一后端操作配置

1.0 工程结构

1.1 在common下创建spring_security模块

1.2 pom文件中依赖的注入

1.3 在service_acl模块服务中引入spring-security权限认证模块

1.3.1 service_acl引入spring-security

1.3.2 在service_acl编写查询数据库信息

定义userDetailServiceImpl 查询用户信息的实现类

1.4 springsecurity的配置文件

1.Spring Security的核心配置就是继承WebSecurityConfigurerAdapter并注解@EnableWebSecurity的配置。

这个配置指明了用户名密码的处理方式、请求路径的开合、登录登出控制等和安全相关的配置

2.配置一些放行的请求

3.代码

package com.atguigu.serurity.config;

import com.atguigu.serurity.filter.TokenAuthenticationFilter;
import com.atguigu.serurity.filter.TokenLoginFilter;
import com.atguigu.serurity.security.DefaultPasswordEncoder;
import com.atguigu.serurity.security.TokenLogoutHandler;
import com.atguigu.serurity.security.TokenManager;
import com.atguigu.serurity.security.UnauthorizedEntryPoint;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
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.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.core.userdetails.UserDetailsService;

/**
 * <p>
 * Security配置类
 * </p>
 *
 * @author qy
 * @since 2019-11-18
 */
@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class TokenWebSecurityConfig extends WebSecurityConfigurerAdapter {

    private UserDetailsService userDetailsService;
    private TokenManager tokenManager;
    private DefaultPasswordEncoder defaultPasswordEncoder;
    private RedisTemplate redisTemplate;

    @Autowired
    public TokenWebSecurityConfig(UserDetailsService userDetailsService, DefaultPasswordEncoder defaultPasswordEncoder,
                                  TokenManager tokenManager, RedisTemplate redisTemplate) {
        this.userDetailsService = userDetailsService;
        this.defaultPasswordEncoder = defaultPasswordEncoder;
        this.tokenManager = tokenManager;
        this.redisTemplate = redisTemplate;
    }

    /**
     * 配置设置
     * @param http
     * @throws Exception
     */
    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http.exceptionHandling()
                .authenticationEntryPoint(new UnauthorizedEntryPoint())
                .and().csrf().disable()
                .authorizeRequests()
                .anyRequest().authenticated()
                .and().logout().logoutUrl("/admin/acl/index/logout")
                .addLogoutHandler(new TokenLogoutHandler(tokenManager,redisTemplate)).and()
                .addFilter(new TokenLoginFilter(authenticationManager(), tokenManager, redisTemplate))
                .addFilter(new TokenAuthenticationFilter(authenticationManager(), tokenManager, redisTemplate)).httpBasic();
    }

    /**
     * 密码处理
     * @param auth
     * @throws Exception
     */
    @Override
    public void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(userDetailsService).passwordEncoder(defaultPasswordEncoder);
    }

    /**
     * 配置哪些请求不拦截
     * @param web
     * @throws Exception
     */
    @Override
    public void configure(WebSecurity web) throws Exception {
//        web.ignoring().antMatchers("/api/**",
//                "/swagger-resources/**", "/webjars/**", "/v2/**", "/swagger-ui.html/**"
//               );
        web.ignoring().antMatchers("/*/**"
        );
    }
}

1.5 认证授权工具类

1.加密解密工具类

@Component
public class DefaultPasswordEncoder implements PasswordEncoder {

    public DefaultPasswordEncoder() {
        this(-1);
    }

    /**
     * @param strength
     *            the log rounds to use, between 4 and 31
     */
    public DefaultPasswordEncoder(int strength) {

    }

    public String encode(CharSequence rawPassword) {
        return MD5.encrypt(rawPassword.toString());
    }

    public boolean matches(CharSequence rawPassword, String encodedPassword) {
        return encodedPassword.equals(MD5.encrypt(rawPassword.toString()));
    }
}

