ElasticSearch（五）------基于JAVA的elasticsearch的实例
文凯康
添加依赖
<!-- Elasticsearch核心依赖包 -->
<dependency>
<groupId>org.elasticsearch.client</groupId>
<artifactId>transport</artifactId>
<version>6.2.2</version>
</dependency>
<dependency>
<groupId>org.elasticsearch</groupId>
<artifactId>elasticsearch</artifactId>
<version>6.2.2</version>
</dependency>
<dependency>
<groupId>org.elasticsearch.plugin</groupId>
<artifactId>transport-netty4-client</artifactId>
<version>6.2.2</version>
</dependency>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.8.0</version>
</dependency>
添加es核心工具类
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.Map;
import org.elasticsearch.action.admin.indices.create.CreateIndexResponse;
import org.elasticsearch.action.admin.indices.delete.DeleteIndexResponse;
import org.elasticsearch.action.admin.indices.exists.indices.IndicesExistsResponse;
import org.elasticsearch.action.admin.indices.exists.types.TypesExistsRequest;
import org.elasticsearch.action.admin.indices.exists.types.TypesExistsResponse;
import org.elasticsearch.action.admin.indices.mapping.put.PutMappingRequest;
import org.elasticsearch.action.delete.DeleteResponse;
import org.elasticsearch.action.get.GetResponse;
import org.elasticsearch.action.index.IndexResponse;
import org.elasticsearch.action.update.UpdateResponse;
import org.elasticsearch.client.IndicesAdminClient;
import org.elasticsearch.client.Requests;
import org.elasticsearch.client.transport.TransportClient;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.transport.TransportAddress;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentType;
import org.elasticsearch.transport.client.PreBuiltTransportClient;
import com.google.gson.JsonObject;
/**
* elasticsearch 6.2.2 工具类
*
*/
public class ElasticSearcUtil {
//TransportClient对象，用于连接ES集群
private static volatile TransportClient client;
public static TransportClient getClient(){
boolean sniff = true;//开启客户端去嗅探整个集群的状态，默认关闭false
String cluster_name = "elasticsearch";//默认是elasticsearch
String ip = "127.0.0.1";//本地是127.0.0.1，如果按照到服务器上，填写服务器ip
int port = 9300;//连接端口号,默认9300
//构建Settings对象
Settings settings = Settings.builder().put("cluster.name", cluster_name).put("client.transport.sniff", sniff).build();//增加嗅探机制，找到ES集群
//双检锁/双重校验锁
if(client==null){
synchronized (TransportClient.class){
try {
if(client==null) {
client=new PreBuiltTransportClient(settings).addTransportAddress(new TransportAddress(InetAddress.getByName(ip), port));
}
} catch (UnknownHostException e) {
e.printStackTrace();
}
}
}
return client;
}
/**
* 关闭客户端
*
* @param client
*/
public static void close() {
if(null != client) {
Logger.info("执行关闭连接操作...");
client.close();
}
}
/**
* 获取索引管理的IndicesAdminClient
*/
public static IndicesAdminClient getAdminClient() {
return getClient().admin().indices();
}
/**
* 判定索引是否存在
* @param indexName 索引名
* @return
*/
public static boolean isExists(String indexName){
IndicesExistsResponse response=getAdminClient().prepareExists(indexName).get();
return response.isExists()?true:false;
}
/**
* 删除索引
* @param indexName 索引名
* @return
*/
public static boolean deleteIndex(String indexName) {
DeleteIndexResponse deleteResponse = getAdminClient()
.prepareDelete(indexName.toLowerCase())
.execute()
.actionGet();
return deleteResponse.isAcknowledged()?true:false;
}
/**
* 判断指定的索引的类型是否存在
* @param client
* @param indexName 索引名
* @param type index类型
* @return 存在：true; 不存在：false;
*/
public static boolean isExistsType(String indexName,String type){
TypesExistsResponse response = getAdminClient().typesExists(new TypesExistsRequest(new String[]{indexName}, type)).actionGet();
return response.isExists()?true:false;
}
/**
* 创建索引
* @param indexName 索引名
* @return
*/
public static boolean createIndex(String indexName){
CreateIndexResponse createIndexResponse = getAdminClient().prepareCreate(indexName.toLowerCase()).get();
return createIndexResponse.isAcknowledged()?true:false;
}
/**
* 创建索引
* @param indexName 索引名
* @param shards 分片数
* @param replicas 副本数
* @return
*/
public static boolean createIndex(String indexName, int shards, int replicas) {
Settings settings = Settings.builder()
.put("index.number_of_shards", shards)
.put("index.number_of_replicas", replicas)
.build();
