\n1. \uc11c\ub860<\/h2>\n
\ucd5c\uadfc \ub9c8\uc774\ud06c\ub85c\uc11c\ube44\uc2a4 \uc544\ud0a4\ud14d\ucc98\uc640 RESTful API\uc758 \ubc1c\uc804\uc73c\ub85c \uc778\ud574 \ubc31\uc5d4\ub4dc \uac1c\ubc1c\uc758 \uc911\uc694\uc131\uc774 \ub354\uc6b1 \ubd80\uac01\ub418\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc624\ub298 \uac15\uc88c\uc5d0\uc11c\ub294 \uc2a4\ud504\ub9c1 \ubd80\ud2b8\ub97c \uc774\uc6a9\ud55c \ubc31\uc5d4\ub4dc \uac1c\ubc1c\uc744 \ud1b5\ud574 JSON Web Token(JWT)\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc0ac\uc6a9\uc790 \uc778\uc99d\uc744 \uad6c\ud604\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \uc774 \uac15\uc88c\ub294 \ub85c\uadf8\uc778 \ubc0f \ub85c\uadf8\uc544\uc6c3 \uae30\ub2a5\uc744 \ud3ec\ud568\ud55c JWT \uae30\ubc18\uc758 \ud1a0\ud070 \uc81c\uacf5\uc790\ub97c \ucd94\uac00\ud558\ub294 \uac83\uc5d0 \uc911\uc810\uc744 \ub450\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/section>\n\n2. \uc2a4\ud504\ub9c1 \ubd80\ud2b8\ub780?<\/h2>\n
\uc2a4\ud504\ub9c1 \ubd80\ud2b8\ub294 \uc2a4\ud504\ub9c1 \ud504\ub808\uc784\uc6cc\ud06c\ub97c \uae30\ubc18\uc73c\ub85c \ud558\uc5ec \ube60\ub974\uace0 \uc27d\uac8c \uc2a4\ud504\ub9c1 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uac1c\ubc1c\ud560 \uc218 \uc788\ub3c4\ub85d \ub3d5\ub294 \ub3c4\uad6c\uc785\ub2c8\ub2e4. \ubcf5\uc7a1\ud55c XML \uc124\uc815 \uc5c6\uc774 \ub370\ubaa8 \ubc0f \uc2e4\uc81c \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uc190\uc27d\uac8c \uac1c\ubc1c\ud560 \uc218 \uc788\uac8c \ud574\uc90d\ub2c8\ub2e4. \ub610\ud55c, \uc2a4\ud504\ub9c1 \ubd80\ud2b8\ub294 \ub0b4\uc7a5\ud615 \uc11c\ubc84\ub97c \uc9c0\uc6d0\ud558\uc5ec \uc678\ubd80 \uc11c\ubc84\uc5d0 \ubc30\ud3ec\ud558\uc9c0 \uc54a\uace0\ub3c4 \ub85c\uceec\uc5d0\uc11c \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc744 \uc2e4\ud589\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/section>\n\n3. JWT\uc758 \uc774\ud574<\/h2>\n
JSON Web Token(JWT)\uc740 \ub370\uc774\ud130 \uc804\uc1a1\uc744 \uc704\ud55c \uac1c\ubc29\ud615 \ud45c\uc900\uc73c\ub85c, \ud074\ub77c\uc774\uc5b8\ud2b8\uc640 \uc11c\ubc84 \uac04\uc5d0 \uc548\uc804\ud558\uac8c \uc815\ubcf4\ub97c \uc804\uc1a1\ud558\ub294 \ub370 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. JWT\ub294 \uc8fc\ub85c \uc778\uc99d \ubc0f \uc815\ubcf4 \uad50\ud658\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4. JWT\ub294 \uc138 \ubd80\ubd84\uc73c\ub85c \uad6c\uc131\ub429\ub2c8\ub2e4:<\/p>\n
\n- Header (\ud5e4\ub354)<\/strong>: \ud1a0\ud070\uc758 \uc720\ud615\uacfc \uc554\ud638\ud654 \uc54c\uace0\ub9ac\uc998\uc744 \uc815\uc758\ud569\ub2c8\ub2e4.<\/li>\n
- Payload (\ud398\uc774\ub85c\ub4dc)<\/strong>: \uc0ac\uc6a9\uc790 \uc815\ubcf4\ub97c \uc800\uc7a5\ud558\ub294 \ubd80\ubd84\uc73c\ub85c, \uc0ac\uc6a9\uc790 ID\uc640 \uac19\uc740 \uc815\ubcf4\uac00 \ud3ec\ud568\ub429\ub2c8\ub2e4.<\/li>\n
