Spring Boot Security And JSON Web Token

Spring Boot Security And JSON Web Token 说明

流程说明

何时生成和使用jwt，其实我们主要是token更有意义并携带一些信息

https://github.com/Ants-double/huanhuncao/tree/master/visio

实操准备

新建一个spring boot 项目，并添加hello请求

工程目录结构如下

jwt01

HelloWorldController 代码如下

package com.antsdouble.demojwt.controller;

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class HelloWorldController {

    @GetMapping(value = {"/hello"})
    public String hello() {
        return "Hello World JWT";
    }
}

请求结果

web

post

配置Spring Security 和JWT

完整的pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.2.0.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.antsdouble</groupId>
    <artifactId>demo-jwt</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>demo-jwt</name>
    <description>Demo project for Spring Boot</description>
    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </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>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
        </dependency>
        <dependency>
            <groupId>io.jsonwebtoken</groupId>
            <artifactId>jjwt</artifactId>
            <version>0.9.1</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

生成jwt

https://github.com/Ants-double/huanhuncao/tree/master/visio
```
如果请求authenticate 则会生成jwt
```
检证 jwt

https://github.com/Ants-double/huanhuncao/tree/master/visio

   1. 请求业务接口带上jwt 先验证通过后再处理具体的请求

check

配置数据库相关

application.yml

 jwt:
       secret: javainuse
     spring:
       datasource:
         url: jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf-8&useSSL=false&serverTimezone=CTT
         username: root
         password: 456123
         platform: mysql
       jpa:
         hibernate:
           ddl-auto: create-drop

添加对应的DTO 和DAO

package com.antsdouble.demojwt.model;

/**
 * @author lyy
 * @Deprecated
 * @date 2019/10/17
 */
public class UserDTO {
    private String username;
    private String password;

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }
}

package com.antsdouble.demojwt.dao;

import com.antsdouble.demojwt.model.DAOUser;
import org.springframework.data.repository.CrudRepository;
import org.springframework.stereotype.Repository;

/**
 * @author lyy
 * @Deprecated
 * @date 2019/10/17
 */

@Repository
public interface UserDao extends CrudRepository<DAOUser, Integer> {
    DAOUser findByUsername(String username);
}

JwtAuthenticationController

package com.antsdouble.demojwt.controller;

import com.antsdouble.demojwt.config.JwtTokenUtil;
import com.antsdouble.demojwt.model.JwtRequest;
import com.antsdouble.demojwt.model.JwtResponse;
import com.antsdouble.demojwt.model.UserDTO;
import com.antsdouble.demojwt.service.JwtUserDetailsService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.ResponseEntity;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.authentication.BadCredentialsException;
import org.springframework.security.authentication.DisabledException;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.web.bind.annotation.*;

/**
 * @author lyy
 * @Deprecated
 * @date 2019/10/17
 */
@RestController
@CrossOrigin
public class JwtAuthenticationController {
    @Autowired
    private AuthenticationManager authenticationManager;
    @Autowired
    private JwtTokenUtil jwtTokenUtil;
    @Autowired
    private JwtUserDetailsService userDetailsService;
    @RequestMapping(value = "/authenticate", method = RequestMethod.POST)
    public ResponseEntity<?> createAuthenticationToken(@RequestBody JwtRequest authenticationRequest) throws Exception {
        authenticate(authenticationRequest.getUsername(), authenticationRequest.getPassword());
        final UserDetails userDetails = userDetailsService
                .loadUserByUsername(authenticationRequest.getUsername());
        final String token = jwtTokenUtil.generateToken(userDetails);
        return ResponseEntity.ok(new JwtResponse(token));
    }
    @RequestMapping(value = "/register", method = RequestMethod.POST)
    public ResponseEntity<?> saveUser(@RequestBody UserDTO user) throws Exception {
        return ResponseEntity.ok(userDetailsService.save(user));
    }
    private void authenticate(String username, String password) throws Exception {
        try {
            authenticationManager.authenticate(new UsernamePasswordAuthenticationToken(username, password));
        } catch (DisabledException e) {
            throw new Exception("USER_DISABLED", e);
        } catch (BadCredentialsException e) {
            throw new Exception("INVALID_CREDENTIALS", e);
        }
    }
}

