使用阿里云tablestore查询数据

最近公司使用了阿里的nosql产品，主要记录车辆gps上传坐标位置，使用过程中遇到几个疑难，最终解决。

客户端连接的创建：

@Configuration
@ConfigurationProperties
@PropertySource(value = {
        "classpath:application.properties" }, ignoreResourceNotFound = false, encoding = "UTF-8", name = "application.properties")
public class GlobalConfig {
    @Value("${accessId}")
    private String accessId;
    @Value("${accessKey}")
    private String accessKey;
    @Value("${endPoint}")
    private String endPoint;
    @Value("${instanceName}")
    private String instanceName;

    @Bean
    public SyncClient syncClient() {
        return new SyncClient(endPoint, accessId, accessKey, instanceName);
    }
}

需要自己创建客户端连接工具，用的时候直接依赖就可以了。

简单的例子

package com.huoda.tms.vehicleLocation.service;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Map;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;

import com.alicloud.openservices.tablestore.SyncClient;
import com.alicloud.openservices.tablestore.model.ColumnValue;
import com.alicloud.openservices.tablestore.model.Row;
import com.alicloud.openservices.tablestore.model.search.SearchQuery;
import com.alicloud.openservices.tablestore.model.search.SearchRequest;
import com.alicloud.openservices.tablestore.model.search.SearchResponse;
import com.alicloud.openservices.tablestore.model.search.query.BoolQuery;
import com.alicloud.openservices.tablestore.model.search.query.MatchQuery;
import com.alicloud.openservices.tablestore.model.search.query.Query;
import com.alicloud.openservices.tablestore.model.search.query.RangeQuery;
import com.alicloud.openservices.tablestore.model.search.query.TermQuery;
import com.alicloud.openservices.tablestore.model.search.sort.FieldSort;
import com.alicloud.openservices.tablestore.model.search.sort.Sort;
import com.alicloud.openservices.tablestore.model.search.sort.SortOrder;

@Service
public class VehicleLocationService {
    @Value("${tableName}")
    private String tableName;
    @Autowired
    private SyncClient syncClient;
    
    
    public long total(String indexName) {
        // TODO Auto-generated method stub
        return 0;
    }
    /**
     * 查询单条记录
     * 
     * **/
    public Row query(String indexName, Map<String, String> map) {
        Row result=null;
        if (map.isEmpty()) {
            return null;
        }
        SearchQuery searchQuery = new SearchQuery();
        // 设置查询类型为TermQuery
        TermQuery termQuery = new TermQuery();
        for (Map.Entry<String, String> entry : map.entrySet()) {
            // 设置要匹配的字段
            termQuery.setFieldName(entry.getKey());
            // 设置要匹配的值
            termQuery.setTerm(ColumnValue.fromString(entry.getValue()));
        }
        searchQuery.setQuery(termQuery);
        searchQuery.setSort(new Sort(Arrays.asList(new FieldSort("date_time", SortOrder.DESC))));
        SearchRequest searchRequest = new SearchRequest(tableName, indexName, searchQuery);
        SearchRequest.ColumnsToGet columnsToGet = new SearchRequest.ColumnsToGet();
        // 设置返回所有列
        columnsToGet.setReturnAll(true);
        
        searchRequest.setColumnsToGet(columnsToGet);
    
        SearchResponse searchResponse = syncClient.search(searchRequest);
        if(searchResponse!=null) {
            result=searchResponse.getRows().get(0);
        }
        return result;
    }

    public SearchResponse matchAndRangeQuery(String indexName,String gpsSerial,RangeQuery rangeQuery) {
        SearchQuery searchQuery = new SearchQuery();
         BoolQuery boolQuery = new BoolQuery();
         MatchQuery matchQuery = new MatchQuery(); // 设置查询类型为MatchQuery
         matchQuery.setFieldName("gps_serial"); // 设置要匹配的字段
         matchQuery.setText(gpsSerial); // 设置要匹配的值
    
          List<Query> querys=new ArrayList<Query>();
          querys.add(matchQuery);
          if(rangeQuery!=null) {
              querys.add(rangeQuery);
          }
         boolQuery.setMustQueries(querys);
         searchQuery.setQuery(boolQuery);
         searchQuery.setGetTotalCount(true);
        SearchRequest searchRequest = new SearchRequest(tableName, indexName, searchQuery);
        // 设置返回所有列
        SearchRequest.ColumnsToGet columnsToGet = new SearchRequest.ColumnsToGet();
        columnsToGet.setReturnAll(true);
        searchRequest.setColumnsToGet(columnsToGet);
        SearchResponse searchResponse = syncClient.search(searchRequest);

        return searchResponse;
    }

}
查询多条记录时候，需要记录位置

标签：tablestore,查询,阿里,openservices,new,import,com,alicloud
来源： https://blog.csdn.net/dushanlitian/article/details/93738732