{"id":1017,"date":"2026-03-22T01:02:58","date_gmt":"2026-03-22T04:02:58","guid":{"rendered":"https:\/\/www.isacaguiar.com.br\/blog\/?p=1017"},"modified":"2026-03-22T22:35:02","modified_gmt":"2026-03-23T01:35:02","slug":"clean-architecture-com-spring-boot-guia-completo-com-exemplo-pratico","status":"publish","type":"post","link":"https:\/\/www.isacaguiar.com.br\/blog\/clean-architecture-com-spring-boot-guia-completo-com-exemplo-pratico\/","title":{"rendered":"Clean Architecture com Spring Boot: Guia Completo com Exemplo Pr\u00e1tico"},"content":{"rendered":"<h2 data-section-id=\"1xema8w\" data-start=\"326\" data-end=\"342\">Introdu\u00e7\u00e3o<\/h2>\n<p data-start=\"344\" data-end=\"536\">A <strong data-start=\"346\" data-end=\"384\">Clean Architecture com Spring Boot<\/strong> \u00e9 uma abordagem de design que organiza o sistema em camadas bem definidas, promovendo <strong data-start=\"471\" data-end=\"535\">baixo acoplamento, alta coes\u00e3o e independ\u00eancia de frameworks<\/strong>.<\/p>\n<p data-start=\"538\" data-end=\"574\">Se voc\u00ea j\u00e1 enfrentou problemas como:<\/p>\n<ul data-start=\"575\" data-end=\"677\">\n<li data-section-id=\"h8t2x9\" data-start=\"575\" data-end=\"606\">c\u00f3digo dif\u00edcil de testar \ud83d\ude29<\/li>\n<li data-section-id=\"1gen2py\" data-start=\"607\" data-end=\"642\">regras de neg\u00f3cio espalhadas \ud83e\udd2f<\/li>\n<li data-section-id=\"1c31cyg\" data-start=\"643\" data-end=\"677\">forte depend\u00eancia do Spring \ud83d\ude2c<\/li>\n<\/ul>\n<p data-start=\"679\" data-end=\"750\">\u2026 ent\u00e3o este artigo vai te ajudar a resolver isso de forma estruturada.<\/p>\n<h2 data-section-id=\"130av5q\" data-start=\"757\" data-end=\"790\">O que \u00e9 Clean Architecture?<\/h2>\n<p data-start=\"792\" data-end=\"910\">A Clean Architecture foi proposta por <span class=\"hover:entity-accent entity-underline inline cursor-pointer align-baseline\"><span class=\"whitespace-normal\">Robert C. Martin<\/span><\/span> (Uncle Bob) e tem como objetivo principal:<\/p>\n<blockquote data-start=\"912\" data-end=\"961\">\n<p data-start=\"914\" data-end=\"961\"><strong data-start=\"914\" data-end=\"961\">Separar regras de neg\u00f3cio da infraestrutura<\/strong><\/p>\n<\/blockquote>\n<p data-start=\"963\" data-end=\"971\">Ou seja:<\/p>\n<ul data-start=\"972\" data-end=\"1081\">\n<li data-section-id=\"buz9j1\" data-start=\"972\" data-end=\"1004\">O dom\u00ednio n\u00e3o depende de banco<\/li>\n<li data-section-id=\"bcafxc\" data-start=\"1005\" data-end=\"1041\">O dom\u00ednio n\u00e3o depende de framework<\/li>\n<li data-section-id=\"tvcz51\" data-start=\"1042\" data-end=\"1081\">O dom\u00ednio \u00e9 o cora\u00e7\u00e3o da aplica\u00e7\u00e3o \u2764\ufe0f<\/li>\n<\/ul>\n<h2>Estrutura das Camadas<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.isacaguiar.com.br\/blog\/wp-content\/uploads\/2026\/03\/CleanArchitecture.jpg\" alt=\"\" width=\"588\" height=\"432\" class=\"alignleft wp-image-1018\" srcset=\"https:\/\/www.isacaguiar.com.br\/blog\/wp-content\/uploads\/2026\/03\/CleanArchitecture.jpg 