JWT教程_2 SpringSecurity与JWT整合

迈不过友情╰ 2023-01-01 11:50 183阅读 0赞

# 3. SpringSecurity与JWT整合 #

依赖：

<dependencies>
        <dependency>
            <groupId>org.mybatis.spring.boot</groupId>
            <artifactId>mybatis-spring-boot-starter</artifactId>
            <version>2.1.4</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>io.jsonwebtoken</groupId>
            <artifactId>jjwt</artifactId>
            <version>0.9.1</version>
        </dependency>
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid-spring-boot-starter</artifactId>
            <version>1.1.21</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>

application.properties：

spring.thymeleaf.cache=false
    spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
    spring.datasource.url=jdbc:mysql://localhost:3306/springsecurity001?useUnicode=true&characterEncoding=UTF-8&serverTimezone=GMT%2B8
    spring.datasource.username=root
    spring.datasource.password=123456
    spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
    mybatis.mapper-locations=classpath:mapper/*.xml

启动类SecurityJwtApplication：

@SpringBootApplication
    @MapperScan("com.blu.mapper")
    public class SecurityJwtApplication { 
    
    	public static void main(String[] args) { 
    		SpringApplication.run(SecurityJwtApplication.class, args);
    	}
    	
    	@Bean
    	public BCryptPasswordEncoder bcryptPasswordEncoder(){ 
    		return new BCryptPasswordEncoder();
    	}
    
    }

MyUser：

@Data
    public class MyUser implements UserDetails { 
    	
    	private Integer id;
    	private String name;
    	private String password;
    	private List<MyRole> roles;
    
    	@JsonIgnore
    	@Override
    	public Collection<? extends GrantedAuthority> getAuthorities() { 
    		return roles;
    	}
    
    	@JsonIgnore
    	@Override
    	public String getUsername() { 
    		return name;
    	}
    
    	@JsonIgnore
    	@Override
    	public boolean isAccountNonExpired() { 
    		return true;
    	}
    
    	@JsonIgnore
    	@Override
    	public boolean isAccountNonLocked() { 
    		return true;
    	}
    
    	@JsonIgnore
    	@Override
    	public boolean isCredentialsNonExpired() { 
    		return true;
    	}
    
    	@JsonIgnore
    	@Override
    	public boolean isEnabled() { 
    		return true;
    	}
    
    }

MyRole：

@Data
    public class MyRole implements GrantedAuthority { 
    	
    	private Integer id;
    	private String name;
    
    	@JsonIgnore
    	@Override
    	public String getAuthority() { 
    		return name;
    	}
    
    }

MyUserMapper：

public interface MyUserMapper { 
    	MyUser findByName(String name);
    }

<?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.blu.mapper.MyUserMapper">
    	<resultMap type="com.blu.entity.MyUser" id="myUserMap">
    		<id column="uid" property="id"></id>
    		<result column="uname" property="name"></result>
    		<result column="password" property="password"></result>
    		<collection property="roles" ofType="com.blu.entity.MyRole">
    			<id column="rid" property="id" />
    			<result column="rname" property="name" />
    		</collection>
    	</resultMap>
    
    	<select id="findByName" parameterType="String" resultMap="myUserMap">
    		select u.id uid,u.name uname,u.password,r.id rid,r.name rname
    		from user u,role r,role_user ur 
    		where u.name = #{name} and ur.user_id = u.id and ur.role_id = r.id
    	</select>
    </mapper>

UserService：

public interface UserService extends UserDetailsService { 
    
    }

UserServiceImpl：

@Service
    public class UserServiceImpl implements UserService { 
    	
    	@Autowired
    	private MyUserMapper myUserMapper;
    
    	@Override
    	public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException { 
    		MyUser myUser = myUserMapper.findByName(username);
    		return myUser;
    	}
    
    }

JwtLoginFilter：

public class JwtLoginFilter extends AbstractAuthenticationProcessingFilter { 
    	
    	public JwtLoginFilter(String defaultFilterProcessesUrl, AuthenticationManager authenticationManager) { 
    
    		super(new AntPathRequestMatcher(defaultFilterProcessesUrl));
    		setAuthenticationManager(authenticationManager);
    	}
    
    
    	/** * 从登录参数json数据中获取用户名密码，然后调用AuthenticationManager.authenticate()方法进行校验。 */
    	@Override
    	public Authentication attemptAuthentication(HttpServletRequest req, HttpServletResponse resp) throws AuthenticationException, IOException, ServletException { 
    		//将用户传的json数据转为user对象
    		MyUser user = new ObjectMapper().readValue(req.getInputStream(),MyUser.class);
    		return getAuthenticationManager().authenticate(new UsernamePasswordAuthenticationToken(user.getUsername(),user.getPassword()));
    	}
    