- Signature (\uc11c\uba85)<\/strong>: \ud5e4\ub354\uc640 \ud398\uc774\ub85c\ub4dc\ub97c \uc870\ud569\ud558\uc5ec \ube44\ubc00 \ud0a4\ub85c \uc11c\uba85\ud55c \ubd80\ubd84\uc785\ub2c8\ub2e4.<\/li>\n<\/ul>\n<\/section>\n\n
4. \uc2a4\ud504\ub9c1 \ubd80\ud2b8 \ud504\ub85c\uc81d\ud2b8 \uc124\uc815<\/h2>\n
\uc6b0\uc120, \uc2a4\ud504\ub9c1 \ubd80\ud2b8 \ud504\ub85c\uc81d\ud2b8\ub97c \uc124\uc815\ud574\uc57c \ud569\ub2c8\ub2e4. Spring Initializr \uc6f9\uc0ac\uc774\ud2b8\ub97c \ubc29\ubb38\ud558\uc5ec \uc0c8 \ud504\ub85c\uc81d\ud2b8\ub97c \uc0dd\uc131\ud569\ub2c8\ub2e4. \ub2e4\uc74c\uc758 \uc885\uc18d\uc131\uc744 \ucd94\uac00\ud574\uc57c \ud569\ub2c8\ub2e4:<\/p>\n
\n- Spring Web<\/li>\n
- Spring Security<\/li>\n
- Spring Data JPA<\/li>\n
- H2 Database (\ub610\ub294 \uc6d0\ud558\ub294 \ub370\uc774\ud130\ubca0\uc774\uc2a4)<\/li>\n
- jjwt (JWT \uc0ac\uc6a9\uc744 \uc704\ud55c \ub77c\uc774\ube0c\ub7ec\ub9ac)<\/li>\n<\/ul>\n<\/section>\n\n
5. \uc0ac\uc6a9\uc790\uc758 \uc5d4\ud2f0\ud2f0 \ud074\ub798\uc2a4 \uc0dd\uc131<\/h2>\n
\uc0ac\uc6a9\uc790 \uc815\ubcf4\ub97c \uc800\uc7a5\ud558\uae30 \uc704\ud55c \uc5d4\ud2f0\ud2f0 \ud074\ub798\uc2a4\ub97c \uc0dd\uc131\ud569\ub2c8\ub2e4. \ub2e4\uc74c\uc740 User \uc5d4\ud2f0\ud2f0 \ud074\ub798\uc2a4\uc758 \uc608\uc785\ub2c8\ub2e4:<\/p>\n
\n\n@Entity\npublic class User {\n @Id\n @GeneratedValue(strategy = GenerationType.IDENTITY)\n private Long id;\n\n @Column(unique = true)\n private String username;\n\n private String password;\n\n \/\/ Getter and Setter methods\n}\n<\/code>\n <\/pre>\n<\/section>\n\n6. JWT \uc720\ud2f8\ub9ac\ud2f0 \ud074\ub798\uc2a4 \uc791\uc131<\/h2>\n
JWT\ub97c \uc0dd\uc131\ud558\uace0 \uac80\uc99d\ud558\uae30 \uc704\ud55c \uc720\ud2f8\ub9ac\ud2f0 \ud074\ub798\uc2a4\ub97c \uc791\uc131\ud569\ub2c8\ub2e4.<\/p>\n
\n\n@Component\npublic class JwtUtil {\n private String secretKey = \"mySecretKey\"; \/\/ \ube44\ubc00 \ud0a4\n\n public String generateToken(String username) {\n return Jwts.builder()\n .setSubject(username)\n .setIssuedAt(new Date(System.currentTimeMillis()))\n .setExpiration(new Date(System.currentTimeMillis() + 10 * 60 * 1000)) \/\/ \ub9cc\ub8cc \uc2dc\uac04 \uc124\uc815\n .signWith(SignatureAlgorithm.HS256, secretKey)\n .compact();\n }\n\n public boolean validateToken(String token, String username) {\n final String extractedUsername = extractUsername(token);\n return (extractedUsername.equals(username) && !isTokenExpired(token));\n }\n\n public String extractUsername(String token) {\n return Jwts.parser().setSigningKey(secretKey).parseClaimsJws(token).getBody().getSubject();\n }\n\n private boolean isTokenExpired(String token) {\n return Jwts.parser().setSigningKey(secretKey).parseClaimsJws(token).getBody().getExpiration().before(new Date());\n }\n}\n<\/code>\n <\/pre>\n<\/section>\n\n7. \uc2a4\ud504\ub9c1 \uc2dc\ud050\ub9ac\ud2f0 \uc124\uc815<\/h2>\n
Spring Security\ub97c \uc124\uc815\ud558\uc5ec JWT \uae30\ubc18\uc758 \uc778\uc99d \ud504\ub85c\uc138\uc2a4\ub97c \uad6c\ud604\ud569\ub2c8\ub2e4. \uba3c\uc800, SecurityFilterChain\uc744 \uc124\uc815\ud569\ub2c8\ub2e4.<\/p>\n