772w, https:\/\/www.isacaguiar.com.br\/blog\/wp-content\/uploads\/2026\/03\/CleanArchitecture-400x294.jpg 400w, https:\/\/www.isacaguiar.com.br\/blog\/wp-content\/uploads\/2026\/03\/CleanArchitecture-768x564.jpg 768w\" sizes=\"auto, (max-width: 588px) 100vw, 588px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h3 data-section-id=\"1ndsde9\" data-start=\"1160\" data-end=\"1208\">1. Domain (Entidades + Regras de Neg\u00f3cio)<\/h3>\n<ul data-start=\"1210\" data-end=\"1252\">\n<li data-section-id=\"tuupqh\" data-start=\"1210\" data-end=\"1221\">Entidades<\/li>\n<li data-section-id=\"t6egth\" data-start=\"1222\" data-end=\"1237\">Value Objects<\/li>\n<li data-section-id=\"o75m8t\" data-start=\"1238\" data-end=\"1252\">Regras puras<\/li>\n<\/ul>\n<div class=\"hcb_wrap\">\n<pre class=\"wp-block-preformatted prism line-numbers lang-bash\" data-lang=\"JAVA\"><code class=\"language-java\">public class Account {\r\n    private Long id;\r\n    private BigDecimal balance;\r\n\r\n    public void deposit(BigDecimal amount) {\r\n        if (amount.compareTo(BigDecimal.ZERO) &lt;= 0) {\r\n            throw new IllegalArgumentException(\"Valor inv\u00e1lido\");\r\n        }\r\n        this.balance = this.balance.add(amount);\r\n    }\r\n}<\/code><\/pre>\n<\/div>\n<p>\ud83d\udc49 N\u00e3o depende de Spring, JPA ou qualquer framework<\/p>\n<h3 data-section-id=\"l0d056\" data-start=\"1638\" data-end=\"1671\">2. Application (Use Cases)<\/h3>\n<ul data-start=\"1673\" data-end=\"1713\">\n<li data-section-id=\"1y77nil\" data-start=\"1673\" data-end=\"1687\">Casos de uso<\/li>\n<li data-section-id=\"1egdef7\" data-start=\"1688\" data-end=\"1713\">Orquestra\u00e7\u00e3o do dom\u00ednio<\/li>\n<\/ul>\n<div class=\"hcb_wrap\">\n<pre class=\"wp-block-preformatted prism line-numbers lang-bash\" data-lang=\"JAVA\"><code class=\"language-java\">public class DepositUseCase {\r\n\r\n    private final AccountRepository repository;\r\n\r\n    public DepositUseCase(AccountRepository repository) {\r\n        this.repository = repository;\r\n    }\r\n\r\n    public void execute(Long accountId, BigDecimal amount) {\r\n        Account account = repository.findById(accountId);\r\n        account.deposit(amount);\r\n        repository.save(account);\r\n    }\r\n}<\/code><\/pre>\n<\/div>\n<h3 data-section-id=\"w6t35y\" data-start=\"2110\" data-end=\"2138\">3. Interface Adapters<\/h3>\n<ul data-start=\"2140\" data-end=\"2198\">\n<li data-section-id=\"16a1bkm\" data-start=\"2140\" data-end=\"2160\">Controllers (REST)<\/li>\n<li data-section-id=\"wgqymi\" data-start=\"2161\" data-end=\"2185\">Mappers (DTO \u2194 Domain)<\/li>\n<li data-section-id=\"19v76dj\" data-start=\"2186\" data-end=\"2198\">Presenters<\/li>\n<\/ul>\n<div class=\"hcb_wrap\">\n<pre class=\"wp-block-preformatted prism line-numbers lang-bash\" data-lang=\"JAVA\"><code class=\"language-java\">@RestController\r\n@RequestMapping(\"\/accounts\")\r\npublic class AccountController {\r\n\r\n    private final DepositUseCase depositUseCase;\r\n\r\n    public AccountController(DepositUseCase depositUseCase) {\r\n        this.depositUseCase = depositUseCase;\r\n    }\r\n\r\n    @PostMapping(\"\/{id}\/deposit\")\r\n    public ResponseEntity<void> deposit(@PathVariable Long id,\r\n                                        @RequestBody DepositRequest request) {\r\n        depositUseCase.execute(id, request.getAmount());\r\n        return ResponseEntity.ok().build();\r\n    }\r\n}<\/void><\/code><\/pre>\n<\/div>\n<h3 data-section-id=\"f0dpwy\" data-start=\"2747\" data-end=\"2771\">4. Infrastructure<\/h3>\n<ul data-start=\"2773\" data-end=\"2843\">\n<li data-section-id=\"f2air9\" data-start=\"2773\" data-end=\"2789\">Banco de dados<\/li>\n<li data-section-id=\"be5t9a\" data-start=\"2790\" data-end=\"2821\">Implementa\u00e7\u00e3o de reposit\u00f3rios<\/li>\n<li data-section-id=\"1jho3em\" data-start=\"2822\" data-end=\"2843\">Configura\u00e7\u00e3o Spring<\/li>\n<\/ul>\n<div class=\"hcb_wrap\">\n<pre class=\"wp-block-preformatted prism line-numbers lang-bash\" data-lang=\"JAVA\"><code class=\"language-java\">@Repository\r\npublic class AccountRepositoryImpl implements AccountRepository {\r\n\r\n    private final JpaAccountRepository jpaRepository;\r\n\r\n    public AccountRepositoryImpl(JpaAccountRepository jpaRepository) {\r\n        this.jpaRepository = jpaRepository;\r\n    }\r\n\r\n    @Override\r\n    public Account findById(Long id) {\r\n        return jpaRepository.findById(id)\r\n                .map(AccountMapper::toDomain)\r\n                .orElseThrow();\r\n    }\r\n}<\/code><\/pre>\n<\/div>\n<h2 data-section-id=\"1u1zain\" data-start=\"3300\" data-end=\"3346\">Regra de Depend\u00eancia (A MAIS IMPORTANTE)<\/h2>\n<blockquote data-start=\"3348\" data-end=\"3392\">\n<p data-start=\"3350\" data-end=\"3392\">As depend\u00eancias sempre apontam para dentro<\/p>\n<\/blockquote>\n<div class=\"hcb_wrap\">\n<pre class=\"wp-block-preformatted prism line-numbers lang-text\" data-lang=\"TEXT\"><code class=\"language-text\">Controller \u2192 UseCase \u2192 Domain\r\nRepository \u2192 Domain<\/code><\/pre>\n<\/div>\n<p data-start=\"3453\" data-end=\"3474\">\u274c Domain N\u00c3O conhece:<\/p>\n<ul data-start=\"3475\" data-end=\"3498\">\n<li data-section-id=\"63k52x\" data-start=\"3475\" data-end=\"3483\">Spring<\/li>\n<li data-section-id=\"16y399l\" data-start=\"3484\" data-end=\"3491\">Banco<\/li>\n<li data-section-id=\"1j3sldc\" data-start=\"3492\" data-end=\"3498\">HTTP<\/li>\n<\/ul>\n<h2>\ud83d\udce6 Estrutura de Pacotes Sugerida<\/h2>\n<div class=\"hcb_wrap\">\n<pre class=\"wp-block-preformatted prism line-numbers lang-text\" data-lang=\"TEXT\"><code class=\"language-text\">com.seuprojeto\r\n \u251c\u2500\u2500 domain\r\n \u2502    \u251c\u2500\u2500 model\r\n \u2502    \u2514\u2500\u2500 repository\r\n \u2502\r\n \u251c\u2500\u2500 application\r\n \u2502    \u2514\u2500\u2500 usecase\r\n \u2502\r\n \u251c\u2500\u2500 infrastructure\r\n \u2502    \u251c\u2500\u2500 persistence\r\n \u2502    \u2514\u2500\u2500 config\r\n \u2502\r\n \u2514\u2500\u2500 interfaces\r\n      \u251c\u2500\u2500 controller\r\n      \u2514\u2500\u2500 dto<\/code><\/pre>\n<\/div>\n<h2 