{"id":16305,"date":"2024-03-16T03:50:18","date_gmt":"2024-03-15T18:50:18","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/springboot%e3%81%a8jwt%e3%82%92%e7%b5%84%e3%81%bf%e5%90%88%e3%82%8f%e3%81%9b%e3%81%a6%e3%80%81%e3%83%a6%e3%83%bc%e3%82%b6%e3%83%bc%e3%83%ad%e3%82%b0%e3%82%a4%e3%83%b3%e6%a9%9f%e8%83%bd%e3%82%92\/"},"modified":"2025-08-06T06:34:56","modified_gmt":"2025-08-05T21:34:56","slug":"springboot%e3%81%a8jwt%e3%82%92%e7%b5%84%e3%81%bf%e5%90%88%e3%82%8f%e3%81%9b%e3%81%a6%e3%80%81%e3%83%a6%e3%83%bc%e3%82%b6%e3%83%bc%e3%83%ad%e3%82%b0%e3%82%a4%e3%83%b3%e6%a9%9f%e8%83%bd%e3%82%92","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/springboot%e3%81%a8jwt%e3%82%92%e7%b5%84%e3%81%bf%e5%90%88%e3%82%8f%e3%81%9b%e3%81%a6%e3%80%81%e3%83%a6%e3%83%bc%e3%82%b6%e3%83%bc%e3%83%ad%e3%82%b0%e3%82%a4%e3%83%b3%e6%a9%9f%e8%83%bd%e3%82%92\/","title":{"rendered":"SpringBoot\u3068JWT\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u3001\u30e6\u30fc\u30b6\u30fc\u30ed\u30b0\u30a4\u30f3\u6a5f\u80fd\u3092\u5b9f\u88c5\u3059\u308b\u65b9\u6cd5\u306f\u4f55\u3067\u3059\u304b\uff1f"},"content":{"rendered":"

SpringBoot\u3068JWT\u3092\u7d44\u307f\u5408\u308f\u305b\u3066\u30e6\u30fc\u30b6\u30fc\u30ed\u30b0\u30a4\u30f3\u6a5f\u80fd\u3092\u5b9f\u73fe\u3059\u308b\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u624b\u9806\u306b\u5f93\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\uff1a<\/p>\n

    \n
  1. pom.xml\u30d5\u30a1\u30a4\u30eb<\/li>\n<\/ol>\n
    <dependency<\/span>><\/span>\r\n    <groupId<\/span>><\/span>org.springframework.boot<\/groupId<\/span>><\/span>\r\n    <artifactId<\/span>><\/span>spring-boot-starter-security<\/artifactId<\/span>><\/span>\r\n<\/dependency<\/span>><\/span>\r\n\r\n<dependency<\/span>><\/span>\r\n    <groupId<\/span>><\/span>io.jsonwebtoken<\/groupId<\/span>><\/span>\r\n    <artifactId<\/span>><\/span>jjwt<\/artifactId<\/span>><\/span>\r\n    <version<\/span>><\/span>0.9.1<\/version<\/span>><\/span>\r\n<\/dependency<\/span>><\/span>\r\n<\/code><\/pre>\n
      \n
    1. \u30e6\u30fc\u30b6\u30fc\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u3092\u4f5c\u6210\u3057\u307e\u3059\uff1a\u30e6\u30fc\u30b6\u30fc\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u30af\u30e9\u30b9\u3092\u4f5c\u6210\u3057\u3001\u30e6\u30fc\u30b6\u30fc\u540d\u3084\u30d1\u30b9\u30ef\u30fc\u30c9\u306a\u3069\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u542b\u3081\u307e\u3059\u3002<\/li>\n<\/ol>\n
      public<\/span> class<\/span> User<\/span> {\r\n    private<\/span> String username;\r\n    private<\/span> String password;\r\n\r\n    \/\/ getter and setter<\/span>\r\n}\r\n<\/code><\/pre>\n
        \n
      1. \u30e6\u30fc\u30b6\u30fc\u306e\u8a73\u7d30\u60c5\u5831\u3092\u53d6\u5f97\u3059\u308b\u30b5\u30fc\u30d3\u30b9<\/li>\n<\/ol>\n
        @Service<\/span>\r\npublic<\/span> class<\/span> UserDetailsServiceImpl<\/span> implements<\/span> UserDetailsService<\/span> {\r\n\r\n    @Override<\/span>\r\n    public<\/span> UserDetails loadUserByUsername<\/span>(String username)<\/span> throws<\/span> UsernameNotFoundException {\r\n        \/\/ \u4ece\u6570\u636e\u5e93\u6216\u5176\u4ed6\u6570\u636e\u6e90\u52a0\u8f7d\u7528\u6237\u4fe1\u606f<\/span>\r\n        User<\/span> user<\/span> =<\/span> userRepository.findByUsername(username);\r\n        if<\/span> (user == null<\/span>) {\r\n            throw<\/span> new<\/span> UsernameNotFoundException<\/span>(\"User not found\"<\/span>);\r\n        }\r\n        return<\/span> new<\/span> org<\/span>.springframework.security.core.userdetails.User(user.getUsername(), user.getPassword(), new<\/span> ArrayList<\/span><>());\r\n    }\r\n}\r\n<\/code><\/pre>\n