\n\n@Configuration\n@EnableWebSecurity\npublic class SecurityConfig extends WebSecurityConfigurerAdapter {\n @Autowired\n private JwtRequestFilter jwtRequestFilter;\n\n @Override\n protected void configure(HttpSecurity http) throws Exception {\n http.csrf().disable()\n .authorizeRequests().antMatchers(\"\/authenticate\").permitAll()\n .anyRequest().authenticated();\n }\n\n @Override\n protected void configure(AuthenticationManagerBuilder auth) throws Exception {\n auth.inMemoryAuthentication().withUser(\"user\").password(passwordEncoder().encode(\"password\")).roles(\"USER\");\n }\n\n @Bean\n public PasswordEncoder passwordEncoder() {\n return new BCryptPasswordEncoder();\n }\n\n @Bean\n public AuthenticationManager authenticationManagerBean() throws Exception {\n return super.authenticationManagerBean();\n }\n}\n<\/code>\n <\/pre>\n<\/section>\n\n8. JWT \uc694\uccad \ud544\ud130 \uc791\uc131<\/h2>\n
\uc0ac\uc6a9\uc790 \uc694\uccad\uc5d0\uc11c JWT\ub97c \ud544\ud130\ub9c1\ud558\uc5ec \uc778\uc99d \uc5ec\ubd80\ub97c \ud655\uc778\ud558\ub294 JWT Request Filter\ub97c \uc791\uc131\ud569\ub2c8\ub2e4.<\/p>\n
\n\n@Component\npublic class JwtRequestFilter extends OncePerRequestFilter {\n @Autowired\n private JwtUtil jwtUtil;\n\n @Override\n protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain chain)\n throws ServletException, IOException {\n final String authorizationHeader = request.getHeader(\"Authorization\");\n\n String username = null;\n String jwt = null;\n\n if (authorizationHeader != null && authorizationHeader.startsWith(\"Bearer \")) {\n jwt = authorizationHeader.substring(7);\n username = jwtUtil.extractUsername(jwt);\n }\n\n if (username != null && SecurityContextHolder.getContext().getAuthentication() == null) {\n \/\/ \uba85\uc2dc\ub41c \uc0ac\uc6a9\uc790 \uc778\uc99d \ucc98\ub9ac\n }\n chain.doFilter(request, response);\n }\n}\n<\/code>\n <\/pre>\n<\/section>\n\n9. \ub85c\uadf8\uc778 \ubc0f \ud1a0\ud070 \uc0dd\uc131 \ucee8\ud2b8\ub864\ub7ec \uc791\uc131<\/h2>\n
\uc0ac\uc6a9\uc790\uc758 \ub85c\uadf8\uc778 \uc694\uccad\uc744 \ucc98\ub9ac\ud558\uace0, JWT\ub97c \uc0dd\uc131\ud558\ub294 \ucee8\ud2b8\ub864\ub7ec\ub97c \uc791\uc131\ud569\ub2c8\ub2e4.<\/p>\n
\n\n@RestController\npublic class AuthController {\n @Autowired\n private AuthenticationManager authenticationManager;\n\n @Autowired\n private JwtUtil jwtUtil;\n\n @PostMapping(\"\/authenticate\")\n public ResponseEntity authenticate(@RequestBody AuthRequest authRequest) throws Exception {\n try {\n authenticationManager.authenticate(new UsernamePasswordAuthenticationToken(authRequest.getUsername(), authRequest.getPassword()));\n } catch (BadCredentialsException e) {\n throw new Exception(\"\uc798\ubabb\ub41c \uc0ac\uc6a9\uc790 \uc774\ub984 \ub610\ub294 \ube44\ubc00\ubc88\ud638\", e);\n }\n\n final String jwt = jwtUtil.generateToken(authRequest.getUsername());\n return ResponseEntity.ok(new AuthResponse(jwt));\n }\n}\n<\/code>\n <\/pre>\n<\/section>\n\n10. \ub85c\uadf8\uc544\uc6c3 \uad00\ub9ac<\/h2>\n
