springsecurity轻松实现角色权限的示例代码

问题：

如何在springboot项目中使用springsecurity去实现角色权限管理呢？本文将尽可能简单的一步步实现对接口的角色权限管理。

项目框架：

sql:

user表：

CREATE TABLE `user` (
 `Id` int NOT NULL AUTO_INCREMENT,
 `UserName` varchar(255) NOT NULL,
 `CreatedDT` datetime DEFAULT NULL,
 `Age` int DEFAULT NULL,
 `Gender` int DEFAULT NULL,
 `Password` varchar(255) NOT NULL,
 PRIMARY KEY (`Id`)
) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8;

role表：

CREATE TABLE `role` (
 `Id` int NOT NULL AUTO_INCREMENT,
 `UserId` int DEFAULT NULL,
 `Role` varchar(255) DEFAULT NULL,
 `CreatedDT` datetime DEFAULT NULL,
 PRIMARY KEY (`Id`)
) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8;

maven：

在pom.xml中加入

   <dependency>
      <groupId>org.projectlombok</groupId>
      <artifactId>lombok</artifactId>
      <optional>true</optional>
    </dependency>
    <!--SpringSecurity依赖配置-->
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-security</artifactId>
    </dependency>
    <!--Hutool Java工具包-->
    <dependency>
      <groupId>cn.hutool</groupId>
      <artifactId>hutool-all</artifactId>
      <version>4.5.7</version>
    </dependency>

model:

实体类User要实现springsecurity的基本接口UserDetails,UserDetails里继承了Serializable，不用担心序列化

@Data 
public class User implements UserDetails { 
​ 
 public User() { 
 } 
​ 
 private static final long serialVersionUID = 1L; 
  
 private Integer id; 
​ 
 private String userName; 
​ 
 private Date createdDT; 
​ 
 private Integer age; 
​ 
 private Integer gender; 
​ 
 private String passWord; 
​ 
 private String role; 
​ 
 private List<GrantedAuthority> authorities; 
​ 
 public User(String userName, String passWord, List<GrantedAuthority> authorities) { 
 this.userName = userName; 
 this.passWord = passWord; 
 this.authorities = authorities; 
 } 
​ 
 @Override 
 public Collection<? extends GrantedAuthority> getAuthorities() { 
 return authorities; 
 } 
​ 
 @Override 
 public String getPassword() { 
 return this.passWord; 
 } 
​ 
 @Override 
 public String getUsername() { 
 return this.userName; 
 } 
​ 
 @Override 
 public boolean isAccountNonExpired() { 
 return true; 
 } 
​ 
 @Override 
 public boolean isAccountNonLocked() { 
 return true; 
 } 
​ 
 @Override 
 public boolean isCredentialsNonExpired() { 
 return true; 
 } 
​ 
 @Override 
 public boolean isEnabled() { 
 return true; 
 } 
} 

实体类role:

@Data 
public class Role implements Serializable { 
 private Integer id; 
​ 
 private String role; 
​ 
 private Date createdDT; 
​ 
 private Integer userId; 
} 

mapper:

@Mapper 
public interface UserMapper{ 
 User selectOneByName(User user); 
}

service:

public interface UserService{ 
 User selectOneByName(User user) throws ServiceException; 
}

serviceImpl:

@Service 
public class UserServiceImpl implements UserService { 
 @Autowired 
 private UserMapper mapper; 
​ 
 @Override 
 public User selectOneByName(User user) throws ServiceException { 
 return mapper.selectOneByName(user); 
 } 
}

mapper.xml:

<?xml version="1.0" encoding="UTF-8"?> 
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> 
<mapper namespace="com.pzh.hyh.demo.mapper.UserMapper"><!--  mapper相对路径--> 
 <resultMap id="BaseResultMap" type="com.pzh.hyh.demo.model.User"><!--  model相对路径--> 
 <result column="Id" jdbcType="INTEGER" property="id"/> 
 <result column="UserName" jdbcType="VARCHAR" property="userName"/> 
 <result column="CreatedDT" jdbcType="TIMESTAMP" propert="createdDT"/> 
 <result column="Age" jdbcType="INTEGER" property="age"/> 
 <result column="Gender" jdbcType="INTEGER" property="gender"/> 
 <result column="Password" jdbcType="VARCHAR" property="passWord"/> 
 </resultMap> 
​ 
 <sql id="Base_Column_List"> 
 Id, UserName, CreatedDT, Age, Gender,Password 
 </sql> 
  
