跟着官网走,能干99。一年几次变,次次不一样。刚部署好ES-6.8,又买阿里云Es-7.10.0根本忙不完。
做为JDK1.8最后一个版本。今天就拿新技术部署一套。致辞:大家以后就用这套好了。别轻易触发springboot3.0了
学习无止境:Dependency Versions
一springboot干货:
pom文件配置:
7.10.0
org.elasticsearch
elasticsearch
${elasticsearch.version}
org.elasticsearch.client
elasticsearch-rest-high-level-client
${elasticsearch.version}
一。直接干底层模版接口代码:
/**
* description: Es基础功能组件
**/
public interface ElasticsearchTemplate {
/**
* 通过Low Level REST Client 查询
* @param request 原生查询对象
*/
public Response request(Request request) throws Exception;
/**
* 新增索引
* @param t 索引pojo
*/
public boolean save(T t) throws Exception;
/**
* 新增索引(路由方式)
* @param t 索引pojo
* @param routing 路由信息(默认路由为索引数据_id)
*/
public boolean save(T t,String routing) throws Exception;
/**
* 新增索引集合
* @param list 索引pojo集合
*/
public BulkResponse save(List list) throws Exception;
/**
* 新增索引集合(分批方式,提升性能,防止es服务内存溢出,每批默认5000条数据)
* @param list 索引pojo集合
*/
public BulkResponse[] saveBatch(List list) throws Exception;
/**
* 更新索引集合
* @param list 索引pojo集合
* @return
* @throws Exception
*/
public BulkResponse bulkUpdate(List list) throws Exception;
}
二。模版接口实现类:
@Component
public class ElasticsearchTemplateImpl implements ElasticsearchTemplate {
private Logger logger = LoggerFactory.getLogger(this.getClass());
@Autowired
RestHighLevelClient client;
@Autowired
ElasticsearchIndex elasticsearchIndex;
@Override
public Response request(Request request) throws Exception {
Response response = client.getLowLevelClient().performRequest(request);
return response;
}
@Override
public boolean save(T t) throws Exception {
return save(t,null);
}
@Override
public boolean save(T t, String routing) throws Exception {
MetaData metaData = elasticsearchIndex.getMetaData(t.getClass());
String indexname = metaData.getIndexname();
String id = Tools.getESId(t);
IndexRequest indexRequest=new IndexRequest(indexname);;
if (StringUtils.hasText(id)) {
indexRequest.id(id);
}
JSONObject jsonObject = JSONObject.parseObject(JSON.toJSONString(t));
indexRequest.source(jsonObject);
if(StringUtils.hasText(routing)){
indexRequest.routing(routing);
}
IndexResponse indexResponse = null;
indexResponse = client.index(indexRequest, RequestOptions.DEFAULT);
if (indexResponse.getResult() == DocWriteResponse.Result.CREATED) {
logger.info("INDEX CREATE SUCCESS");
elasticsearchIndex.rollover(t.getClass(),true);
} else if (indexResponse.getResult() == DocWriteResponse.Result.UPDATED) {
logger.info("INDEX UPDATE SUCCESS");
} else {
return false;
}
return true;
}
}
三 。对外客户端提供接口:
/**
* program: 对客户端提供api
* description:
**/
public interface ESCRepository {
/**
* 通过Low Level REST Client 查询
*/
public Response request(Request request) throws Exception;
/**
* 新增索引
* @param t
*/
public boolean save(T t) throws Exception;
/**
* 新增索引集合
* @param list
*/
public BulkResponse save(List list) throws Exception;
/**
* 按照有值字段更新索引
* @param t
*/
public boolean update(T t) throws Exception;
}
四。对ES提供实现类:
/**
* program: ESCRepository对外提供统一接口
**/
public class SimpleESCRepository implements ESCRepository {
private Class domainClass;
private Class idClass;
private ApplicationContext applicationContext;
private ElasticsearchTemplate elasticsearchTemplate = null;
public SimpleESCRepository(ApplicationContext applicationContext){
this.applicationContext = applicationContext;
}
private ElasticsearchTemplate getElasticsearchTemplate(){
return applicationContext.getBean(ElasticsearchTemplate.class);
}
@Override
public Response request(Request request) throws Exception {
return getElasticsearchTemplate().request(request);
}
@Override
public boolean save(T o) throws Exception {
return getElasticsearchTemplate().save(o);
}
@Override
public BulkResponse save(List list) throws Exception {
return getElasticsearchTemplate().save(list);
}
}
@Override
public boolean update(T t) throws Exception {
return getElasticsearchTemplate().update(t);
}
@Override
public boolean updateCover(T t) throws Exception {
return getElasticsearchTemplate().updateCover(t);
}
写到现在终于把底层封装完毕。客户端如何调用
客户端实现接口:
public interface IndexRepository extends ESCRepository {
}
这就完了,你答对了,至此springboot+ES已经封装完成
直接controller接口测试:
@Resource
private IndexRepository indexRepository;
@GetMapping("/demo/add")
public String add() throws Exception {
IndexEntity indexEntity = new IndexEntity ();
indexEntity .setProposal_no("1");
indexEntity .setAppli_name("a1");
indexEntity .setRisk_code("aa1");
indexEntity .setSum_premium(1);
indexDemoRepository.save(indexEntity );
return "新增成功";
}
@GetMapping("/demo/query")
public List query() throws Exception {
List search = indexDemoRepository.search(QueryBuilders.matchAllQuery());
return search;
}
一套掌法打出。查询结果到手
[
{
"proposal_no": "1",
"risk_code": "aa1",
"risk_name": null,
"business_nature": null,
"business_nature_name": null,
"appli_code": null,
"appli_name": "a1",
"insured_code": null,
"insured_name": null,
"operate_date": null,
"operate_date_format": null,
"start_date": null,
"end_date": null,
"sum_amount": 0.0,
"sum_premium": 1.0,
"com_code": null
}
]
能欣赏到这里说明你对ES的理解钢圈了。需要源码的欢迎加我V。10元