data-section-id=\"djyvd1\" data-start=\"3774\" data-end=\"3796\">Benef\u00edcios Reais<\/h2>\n<h3 data-section-id=\"nlxexq\" data-start=\"3798\" data-end=\"3817\">\u2705 Testabilidade<\/h3>\n<p data-start=\"3818\" data-end=\"3848\">Voc\u00ea testa UseCase sem Spring:<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"wp-block-preformatted prism line-numbers lang-bash\" data-lang=\"JAVA\"><code class=\"language-java\">@Test\r\nvoid shouldDeposit() {\r\n    AccountRepository fakeRepo = new InMemoryAccountRepository();\r\n    DepositUseCase useCase = new DepositUseCase(fakeRepo);\r\n\r\n    useCase.execute(1L, BigDecimal.TEN);\r\n\r\n    assertEquals(BigDecimal.TEN, fakeRepo.findById(1L).getBalance());\r\n}<\/code><\/pre>\n<\/div>\n<h3 data-section-id=\"pyfzs8\" data-start=\"4137\" data-end=\"4169\">Independ\u00eancia de Framework<\/h3>\n<p data-start=\"4171\" data-end=\"4178\">Trocar:<\/p>\n<ul data-start=\"4179\" data-end=\"4233\">\n<li data-section-id=\"17q1e4f\" data-start=\"4179\" data-end=\"4201\">Spring \u2192 Micronaut<\/li>\n<li data-section-id=\"1h2ojm6\" data-start=\"4202\" data-end=\"4216\">JPA \u2192 JDBC<\/li>\n<li data-section-id=\"xstwp8\" data-start=\"4217\" data-end=\"4233\">REST \u2192 Kafka<\/li>\n<\/ul>\n<p data-start=\"4235\" data-end=\"4259\">\ud83d\udc49 sem alterar o dom\u00ednio<\/p>\n<h3 data-section-id=\"qsb4qq\" data-start=\"4266\" data-end=\"4305\">Organiza\u00e7\u00e3o para sistemas grandes<\/h3>\n<p data-start=\"4307\" data-end=\"4321\">Perfeito para:<\/p>\n<ul data-start=\"4322\" data-end=\"4400\">\n<li data-section-id=\"v28mi6\" data-start=\"4322\" data-end=\"4349\">microservi\u00e7os complexos<\/li>\n<li data-section-id=\"zifc16\" data-start=\"4350\" data-end=\"4375\">sistemas banc\u00e1rios \ud83d\udcb0<\/li>\n<li data-section-id=\"1qzarv8\" data-start=\"4376\" data-end=\"4400\">plataformas cr\u00edticas<\/li>\n<\/ul>\n<p data-start=\"4402\" data-end=\"4434\">\ud83d\udc49 (exatamente seu cen\u00e1rio hoje)<\/p>\n<h2 data-section-id=\"1ldv6sa\" data-start=\"4441\" data-end=\"4459\">\u26a0\ufe0f Erros comuns<\/h2>\n<h3 data-section-id=\"1h2mmzz\" data-start=\"4461\" data-end=\"4492\">\u274c Colocar @Entity no Domain<\/h3>\n<div class=\"hcb_wrap\">\n<pre class=\"wp-block-preformatted prism line-numbers lang-bash\" data-lang=\"JAVA\"><code class=\"language-java\">@Entity \/\/ ERRADO\r\npublic class Account { }   assertEquals(BigDecimal.TEN, fakeRepo.findById(1L).getBalance());\r\n}<\/code><\/pre>\n<\/div>\n<p>\ud83d\udc49 Isso acopla ao JPA<\/p>\n<h3>\u274c L\u00f3gica no Controller<\/h3>\n<div class=\"hcb_wrap\">\n<pre class=\"wp-block-preformatted prism line-numbers lang-bash\" data-lang=\"JAVA\"><code class=\"language-java\">\/\/ ERRADO\r\nif (amount &gt; 0) {\r\n   account.setBalance(...)