Spring Security + JWT 实现单点登录，还有谁不会。。。（4）-阿里云开发者社区

Service

public interface UserService extends UserDetailsService {
}
@Service
@Transactional
public class UserServiceImpl implements UserService {
    @Autowired
    private UserMapper mapper;
    @Override
    public UserDetails loadUserByUsername(String s) throws UsernameNotFoundException {
        UserPojo user = mapper.queryByUserName(s);
        return user;
    }
}

自定义认证过滤器

package com.dpb.filter;
import com.dpb.config.RsaKeyProperties;
import com.dpb.domain.RolePojo;
import com.dpb.domain.UserPojo;
import com.dpb.utils.JwtUtils;
import com.fasterxml.jackson.databind.ObjectMapper;
import net.bytebuddy.agent.builder.AgentBuilder;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.userdetails.User;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
 * @program: springboot-54-security-jwt-demo
 * @description:
 * @author: 波波烤鸭
 * @create: 2019-12-03 11:57
 */
public class TokenLoginFilter extends UsernamePasswordAuthenticationFilter {
    private AuthenticationManager authenticationManager;
    private RsaKeyProperties prop;
    public TokenLoginFilter(AuthenticationManager authenticationManager, RsaKeyProperties prop) {
        this.authenticationManager = authenticationManager;
        this.prop = prop;
    }
    public Authentication attemptAuthentication(HttpServletRequest request, HttpServletResponse response) throws AuthenticationException {
        try {
            UserPojo sysUser = new ObjectMapper().readValue(request.getInputStream(), UserPojo.class);
            UsernamePasswordAuthenticationToken authRequest = new UsernamePasswordAuthenticationToken(sysUser.getUsername(), sysUser.getPassword());
            return authenticationManager.authenticate(authRequest);
        }catch (Exception e){
            try {
                response.setContentType("application/json;charset=utf-8");
                response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
                PrintWriter out = response.getWriter();
                Map resultMap = new HashMap();
                resultMap.put("code", HttpServletResponse.SC_UNAUTHORIZED);
                resultMap.put("msg", "用户名或密码错误！");
                out.write(new ObjectMapper().writeValueAsString(resultMap));
                out.flush();
                out.close();
            }catch (Exception outEx){
                outEx.printStackTrace();
            }
            throw new RuntimeException(e);
        }
    }
    public void successfulAuthentication(HttpServletRequest request, HttpServletResponse response, FilterChain chain, Authentication authResult) throws IOException, ServletException {
        UserPojo user = new UserPojo();
        user.setUsername(authResult.getName());
        user.setRoles((List<RolePojo>)authResult.getAuthorities());
        String token = JwtUtils.generateTokenExpireInMinutes(user, prop.getPrivateKey(), 24 * 60);
        response.addHeader("Authorization", "Bearer "+token);
        try {
            response.setContentType("application/json;charset=utf-8");
            response.setStatus(HttpServletResponse.SC_OK);
            PrintWriter out = response.getWriter();
            Map resultMap = new HashMap();
            resultMap.put("code", HttpServletResponse.SC_OK);
            resultMap.put("msg", "认证通过！");
            out.write(new ObjectMapper().writeValueAsString(resultMap));
            out.flush();
            out.close();
        }catch (Exception outEx){
            outEx.printStackTrace();
        }
    }
}

自定义校验token的过滤器

package com.dpb.filter;
import com.dpb.config.RsaKeyProperties;
import com.dpb.domain.Payload;
import com.dpb.domain.UserPojo;
import com.dpb.utils.JwtUtils;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.web.authentication.www.BasicAuthenticationFilter;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.HashMap;
import java.util.Map;
/**
 * @program: springboot-54-security-jwt-demo
 * @description:
 * @author: 波波烤鸭
 * @create: 2019-12-03 12:39
 */
public class TokenVerifyFilter  extends BasicAuthenticationFilter {
    private RsaKeyProperties prop;
    public TokenVerifyFilter(AuthenticationManager authenticationManager, RsaKeyProperties prop) {
        super(authenticationManager);
        this.prop = prop;
    }
    public void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain chain) throws IOException, ServletException {
        String header = request.getHeader("Authorization");
        if (header == null || !header.startsWith("Bearer ")) {
            //如果携带错误的token，则给用户提示请登录！
            chain.doFilter(request, response);
            response.setContentType("application/json;charset=utf-8");
            response.setStatus(HttpServletResponse.SC_FORBIDDEN);
            PrintWriter out = response.getWriter();
            Map resultMap = new HashMap();
            resultMap.put("code", HttpServletResponse.SC_FORBIDDEN);
            resultMap.put("msg", "请登录！");
            out.write(new ObjectMapper().writeValueAsString(resultMap));
            out.flush();
            out.close();
        } else {
            //如果携带了正确格式的token要先得到token
            String token = header.replace("Bearer ", "");
            //验证tken是否正确
            Payload<UserPojo> payload = JwtUtils.getInfoFromToken(token, prop.getPublicKey(), UserPojo.class);
            UserPojo user = payload.getUserInfo();
            if(user!=null){
                UsernamePasswordAuthenticationToken authResult = new UsernamePasswordAuthenticationToken(user.getUsername(), null, user.getAuthorities());
                SecurityContextHolder.getContext().setAuthentication(authResult);
                chain.doFilter(request, response);
            }
        }
    }
}

编写SpringSecurity的配置类

package com.dpb.config;
import com.dpb.filter.TokenLoginFilter;
import com.dpb.filter.TokenVerifyFilter;
import com.dpb.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
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.method.configuration.EnableGlobalMethodSecurity;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.config.http.SessionCreationPolicy;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
/**
 * @program: springboot-54-security-jwt-demo
 * @description:
 * @author: 波波烤鸭
 * @create: 2019-12-03 12:41
 */
@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(securedEnabled=true)
public class WebSecurityConfig   extends WebSecurityConfigurerAdapter {
    @Autowired
    private UserService userService;
    @Autowired
    private RsaKeyProperties prop;
    @Bean
    public BCryptPasswordEncoder passwordEncoder(){
        return new BCryptPasswordEncoder();
    }
    //指定认证对象的来源
    public void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.userDetailsService(userService).passwordEncoder(passwordEncoder());
    }
    //SpringSecurity配置信息
    public void configure(HttpSecurity http) throws Exception {
        http.csrf()
                .disable()
                .authorizeRequests()
                .antMatchers("/user/query").hasAnyRole("ADMIN")
                .anyRequest()
                .authenticated()
                .and()
                .addFilter(new TokenLoginFilter(super.authenticationManager(), prop))
                .addFilter(new TokenVerifyFilter(super.authenticationManager(), prop))
                .sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS);
    }
}