Spring Security和JWT实现登录授权认证

 目标

1.Token鉴权

2.Restful API

3.Spring Security+JWT

开始

自行新建Spring Boot工程

引入相关依赖

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<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-security</artifactId>
    <version>1.5.9.RELEASE</version>
</dependency>
<dependency>
    <groupId>io.jsonwebtoken</groupId>
    <artifactId>jjwt</artifactId>
    <version>0.9.0</version>
</dependency>
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User类

非常简单的用户模型，将权限集成到了用户类中。

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pacage com.domain
/**
 * 用户模型
 *
 * @author hackyo
 * Created on 2017/12/3 11:53.
 */
public class User {

    private String id;
    private String username;
    private String password;
    private List<String> roles;

    ......
    省略get、set方法
    ......

}
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IUserRepository类

需实现对用户表的增删改查，此处可采用任意数据库，具体实现自行编写。

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package com.dao
/**
 * 用户表操作接口
 *
 * @author hackyo
 * Created on 2017/12/3 11:53.
 */
@Component
public interface IUserRepository{

    /**
     * 通过用户名查找用户
     *
     * @param username 用户名
     * @return 用户信息
     */
    User findByUsername(String username);

}
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JwtUser类

安全模块的用户模型

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package com.security;

import com.fasterxml.jackson.annotation.JsonIgnore;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.userdetails.UserDetails;

import java.util.Collection;

/**
 * 安全用户模型
 *
 * @author hackyo
 * Created on 2017/12/8 9:20.
 */
public class JwtUser implements UserDetails {

    private String username;
    private String password;
    private Collection<? extends GrantedAuthority> authorities;

    JwtUser(String username, String password, Collection<? extends GrantedAuthority> authorities) {
        this.username = username;
        this.password = password;
        this.authorities = authorities;
    }

    @Override
    public String getUsername() {
        return username;
    }

    @JsonIgnore
    @Override
    public String getPassword() {
        return password;
    }

    @Override
    public Collection<? extends GrantedAuthority> getAuthorities() {
        return authorities;
    }

    @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;
    }

}
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 JwtTokenUtil类

Token工具类

这里设置了密钥为aaaaaaaa，有效期为2592000秒

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package com.security;

import io.jsonwebtoken.Claims;
import io.jsonwebtoken.Jwts;
import io.jsonwebtoken.SignatureAlgorithm;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.stereotype.Component;

import java.io.Serializable;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

/**
 * JWT工具类
 *
 * @author hackyo
 * Created on 2017/12/8 9:20.
 */
@Component
public class JwtTokenUtil implements Serializable {

    /**
     * 密钥
     */
    private final String secret = "aaaaaaaa";

    /**
     * 从数据声明生成令牌
     *
     * @param claims 数据声明
     * @return 令牌
     */
    private String generateToken(Map<String, Object> claims) {
        Date expirationDate = new Date(System.currentTimeMillis() + 2592000L * 1000);
        return Jwts.builder().setClaims(claims).setExpiration(expirationDate).signWith(SignatureAlgorithm.HS512, secret).compact();
    }

    /**
     * 从令牌中获取数据声明
     *
     * @param token 令牌
     * @return 数据声明
     */
    private Claims getClaimsFromToken(String token) {
        Claims claims;
        try {
            claims = Jwts.parser().setSigningKey(secret).parseClaimsJws(token).getBody();
        } catch (Exception e) {
            claims = null;
        }
        return claims;
    }

    /**
     * 生成令牌
     *
     * @param userDetails 用户
     * @return 令牌
     */
    public String generateToken(UserDetails userDetails) {
        Map<String, Object> claims = new HashMap<>(2);
        claims.put("sub", userDetails.getUsername());
        claims.put("created", new Date());
        return generateToken(claims);
    }

    /**
     * 从令牌中获取用户名
     *
     * @param token 令牌
     * @return 用户名
     */
    public String getUsernameFromToken(String token) {
        String username;
        try {
            Claims claims = getClaimsFromToken(token);
            username = claims.getSubject();
        } catch (Exception e) {
            username = null;
        }
        return username;
    }

    /**
     * 判断令牌是否过期
     *
     * @param token 令牌
     * @return 是否过期
     */
    public Boolean isTokenExpired(String token) {
        try {
            Claims claims = getClaimsFromToken(token);
            Date expiration = claims.getExpiration();
            return expiration.before(new Date());
        } catch (Exception e) {
            return false;
        }
    }