JWT\uc740 \ud074\ub77c\uc774\uc5b8\ud2b8 \uce21\uc5d0\uc11c \uad00\ub9ac\ub418\uae30 \ub54c\ubb38\uc5d0 \ub85c\uadf8\uc544\uc6c3 \uae30\ub2a5\uc740 \ud074\ub77c\uc774\uc5b8\ud2b8\uc5d0\uc11c \ud1a0\ud070\uc744 \uc0ad\uc81c\ud558\uc5ec \ub2e8\uc21c\ud788 \uc218\ud589\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud558\uc9c0\ub9cc, \uc11c\ubc84 \uce21\uc5d0\uc11c \ub85c\uadf8\uc544\uc6c3\uc744 \uad6c\ud604\ud558\ub294 \ubc29\ubc95\ub3c4 \uc788\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \ube14\ub799\ub9ac\uc2a4\ud2b8\ub97c \uc720\uc9c0\ud558\uc5ec \ub9cc\ub8cc\ub418\uae30 \uc804\uc5d0 \ub85c\uadf8\uc544\uc6c3\ub41c \ud1a0\ud070\uc744 \ucc28\ub2e8\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/section>\n\n11. \ubbf8\ub4e4\uc6e8\uc5b4 \uad6c\uc131<\/h2>\n
\ubbf8\ub4e4\uc6e8\uc5b4\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc694\uccad\uc744 \uc804\ucc98\ub9ac\ud558\uace0 \ud6c4\ucc98\ub9ac\ud558\ub294 \uae30\ub2a5\uc744 \ucd94\uac00\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \ubaa8\ub4e0 \uc694\uccad\uc5d0 \ub300\ud574 JWT\ub97c \uac80\uc0ac\ud558\uac70\ub098, \ud2b9\uc815 \uc5d4\ub4dc\ud3ec\uc778\ud2b8\uc5d0 \ub300\ud55c \uc811\uadfc\uc744 \uc81c\ud55c\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/section>\n\n12. \ud14c\uc2a4\ud2b8\uc640 \ub514\ubc84\uae45<\/h2>\n
\uc0c1\ub2f9\ud55c \uc218\uc900\uc758 \ud14c\uc2a4\ud2b8\ub97c \uc801\uc6a9\ud558\uc5ec \ucf54\ub4dc\uc758 \ud488\uc9c8\uc744 \ubcf4\uc7a5\ud574\uc57c \ud569\ub2c8\ub2e4. \uac01 \uc11c\ube44\uc2a4, \ucee8\ud2b8\ub864\ub7ec \ubc0f \ub9ac\ud3ec\uc9c0\ud1a0\ub9ac\uc5d0 \ub300\ud55c \ub2e8\uc704 \ud14c\uc2a4\ud2b8\ub97c \uc791\uc131\ud569\ub2c8\ub2e4. \uc2a4\ud504\ub9c1 \ubd80\ud2b8\ub294 Junit\uacfc Mockito\ub97c \ud1b5\ud574 \ud6a8\uacfc\uc801\uc778 \ud14c\uc2a4\ud2b8 \ud658\uacbd\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>\n<\/section>\n\n13. \uacb0\ub860<\/h2>\n
\uc774 \uac15\uc88c\uc5d0\uc11c\ub294 \uc2a4\ud504\ub9c1 \ubd80\ud2b8\uc640 JWT\ub97c \uc0ac\uc6a9\ud558\ub294 \ub85c\uadf8\uc778 \ubc0f \ub85c\uadf8\uc544\uc6c3 \uad6c\ud604 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc790\uc138\ud788 \uc0b4\ud3b4\ubcf4\uc558\uc2b5\ub2c8\ub2e4. JWT\ub294 \ud074\ub77c\uc774\uc5b8\ud2b8\uc640 \uc11c\ubc84 \uac04\uc758 \ud1b5\uc2e0\uc744 \uc548\uc804\ud558\uac8c \ucc98\ub9ac\ud558\ub294 \uc88b\uc740 \ubc29\ubc95\uc774\uba70, \uc774\ub97c \ud1b5\ud574 \uc6f9 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc758 \ubcf4\uc548\uc744 \ud55c\uce35 \uac15\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ubc29\uc2dd\uc73c\ub85c \ubc31\uc5d4\ub4dc \uac1c\ubc1c\uc5d0 \ub300\ud55c \uc774\ud574\ub3c4\ub97c \ub192\uc774\uace0, \uc2e4\uc81c \ud504\ub85c\uc81d\ud2b8\uc5d0\uc11c\ub294 \uc774\ub7ec\ud55c \uad6c\ud604\uc744 \ud1b5\ud574 \uc0ac\uc6a9\uc790 \uc778\uc99d \uae30\ub2a5\uc744 \ubcf4\ub2e4 \ud6a8\uc728\uc801\uc73c\ub85c \uad00\ub9ac\ud560 \uc218 \uc788\uc744 \uac83\uc785\ub2c8\ub2e4.<\/p>\n<\/section>\n<\/article>\n