\r\n}<\/code><\/pre>\n<\/div>\n<p>\ud83d\udc49 regra deve ficar no dom\u00ednio<\/p>\n<h3 data-section-id=\"1c4opqs\" data-start=\"4713\" data-end=\"4750\">\u274c Repository direto no Controller<\/h3>\n<p data-start=\"4752\" data-end=\"4784\">\ud83d\udc49 pula o UseCase \u2192 vira bagun\u00e7a<\/p>\n<p>Clean Architecture vs Hexagonal vs DDD<\/p>\n<table style=\"border-collapse: collapse; width: 100%;\">\n<tbody>\n<tr>\n<td style=\"width: 50%;\">Conceito<\/td>\n<td style=\"width: 50%;\">Foco<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 50%;\">Clean Architecture<\/td>\n<td style=\"width: 50%;\">Separa\u00e7\u00e3o de camadas<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 50%;\">Hexagonal<\/td>\n<td style=\"width: 50%;\">Portas e adaptadores<\/td>\n<\/tr>\n<tr>\n<td style=\"width: 50%;\">DDD<\/td>\n<td style=\"width: 50%;\">Modelagem do dom\u00ednio<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 data-section-id=\"1hl2kfl\" data-start=\"5035\" data-end=\"5053\">Quando usar?<\/h2>\n<p data-start=\"5055\" data-end=\"5085\">Use Clean Architecture quando:<\/p>\n<ul data-start=\"5087\" data-end=\"5192\">\n<li data-section-id=\"1eagg5g\" data-start=\"5087\" data-end=\"5113\">Sistema vai crescer \ud83d\udcc8<\/li>\n<li data-section-id=\"30fai8\" data-start=\"5114\" data-end=\"5152\">Regras de neg\u00f3cio s\u00e3o complexas \ud83e\udde0<\/li>\n<li data-section-id=\"d2061r\" data-start=\"5153\" data-end=\"5192\">Precisa de alta manutenibilidade \ud83d\udd27<\/li>\n<\/ul>\n<p data-start=\"5194\" data-end=\"5207\">Evite quando:<\/p>\n<ul data-start=\"5208\" data-end=\"5239\">\n<li data-section-id=\"5fzprp\" data-start=\"5208\" data-end=\"5224\">CRUD simples<\/li>\n<li data-section-id=\"1wpmgte\" data-start=\"5225\" data-end=\"5239\">MVP r\u00e1pido<\/li>\n<\/ul>\n<h2 data-section-id=\"1wxtmpr\" data-start=\"5246\" data-end=\"5261\">Conclus\u00e3o<\/h2>\n<p data-start=\"5263\" data-end=\"5371\">A <strong data-start=\"5265\" data-end=\"5303\">Clean Architecture com Spring Boot<\/strong> n\u00e3o \u00e9 apenas organiza\u00e7\u00e3o \u2014 \u00e9 uma forma de garantir que seu sistema:<\/p>\n<ul data-start=\"5373\" data-end=\"5447\">\n<li data-section-id=\"qativ\" data-start=\"5373\" data-end=\"5397\">sobreviva ao tempo \u23f3<\/li>\n<li data-section-id=\"1257o90\" data-start=\"5398\" data-end=\"5425\">seja f\u00e1cil de testar \ud83e\uddea<\/li>\n<li data-section-id=\"1x8iq4f\" data-start=\"5426\" data-end=\"5447\">evolua sem dor \ud83d\ude0c<\/li>\n<\/ul>\n<p data-start=\"5449\" data-end=\"5520\">Se voc\u00ea quer evoluir como arquiteto, dominar esse conceito \u00e9 essencial.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Introdu\u00e7\u00e3o A Clean Architecture com Spring Boot \u00e9 uma abordagem de design que organiza o sistema em camadas bem definidas, promovendo baixo\u2026<\/p>\n","protected":false},"author":1,"featured_media":1021,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18,13,289],"tags":[],"class_list":["post-1017","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-desenvolvimento-de-software","category-java","category-tecnologia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>clean architecture spring boot<\/title>\n<meta name=\"description\" content=\"Aprenda Clean Architecture com Spring Boot na pr\u00e1tica com exemplos em Java, estrutura de camadas, boas 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