Spring Boot 2、MyBatis 集成 Elasticsearch 8 项目示例

以下是一个 Spring Boot 2 和 MyBatis 与 Elasticsearch 8 集成的示例项目：\n\n1. 首先，在 pom.xml 文件中添加所需的依赖项：\n\nxml\n<dependencies>\n <!-- Spring Boot 2 -->\n <dependency>\n <groupId>org.springframework.boot</groupId>\n <artifactId>spring-boot-starter-web</artifactId>\n </dependency>\n\n <!-- MyBatis -->\n <dependency>\n <groupId>org.mybatis.spring.boot</groupId>\n <artifactId>mybatis-spring-boot-starter</artifactId>\n <version>2.1.4</version>\n </dependency>\n <dependency>\n <groupId>mysql</groupId>\n <artifactId>mysql-connector-java</artifactId>\n </dependency>\n\n <!-- Elasticsearch -->\n <dependency>\n <groupId>org.springframework.boot</groupId>\n <artifactId>spring-boot-starter-data-elasticsearch</artifactId>\n </dependency>\n</dependencies>\n\n\n2. 创建一个 Spring Boot 应用程序的入口类：\n\njava\n@SpringBootApplication\npublic class Application {\n public static void main(String[] args) {\n SpringApplication.run(Application.class, args);\n }\n}\n\n\n3. 配置 application.properties 文件：\n\nproperties\n# Spring Boot 配置\nspring.datasource.url=jdbc:mysql://localhost:3306/mydatabase\nspring.datasource.username=root\nspring.datasource.password=123456\nspring.datasource.driver-class-name=com.mysql.jdbc.Driver\n\n# MyBatis 配置\nmybatis.mapper-locations=classpath:mapper/*.xml\n\n# Elasticsearch 配置\nspring.data.elasticsearch.cluster-nodes=localhost:9300\nspring.data.elasticsearch.cluster-name=mycluster\nspring.data.elasticsearch.repositories.enabled=true\n\n\n4. 创建一个 MyBatis 的映射器接口和对应的 XML 文件：\n\njava\n@Mapper\npublic interface UserRepository {\n @Select("SELECT * FROM user")\n List<User> findAll();\n}\n\n@Mapper\npublic interface UserMapper {\n List<User> findAll();\n}\n\n\nxml\n<!-- mapper/UserRepository.xml -->\n<mapper namespace="com.example.repository.UserRepository">\n <select id="findAll" resultType="com.example.model.User">\n SELECT * FROM user\n </select>\n</mapper>\n\n<!-- mapper/UserMapper.xml -->\n<mapper namespace="com.example.mapper.UserMapper">\n <select id="findAll" resultType="com.example.model.User">\n SELECT * FROM user\n </select>\n</mapper>\n\n\n5. 创建一个 Elasticsearch 的实体类和对应的 Repository 接口：\n\njava\n@Document(indexName = "user", type = "_doc")\npublic class User {\n @Id\n private String id;\n private String name;\n private int age;\n // getters and setters\n}\n\n@Repository\npublic interface UserRepository extends ElasticsearchRepository<User, String> {\n List<User> findByName(String name);\n}\n\n\n6. 在一个 Controller 类中使用 MyBatis 和 Elasticsearch：\n\njava\n@RestController\npublic class UserController {\n @Autowired\n private UserRepository userRepository;\n \n @Autowired\n private UserMapper userMapper;\n \n @GetMapping("/users")\n public List<User> getUsers() {\n return userRepository.findAll();\n }\n \n @GetMapping("/mybatis/users")\n public List<User> getUsersUsingMyBatis() {\n return userMapper.findAll();\n }\n}\n\n\n现在，你可以启动 Spring Boot 应用程序并访问/users和/mybatis/users端点来获取用户数据。\n