<\/body><\/p>\n","protected":false},"excerpt":{"rendered":"
1. \uc11c\ub860 \ucd5c\uadfc \ub9c8\uc774\ud06c\ub85c\uc11c\ube44\uc2a4 \uc544\ud0a4\ud14d\ucc98\uc640 RESTful API\uc758 \ubc1c\uc804\uc73c\ub85c \uc778\ud574 \ubc31\uc5d4\ub4dc \uac1c\ubc1c\uc758 \uc911\uc694\uc131\uc774 \ub354\uc6b1 \ubd80\uac01\ub418\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc624\ub298 \uac15\uc88c\uc5d0\uc11c\ub294 \uc2a4\ud504\ub9c1 \ubd80\ud2b8\ub97c \uc774\uc6a9\ud55c \ubc31\uc5d4\ub4dc \uac1c\ubc1c\uc744 \ud1b5\ud574 JSON Web Token(JWT)\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc0ac\uc6a9\uc790 \uc778\uc99d\uc744 \uad6c\ud604\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \uc774 \uac15\uc88c\ub294 \ub85c\uadf8\uc778 \ubc0f \ub85c\uadf8\uc544\uc6c3 \uae30\ub2a5\uc744 \ud3ec\ud568\ud55c JWT \uae30\ubc18\uc758 \ud1a0\ud070 \uc81c\uacf5\uc790\ub97c \ucd94\uac00\ud558\ub294 \uac83\uc5d0 \uc911\uc810\uc744 \ub450\uace0 \uc788\uc2b5\ub2c8\ub2e4. 2. \uc2a4\ud504\ub9c1 \ubd80\ud2b8\ub780? \uc2a4\ud504\ub9c1 \ubd80\ud2b8\ub294 \uc2a4\ud504\ub9c1 … \ub354 \ubcf4\uae30 “\uc2a4\ud504\ub9c1 \ubd80\ud2b8 \ubc31\uc5d4\ub4dc \uac1c\ubc1c \uac15\uc88c, JWT\ub85c \ub85c\uadf8\uc778 \ub85c\uadf8\uc544\uc6c3 \uad6c\ud604, \ud1a0\ud070 \uc81c\uacf5\uc790 \ucd94\uac00\ud558\uae30”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[21],"tags":[],"class_list":["post-26406","post","type-post","status-publish","format-standard","hentry","category-21"],"yoast_head":"\n\uc2a4\ud504\ub9c1 \ubd80\ud2b8 \ubc31\uc5d4\ub4dc \uac1c\ubc1c \uac15\uc88c, JWT\ub85c \ub85c\uadf8\uc778 \ub85c\uadf8\uc544\uc6c3 \uad6c\ud604, \ud1a0\ud070 \uc81c\uacf5\uc790 \ucd94\uac00\ud558\uae30 - \ub77c\uc774\ube0c\uc2a4\ub9c8\ud2b8<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/atmokpo.com\/w\/26406\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\uc2a4\ud504\ub9c1 \ubd80\ud2b8 \ubc31\uc5d4\ub4dc \uac1c\ubc1c \uac15\uc88c, JWT\ub85c \ub85c\uadf8\uc778 \ub85c\uadf8\uc544\uc6c3 \uad6c\ud604, \ud1a0\ud070 \uc81c\uacf5\uc790 \ucd94\uac00\ud558\uae30 - \ub77c\uc774\ube0c\uc2a4\ub9c8\ud2b8\" \/>\n<meta property=\"og:description\" content=\"1. \uc11c\ub860 \ucd5c\uadfc \ub9c8\uc774\ud06c\ub85c\uc11c\ube44\uc2a4 \uc544\ud0a4\ud14d\ucc98\uc640 RESTful API\uc758 \ubc1c\uc804\uc73c\ub85c \uc778\ud574 \ubc31\uc5d4\ub4dc \uac1c\ubc1c\uc758 \uc911\uc694\uc131\uc774 \ub354\uc6b1 \ubd80\uac01\ub418\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc624\ub298 \uac15\uc88c\uc5d0\uc11c\ub294 \uc2a4\ud504\ub9c1 \ubd80\ud2b8\ub97c \uc774\uc6a9\ud55c \ubc31\uc5d4\ub4dc \uac1c\ubc1c\uc744 \ud1b5\ud574 JSON Web Token(JWT)\uc744 \uc0ac\uc6a9\ud558\uc5ec 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