CreateIndexResponse createIndexResponse = getAdminClient()
.prepareCreate(indexName.toLowerCase())
.setSettings(settings)
.execute().actionGet();
return createIndexResponse.isAcknowledged()?true:false;
}
/**
* 为索引indexName设置mapping
* @param indexName 索引名
* @param type index类型
* @param builder
*/
public static void setMapping(String indexName, String type, XContentBuilder builder) {
PutMappingRequest mapping = Requests.putMappingRequest(indexName).type(type).source(builder);
getAdminClient().putMapping(mapping).actionGet();
}
/**
* 插入文档
* @param indexName 索引名
* @param type index类型
* @param doc XContentBuilder
*/
public static void insertDocument(String indexName, String type,XContentBuilder doc) {
IndexResponse response = getClient().prepareIndex(indexName, type)
.setSource(doc)
.get();
Logger.info("索引名称:" + response.getIndex() + "\n类型:" + response.getType()+"\n文档ID:" + response.getId() + "\n当前实例状态:" + response.status());
}
/**
* 插入文档
* @param indexName 索引名
* @param type index类型
* @param id 文档id
* @param pipeline 管道名称
* @param doc XContentBuilder
*/
public static void insertDocument(String indexName, String type,String id, XContentBuilder doc) {
IndexResponse response = getClient().prepareIndex(indexName, type,id)
.setSource(doc)
.get();
Logger.info("索引名称:" + response.getIndex() + "\n类型:" + response.getType()+"\n文档ID:" + response.getId() + "\n当前实例状态:" + response.status());
}
/**
* 插入文档
* @param indexName 索引名
* @param type index类型
* @param id 文档id
* @param pipeline 管道名称
* @param doc XContentBuilder
*/
public static void insertDocument(String indexName, String type,String id,String pipeline, XContentBuilder doc) {
IndexResponse response = getClient().prepareIndex(indexName, type,id).setPipeline(pipeline)
.setSource(doc)
.get();
Logger.info("索引名称:" + response.getIndex() + "\n类型:" + response.getType()+"\n文档ID:" + response.getId() + "\n当前实例状态:" + response.status());
}
/**
*
* @param indexName 索引名
* @param type index类型
* @param json Json格式串
*/
public static void insertDocument(String indexName, String type,String json) {
IndexResponse response = getClient().prepareIndex(indexName, type)
.setSource(json, XContentType.JSON)
.get();
Logger.info("索引名称:" + response.getIndex() + "\n类型:" + response.getType()+"\n文档ID:" + response.getId() + "\n当前实例状态:" + response.status());
}
/**
*
* @param indexName 索引名
* @param type index类型
* @param id 文档id
* @param pipeline 管道名称
* @param json Json格式串
*/
public static void insertDocument(String indexName, String type,String id,String pipeline,String json) {
IndexResponse response = getClient().prepareIndex(indexName, type,id).setPipeline(pipeline)
.setSource(json, XContentType.JSON)
.get();
Logger.info("索引名称:" + response.getIndex() + "\n类型:" + response.getType()+"\n文档ID:" + response.getId() + "\n当前实例状态:" + response.status());
}
/**
* 插入文档
* @param indexName 索引名
* @param type index类型
* @param map
*/
public static void insertDocument(String indexName,String type,Map<String, Object> map){
IndexResponse response = getClient().prepareIndex(indexName, type)
.setSource(map)
.get();
Logger.info("索引名称:" + response.getIndex() + "\n类型:" + response.getType()+"\n文档ID:" + response.getId() + "\n当前实例状态:" + response.status());
}
/**
* 插入文档
* @param indexName 索引名
* @param type index类型
* @param id 文档id
* @param pipeline 管道名称
* @param map
*/
public static void insertDocument(String indexName,String type,String id,String pipeline,Map<String, Object> map){
IndexResponse response = getClient().prepareIndex(indexName, type,id).setPipeline(pipeline)
.setSource(map)
.get();
Logger.info("索引名称:" + response.getIndex() + "\n类型:" + response.getType()+"\n文档ID:" + response.getId() + "\n当前实例状态:" + response.status());
}
/**
* 插入文档
* @param indexName 索引名
* @param type index类型
* @param jsonObject
*/
public static void insertDocument(String indexName,String type,JsonObject jsonObject){
IndexResponse response = getClient().prepareIndex(indexName, type)
.setSource(jsonObject, XContentType.JSON)
.get();
Logger.info("索引名称:" + response.getIndex() + "\n类型:" + response.getType()+"\n文档ID:" + response.getId() + "\n当前实例状态:" + response.status());
}
/**
* 插入文档
* @param indexName 索引名
* @param type index类型
* @param id 文档id
* @param pipeline 管道名称
* @param jsonObject
*/
