1.password 登录密码

在 springboot 项目中 , 引入依赖

        org.springframework.bootspring-boot-starter-securityorg.springframework.bootspring-boot-starter-web

启动时

1.1.默认密码

启动时 , 控制台可以看到 生成一个UUID 作为 密码

Using generated security password: 876205ea-25bd-47b2-9c68-e2ac52377915

用户名为 user

1.2. 配置文件配置密码

在 application.properties 配置文件 中加入

# 设置 用户名密码
spring.security.user.name=admin
spring.security.user.password=123

1.3.密码生成器

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.crypto.password.NoOpPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;/*** security 配置文件*/
@Configuration
public class SecurityConfig extends WebSecurityConfigurerAdapter {/*** 密码生成器* @return*/@BeanPasswordEncoder passwordEncoder() {// 无加密密码return NoOpPasswordEncoder.getInstance();}/*** 设置 用户 密码 及 角色* @param auth* @throws Exception*/@Overrideprotected void configure(AuthenticationManagerBuilder auth) throws Exception {auth.inMemoryAuthentication().withUser("yuan@123").password("123").roles("admin");}}

2.登录页面

 /*** 配置忽略掉的 URL 地址，一般对于静态文件* @param web* @throws Exception*/@Overridepublic void configure(WebSecurity web) throws Exception {web.ignoring().antMatchers("/js/**", "/css/**","/img/**","/font/**");}/***  请求属性配置* @param http* @throws Exception*/@Overrideprotected void configure(HttpSecurity http) throws Exception {http.authorizeRequests().anyRequest().authenticated().and().formLogin().loginPage("/login.html")  //转向登录页面.loginProcessingUrl("/doLogin")  // 登录请求.usernameParameter("username")   // 账号标识.passwordParameter("password")   // 密码标识//.successForwardUrl("/success")  // 登录成功跳转(内部转, 登录成功跳转到指定请求).defaultSuccessUrl("/success")    // 登录成功跳转(重定向, 登录成功就回到之前访问的资源).failureForwardUrl("/login.html").failureUrl("/login.html").permitAll().and().logout()//.logoutUrl("/logout")  // GET方式 调用logout.logoutRequestMatcher(new AntPathRequestMatcher("/logout", "POST"))  // POST 方式调用 logout.logoutSuccessUrl("/login.html")  // 退出转向.invalidateHttpSession(true)  // 清空session.clearAuthentication(true)    // 清空认证信息.permitAll().and().csrf().disable();}

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;@RestController
public class HelloController {@RequestMapping("/hello")public String sayHello(){return "hello";}@RequestMapping("/success")public String success(){return "success";}
}

3.返回信息

3.1.登录成功返回

//.successForwardUrl("/success")//.defaultSuccessUrl("/success").successHandler((request,response, authentication)->{response.setContentType("application/json;charset=utf-8");PrintWriter out = response.getWriter();out.write(new ObjectMapper().writeValueAsString(authentication.getPrincipal()));out.flush();out.close();})

{"password": null,"username": "yuan@123","authorities": [{"authority": "ROLE_admin"}],"accountNonExpired": true,"accountNonLocked": true,"credentialsNonExpired": true,"enabled": true
}

3.2.登录失败返回

//.failureForwardUrl("/login.html")//.failureUrl("/login.html").failureHandler((request,response, exception)->{response.setContentType("application/json;charset=utf-8");PrintWriter out = response.getWriter();String msg = "";if (exception instanceof LockedException) {msg = "账户被锁定，请联系管理员!";} else if (exception instanceof CredentialsExpiredException) {msg = "密码过期，请联系管理员!";} else if (exception instanceof AccountExpiredException) {msg = "账户过期，请联系管理员!";} else if (exception instanceof DisabledException) {msg = "账户被禁用，请联系管理员!";} else if (exception instanceof BadCredentialsException) {msg = "用户名或者密码输入错误，请重新输入!";}out.write(new ObjectMapper().writeValueAsString(msg));out.flush();out.close();})

3.3.未登录请求

.exceptionHandling()
.authenticationEntryPoint((req, resp, authException) -> {resp.setContentType("application/json;charset=utf-8");PrintWriter out = resp.getWriter();out.write("尚未登录，请先登录");out.flush();out.close();}
)