    /**
     * 刷新令牌
     *
     * @param token 原令牌
     * @return 新令牌
     */
    public String refreshToken(String token) {
        String refreshedToken;
        try {
            Claims claims = getClaimsFromToken(token);
            claims.put("created", new Date());
            refreshedToken = generateToken(claims);
        } catch (Exception e) {
            refreshedToken = null;
        }
        return refreshedToken;
    }

    /**
     * 验证令牌
     *
     * @param token       令牌
     * @param userDetails 用户
     * @return 是否有效
     */
    public Boolean validateToken(String token, UserDetails userDetails) {
        JwtUser user = (JwtUser) userDetails;
        String username = getUsernameFromToken(token);
        return (username.equals(user.getUsername()) && !isTokenExpired(token));
    }

}
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 JwtUserDetailsServiceImpl类

用户验证方法类

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package com.security;

import com.safepass.dao.IUserRepository;
import com.safepass.domain.User;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
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.stream.Collectors;

/**
 * 用户验证方法
 *
 * @author hackyo
 * Created on 2017/12/8 9:18.
 */
@Service
public class JwtUserDetailsServiceImpl implements UserDetailsService {

    private IUserRepository userRepository;

    @Autowired
    public JwtUserDetailsServiceImpl(IUserRepository userRepository) {
        this.userRepository = userRepository;
    }

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        User user = userRepository.findByUsername(username);
        if (user == null) {
            throw new UsernameNotFoundException(String.format("No user found with username '%s'.", username));
        } else {
            return new JwtUser(user.getUsername(), user.getPassword(), user.getRoles().stream().map(SimpleGrantedAuthority::new).collect(Collectors.toList()));
        }
    }

}
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JwtAuthenticationTokenFilter类

Token过滤器实现

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package com.security;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.web.authentication.WebAuthenticationDetailsSource;
import org.springframework.stereotype.Component;
import org.springframework.web.filter.OncePerRequestFilter;

import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * Token过滤器
 *
 * @author hackyo
 * Created on 2017/12/8 9:28.
 */
@Component
public class JwtAuthenticationTokenFilter extends OncePerRequestFilter {

    private UserDetailsService userDetailsService;
    private JwtTokenUtil jwtTokenUtil;

    @Autowired
    public JwtAuthenticationTokenFilter(UserDetailsService userDetailsService, JwtTokenUtil jwtTokenUtil) {
        this.userDetailsService = userDetailsService;
        this.jwtTokenUtil = jwtTokenUtil;
    }

    @Override
    protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain chain) throws ServletException, IOException {
        String authHeader = request.getHeader("Authorization");
        String tokenHead = "Bearer ";
        if (authHeader != null && authHeader.startsWith(tokenHead)) {
            String authToken = authHeader.substring(tokenHead.length());
            String username = jwtTokenUtil.getUsernameFromToken(authToken);
            if (username != null && SecurityContextHolder.getContext().getAuthentication() == null) {
                UserDetails userDetails = this.userDetailsService.loadUserByUsername(username);
                if (jwtTokenUtil.validateToken(authToken, userDetails)) {
                    UsernamePasswordAuthenticationToken authentication = new UsernamePasswordAuthenticationToken(userDetails, null, userDetails.getAuthorities());
                    authentication.setDetails(new WebAuthenticationDetailsSource().buildDetails(request));
                    SecurityContextHolder.getContext().setAuthentication(authentication);
                }
            }
        }
        chain.doFilter(request, response);
    }

}
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EntryPointUnauthorizedHandler类

自定义了身份验证失败的返回值

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package com.security;

import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.AuthenticationEntryPoint;
import org.springframework.stereotype.Component;

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

/**
 * 自定401返回值
 *
 * @author hackyo
 * Created on 2017/12/9 20:10.
 */
@Component
public class EntryPointUnauthorizedHandler implements AuthenticationEntryPoint {

    @Override
    public void commence(HttpServletRequest request, HttpServletResponse response, AuthenticationException e) {
        response.setHeader("Access-Control-Allow-Origin", "*");
        response.setStatus(401);
    }

}
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RestAccessDeniedHandler类

自定了权限不足的返回值

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package com.security;

import org.springframework.security.access.AccessDeniedException;
import org.springframework.security.web.access.AccessDeniedHandler;
import org.springframework.stereotype.Component;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * 自定403返回值
 *
 * @author hackyo
 * Created on 2017/12/9 20:10.
 */
@Component
public class RestAccessDeniedHandler implements AccessDeniedHandler {