WebSecurityConfig

package com.antsdouble.demojwt.config;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpMethod;
import org.springframework.security.authentication.AuthenticationManager;
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;

/**
 * @author lyy
 * @Deprecated
 * @date 2019/10/17
 */
@Configuration
@EnableWebSecurity
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
    @Autowired
    private JwtAuthenticationEntryPoint jwtAuthenticationEntryPoint;
    @Autowired
    private UserDetailsService jwtUserDetailsService;
    @Autowired
    private JwtRequestFilter jwtRequestFilter;
    @Autowired
    public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
// configure AuthenticationManager so that it knows from where to load
// user for matching credentials
// Use BCryptPasswordEncoder
        auth.userDetailsService(jwtUserDetailsService).passwordEncoder(passwordEncoder());
    }
    @Bean
    public PasswordEncoder passwordEncoder() {
        return new BCryptPasswordEncoder();
    }
    @Bean
    @Override
    public AuthenticationManager authenticationManagerBean() throws Exception {
        return super.authenticationManagerBean();
    }
    @Override
    protected void configure(HttpSecurity httpSecurity) throws Exception {
// We don't need CSRF for this example
        httpSecurity.csrf().disable()
// dont authenticate this particular request
                .authorizeRequests().antMatchers("/authenticate", "/register").
                permitAll().antMatchers(HttpMethod.OPTIONS, "/**")
    .permitAll().
// all other requests need to be authenticated
        anyRequest().authenticated().and().
// make sure we use stateless session; session won't be used to
// store user's state.
        exceptionHandling().authenticationEntryPoint(jwtAuthenticationEntryPoint).and().sessionManagement()
                .sessionCreationPolicy(SessionCreationPolicy.STATELESS);
// Add a filter to validate the tokens with every request
        httpSecurity.addFilterBefore(jwtRequestFilter, UsernamePasswordAuthenticationFilter.class);
    }
}

JwtTokenUtil

package com.antsdouble.demojwt.config;

import io.jsonwebtoken.Claims;
import io.jsonwebtoken.Jwts;
import io.jsonwebtoken.SignatureAlgorithm;
import org.springframework.beans.factory.annotation.Value;
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;
import java.util.function.Function;

/**
 * @author lyy
 * @Deprecated
 * @date 2019/10/17
 */
@Component
public class JwtTokenUtil  implements Serializable {
    private static final long serialVersionUID = -2550185165626007488L;
    public static final long JWT_TOKEN_VALIDITY = 5 * 60 * 60;
    @Value("${jwt.secret}")
    private String secret;

    //retrieve username from jwt token
    public String getUsernameFromToken(String token) {
        return getClaimFromToken(token, Claims::getSubject);
    }

    //retrieve expiration date from jwt token
    public Date getExpirationDateFromToken(String token) {
        return getClaimFromToken(token, Claims::getExpiration);
    }

    public <T> T getClaimFromToken(String token, Function<Claims, T> claimsResolver) {
        final Claims claims = getAllClaimsFromToken(token);
        return claimsResolver.apply(claims);
    }

    //for retrieveing any information from token we will need the secret key
    private Claims getAllClaimsFromToken(String token) {
        return Jwts.parser().setSigningKey(secret).parseClaimsJws(token).getBody();
    }

    //check if the token has expired
    private Boolean isTokenExpired(String token) {
        final Date expiration = getExpirationDateFromToken(token);
        return expiration.before(new Date());
    }

    //generate token for user
    public String generateToken(UserDetails userDetails) {
        Map<String, Object> claims = new HashMap<>();
        return doGenerateToken(claims, userDetails.getUsername());
    }