2.token加密工具

@Component
public class TokenManager {

    private long tokenExpiration = 24*60*60*1000;
    private String tokenSignKey = "123456";

    public String createToken(String username) {
        String token = Jwts.builder().setSubject(username)
                .setExpiration(new Date(System.currentTimeMillis() + tokenExpiration))
                .signWith(SignatureAlgorithm.HS512, tokenSignKey).compressWith(CompressionCodecs.GZIP).compact();
        return token;
    }

    public String getUserFromToken(String token) {
        String user = Jwts.parser().setSigningKey(tokenSignKey).parseClaimsJws(token).getBody().getSubject();
        return user;
    }

    public void removeToken(String token) {
        //jwttoken无需删除，客户端扔掉即可。
    }

}

3.TokenLogoutHandler：退出实现

package com.atguigu.serurity.security;

import com.atguigu.commonutils.R;
import com.atguigu.commonutils.ResponseUtil;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.security.core.Authentication;
import org.springframework.security.web.authentication.logout.LogoutHandler;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * <p>
 * 登出业务逻辑类
 * </p>
 *
 * @author qy
 * @since 2019-11-08
 */
public class TokenLogoutHandler implements LogoutHandler {

    private TokenManager tokenManager;
    private RedisTemplate redisTemplate;

    public TokenLogoutHandler(TokenManager tokenManager, RedisTemplate redisTemplate) {
        this.tokenManager = tokenManager;
        this.redisTemplate = redisTemplate;
    }

    @Override
    public void logout(HttpServletRequest request, HttpServletResponse response, Authentication authentication) {
        String token = request.getHeader("token");
        if (token != null) {
            tokenManager.removeToken(token);

            //清空当前用户缓存中的权限数据
            String userName = tokenManager.getUserFromToken(token);
            redisTemplate.delete(userName);
        }
        ResponseUtil.out(response, R.ok());
    }

}

4.异常管理：未授权统一处理

public class UnauthorizedEntryPoint implements AuthenticationEntryPoint {

    @Override
    public void commence(HttpServletRequest request, HttpServletResponse response,
                         AuthenticationException authException) throws IOException, ServletException {

        ResponseUtil.out(response, R.error());
    }
}

1.6 创建认证授权实体类

1.user

@Data
@ApiModel(description = "用户实体类")
public class User implements Serializable {

	private static final long serialVersionUID = 1L;

	@ApiModelProperty(value = "微信openid")
	private String username;

	@ApiModelProperty(value = "密码")
	private String password;

	@ApiModelProperty(value = "昵称")
	private String nickName;

	@ApiModelProperty(value = "用户头像")
	private String salt;

	@ApiModelProperty(value = "用户签名")
	private String token;

}

2.securityUser

@Data
@Slf4j
public class SecurityUser implements UserDetails {

    //当前登录用户
    private transient User currentUserInfo;

    //当前权限
    private List<String> permissionValueList;

    public SecurityUser() {
    }

    public SecurityUser(User user) {
        if (user != null) {
            this.currentUserInfo = user;
        }
    }

    @Override
    public Collection<? extends GrantedAuthority> getAuthorities() {
        Collection<GrantedAuthority> authorities = new ArrayList<>();
        for(String permissionValue : permissionValueList) {
            if(StringUtils.isEmpty(permissionValue)) continue;
            SimpleGrantedAuthority authority = new SimpleGrantedAuthority(permissionValue);
            authorities.add(authority);
        }

        return authorities;
    }

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

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

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

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

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

    @Override
    public boolean isEnabled() {
        return true;
    }
}

1.7 认证授权的过滤器

1.7.1 认证TokenLoginFilter：认证的filter

public class TokenLoginFilter extends UsernamePasswordAuthenticationFilter {

    private AuthenticationManager authenticationManager;
    private TokenManager tokenManager;
    private RedisTemplate redisTemplate;

    public TokenLoginFilter(AuthenticationManager authenticationManager, TokenManager tokenManager, RedisTemplate redisTemplate) {
        this.authenticationManager = authenticationManager;
        this.tokenManager = tokenManager;
        this.redisTemplate = redisTemplate;
        this.setPostOnly(false);
        this.setRequiresAuthenticationRequestMatcher(new AntPathRequestMatcher("/admin/acl/login","POST"));
    }

