考虑在您的配置中定义一个名为“elasticsearchTemplate”的 bean

Question

我刚刚启动 springboot 并尝试使用 spring-boot 实现弹性搜索，但在运行 spring-boot 应用程序时出现此类错误

考虑在您的配置中定义一个名为“elasticsearchTemplate”的 bean。

POM文件

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.tomcat.embed</groupId>
            <artifactId>tomcat-embed-jasper</artifactId>
            <scope>provided</scope>
        </dependency>
        <dependency>
           <groupId>org.springframework.boot</groupId>
           <artifactId>spring-boot-devtools</artifactId>
        </dependency>
        <dependency>
            <groupId>org.webjars</groupId>
            <artifactId>bootstrap</artifactId>
            <version>4.0.0</version>
        </dependency>
         <dependency>
            <groupId>org.elasticsearch.client</groupId>
            <artifactId>transport</artifactId>
            <version>5.6.10</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-elasticsearch</artifactId>
        </dependency>
        
        
    </dependencies>

存储库

@Repository
public interface StudentRepository extends ElasticsearchRepository<Student, Integer>{}

控制器

@RestController
public class Controller {
    
    @Autowired
    StudentRepository studentRepo;
    
    @GetMapping(value="/student/all")
    List<Student> getAllStudent() {
        
        Iterator<Student> studentList = studentRepo.findAll().iterator();
        List<Student> students = new ArrayList<>();
        if(studentList.hasNext()) {
            students.add(studentList.next());
        }
        return students;
    }
    
    @PostMapping(value="/student/add")
    String addStudent(@RequestBody Student student) {
        
        studentRepo.save(student);
        return "Record Added Successfully";
    } 
    
    @DeleteMapping(value="/student/delete/{id}")
    String deleteStudent(@PathVariable int id) {
        
        studentRepo.deleteById(id);
        return "Record Deleted Successfully";
    }
    
    //@GetMapping(value="/student/findById/{id}")
    
}

谁能帮我解决这个错误

考虑在您的配置中定义一个名为“elasticsearchTemplate”的 bean。

Answer 1

您需要在 application.properties 文件中定义一些弹性搜索属性，例如cluster-nodes，ElasticsearchTemplate和ElasticsearchRepositorycluster-names使用这些属性连接到 Elasticsearch 引擎。

您可以参考下面提到的链接：

https://dzone.com/articles/elasticsearch-with-spring-boot-application