public static void insertDocument(String indexName,String type,String id,String pipeline,JsonObject jsonObject){
IndexResponse response = getClient().prepareIndex(indexName, type,id).setPipeline(pipeline)
.setSource(jsonObject, XContentType.JSON)
.get();
Logger.info("索引名称:" + response.getIndex() + "\n类型:" + response.getType()+"\n文档ID:" + response.getId() + "\n当前实例状态:" + response.status());
}
/**
* 更新索引库文档数据
* @param indexName 索引名
* @param type index类型
* @param id 文档id
* @param map 需要更新的数据
*/
public static void updateData(String indexName,String type,String id,Map<String,Object> map) {
UpdateResponse response = getClient().prepareUpdate(indexName, type, id)
.setDoc(map)
.get();
Logger.info("索引名称:" + response.getIndex() + "\n类型:" + response.getType()+"\n文档ID:" + response.getId() + "\n当前实例状态:" + response.status());
}
/**
* 删除索引库文档数据
* @param indexName 索引名
* @param type index类型
* @param id 文档id
*/
public static void deleteData(String indexName,String type,String id) {
DeleteResponse response = getClient().prepareDelete(indexName, type, id)
.get();
Logger.info("索引名称:" + response.getIndex() + "\n类型:" + response.getType()+ "\n文档ID:" + response.getId() + "\n当前实例状态:" + response.status());
}
/**
* 从索引库获取数据
* @param client
* @param indexName 索引名
* @param type index类型
* @param id 文档id
* @return
*/
public static String getData(String indexName,String type,String id) {
GetResponse getResponse = getClient().prepareGet(indexName, type, id)
.get();
Logger.info("索引库的数据:" +getResponse.getSourceAsString());
return getResponse.getSourceAsString();
}
elasticsearch 案例demo
import static org.elasticsearch.common.xcontent.XContentFactory.jsonBuilder;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ExecutionException;
import org.apache.commons.collections.MapUtils;
import org.apache.commons.lang.StringUtils;
import org.elasticsearch.action.ingest.PutPipelineRequest;
import org.elasticsearch.action.ingest.WritePipelineResponse;
import org.elasticsearch.action.search.SearchRequestBuilder;
import org.elasticsearch.action.search.SearchResponse;
import org.elasticsearch.action.search.SearchType;
import org.elasticsearch.common.bytes.BytesArray;
import org.elasticsearch.common.text.Text;
import org.elasticsearch.common.xcontent.XContentBuilder;
import org.elasticsearch.common.xcontent.XContentType;
import org.elasticsearch.index.query.BoolQueryBuilder;
import org.elasticsearch.index.query.QueryBuilder;
import org.elasticsearch.index.query.QueryBuilders;
import org.elasticsearch.search.SearchHit;
import org.elasticsearch.search.SearchHits;
import org.elasticsearch.search.fetch.subphase.highlight.HighlightBuilder;
import org.elasticsearch.search.fetch.subphase.highlight.HighlightField;
import com.coyee.core.vo.Pager;
/**
* elasticsearch 档案查询工具类
*
*/
public class ESUtil {
public static final String INDEX_NAME="wsbp_mxl";//索引名
public static final String INDEX_TYPE="archives_mxl";//index类型
public static final String FILE_INDEX_NAME="wsbp_mxl_file";//索引名
public static final String FILE_INDEX_TYPE="archives_mxl_file";//index类型
public static final String PIPELINE_NAME="pipeline_mxl";//管道名称
/**
* 1、创建Index
* @param index_name 索引名称
*/
public static void createIndex(String index_name) {
System.out.println(ElasticSearcUtil.createIndex(index_name));
}
/**
* 2、创建Mapping(档案）
*/
public static void createMapping() {
try {
XContentBuilder builder = jsonBuilder()
.startObject()
.startObject("properties")
.startObject("id") //id字段
.field("type", "keyword")
.endObject()
.startObject("name") //name 名称
.field("type", "keyword")
.endObject()
.startObject("file_type")//类型
.field("type", "keyword")
.endObject()
.startObject("author")//人
.field("type", "keyword")
.endObject()
.startObject("years")//年
.field("type", "keyword")
.endObject()
.startObject("create_time") //创建日期
.field("type", "date")
.field("format", "yyyy-MM-dd HH:mm:ss||yyyy-MM-dd")
.endObject()
.startObject("content") //关键字搜索文本内容
.field("type", "text")
.field("analyzer", "ik_max_word")
.field("search_analyzer", "ik_max_word")
.endObject()
//.startObject("data") //文件内容
//.field("type", "text")
//.field("analyzer", "ik_max_word") //细粒度 ik_smart 粗粒度
//.field("search_analyzer", "ik_max_word")
//.endObject()
.endObject()
.endObject();
ElasticSearcUtil.setMapping(INDEX_NAME, INDEX_TYPE, builder);