    @Override
    public Authentication attemptAuthentication(HttpServletRequest req, HttpServletResponse res)
            throws AuthenticationException {
        try {
            User user = new ObjectMapper().readValue(req.getInputStream(), User.class);

            return authenticationManager.authenticate(new UsernamePasswordAuthenticationToken(user.getUsername(), user.getPassword(), new ArrayList<>()));
        } catch (IOException e) {
            throw new RuntimeException(e);
        }

    }

    /**
     * 登录成功
     * @param req
     * @param res
     * @param chain
     * @param auth
     * @throws IOException
     * @throws ServletException
     */
    @Override
    protected void successfulAuthentication(HttpServletRequest req, HttpServletResponse res, FilterChain chain,
                                            Authentication auth) throws IOException, ServletException {
        SecurityUser user = (SecurityUser) auth.getPrincipal();
        String token = tokenManager.createToken(user.getCurrentUserInfo().getUsername());
        redisTemplate.opsForValue().set(user.getCurrentUserInfo().getUsername(), user.getPermissionValueList());

        ResponseUtil.out(res, R.ok().data("token", token));
    }

    /**
     * 登录失败
     * @param request
     * @param response
     * @param e
     * @throws IOException
     * @throws ServletException
     */
    @Override
    protected void unsuccessfulAuthentication(HttpServletRequest request, HttpServletResponse response,
                                              AuthenticationException e) throws IOException, ServletException {
        ResponseUtil.out(response, R.error());
    }
}

1.7.2 授权TokenAuthenticationFilter

package com.atguigu.serurity.filter;

import com.atguigu.commonutils.R;
import com.atguigu.commonutils.ResponseUtil;
import com.atguigu.serurity.security.TokenManager;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.web.authentication.www.BasicAuthenticationFilter;
import org.springframework.util.StringUtils;

import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

/**
 * <p>
 * 访问过滤器
 * </p>
 *
 * @author qy
 * @since 2019-11-08
 */
public class TokenAuthenticationFilter extends BasicAuthenticationFilter {
    private TokenManager tokenManager;
    private RedisTemplate redisTemplate;

    public TokenAuthenticationFilter(AuthenticationManager authManager, TokenManager tokenManager,RedisTemplate redisTemplate) {
        super(authManager);
        this.tokenManager = tokenManager;
        this.redisTemplate = redisTemplate;
    }

    @Override
    protected void doFilterInternal(HttpServletRequest req, HttpServletResponse res, FilterChain chain)
            throws IOException, ServletException {
        logger.info("================="+req.getRequestURI());
        if(req.getRequestURI().indexOf("admin") == -1) {
            chain.doFilter(req, res);
            return;
        }

        UsernamePasswordAuthenticationToken authentication = null;
        try {
            authentication = getAuthentication(req);
        } catch (Exception e) {
            ResponseUtil.out(res, R.error());
        }

        if (authentication != null) {
            SecurityContextHolder.getContext().setAuthentication(authentication);
        } else {
            ResponseUtil.out(res, R.error());
        }
        chain.doFilter(req, res);
    }

    private UsernamePasswordAuthenticationToken getAuthentication(HttpServletRequest request) {
        // token置于header里
        String token = request.getHeader("token");
        if (token != null && !"".equals(token.trim())) {
            String userName = tokenManager.getUserFromToken(token);

            List<String> permissionValueList = (List<String>) redisTemplate.opsForValue().get(userName);
            Collection<GrantedAuthority> authorities = new ArrayList<>();
            for(String permissionValue : permissionValueList) {
                if(StringUtils.isEmpty(permissionValue)) continue;
                SimpleGrantedAuthority authority = new SimpleGrantedAuthority(permissionValue);
                authorities.add(authority);
            }

            if (!StringUtils.isEmpty(userName)) {
                return new UsernamePasswordAuthenticationToken(userName, token, authorities);
            }
            return null;
        }
        return null;
    }
}