Springboot2.0整合elasticsearch实现CRUD操作

springboot和elasticsearchd的整合网上有很多例子，要不就是elasticsearch太老，要不就是和springboot版本不匹配报错：

org.elasticsearch.transport.NodeDisconnectedException: [][127.0.0.1:9300][cluster:monitor/nodes/liveness] disconnected

所以自己已微服务的形式整理了一下基于springboot2.0和elasticsearch5.6.8的整合实现基本的CRUD，核心包和类在下面列出：

依赖包

  org.springframework.boot
  spring-boot-starter-parent
  
  2.0.1.RELEASE
   

    org.springframework.boot
    spring-boot-starter-data-elasticsearch


    org.springframework.boot
    spring-boot-starter-web

配置文件：

server:
  port: 8085
spring:
  application:
    name: es-search
  data:
    elasticsearch:
      cluster-nodes: 127.0.0.1:9300
      cluster-name: elasticsearch
      repositories:
        enabled: true

public interface SearchServer {

    @RequestMapping(value = "/goodslist")
    Response getList(@RequestParam("fieldName") String fieldName,@RequestParam("query") String query);

    @RequestMapping(value = "/goodssave")
    Response save(@RequestBody GoodsDTO goodsDTO);

    @RequestMapping(value = "/goodspage")
    Response page(@RequestParam(value = "pageNum",required = false) Integer pageNum,@RequestParam(value = "pageSize",required = false) Integer pageSize,@RequestParam("fieldName") String fieldName,@RequestParam("query") String query);

    @RequestMapping(value = "/goodsdel")
    Response delete(@RequestBody GoodsDTO goodsDTO);

}

public interface BaseService {

    List getList(int type,String fieldName,String query);

    T save(T t);

    Page page(Integer pageNum, Integer pageSize,int type,String fieldName, String query);

    void delete(T t);
}

public abstract class BaseSearchService implements BaseService{

    protected abstract BaseRepository getBaseRepository();

    /**
     *
     * @param type 类型 1：精确查询，2：模糊查询
     * @param fieldName 查询的字段名称
     * @param query 查询条件
     * @return
     */
    public List getList(int type,String fieldName,String query) {

        if(type != SearchType.ac_type && type != SearchType.ob_type){
            throw new IllegalArgumentException("非法入参");
        }
        //模糊匹配
        if(type == SearchType.ob_type){
            query=matchString(query);
        }
        WildcardQueryBuilder queryBuilder = QueryBuilders.wildcardQuery(fieldName, query);
        Iterable search = getBaseRepository().search(queryBuilder);
        List list=new ArrayList<>();
        Iterator iterator = search.iterator();
        while (iterator.hasNext()){
            list.add(iterator.next());
        }
        return list;
    }

    /**
     * 添加索引(包含更新)
     * @param t
     * @return
     */
    public T save(T t){
        return (T) getBaseRepository().save(t);
    }

    /**
     * 分页查询
     * @param pageNum 起始页
     * @param pageSize
     * @param type 类型 1：精确查询，2：模糊查询
     * @param fieldName 查询的字段名称
     * @param query 查询条件
     * @return
     */
    public Page page(Integer pageNum, Integer pageSize,int type,String fieldName, String query) {

        if(type != SearchType.ac_type && type != SearchType.ob_type){
            throw new IllegalArgumentException("非法入参");
        }
        if(pageNum == null) pageNum = 0;
        if(pageSize == null) pageSize=20;
        //模糊匹配
        if(type == SearchType.ob_type){
            query=matchString(query);
        }
        WildcardQueryBuilder queryBuilder = QueryBuilders.wildcardQuery(fieldName, query);
        return getBaseRepository().search(queryBuilder, PageRequest.of(pageNum,pageSize));
    }

    /**
     * 删除
     * @param t
     */
    public void delete(T t){
        getBaseRepository().delete(t);
    }

    protected String matchString(String str){
        return "*".concat(str).concat("*");
    }
}

@RestController
@RequestMapping("search/goods")
public class GoodsController implements SearchServer{

    @Autowired
    private GoodsService goodsService;

    @Override
    public Response getList(String fieldName,String query){
        List list = goodsService.getList(SearchType.ob_type, fieldName, query);
        return Response.buildSuccessResponse().setData(list);
    }

    @Override
    public Response save(GoodsDTO goodsDTO) {
        GoodsInfo goodsInfo=new GoodsInfo();
        BeanUtils.copyProperties(goodsDTO,goodsInfo);
        goodsService.save(goodsInfo);
        return Response.buildSuccessResponse();
    }

    @Override
    public Response page(Integer pageNum,Integer pageSize,String fieldName, String query){
        Page page = goodsService.page(pageNum, pageSize, SearchType.ob_type, fieldName, query);
        return Response.buildSuccessResponse().setData(new PageResult<>(page.getTotalElements(),page.getContent()));
    }

    @Override
    public Response delete(GoodsDTO goodsDTO) {
        GoodsInfo goodsInfo=new GoodsInfo();
        BeanUtils.copyProperties(goodsDTO,goodsInfo);
        goodsService.delete(goodsInfo);
        return Response.buildSuccessResponse();
    }

}

@Service
public class GoodsServiceImpl extends BaseSearchService implements GoodsService {

    @Autowired
    private GoodsRepository goodsRepository;

    @Override
    public BaseRepository getBaseRepository() {
        return goodsRepository;
    }

}

@Component
public interface GoodsRepository extends BaseRepository {
}