} catch (IOException e) {
e.printStackTrace();
}
}
/**
* 2、创建Mapping(文件）
*/
public static void createMappingFile() {
try {
XContentBuilder builder = jsonBuilder()
.startObject()
.startObject("properties")
.startObject("file_id") //id字段
.field("type", "keyword")
.endObject()
.startObject("file_data") //文件内容
.field("type", "text")
.field("analyzer", "ik_max_word") //细粒度 ik_smart 粗粒度
.field("search_analyzer", "ik_max_word")
.endObject()
.startObject("archives_id") //档案id
.field("type", "keyword")
.endObject()
.endObject()
.endObject();
ElasticSearcUtil.setMapping(FILE_INDEX_NAME, FILE_INDEX_TYPE, builder);
} catch (IOException e) {
e.printStackTrace();
}
}
/**
* 3、创建pipeline，定义了 2 个预处理器 "attachment" 和 "remove" ，attachment将入库文档字段 "data" 视为文档附件进行文本抽取，"remove" 预处理器用于将其从源文档中删除。
* @param pipeline_name 管道名称
* @throws InterruptedException
* @throws ExecutionException
*/
/** public static void createPipeline() throws InterruptedException, ExecutionException{
String source1 =
"{\"description\":\"my pipeline information\"," +
"\"processors\":[{\"attachment\":{\"field\":\"data\",\"indexed_chars\":-1,\"ignore_missing\":true}},{\"remove\":{\"field\":\"data\"}}]}";
PutPipelineRequest request = new PutPipelineRequest(
PIPELINE_NAME, //管道名称
new BytesArray(source1.getBytes(StandardCharsets.UTF_8)),
XContentType.JSON
);
WritePipelineResponse response = ElasticSearcUtil.getClient().admin().cluster().putPipeline(request).get();
System.out.println(response.isAcknowledged());
}
**/
/**
* 3、创建pipeline
* 定义了 2 个预处理器 "attachment" 和 "remove" ，attachment将入库文档字段 "data" 视为文档附件进行文本抽取，"remove" 预处理器用于将其从源文档中删除。
* @param pipeline_name 管道名称
* @throws InterruptedException
* @throws ExecutionException
*/
public static void createPipelineFile() throws InterruptedException, ExecutionException{
String source1 =
"{\"description\":\"my pipeline information\"," +
"\"processors\":[{\"attachment\":{\"field\":\"file_data\",\"indexed_chars\":-1,\"ignore_missing\":true}},{\"remove\":{\"field\":\"file_data\"}}]}";
PutPipelineRequest request = new PutPipelineRequest(
PIPELINE_NAME, //管道名称
new BytesArray(source1.getBytes(StandardCharsets.UTF_8)),
XContentType.JSON
);
WritePipelineResponse response = ElasticSearcUtil.getClient().admin().cluster().putPipeline(request).get();
System.out.println(response.isAcknowledged());
}
/**
* 插入文档(保存文档数据）
* @param entity
* @param content 关键字搜索文本内容（json字符串）
* @throws IOException
*/
public static void insertDocument(Archives entity,String content) throws IOException {
String id = entity.getId(); //文档id
String name = entity.getName(); //标题
String file_type =String.valueOf(entity.getFile_type());//文件类型
String author = entity.getAuthor();// 人
String years = entity.getYears();//年
String create_time = entity.getGeneration_time();
if(StringUtils.isBlank(create_time)) {//日期-格式为yyyy-MM-dd HH:mm:ss||yyyy-MM-dd 不为空
create_time=DateUtils.format(new Date(), DateUtils.DEFAULT_DATETIME_FORMAT);
}
XContentBuilder doc = jsonBuilder()
.startObject()
.field("id",id)
.field("name",name)
.field("file_type",file_type)
.field("author",author)
.field("years",years)
.field("create_time",create_time)
.field("content",content)
//.field("data",base64Str)
.endObject();
ElasticSearcUtil.insertDocument(INDEX_NAME, INDEX_TYPE,id, doc);
}
/**
* 插入文档（保存档案文件数据）
* @param content 关键字搜索文本内容（json字符串）
* @param base64Str 文件内容(base64转码后的字符串）
* @param archives_id 档案id
* @throws IOException
*/
public static void insertDocumentFile(String file_id,String base64Str,String archives_id) throws IOException {
XContentBuilder doc = jsonBuilder()
.startObject()
.field("file_id",file_id)
.field("file_data",base64Str)
.field("archives_id",archives_id)
.endObject();
ElasticSearcUtil.insertDocument(FILE_INDEX_NAME, FILE_INDEX_TYPE,file_id,PIPELINE_NAME, doc);
}
/**
* 删除索引库文档数据
* @param index_name 索引名称
* @param index_type 索引类型
* @param id 文档id
*/
public static void deleteData(String index_name,String index_type,String id) {
ElasticSearcUtil.deleteData(index_name, index_type, id);
}
/**
* 组合查询
* termQuery("key", obj) 完全匹配
* termsQuery("key", obj1, obj2..) 一次匹配多个值
* matchQuery("key", Obj) 单个匹配, field不支持通配符, 前缀具高级特性
* multiMatchQuery("text", "field1", "field2"..); 匹配多个字段, field有通配符忒行
* matchAllQuery(); 匹配所有文件
* @throws Exception
*/