    @Override
    public void handle(HttpServletRequest request, HttpServletResponse response, AccessDeniedException e) {
        response.setHeader("Access-Control-Allow-Origin", "*");
        response.setStatus(403);
    }

}
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WebSecurityConfig类

安全配置类

这里设置了禁止访问所有地址，除了用于验证身份的/user/**地址

同时密码的加密方式为BCrypt

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package com.security;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpMethod;
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.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.security.web.authentication.UsernamePasswordAuthenticationFilter;

/**
 * 安全模块配置
 *
 * @author hackyo
 * Created on 2017/12/8 9:15.
 */
@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {

    private UserDetailsService userDetailsService;
    private JwtAuthenticationTokenFilter jwtAuthenticationTokenFilter;
    private EntryPointUnauthorizedHandler entryPointUnauthorizedHandler;
    private RestAccessDeniedHandler restAccessDeniedHandler;
    private PasswordEncoder passwordEncoder;

    @Autowired
    public WebSecurityConfig(UserDetailsService userDetailsService, JwtAuthenticationTokenFilter jwtAuthenticationTokenFilter, EntryPointUnauthorizedHandler entryPointUnauthorizedHandler, RestAccessDeniedHandler restAccessDeniedHandler) {
        this.userDetailsService = userDetailsService;
        this.jwtAuthenticationTokenFilter = jwtAuthenticationTokenFilter;
        this.entryPointUnauthorizedHandler = entryPointUnauthorizedHandler;
        this.restAccessDeniedHandler = restAccessDeniedHandler;
        this.passwordEncoder = new BCryptPasswordEncoder();
    }

    @Autowired
    public void configureAuthentication(AuthenticationManagerBuilder authenticationManagerBuilder) throws Exception {
        authenticationManagerBuilder.userDetailsService(this.userDetailsService).passwordEncoder(passwordEncoder);
    }

    @Override
    protected void configure(HttpSecurity httpSecurity) throws Exception {
        httpSecurity.csrf().disable().sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS)
                .and().authorizeRequests()
                .antMatchers(HttpMethod.OPTIONS, "/**").permitAll()
                .antMatchers("/user/**").permitAll()
                .anyRequest().authenticated()
                .and().headers().cacheControl();
        httpSecurity.addFilterBefore(jwtAuthenticationTokenFilter, UsernamePasswordAuthenticationFilter.class);
        httpSecurity.exceptionHandling().authenticationEntryPoint(entryPointUnauthorizedHandler).accessDeniedHandler(restAccessDeniedHandler);

    }

}
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IUserService类

定义用户的基本操作

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package com.service;

import com.domain.User;

/**
 * 用户操作接口
 *
 * @author hackyo
 * Created on 2017/12/3 11:53.
 */
public interface IUserService {

    /**
     * 用户登录
     *
     * @param username 用户名
     * @param password 密码
     * @return 操作结果
     */
    String login(String username, String password);

    /**
     * 用户注册
     *
     * @param user 用户信息
     * @return 操作结果
     */
    String register(User user);

    /**
     * 刷新密钥
     *
     * @param oldToken 原密钥
     * @return 新密钥
     */
    String refreshToken(String oldToken);

}
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UserServiceImpl类

IUserService的实现类，注册时会将用户权限设置为ROLE_USER，同时将密码使用BCrypt加密

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package com.service.impl;

import com.dao.IUserRepository;
import com.domain.User;
import com.security.JwtTokenUtil;
import com.service.IUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.stereotype.Service;

import java.util.ArrayList;
import java.util.List;

/**
 * 用户操作接口实现
 *
 * @author hackyo
 * Created on 2017/12/3 11:53.
 */
@Service
public class UserServiceImpl implements IUserService {

    private AuthenticationManager authenticationManager;
    private UserDetailsService userDetailsService;
    private JwtTokenUtil jwtTokenUtil;
    private IUserRepository userRepository;

    @Autowired
    public UserServiceImpl(AuthenticationManager authenticationManager, UserDetailsService userDetailsService, JwtTokenUtil jwtTokenUtil, IUserRepository userRepository) {
        this.authenticationManager = authenticationManager;
        this.userDetailsService = userDetailsService;
        this.jwtTokenUtil = jwtTokenUtil;
        this.userRepository = userRepository;
    }