    	/** * 校验成功 */
    	@Override
    	protected void successfulAuthentication(HttpServletRequest request, HttpServletResponse response, FilterChain chain, Authentication authResult) throws IOException, ServletException { 
    		Collection<? extends GrantedAuthority> authorities = authResult.getAuthorities();
    		StringBuffer sb = new StringBuffer();
    		for (GrantedAuthority authority : authorities) { 
    			sb.append(authority.getAuthority()).append(",");
    		}
    		String jwt = Jwts.builder()
    				.claim("authorities", sb)
    				.setSubject(authResult.getName())
    				.setExpiration(new Date(System.currentTimeMillis() + 60 * 60 * 1000))//设置过期时间
    				.signWith(SignatureAlgorithm.HS512, "root@123")//设置加密方式，以及key
    				.compact();
    		//设置登录成功后返回的信息
    		Map<String,String> map = new HashMap<>();
    		map.put("token",jwt);
    		map.put("msg","登录成功");
    		response.setContentType("application/json;charset=utf-8");
    		PrintWriter writer = response.getWriter();
    		writer.write(new ObjectMapper().writeValueAsString(map));
    		writer.flush();
    		writer.close();
    	}
    
    	/** * 校验失败 */
    	@Override
    	protected void unsuccessfulAuthentication(HttpServletRequest request, HttpServletResponse response, AuthenticationException failed) throws IOException, ServletException { 
    		Map<String,String> map = new HashMap<>();
    		map.put("msg","登录失败");
    		response.setContentType("application/json;charset=utf-8");
    		PrintWriter writer = response.getWriter();
    		writer.write(new ObjectMapper().writeValueAsString(map));
    		writer.flush();
    		writer.close();
    	}
    }

JwtFilter：

public class JwtFilter extends GenericFilterBean { 
        @Override
        public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException { 
           HttpServletRequest req =  (HttpServletRequest) servletRequest;
           //从请求头中获取token
            String jwtToken = req.getHeader("authorization");
            Jws<Claims> jws = Jwts.parser().setSigningKey("root@123")
                    .parseClaimsJws(jwtToken.replace("Bearer", ""));
            Claims claims = jws.getBody();
            String username = claims.getSubject();
            //获取角色
            List<GrantedAuthority> authorities = AuthorityUtils.commaSeparatedStringToAuthorityList((String) claims.get("authorities"));
            UsernamePasswordAuthenticationToken token = new UsernamePasswordAuthenticationToken(username,"",authorities);
            SecurityContextHolder.getContext().setAuthentication(token);
            filterChain.doFilter(servletRequest,servletResponse);
        }
    }

测试接口：

@RestController
    public class StringController { 
    	
    	@GetMapping("hello")
    	public String hello() { 
    		return "hello BLU!";
    	}
    	
    	@GetMapping("hi")
    	public String hi() { 
    		return "hi everyone!";
    	}
    	
    	@GetMapping("admin")
    	public String admin() { 
    		return "hello admin!";
    	}
    
    }

Security配置类：

@EnableWebSecurity
    public class SecurityConfig extends WebSecurityConfigurerAdapter{ 
    	
    	@Autowired
    	private UserServiceImpl userServiceImpl;
    	@Autowired
    	private BCryptPasswordEncoder bcryptPasswordEncoder;
    	
    	@Override
    	protected void configure(HttpSecurity http) throws Exception { 
    		
    		http.authorizeRequests()
    			.antMatchers(HttpMethod.GET,"/hi").permitAll()
    			.antMatchers("/hello").hasRole("vip1")
    			.antMatchers("/admin").hasRole("admin");
    		
    		http.formLogin().loginPage("/tologin")
    						.usernameParameter("name")
    						.passwordParameter("password")
    						.loginProcessingUrl("/login");
    		
    		http.csrf().disable();
    		
    		http.addFilterBefore(new JwtLoginFilter("/login",authenticationManager()),
                    UsernamePasswordAuthenticationFilter.class)
            	.addFilterBefore(new JwtFilter(),UsernamePasswordAuthenticationFilter.class);
    		
    	}
    	
    	@Override
    	protected void configure(AuthenticationManagerBuilder auth) throws Exception { 
    		
    		auth.userDetailsService(userServiceImpl).passwordEncoder(bcryptPasswordEncoder);
    	}
    	
    }

测试错误密码登录：  
![在这里插入图片描述][1b940ec3dec3afea0c9ce6c9df7b88c6.png]  
测试正确密码登录：  
![在这里插入图片描述][87b4413bb7246ad6ab558bcae620a394.png]  
测试访问（有权限）：  
![在这里插入图片描述][852a65cfe325410a18bdbe28a469c509.png]  
测试访问（无权限）：  
![在这里插入图片描述][11129b49d2a4bff2cba77d83ddbd10a1.png]  
测试访问（错误token）：  
![在这里插入图片描述][fd4d1b881ea9b3c6545de46b9b7079e1.png]

[1b940ec3dec3afea0c9ce6c9df7b88c6.png]: /images/20221120/195d14960c0a4b9b9df8601edfc8bce3.png
[87b4413bb7246ad6ab558bcae620a394.png]: /images/20221120/abe86af36e954a8598d514cd7c91d162.png
[852a65cfe325410a18bdbe28a469c509.png]: /images/20221120/8bfd46482ea6478dae1ca89ac640860f.png
[11129b49d2a4bff2cba77d83ddbd10a1.png]: /images/20221120/afe7611b39f9475886a42118e9a96bf0.png
[fd4d1b881ea9b3c6545de46b9b7079e1.png]: /images/20221120/372fd237b99c4b32b9f5315a7f8c7a41.png