public static void searchMutil()throws IOException{
SearchRequestBuilder srb=ElasticSearcUtil.getClient().prepareSearch(FILE_INDEX_NAME).setTypes(FILE_INDEX_TYPE);
//QueryBuilder queryBuilder=QueryBuilders.matchQuery("name", "严重、信号差");
//QueryBuilder queryBuilder2=QueryBuilders.matchPhraseQuery("desc", "设备");
QueryBuilder queryBuilder3=QueryBuilders.matchQuery("attachment.content", "熊猫");
SearchResponse sr=srb.setQuery(QueryBuilders.boolQuery()
//.must(queryBuilder)//文档 必须 匹配这些条件才能被包含进来
//.mustNot(queryBuilder2)//文档 必须不 匹配这些条件才能被包含进来
//.must(queryBuilder3)//如果满足这些语句中的任意语句，将增加 _score ，否则，无任何影响。它们主要用于修正每个文档的相关性得分
)
.execute()
.actionGet();
SearchHits hits=sr.getHits();
for(SearchHit hit:hits){
System.out.println(hit.getSourceAsString());
}
}
/**
* 多个字段的模糊查询，分页不高亮
* @param keyword 关键字
* @param pager
* @param queryMap 查询附加条件
* @return
*/
public static Pager findPagerQueryES(String keyword,Pager pager,Map<String,String> queryMap) {
boolean explain = true;
try {
BoolQueryBuilder query = QueryBuilders.boolQuery();
//关键字查询
if (StringUtils.isNotBlank(keyword)) {
query.must(QueryBuilders.boolQuery()
.should(QueryBuilders.matchQuery("content",keyword )) //分词匹配
.should(QueryBuilders.matchQuery("attachment.content", keyword)));
}
String name = MapUtils.getString(queryMap, "name");//名称
if(StringUtils.isNotBlank(name)) {
query.must(QueryBuilders.wildcardQuery("name","*"+name+"*" ));//模糊匹配
}
String file_type = MapUtils.getString(queryMap, "file_type");//类型
if(StringUtils.isNotBlank(file_type)) {
query.must(QueryBuilders.termQuery("file_type",file_type ));//绝对匹配
}
String author = MapUtils.getString(queryMap, "author");//立档人
if(StringUtils.isNotBlank(author)) {
query.must(QueryBuilders.wildcardQuery("author","*"+author+"*" ));//模糊匹配
}
String years = MapUtils.getString(queryMap, "years");//年
if(StringUtils.isNotBlank(years)) {
query.must(QueryBuilders.termQuery("years",years )); //绝对匹配
}
String sta_time = MapUtils.getString(queryMap, "startTime");//开始日期
if(StringUtils.isNotBlank(sta_time)) {
query.must(QueryBuilders.rangeQuery("create_time").gte(sta_time));
}
String end_time = MapUtils.getString(queryMap, "endTime");//结束日期
if(StringUtils.isNotBlank(end_time)) {
query.must(QueryBuilders.rangeQuery("create_time").lte(end_time));
}
SearchRequestBuilder srb =ElasticSearcUtil.getClient().prepareSearch(INDEX_NAME)
.setSearchType(SearchType.DFS_QUERY_THEN_FETCH)
.setTypes(INDEX_TYPE)
.setQuery(query)
//分页
.setFrom((pager.getPageNumber() - 1) * pager.getPageSize()).setSize(pager.getPageSize())
//是否按匹配度排序
.setExplain(explain);
SearchResponse response = srb.execute().actionGet();
SearchHits hits = response.getHits();
pager.setTotalCount((int) hits.getTotalHits());
List<String> list = new ArrayList<>();
hits.forEach(searchHit -> {
Map<String, Object> source = searchHit.getSourceAsMap();//源数据
String resultMap = MapUtils.getString(source, "id"); //返回数据集
list.add(resultMap);
});
pager.setList(list);
} catch (Exception e) {
e.printStackTrace();
}
return pager;
}
/**
* 多个字段的模糊查询，分页高亮
* @param keyword 关键字
* @param pager
* @param queryMap 查询附加条件
* @return
*/
@SuppressWarnings("unused")
public static Pager findPagerQueryESHighlight(String keyword,Pager pager,Map<String,Object> queryMap) {
boolean highlight = true;
boolean explain = true;
String sortName = "create_time";
String sortOrder = "desc";
try {
BoolQueryBuilder query = QueryBuilders.boolQuery();
//关键字查询
if (StringUtils.isNotBlank(keyword)) {
query.must(QueryBuilders.boolQuery()
.should(QueryBuilders.matchQuery("content",keyword )) //分词匹配
.should(QueryBuilders.matchQuery("attachment.content", keyword)));
}
String name = MapUtils.getString(queryMap, "name");//档案名称
if(StringUtils.isNotBlank(name)) {
query.must(QueryBuilders.wildcardQuery("name","*"+name+"*" ));//模糊匹配
}
String file_type = MapUtils.getString(queryMap, "file_type");//类型
if(StringUtils.isNotBlank(file_type)) {
query.must(QueryBuilders.termQuery("file_type",file_type ));//绝对匹配
}
String author = MapUtils.getString(queryMap, "author");//人
if(StringUtils.isNotBlank(author)) {
query.must(QueryBuilders.wildcardQuery("author","*"+author+"*" ));//模糊匹配
}
String years = MapUtils.getString(queryMap, "years");//年
if(StringUtils.isNotBlank(years)) {
query.must(QueryBuilders.termQuery("years",years )); //绝对匹配
