=“pwd”>
记住我
<input type="submit" class="ui blue submit button"/>
``` -
测试
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