3.4.登出注销

 .logout().logoutUrl("/logout")//.logoutRequestMatcher(new AntPathRequestMatcher("/logout", "POST"))//.logoutSuccessUrl("/login.html")//.invalidateHttpSession(true)//.clearAuthentication(true).logoutSuccessHandler((req, resp, authentication) -> {resp.setContentType("application/json;charset=utf-8");PrintWriter out = resp.getWriter();out.write("注销成功");out.flush();out.close();})

4.角色授权

4.1.设置账号

将原来方法注释, 使用新的方法

 ///**// * 设置 用户 密码 及 角色// * @param auth// * @throws Exception// *///@Override//protected void configure(AuthenticationManagerBuilder auth) throws Exception {//    auth.inMemoryAuthentication()//            .withUser("yuan")//            .password("123")//            .roles("admin");//}/*** pring Security 支持多种数据源，例如内存、数据库、LDAP 等，* 这些不同来源的数据被共同封装成了一个 UserDetailService 接口，* 任何实现了该接口的对象都可以作为认证数据源。* @return*/@Override@Beanprotected UserDetailsService userDetailsService() {// 在内存中存储, 创建两个账号 , 分别赋 admin 和  user 权限InMemoryUserDetailsManager manager = new InMemoryUserDetailsManager();manager.createUser(User.withUsername("admin").password("123").roles("admin").build());manager.createUser(User.withUsername("yuan").password("123").roles("user").build());return manager;}

4.2.增加响应方法

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;@RestController
public class HelloController {/*** 只要登录就只可以访问* @return*/@RequestMapping("/hello")public String sayHello(){return "hello";}/*** 只有 admin 角色才能访问* @return*/@GetMapping("/admin/hello")public String admin() {return "admin";}/***  admin,  user 角色都可以访问* @return*/@GetMapping("/user/hello")public String user() {return "user";}
}

4.3.设置角色权限

 /***  请求属性配置* @param http* @throws Exception*/@Overrideprotected void configure(HttpSecurity http) throws Exception {http.authorizeRequests().antMatchers("/admin/**").hasRole("admin").antMatchers("/user/**").hasRole("user").anyRequest().authenticated().and()...

将使用 admin 访问 /user/hello 时会报错

{"timestamp": "2021-11-05T14:27:39.537+00:00","status": 403,"error": "Forbidden","message": "","path": "/user/hello"
}

4.4.角色继承

    /*** 角色继承* @return*/@BeanRoleHierarchy roleHierarchy() {RoleHierarchyImpl hierarchy = new RoleHierarchyImpl();hierarchy.setHierarchy("ROLE_admin > ROLE_user");return hierarchy;}

这样 使用 admin 访问 /user/hello 就可以了

5.访问数据库

5.1.数据库

5.2.实体类

实现 UserDetails 接口 , 覆盖对应的方法

import com.baomidou.mybatisplus.annotation.IdType;
import com.baomidou.mybatisplus.annotation.TableField;
import com.baomidou.mybatisplus.annotation.TableId;
import com.baomidou.mybatisplus.annotation.TableName;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;import lombok.Data;
import org.apache.ibatis.mapping.FetchType;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;/*** * @TableName sys_user*/
@TableName(value ="sys_user")
@Data
public class UserEntity implements UserDetails, Serializable {/*** */@TableId(type = IdType.AUTO)private Integer userId;/*** */private String userName;/*** */private String userPass;/*** */private String salt;/*** */private String nickName;@TableField(exist = false)private static final long serialVersionUID = 1L;// 账户是否没有过期@TableField(exist = false)private boolean accountNonExpired = true;//账户是否没有被锁定@TableField(exist = false)private boolean accountNonLocked = true;//密码是否没有过期@TableField(exist = false)private boolean credentialsNonExpired = true;//账户是否可用@TableField(exist = false)private boolean enabled = true;@TableField(exist = false)private List roles;// 返回用户的角色信息@Overridepublic Collection getAuthorities() {List authorities = new ArrayList<>();for (RoleEntity role : getRoles()) {// 注意这里的 角色 前缀authorities.add(new SimpleGrantedAuthority("ROLE_" + role.getRoleCode()));}return authorities;}@Overridepublic String getPassword() {return this.userPass;}@Overridepublic String getUsername() {return this.userName;}@Overridepublic boolean isAccountNonExpired() {return accountNonExpired;}@Overridepublic boolean isAccountNonLocked() {return accountNonLocked;}@Overridepublic boolean isCredentialsNonExpired() {return credentialsNonExpired;}@Overridepublic boolean isEnabled() {return enabled;}
}