}
String sta_time = MapUtils.getString(queryMap, "startTime");//开始日期
if(StringUtils.isNotBlank(sta_time)) {
query.must(QueryBuilders.rangeQuery("create_time").gte(sta_time));
}
String end_time = MapUtils.getString(queryMap, "endTime");//结束日期
if(StringUtils.isNotBlank(end_time)) {
query.must(QueryBuilders.rangeQuery("create_time").lte(end_time));
}
SearchRequestBuilder srb =ElasticSearcUtil.getClient().prepareSearch(INDEX_NAME)
.setSearchType(SearchType.DFS_QUERY_THEN_FETCH)
.setTypes(INDEX_TYPE)
.setQuery(query)
//分页
.setFrom((pager.getPageNumber() - 1) * pager.getPageSize()).setSize(pager.getPageSize())
//是否按匹配度排序
.setExplain(explain);
if (highlight) {
HighlightBuilder highlightBuilder = new HighlightBuilder().field("*").requireFieldMatch(false);
highlightBuilder.preTags("<span style=\"color:red\">");
highlightBuilder.postTags("</span>");
srb.highlighter(highlightBuilder);
}
/** if (StringUtils.isNotBlank(sortName)) {
String[] sortNames = StringUtils.split(sortName, ",");
if ("asc".equalsIgnoreCase(sortOrder)) {
for (String s : sortNames) {
srb.addSort(s, SortOrder.ASC);
}
} else {
for (String s : sortNames) {
srb.addSort(s, SortOrder.DESC);
}
}
}
**/
SearchResponse response = srb.execute().actionGet();
SearchHits hits = response.getHits();
pager.setTotalCount((int) hits.getTotalHits());
List<Map<String, Object>> list = new ArrayList<>();
hits.forEach(searchHit -> {
Map<String, Object> source = searchHit.getSourceAsMap();//源数据
Map<String, Object> resultMap = new HashMap<String, Object>(); //返回数据集
Map<String, HighlightField> highlightFields = searchHit.getHighlightFields();
//title高亮
HighlightField titleField = highlightFields.get("name");
dealHighlightField(titleField, source, resultMap, "name");
//create_time
resultMap.put("create_time", MapUtils.getString(source, "create_time"));
//id
resultMap.put("id", MapUtils.getString(source, "id"));
list.add(resultMap);
});
pager.setList(list);
} catch (Exception e) {
e.printStackTrace();
}
return pager;
}
/**
* 多个字段的模糊查询
* @param keyword 关键字
* @param pager
* @param queryMap 查询附加条件
* @return
*/
/** public static List<String> findIdsQueryES(String keyword,Map<String,String> queryMap) {
boolean explain = true;
List<String> list = new ArrayList<>();
try {
BoolQueryBuilder query = QueryBuilders.boolQuery();
//关键字查询
if (StringUtils.isNotBlank(keyword)) {
query.must(QueryBuilders.boolQuery()
.should(QueryBuilders.matchQuery("content",keyword )) //分词匹配
.should(QueryBuilders.matchQuery("attachment.content", keyword)));
}
String name = MapUtils.getString(queryMap, "name");//档案名称
if(StringUtils.isNotBlank(name)) {
query.must(QueryBuilders.wildcardQuery("name","*"+name+"*" ));//模糊匹配
}
String file_type = MapUtils.getString(queryMap, "file_type");//类型
if(StringUtils.isNotBlank(file_type)) {
query.must(QueryBuilders.termQuery("file_type",file_type ));//绝对匹配
}
String author = MapUtils.getString(queryMap, "author");//人
if(StringUtils.isNotBlank(author)) {
query.must(QueryBuilders.wildcardQuery("author","*"+author+"*" ));//模糊匹配
}
String years = MapUtils.getString(queryMap, "years");//年
if(StringUtils.isNotBlank(years)) {
query.must(QueryBuilders.termQuery("years",years )); //绝对匹配
}
String sta_time = MapUtils.getString(queryMap, "startTime");//开始日期
if(StringUtils.isNotBlank(sta_time)) {
query.must(QueryBuilders.rangeQuery("create_time").gte(sta_time));
}
String end_time = MapUtils.getString(queryMap, "endTime");//结束日期
if(StringUtils.isNotBlank(end_time)) {
query.must(QueryBuilders.rangeQuery("create_time").lte(end_time));
}
SearchRequestBuilder srb =ElasticSearcUtil.getClient().prepareSearch(INDEX_NAME)
.setSearchType(SearchType.DFS_QUERY_THEN_FETCH)
.setTypes(INDEX_TYPE)
.setQuery(query)
//分页
// .setFrom((pager.getPageNumber() - 1) * pager.getPageSize()).setSize(pager.getPageSize())
//是否按匹配度排序
.setExplain(explain);
SearchResponse response = srb.execute().actionGet();
SearchHits hits = response.getHits();
hits.forEach(searchHit -> {
Map<String, Object> source = searchHit.getSourceAsMap();//源数据
String resultMap = MapUtils.getString(source, "id"); //返回数据集
list.add(resultMap);
});
} catch (Exception e) {
e.printStackTrace();
}
return list;
}
**/
/**
* 多个字段的模糊查询（查询文档id集合）
* @param keyword 关键字
* @param pager
