\n server.port=8080\n spring.datasource.url=jdbc:mysql:\/\/localhost:3306\/blogdb\n spring.datasource.username=root\n spring.datasource.password=yourpassword\n spring.jpa.hibernate.ddl-auto=update\n <\/pre>\n2. Creating Blog Post Entity<\/h3>\n
\n Create a simple Entity class to represent blog posts.\n <\/p>\n
\n import javax.persistence.*;\n import java.time.LocalDateTime;\n\n @Entity\n public class BlogPost {\n @Id\n @GeneratedValue(strategy = GenerationType.IDENTITY)\n private Long id;\n\n private String title;\n private String content;\n\n @Column(updatable = false)\n private LocalDateTime createdAt;\n\n @PrePersist\n protected void onCreate() {\n createdAt = LocalDateTime.now();\n }\n\n \/\/ getters and setters\n }\n <\/pre>\n3. Creating Repository Interface<\/h3>\n
\n Create a Repository interface for performing CRUD operations on blog posts.\n <\/p>\n
\n import org.springframework.data.jpa.repository.JpaRepository;\n\n public interface BlogPostRepository extends JpaRepository {\n }\n <\/blogpost,><\/pre>\n4. Implementing Service Class<\/h3>\n
\n Write a service class to implement business logic.\n <\/p>\n
\n import org.springframework.beans.factory.annotation.Autowired;\n import org.springframework.stereotype.Service;\n\n import java.util.List;\n\n @Service\n public class BlogPostService {\n @Autowired\n private BlogPostRepository repository;\n\n public List findAll() {\n return repository.findAll();\n }\n\n public BlogPost findById(Long id) {\n return repository.findById(id).orElse(null);\n }\n\n public void save(BlogPost blogPost) {\n repository.save(blogPost);\n }\n\n public void deleteById(Long id) {\n repository.deleteById(id);\n }\n }\n <\/blogpost><\/pre>\n5. Implementing Controller<\/h3>\n
\n Implement a Controller class to handle client requests.
\n The following is an example that outputs the list of blog posts.\n <\/p>\n
\n import org.springframework.beans.factory.annotation.Autowired;\n import org.springframework.stereotype.Controller;\n import org.springframework.ui.Model;\n import org.springframework.web.bind.annotation.GetMapping;\n\n @Controller\n public class BlogPostController {\n @Autowired\n private BlogPostService blogPostService;\n\n @GetMapping(\"\/posts\")\n public String getAllPosts(Model model) {\n model.addAttribute(\"posts\", blogPostService.findAll());\n return \"posts\"; \/\/ Thymeleaf template file\n }\n }\n <\/pre>\nImplementing Blog Post View<\/h2>\n
\n In this section, we will implement the blog post view.
\n We will write a Thymeleaf template to display the list of posts based on the Controller and Service prepared in the previous section.\n <\/p>\n
1. Thymeleaf Setup<\/h3>\n
\nAdd Thymeleaf settings to the application.properties<\/code> file.\n <\/p>\n\n spring.thymeleaf.prefix=classpath:\/templates\/\n spring.thymeleaf.suffix=.html\n <\/pre>\n2. Creating Blog Post List Template<\/h3>\n
\nCreate the src\/main\/resources\/templates\/posts.html<\/code> file and enter the following code.\n <\/p>\n\n \n\n \n \n Blog Post List<\/title>\n <\/head>\n <body>\n <h1>Blog Post List<\/h1>\n <div th:each=\"post : ${posts}\">\n <h2 th:text=\"${post.title}\"><\/h2>\n <p th:text=\"${post.createdAt}\"><\/p>\n <p th:text=\"${post.content}\" th:utext=\"${post.content}\"><\/p>\n <hr\/>\n <\/div>\n <\/body>\n <\/html>\n <\/pre>\n<h2>Conclusion<\/h2>\n<p>\n Through this course, we explored the methods for backend development of a basic blog application using Spring Boot.<br \/>\n Additionally, I recommend implementing more complex features, including authentication, authorization management, and writing test cases.\n <\/p>\n<p>\n I will continue the series later to include more content. Thank you!\n <\/p>\n<p><\/body><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Introduction Spring Boot is a framework that helps facilitate the rapid development of Java-based applications. 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