1.password 登录密码

在 springboot 项目中 , 引入依赖

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

启动时

在这里插入图片描述

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
     */
    @Bean
    PasswordEncoder passwordEncoder() {
        // 无加密密码
        return NoOpPasswordEncoder.getInstance();
    }

    /**
     * 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@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
     */
    @Override
    public void configure(WebSecurity web) throws Exception {
        web.ignoring().antMatchers("/js/**", "/css/**","/img/**","/font/**");
    }

    /**
     *  请求属性配置
     * @param http
     * @throws Exception
     */
    @Override
    protected 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
    @Bean
    protected 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
     */
    @Override
    protected 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
     */
    @Bean
    RoleHierarchy 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<RoleEntity> roles;

    // 返回用户的角色信息
    @Override
    public Collection<? extends GrantedAuthority> getAuthorities() {
        List<SimpleGrantedAuthority> 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;
    }

    @Override
    public String getPassword() {
        return this.userPass;
    }

    @Override
    public String getUsername() {
        return this.userName;
    }

    @Override
    public boolean isAccountNonExpired() {
        return accountNonExpired;
    }

    @Override
    public boolean isAccountNonLocked() {
        return accountNonLocked;
    }

    @Override
    public boolean isCredentialsNonExpired() {
        return credentialsNonExpired;
    }

    @Override
    public 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<UserMapper, UserEntity>
implements UserService, UserDetailsService {

    @Override
    public UserDetails loadUserByUsername(String name) throws UsernameNotFoundException {

        UserEntity user = this.getOne(new LambdaQueryWrapper<UserEntity>().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<RoleEntity> 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 {


    @Autowired
    private UserServiceImpl userService;

    /**
     * 密码生成器
     * @return
     */
    @Bean
    PasswordEncoder passwordEncoder() {
        // 自带加密器
        BCryptPasswordEncoder bCryptPasswordEncoder = new BCryptPasswordEncoder();
        return bCryptPasswordEncoder;
    }

    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(userService).passwordEncoder(passwordEncoder());
    }

    /**
     * 角色继承
     * @return
     */
    @Bean
    RoleHierarchy 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
     */
    @Override
    public void configure(WebSecurity web) throws Exception {
        web.ignoring().antMatchers("/js/**", "/css/**","/img/**","/font/**");
    }



    /**
     *  请求属性配置
     * @param http
     * @throws Exception
     */
    @Override
    protected 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();
                    }
                );
    }

}