* @param queryMap 查询附加条件
* @return
*/
public static List<String> findIdsQueryES(String keyword,Map<String,String> queryMap) {
boolean explain = true;
List<String> list = new ArrayList<>();
List<String> ids = new ArrayList<>();
//关键字查询
if (StringUtils.isNotBlank(keyword)) {
SearchRequestBuilder builder =ElasticSearcUtil.getClient().prepareSearch(FILE_INDEX_NAME).setSize(1000)
.setSearchType(SearchType.DFS_QUERY_THEN_FETCH)
.setTypes(FILE_INDEX_TYPE)
.setQuery(QueryBuilders.boolQuery().should(QueryBuilders.matchQuery("attachment.content", keyword)))
//是否按匹配度排序
.setExplain(explain);
SearchHits searchHits = builder.execute().actionGet().getHits();
searchHits.forEach(searchHit -> {
Map<String, Object> source = searchHit.getSourceAsMap();//源数据
String resultMap = MapUtils.getString(source, "archives_id"); //返回文档id
ids.add(resultMap);
});
}
try {
BoolQueryBuilder query = QueryBuilders.boolQuery();
//关键字查询
if (StringUtils.isNotBlank(keyword)) {
BoolQueryBuilder query1 = QueryBuilders.boolQuery();
query1.should(QueryBuilders.matchQuery("content",keyword));
query1.should(QueryBuilders.wildcardQuery("name","*"+keyword+"*" ));
ids.forEach(archives_id -> {
query1.should(QueryBuilders.matchQuery("id",archives_id));
});
query.must(query1) ;
}
String name = MapUtils.getString(queryMap, "name");//档案名称
if(StringUtils.isNotBlank(name)) {
query.must(QueryBuilders.wildcardQuery("name","*"+name+"*" ));//模糊匹配
}
String file_type = MapUtils.getString(queryMap, "file_type");//文件类型
if(StringUtils.isNotBlank(file_type)) {
query.must(QueryBuilders.termQuery("file_type",file_type ));//绝对匹配
}
String author = MapUtils.getString(queryMap, "author");//人
if(StringUtils.isNotBlank(author)) {
query.must(QueryBuilders.wildcardQuery("author","*"+author+"*" ));//模糊匹配
}
String years = MapUtils.getString(queryMap, "years");//代
if(StringUtils.isNotBlank(years)) {
query.must(QueryBuilders.termQuery("years",years )); //绝对匹配
}
String sta_time = MapUtils.getString(queryMap, "startTime");//开始日期
if(StringUtils.isNotBlank(sta_time)) {
query.must(QueryBuilders.rangeQuery("create_time").gte(sta_time));
}
String end_time = MapUtils.getString(queryMap, "endTime");//结束日期
if(StringUtils.isNotBlank(end_time)) {
query.must(QueryBuilders.rangeQuery("create_time").lte(end_time));
}
SearchRequestBuilder srb =ElasticSearcUtil.getClient().prepareSearch(INDEX_NAME).setSize(1000)
.setSearchType(SearchType.DFS_QUERY_THEN_FETCH)
.setTypes(INDEX_TYPE)
.setQuery(query)
//分页
// .setFrom((pager.getPageNumber() - 1) * pager.getPageSize()).setSize(pager.getPageSize())
//是否按匹配度排序
.setExplain(explain);
SearchResponse response = srb.execute().actionGet();
SearchHits hits = response.getHits();
hits.forEach(searchHit -> {
Map<String, Object> source = searchHit.getSourceAsMap();//源数据
String resultMap = MapUtils.getString(source, "id"); //返回数据集
list.add(resultMap);
});
} catch (Exception e) {
e.printStackTrace();
}
return list;
}
/**
* 多个字段的模糊查询（查询文件id集合）
* @param archives_id 档案id
* @return
*/
public static List<String> findFileIdsQueryES(String archives_id) {
List<String> list = new ArrayList<>();
try {
SearchRequestBuilder srb=ElasticSearcUtil.getClient().prepareSearch(FILE_INDEX_NAME).setTypes(FILE_INDEX_TYPE);
QueryBuilder queryBuilder3=QueryBuilders.matchQuery("archives_id", archives_id);
SearchResponse sr=srb.setQuery(QueryBuilders.boolQuery()
.must(queryBuilder3)
)
.execute()
.actionGet();
SearchHits hits=sr.getHits();
hits.forEach(searchHit -> {
Map<String, Object> source = searchHit.getSourceAsMap();//源数据
String resultMap = MapUtils.getString(source, "file_id"); //返回数据集
list.add(resultMap);
});
} catch (Exception e) {
e.printStackTrace();
}
return list;
}
/**
* 控制高亮
* @param highlightField
* @param source 源数据map
* @param resultMap 结果数据
* @param filed 需要高亮的字段
* @return
*/
public static void dealHighlightField (HighlightField highlightField,Map<String,Object> source,Map<String,Object> resultMap,String filed) {
if (highlightField != null) {
Text[] fragments = highlightField.fragments();
String tmp = "";
for (Text text : fragments) {
tmp += text;
}
resultMap.put(filed, tmp);
}else {
resultMap.put(filed,MapUtils.getString(source, filed) );
}
}
/**
* 判断日期是否为指定格式字符串
* @param dataStr 日期字符串
* @param pattern 日期字符串格式yyyy-MM
* @return
*/
