記錄一下SpringBoot(2.0.4.RELEASE)+Elasticsearch(6.2.4)+Gradle整合的一個小例子。

1.在Gradle內加入相關jar包的依賴：

compile(‘org.springframework.boot:spring-boot-starter-web‘)
compile(‘org.springframework.boot:spring-boot-starter-thymeleaf‘)
compile(‘org.springframework.boot:spring-boot-starter-data-jpa‘)
	
//添加Spring Data Elasticsearch依賴
compile(‘org.springframework.boot:spring-boot-starter-data-elasticsearch‘)

//添加JNA依賴
compile(‘net.java.dev.jna:jna:4.3.0‘)
 

compile(‘com.google.guava:guava:26.0-jre‘)

2.創建實體對象，並加入Elasticsearch的相關註釋：

package com.wey.pojo.blog;

import java.io.Serializable;
import org.springframework.data.annotation.Id;
import org.springframework.data.elasticsearch.annotations.Document;

@Document(indexName="blogcenter",type="blog")
//indexName索引名稱 可以理解為數據庫名 必須為小寫不然會報
public class Blog implements Serializable{

    private static final long serialVersionUID = 1L;
    
    @Id
    private String id;
    private String title;
    private String summary;
    private String content;
    
    protected Blog() {
        super();
    }
    
    public Blog(String title, String summary, String content) {
        this.title = title;
        this.summary = summary;
        this.content = content;
    }

    public String getId() {
        return id;
    }
    
    public void setId(String id) {
        this.id = id;
    }
    
    public String getTitle() {
        return title;
    }
    
    public void setTitle(String title) {
        this.title = title;
    }
    
    public String getSummary() {
        return summary;
    }
    
    public void setSummary(String summary) {
        this.summary = summary;
    }
    
    public String getContent() {
        return content;
    }
    
    public void setContent(String content) {
        this.content = content;
    }

    @Override
    public String toString() {
        return "Blog [id=" + id + ", title=" + title + ", summary=" + summary + ", content=" + content + "]";
    }
}

3.創建Repository

package com.wey.repository;

import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;
import org.springframework.stereotype.Component;

import com.wey.pojo.blog.Blog;

public interface BlogRepository extends ElasticsearchRepository<Blog, String> {
}

4.創建Controller並簡單的實現添加及查詢

@RestController
@RequestMapping("/blogs")
public class BlogController {
     @Autowired
     BlogRepository blogRepository;

    @RequestMapping("/add")
    public Blog add(Blog blog) {
        return blogRepository.save(blog);
    }   
    
    @GetMapping
    public List<Blog> findAll(){
        Iterable<Blog> elements = blogRepository.findAll();
        ArrayList<Blog> list = Lists.newArrayList(elements);
        return list;
    }
    
    @GetMapping("/delete/{id}")
    public String remove(@PathVariable(name="id") String id) {
        blogRepository.deleteById(id);
        return "success";
    }
}

5.打開下載好的Elasticsearch(6.2.4)內的elasticsearch.bat文件，等待一會兒直到啟動完成。

6.啟動SpringBoot應用並簡單的測試

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SpringBoot(2.0.4.RELEASE)+Elasticsearch(6.2.4)+Gradle簡單整合