          \n
        1. \u30ed\u30b0\u30a4\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u3092\u4f5c\u6210\u3057\u3066\u304f\u3060\u3055\u3044\uff1a\u30e6\u30fc\u30b6\u30fc\u306e\u30ed\u30b0\u30a4\u30f3\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u51e6\u7406\u3059\u308b\u305f\u3081\u306e\u30ed\u30b0\u30a4\u30f3\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u30af\u30e9\u30b9\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n
          @RestController<\/span>\r\npublic<\/span> class<\/span> LoginController<\/span> {\r\n\r\n    @Autowired<\/span>\r\n    private<\/span> AuthenticationManager authenticationManager;\r\n    @Autowired<\/span>\r\n    private<\/span> JwtUtils jwtUtils;\r\n\r\n    @PostMapping(\"\/login\")<\/span>\r\n    public<\/span> ResponseEntity<?> login(@RequestBody<\/span> User user) {\r\n        try<\/span> {\r\n            authenticationManager.authenticate(new<\/span> UsernamePasswordAuthenticationToken<\/span>(user.getUsername(), user.getPassword()));\r\n            String<\/span> token<\/span> =<\/span> jwtUtils.generateToken(user.getUsername());\r\n            return<\/span> ResponseEntity.ok(token);\r\n        } catch<\/span> (Exception e) {\r\n            return<\/span> ResponseEntity.status(HttpStatus.UNAUTHORIZED).build();\r\n        }\r\n    }\r\n}\r\n<\/code><\/pre>\n
            \n
          1. JWT\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u30af\u30e9\u30b9\u3092\u4f5c\u6210\u3059\u308b\uff1aJWT\u3092\u751f\u6210\u304a\u3088\u3073\u89e3\u6790\u3059\u308b\u305f\u3081\u306eJWT\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u30af\u30e9\u30b9\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n
            @Component<\/span>\r\npublic<\/span> class<\/span> JwtUtils<\/span> {\r\n\r\n    private<\/span> final<\/span> String<\/span> secret<\/span> =<\/span> \"your-secret-key\"<\/span>;\r\n    private<\/span> final<\/span> long<\/span> expiration<\/span> =<\/span> 86400000<\/span>;\r\n\r\n    public<\/span> String generateToken<\/span>(String username)<\/span> {\r\n        Date<\/span> now<\/span> =<\/span> new<\/span> Date<\/span>();\r\n        Date<\/span> expiryDate<\/span> =<\/span> new<\/span> Date<\/span>(now.getTime() + expiration);\r\n\r\n        return<\/span> Jwts.builder()\r\n                .setSubject(username)\r\n                .setIssuedAt(now)\r\n                .setExpiration(expiryDate)\r\n                .signWith(SignatureAlgorithm.HS512, secret)\r\n                .compact();\r\n    }\r\n\r\n    public<\/span> String getUsernameFromToken<\/span>(String token)<\/span> {\r\n        return<\/span> Jwts.parser()\r\n                .setSigningKey(secret)\r\n                .parseClaimsJws(token)\r\n                .getBody()\r\n                .getSubject();\r\n    }\r\n\r\n    public<\/span> boolean<\/span> isTokenValid<\/span>(String token, UserDetails userDetails)<\/span> {\r\n        