public static boolean dateFormat(String dataStr,String pattern) {
SimpleDateFormat format=new SimpleDateFormat(pattern);
boolean dateflag=true;
try
{
format.parse(dataStr);
} catch (ParseException e)
{
dateflag=false;
}
return dateflag;
}
public static void main(String[] args) throws IOException, InterruptedException, java.util.concurrent.ExecutionException {
/**
ElasticSearcUtil.deleteIndex(ESUtil.INDEX_NAME);
ElasticSearcUtil.deleteIndex(ESUtil.FILE_INDEX_NAME);
ESUtil.createIndex(ESUtil.INDEX_NAME);
ESUtil.createIndex(ESUtil.FILE_INDEX_NAME);
ESUtil.createMapping();
ESUtil.createMappingFile();
ESUtil.createPipelineFile();
**/
//插入数据
/**
Archives archives = new Archives();
archives.setId("a1");
archives.setName("关于XXX的文档1");
archives.setFile_type("文件");
archives.setAuthor("发布人");
archives.setYears("2019年");
archives.setGeneration_time("2019-08-26");
insertDocument(archives, "文档介绍等内容");
insertDocumentFile("f1", FileToBase64Util.fileToBase64("D:\\2.txt"), "a1");
ElasticSearcUtil.getData(ESUtil.INDEX_NAME, ESUtil.INDEX_TYPE, "a1");
ElasticSearcUtil.getData(ESUtil.FILE_INDEX_NAME, ESUtil.FILE_INDEX_TYPE, "f1");
**/
}
}
base64转换工具类
package com.wisesoft.util.elasticsearch;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.net.URLConnection;
import java.util.Base64;
import org.apache.commons.lang.StringUtils;
import sun.misc.BASE64Encoder;
/**
* 文件转换为base64编码
* @author yilei
*
*/
@SuppressWarnings("restriction")
public class FileToBase64Util {
/**
* 将本地文件转base64字符串
* @param path 文件路径
* @return
*/
public static String fileToBase64(String path) {
String base64 = null;
InputStream in = null;
try {
File file = new File(path);
in = new FileInputStream(file);
byte[] bytes=new byte[(int)file.length()];
in.read(bytes);
base64 = Base64.getEncoder().encodeToString(bytes);
} catch (Exception e) {
e.printStackTrace();
} finally {
if (in != null) {
try {
in.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
return base64;
}
public static String encodeBase64File(String path) throws Exception {
File file = new File(path);;
FileInputStream inputFile = new FileInputStream(file);
byte[] buffer = new byte[(int) file.length()];
inputFile.read(buffer);
inputFile.close();
return new BASE64Encoder().encode(buffer);
}
/**
* 将网络文件转base64字符串
* @param path 文件路径
* @return
*/
public static String fileToBse64NetWork(String path) {
// 下载网络文件
String base64 = null;
int byteread = 0;
byte[] totalbyte = new byte[0];
try {
URL url = new URL(path);
URLConnection conn = url.openConnection();
InputStream inStream = conn.getInputStream();
byte[] buffer = new byte[1204];
while ((byteread = inStream.read(buffer)) != -1) {
//拼接流，这样写是保证文件不会被篡改
totalbyte = byteMerger(totalbyte,buffer,byteread);
}
inStream.close();
base64=new BASE64Encoder().encode(totalbyte);
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
return base64;
}
/**
* BASE64解码成File文件
* @param destPath 保存路径
* @param base64 base64字符串
* @param fileName 文件名称+后缀名
*/
public static void base64ToFile(String destPath,String base64, String fileName) {
File file = null;
//创建文件目录
String filePath=destPath;
File dir=new File(filePath);
if (!dir.exists() && !dir.isDirectory()) {
dir.mkdirs();
}
BufferedOutputStream bos = null;
java.io.FileOutputStream fos = null;
try {
byte[] bytes = Base64.getDecoder().decode(base64);
file=new File(filePath+"/"+fileName);
fos = new java.io.FileOutputStream(file);
bos = new BufferedOutputStream(fos);
bos.write(bytes);
} catch (Exception e) {
e.printStackTrace();
} finally {
if (bos != null) {
try {
bos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
if (fos != null) {
try {
fos.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
/**
* 拼接byte[]类型数据
*/
public static byte[] byteMerger(byte[] byte_1, byte[] byte_2,int byteread){
byte[] byte_3 = new byte[byte_1.length+byteread];
System.arraycopy(byte_1, 0, byte_3, 0, byte_1.length);
System.arraycopy(byte_2, 0, byte_3, byte_1.length, byteread);
return byte_3;
}
public static void main(String[] args) throws Exception {
FileToBase64Util.base64ToFile("D:\\","s8m2vMrQzuS67sf4tPPQ3MOoILaltqW2pbaltqW2pbaltqW2pbaltqW2pbaltqW2pbaltqW2pbal","1.txt");
//System.out.println(FileToBase64Util.fileToBase64("D:\\1.docx"));
}
}
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