 <select id="selectOneByName" parameterType="com.pzh.hyh.demo.model.User" resultMap="BaseResultMap"><!--  model相对路径--> 
 SELECT u.*,r.role FROM `user` u LEFT JOIN role r on u.Id = r.UserId 
 where u.UserName = #{userName,jdbcType=VARCHAR} 
 </select> 
​ 
</mapper> 

config:

首先实现UserDetailsService类。自定义获取用户信息和角色信息。

@Component 
public class CustomUserDetailsService implements UserDetailsService { 
 @Autowired 
 private UserService userService; 
​ 
 @Autowired 
 private HttpServletRequest request; 
​ 
 @Override 
 public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException { 
 // 通过用户名从数据库获取用户信息 
 User user = userService.selectOneByName(new User(){ 
 { 
 setUserName(username); 
 } 
 }); 
 if (user == null) { 
 throw new UsernameNotFoundException("用户不存在"); 
 } 
​ 
 HttpSession session = request.getSession(); 
 session.setAttribute(session.getId(),user); 
​ 
 // 得到用户角色 
 String role = user.getRole(); 
​ 
 // 角色集合 
 List<GrantedAuthority> authorities = new ArrayList<>(); 
 // 角色必须以`ROLE_`开头，数据库中没有，则在这里加 
 authorities.add(new SimpleGrantedAuthority("ROLE_" + role)); 
​ 
 return new User( 
 user.getUsername(), 
 user.getPassword(), 
 authorities 
 ); 
 } 
}

自定义错误提示

@Component 
public class MyAccessDeniedHandler implements AccessDeniedHandler { 
 @Override 
 public void handle(HttpServletRequest request, HttpServletResponse response, AccessDeniedException accessDeniedException) throws IOException, ServletException { 
 response.setCharacterEncoding("UTF-8"); 
 response.setContentType("application/json"); 
 response.getWriter().println("{'code':'403','message':'没有访问权限'}"); 
 response.getWriter().flush(); 
 } 
}

终于来到security的配置了

@EnableWebSecurity 
@EnableGlobalMethodSecurity(prePostEnabled = true) 
public class WebSecurityConfig extends WebSecurityConfigurerAdapter { 
 @Autowired 
 private CustomUserDetailsService userDatailService; 
​ 
 @Autowired 
 private MyAccessDeniedHandler accessDeniedHandler; 
​ 
 @Bean 
 public PasswordEncoder passwordEncoder(){ 
 return new BCryptPasswordEncoder(); 
 } 
​ 
 @Override 
 protected void configure(AuthenticationManagerBuilder auth) throws Exception { 
 auth 
 .userDetailsService(userDatailService) 
 .passwordEncoder(passwordEncoder()); 
 } 
​ 
​ 
 @Override 
 protected void configure(HttpSecurity http) throws Exception { 
 http 
 .headers().frameOptions().disable() 
 .and() 
 .authorizeRequests() 
 .antMatchers("不限制访问的路径，如：'/user/*'").permitAll() 
 .antMatchers("用户拥有规定角色才允许访问的路径，如：'/user/delte'").hasRole("admin") 
 .antMatchers("规定ip才允许访问的路径，如：'/*'").hasIpAddress("192.168.1.1/24"); 
 .anyRequest().authenticated() // 所有请求都需要验证 
 .and() 
 // 跳转自定义成功页 
 .formLogin().defaultSuccessUrl("/html/index.html") 
 .and() 
 .exceptionHandling() 
 //用户无权限访问链接，给出友好提示 
 .accessDeniedHandler(accessDeniedHandler) 
 .and() 
 .csrf().disable();// post请求要关闭csrf验证,不然访问报错；实际开发中要开启。 
 } 
}

至此，springsecurity的角色权限管理就完成了，如果想要实现方法级的角色权限限制，可以在方法前加入 @PreAuthorize("hasRole('角色')")注解,多个角色可以使用hasAnyRole(),就可以限制拥有规定角色权限的用户才能访问了。

 @PreAuthorize("hasRole('admin')") 
 @RequestMapping(value = "/delete") 
 public CommonResult delete(@RequestBody int id) { 
   int i = userService.delete(new User() { 
   { 
    setId(id); 
   } 
   }); 
   return i > 0 ? processSuccess("删除成功") : processFailure("删除失败"); 
 }

到此这篇关于springsecurity轻松实现角色权限的示例代码的文章就介绍到这了,更多相关springsecurity 角色权限内容请搜索呐喊教程以前的文章或继续浏览下面的相关文章希望大家以后多多支持呐喊教程！

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