String<\/span> username<\/span> =<\/span> getUsernameFromToken(token);\r\n        return<\/span> (username.equals(userDetails.getUsername()) && !isTokenExpired(token));\r\n    }\r\n\r\n    private<\/span> boolean<\/span> isTokenExpired<\/span>(String token)<\/span> {\r\n        Date<\/span> expirationDate<\/span> =<\/span> Jwts.parser()\r\n                .setSigningKey(secret)\r\n                .parseClaimsJws(token)\r\n                .getBody()\r\n                .getExpiration();\r\n        return<\/span> expirationDate.before(new<\/span> Date<\/span>());\r\n    }\r\n}\r\n<\/code><\/pre>\n
              \n
            1. \u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb<\/li>\n<\/ol>\n
              spring.security.user.name<\/span>=admin<\/span>\r\nspring.security.user.password<\/span>=admin<\/span>\r\nspring.security.user.roles<\/span>=USER,ADMIN<\/span>\r\n<\/code><\/pre>\n
                \n
              1. JWT\u30d5\u30a3\u30eb\u30bf\u30fc\u3092\u8a2d\u5b9a\u3059\u308b\uff1aJWT\u3092\u691c\u8a3c\u3057\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u306b\u8a8d\u8a3c\u60c5\u5831\u3092\u8a2d\u5b9a\u3059\u308b\u305f\u3081\u306eJWT\u30d5\u30a3\u30eb\u30bf\u30fc\u30af\u30e9\u30b9\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/li>\n<\/ol>\n
                @Component<\/span>\r\npublic<\/span> class<\/span> JwtTokenFilter<\/span> extends<\/span> OncePerRequestFilter<\/span> {\r\n\r\n    @Autowired<\/span>\r\n    private<\/span> JwtUtils jwtUtils;\r\n    @Autowired<\/span>\r\n    private<\/span> UserDetailsServiceImpl userDetailsService;\r\n\r\n    @Override<\/span>\r\n    protected<\/span> void<\/span> doFilterInternal<\/span>(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain)<\/span> throws<\/span> ServletException, IOException {\r\n        String<\/span> header<\/span> =<\/span> request.getHeader(\"Authorization\"<\/span>);\r\n\r\n        if<\/span> (StringUtils.hasText(header) && header.startsWith(\"Bearer \"<\/span>)) {\r\n            String<\/span> token<\/span> =<\/span> header.substring(7<\/span>);\r\n            String<\/span> username<\/span> =<\/span> jwtUtils.getUsernameFromToken(token);\r\n\r\n            if<\/span> (StringUtils.hasText(username) && SecurityContextHolder.getContext().getAuthentication() == null<\/span>) {\r\n                UserDetails<\/span> userDetails<\/span> =<\/span> userDetailsService.loadUserByUsername(username);\r\n\r\n                if<\/span> (jwtUtils.isTokenValid(token, userDetails)) {\r\n                    UsernamePasswordAuthenticationToken<\/span> authenticationToken<\/span> =<\/span> new<\/span> UsernamePasswordAuthenticationToken<\/span>(userDetails, null<\/span>, userDetails.getAuthorities());\r\n                    authenticationToken.setDetails(new<\/span> WebAuthenticationDetailsSource<\/span>().buildDetails(request));\r\n                    SecurityContextHolder.getContext().setAuthentication(authenticationToken);\r\n                }\r\n            }\r\n        }\r\n\r\n        filterChain.doFilter(request, response);\r\n    }\r\n}\r\n<\/code><\/pre>\n
                  \n
                1. Spring Security\u306e\u8a2d\u5b9a<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"
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