5.3.service 查询

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Service;import java.util.List;/****/
@Service
public class UserServiceImpl extends ServiceImpl
implements UserService, UserDetailsService {@Overridepublic UserDetails loadUserByUsername(String name) throws UsernameNotFoundException {UserEntity user = this.getOne(new LambdaQueryWrapper().eq(UserEntity::getUsername, name));if (user == null) {throw new UsernameNotFoundException("用户不存在");}user.setRoles(this.getRolesByUserId(user.getUserId()));System.out.println("user = " + user);return user;}public List getRolesByUserId(Integer userId){// 通过 数据库 连表 , 根据 用户id 查询对应的 role 集合return this.baseMapper.selectRoleListByUserId(userId);}
}

5.4.security配置类

import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.access.hierarchicalroles.RoleHierarchy;
import org.springframework.security.access.hierarchicalroles.RoleHierarchyImpl;
import org.springframework.security.authentication.*;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.builders.WebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.core.userdetails.User;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.NoOpPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.provisioning.InMemoryUserDetailsManager;import java.io.PrintWriter;/*** security 配置类*/
@Configuration
public class SecurityConfig extends WebSecurityConfigurerAdapter {@Autowiredprivate UserServiceImpl userService;/*** 密码生成器* @return*/@BeanPasswordEncoder passwordEncoder() {// 自带加密器BCryptPasswordEncoder bCryptPasswordEncoder = new BCryptPasswordEncoder();return bCryptPasswordEncoder;}@Overrideprotected void configure(AuthenticationManagerBuilder auth) throws Exception {auth.userDetailsService(userService).passwordEncoder(passwordEncoder());}/*** 角色继承* @return*/@BeanRoleHierarchy roleHierarchy() {RoleHierarchyImpl hierarchy = new RoleHierarchyImpl();hierarchy.setHierarchy("ROLE_admin > ROLE_user");return hierarchy;}/*** 配置忽略掉的 URL 地址，一般对于静态文件* @param web* @throws Exception*/@Overridepublic void configure(WebSecurity web) throws Exception {web.ignoring().antMatchers("/js/**", "/css/**","/img/**","/font/**");}/***  请求属性配置* @param http* @throws Exception*/@Overrideprotected void configure(HttpSecurity http) throws Exception {http.authorizeRequests().antMatchers("/admin/**").hasRole("admin").antMatchers("/user/**").hasRole("user").anyRequest().authenticated().and().formLogin().loginProcessingUrl("/doLogin").successHandler((request,response, authentication)->{response.setContentType("application/json;charset=utf-8");PrintWriter out = response.getWriter();out.write(new ObjectMapper().writeValueAsString(authentication.getPrincipal()));out.flush();out.close();}).failureHandler((request,response, exception)->{response.setContentType("application/json;charset=utf-8");PrintWriter out = response.getWriter();String msg = "";if (exception instanceof LockedException) {msg = "账户被锁定，请联系管理员!";} else if (exception instanceof CredentialsExpiredException) {msg = "密码过期，请联系管理员!";} else if (exception instanceof AccountExpiredException) {msg = "账户过期，请联系管理员!";} else if (exception instanceof DisabledException) {msg = "账户被禁用，请联系管理员!";} else if (exception instanceof BadCredentialsException) {msg = "用户名或者密码输入错误，请重新输入!";}out.write(new ObjectMapper().writeValueAsString(msg));out.flush();out.close();}).permitAll().and().logout().logoutUrl("/logout").logoutSuccessHandler((req, resp, authentication) -> {resp.setContentType("application/json;charset=utf-8");PrintWriter out = resp.getWriter();out.write("注销成功");out.flush();out.close();}).and().csrf().disable().exceptionHandling().authenticationEntryPoint((req, resp, authException) -> {resp.setContentType("application/json;charset=utf-8");PrintWriter out = resp.getWriter();out.write("尚未登录，请先登录");out.flush();out.close();});}}