一、配置环境

spring boot 1.5.2.RELEASE

Elasticsearch:2.4.4 需要进行软件安装并在项目运行的过程中启动

elasticsearch依赖包:spring-boot-starter-data-elasticsearch:2.1.3.RELEASE

jNA依赖包:net.java.dev.jna:jna:4.3.0


二、配置elasticsearch端口

修改application.properties

#Elasticsearch服务地址
spring.data.elasticsearch.cluster-nodes=localhost:9300
#设置链接超时时间
spring.data.elasticsearch.properties.transport.tcp.connect_timeout=120s


三、正文

//@Document 标识是一个文档  indexName:索引的名称
@Document(indexName = "blog",type = "blog")  
public class EsBlog implements Serializable{

	private static final long serialVersionUID = 1L;

	@Id  //主键
	private String id;
	
	private String title;
	
	private String summary;
	
	private String content;
	
	protected EsBlog() { //JPA 规范要求,防止直接使用
		
	}
	

	public EsBlog(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 "EsBlog [id=" + id + ", title=" + title + ", summary=" + summary + ", content=" + content + "]";
	}
	
}
//String是ID的类型
public interface EsBlogRepository extends ElasticsearchRepository {
	/**
	 * 根据方法名可以替代sql查询,title是实体类的属性
	* Pageable 是返回的内容
	 * 下午4:41:42
	*/
	Page findDistinctEsBlogByTitleContainingOrSummaryContainingOrContentContaining(String title, String summary,String content, Pageable pageable);
}

测试类

@RunWith(SpringRunner.class)
@SpringBootTest
public class BlogRepositoryTest {
	
	@Autowired
    private EsBlogRepository esBlogRepository;
	
	@Before
	public void initRepositoryData() {
		// 清空所有
		esBlogRepository.deleteAll();
		esBlogRepository.save(new EsBlog("《关雎》","关关雎鸠",
				"关关雎鸠,在河之洲。窈窕淑女,君子好逑。参差荇菜,左右流之。窈窕淑女,寤寐求之。求之不得,寤寐思服。"));
		esBlogRepository.save(new EsBlog("《蒹葭》","蒹葭苍苍",
				"蒹葭苍苍,白露为霜。所谓伊人,在水一方。溯洄从之,道阻且长;溯游从之,宛在水中央。蒹葭凄凄,白露未晞"));  
		esBlogRepository.save(new EsBlog("《采薇》","采薇采薇",
				"采薇采薇,薇亦作止。曰归曰归,岁亦莫止。靡家靡室,猃狁之故。不遑启居,猃狁之故。采薇采薇,薇亦柔止。")); 
	}
	
	@Test
	public void testFindDistinctEsBlogByTitleContainingOrSummaryContainingOrContentContaining() {
		Pageable pageable = new PageRequest(0, 20);
		String title = "关";
		String summary = "关关";
		String content = "伊人";
		Page page = esBlogRepository.findDistinctEsBlogByTitleContainingOrSummaryContainingOrContentContaining(title,summary, content, pageable);
		//assertThat(page.getTotalElements()).isEqualTo(2);
		for (EsBlog esBlog : page) {
			System.out.println(esBlog.toString());
		}
	}
}


Controller类:

@RestController
@RequestMapping("/blogs")
public class BlogController {
	
	@Autowired
    private EsBlogRepository esBlogRepository;
	
	@GetMapping
	public List list(@RequestParam(value="title",required=false,defaultValue="") String title,
			@RequestParam(value="summary",required=false,defaultValue="") String summary,
			@RequestParam(value="content",required=false,defaultValue="") String content,
			@RequestParam(value="pages",required=false,defaultValue="0") int pages,
			@RequestParam(value="limit",required=false,defaultValue="10") int limit) {
			
		// 数据在 Test 里面先初始化了,这里只管取数据
		Pageable pageable = new PageRequest(pages, limit);
		Page page = esBlogRepository.findDistinctEsBlogByTitleContainingOrSummaryContainingOrContentContaining(title,summary, content, pageable);
		
		return page.getContent();
	}
 
}

运行之前需要启动着Elasticsearch服务,并在application.properties中配置:spring.data.elasticsearch.cluster-nodes=127.0.0.1:9300

运行url:http://localhost:8080/blogs?title=关&summary=关关&content=伊人

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