    //while creating the token -
//1. Define  claims of the token, like Issuer, Expiration, Subject, and the ID
//2. Sign the JWT using the HS512 algorithm and secret key.
//3. According to JWS Compact Serialization(https://tools.ietf.org/html/draft-ietf-jose-json-web-signature-41#section-3.1)
//   compaction of the JWT to a URL-safe string
    private String doGenerateToken(Map<String, Object> claims, String subject) {
        return Jwts.builder().setClaims(claims).setSubject(subject).setIssuedAt(new Date(System.currentTimeMillis()))
                .setExpiration(new Date(System.currentTimeMillis() + JWT_TOKEN_VALIDITY * 1000))
                .signWith(SignatureAlgorithm.HS512, secret).compact();
    }

    //validate token
    public Boolean validateToken(String token, UserDetails userDetails) {
        final String username = getUsernameFromToken(token);
        return (username.equals(userDetails.getUsername()) && !isTokenExpired(token));
    }
}

JwtRequestFilter

package com.antsdouble.demojwt.config;

import com.antsdouble.demojwt.service.JwtUserDetailsService;
import io.jsonwebtoken.ExpiredJwtException;
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.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;

/**
 * @author lyy
 * @Deprecated
 * @date 2019/10/17
 */
@Component
public class JwtRequestFilter extends OncePerRequestFilter {
    @Autowired
    private JwtUserDetailsService jwtUserDetailsService;
    @Autowired
    private JwtTokenUtil jwtTokenUtil;

    @Override
    protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain chain)
            throws ServletException, IOException {
        final String requestTokenHeader = request.getHeader("Authorization");
        String username = null;
        String jwtToken = null;
// JWT Token is in the form "Bearer token". Remove Bearer word and get
// only the Token
        if (requestTokenHeader != null && requestTokenHeader.startsWith("Bearer ")) {
            jwtToken = requestTokenHeader.substring(7);
            try {
                username = jwtTokenUtil.getUsernameFromToken(jwtToken);
            } catch (IllegalArgumentException e) {
                System.out.println("Unable to get JWT Token");
            } catch (ExpiredJwtException e) {
                System.out.println("JWT Token has expired");
            }
            catch (Exception e){
                System.out.println(e);
            }
        } else {
            logger.warn("JWT Token does not begin with Bearer String");
        }
// Once we get the token validate it.
        if (username != null && SecurityContextHolder.getContext().getAuthentication() == null) {
            UserDetails userDetails = this.jwtUserDetailsService.loadUserByUsername(username);
// if token is valid configure Spring Security to manually set
// authentication
            if (jwtTokenUtil.validateToken(jwtToken, userDetails)) {
                UsernamePasswordAuthenticationToken usernamePasswordAuthenticationToken = new UsernamePasswordAuthenticationToken(
                        userDetails, null, userDetails.getAuthorities());
                usernamePasswordAuthenticationToken
                        .setDetails(new WebAuthenticationDetailsSource().buildDetails(request));
// After setting the Authentication in the context, we specify
// that the current user is authenticated. So it passes the
// Spring Security Configurations successfully.
                SecurityContextHolder.getContext().setAuthentication(usernamePasswordAuthenticationToken);
            }
        }
        chain.doFilter(request, response);
    }
}

JwtAuthenticationEntryPoint

package com.antsdouble.demojwt.config;

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;
import java.io.IOException;
import java.io.Serializable;

/**
 * @author lyy
 * @Deprecated
 * @date 2019/10/17
 */
@Component
public class JwtAuthenticationEntryPoint implements AuthenticationEntryPoint, Serializable {

    private static final long serialVersionUID = -7858869558953243875L;
    @Override
    public void commence(HttpServletRequest request, HttpServletResponse response,
                         AuthenticationException authException) throws IOException {
        response.sendError(HttpServletResponse.SC_UNAUTHORIZED, "Unauthorized");
    }
}

请求测试
- localhost:8080/register
- localhost:8080/authenticate
- localhost:8080/hello

参考文档

源码地址 https://github.com/Ants-double/renshenguo/tree/master/demo-jwt

https://dzone.com/articles/spring-boot-security-json-web-tokenjwt-hello-world

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原文地址：https://www.cnblogs.com/ants_double/p/11691476.html