    @Override
    public String login(String username, String password) {
        UsernamePasswordAuthenticationToken upToken = new UsernamePasswordAuthenticationToken(username, password);
        Authentication authentication = authenticationManager.authenticate(upToken);
        SecurityContextHolder.getContext().setAuthentication(authentication);
        UserDetails userDetails = userDetailsService.loadUserByUsername(username);
        return jwtTokenUtil.generateToken(userDetails);
    }

    @Override
    public String register(User user) {
        String username = user.getUsername();
        if (userRepository.findByUsername(username) != null) {
            return "用户已存在";
        }
        BCryptPasswordEncoder encoder = new BCryptPasswordEncoder();
        String rawPassword = user.getPassword();
        user.setPassword(encoder.encode(rawPassword));
        List<String> roles = new ArrayList<>();
        roles.add("ROLE_USER");
        user.setRoles(roles);
        userRepository.insert(user);
        return "success";
    }

    @Override
    public String refreshToken(String oldToken) {
        String token = oldToken.substring("Bearer ".length());
        if (!jwtTokenUtil.isTokenExpired(token)) {
            return jwtTokenUtil.refreshToken(token);
        }
        return "error";
    }

}
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UserController类

控制器，控制访问

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package com.controller;

import com.domain.User;
import com.service.IUserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.AuthenticationException;
import org.springframework.web.bind.annotation.*;


/**
 * 用户管理Controller
 *
 * @author hackyo
 * Created on 2017/12/3 11:53.
 */
@CrossOrigin
@RestController
@RequestMapping(value = "/user", produces = "text/html;charset=UTF-8")
public class UserController {

    private IUserService userService;

    @Autowired
    public UserController(IUserService userService) {
        this.userService = userService;
    }

    /**
     * 用户登录
     *
     * @param username 用户名
     * @param password 密码
     * @return 操作结果
     * @throws AuthenticationException 错误信息
     */
    @PostMapping(value = "/login", params = {"username", "password"})
    public String getToken(String username, String password) throws AuthenticationException {
        return userService.login(username, password);
    }

    /**
     * 用户注册
     *
     * @param user          用户信息
     * @return 操作结果
     * @throws AuthenticationException 错误信息
     */
    @PostMapping(value = "/register")
    public String register(User user) throws AuthenticationException {
        return userService.register(user);
    }

    /**
     * 刷新密钥
     *
     * @param authorization 原密钥
     * @return 新密钥
     * @throws AuthenticationException 错误信息
     */
    @GetMapping(value = "/refreshToken")
    public String refreshToken(@RequestHeader String authorization) throws AuthenticationException {
        return userService.refreshToken(authorization);
    }

}
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使用

只需要在方法或类上加注解即可实现账号控制

例如，我们想控制该方法只允许用户本人使用，#号表示方法的参数，可以在参数中加上@P('name')来指定名称，同时也可直接使用模型，如user.username等

总之，其中可以写入任何Spring EL

@PreAuthorize("#username == authentication.name")
    @GetMapping(value = "/getInfo")
    public String getInfo(String username) {
        return JSON.toJSONString(userService.getInfo(username));
    }

另外也可以自定义控制注解，使用@PostFilter注解，并实现hasPermission类即可，同时需要在WebSecurityConfigurerAdapter中开启。

测试

运行程序后，我们使用Postman进行测试

1.注册

URL：http://localhost:8080/user/register

参数：username、password

返回success即为成功

 2.登录

URL：http://localhost:8080/user/login

参数：username、password

可以看到服务器将我们的Token返回了

 3.刷新Token

URL（GET方法）：http://localhost:8080/user/refreshToken

参数：在Header中加入登录时返回的Token，注意，需要在Token前加上“Bearer ”，最后有个空格

Authorization：Bearer eyJhbGciOiJIUzUxMiJ9.eyJleHAiOjE1MTMzMTE1NjMsInN1YiI6IjEyMyIsImNyZWF0ZWQiOjE1MTI3MDY3NjM3NjB9.baiY8QcbJgq4FQMC2piN1smbW57WjDDTiRVIL9hJeC_DcPgcyJweWqkS6g7825mPKFlByuUx7XN8nUOIszDVcw

可以看到服务器给我们返回了新的Token，如果我们不加上Token的话，将无法访问

参考：

　　http://www.jianshu.com/p/6307c89fe3fa

　　http://www.jianshu.com/p/4468a2fff879

本文转载自

原文作者：Hackyo

原文链接：https://www.cnblogs.com/hackyo/p/8004928.html

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原文地址：https://www.cnblogs.com/xifengxiaoma/p/9508495.html