springboot整合ElasticSearch7.X实现简单增删改查+多条件查询
这边主要是demo，具体业务根据自己得流程创建就ok
一.导入相应的依赖
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>2.1.6.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.elasticsearch.client/elasticsearch-rest-high-level-client -->
<dependency>
<groupId>org.elasticsearch.client</groupId>
<artifactId>elasticsearch-rest-high-level-client</artifactId>
<version>7.1.1</version>
</dependency>
<dependency>
<groupId>org.elasticsearch</groupId>
<artifactId>elasticsearch</artifactId>
<version>7.1.1</version>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.58</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid-spring-boot-starter</artifactId>
<version>1.1.10</version>
</dependency>
<dependency>
<groupId>org.mybatis.spring.boot</groupId>
<artifactId>mybatis-spring-boot-starter</artifactId>
<version>2.0.1</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<scope>runtime</scope>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.commons/commons-lang3 -->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.9</version>
</dependency>
工具方法：将对象转为map对象
public static <T> Map<String, Object> beanToMap(T bean) {
Map<String, Object> map = new HashMap<>();
if (bean != null) {
BeanMap beanMap = BeanMap.create(bean);
for (Object key : beanMap.keySet()) {
if(beanMap.get(key) != null)
map.put(key + "", beanMap.get(key));
}
}
return map;
}
ym配置
spring:
datasource:
url: jdbc:mysql://localhost:3306/nba?useUnicode=true&characterEncoding=utf-8&serverTimezone=Asia/Shanghai
username: root
password: 123456
druid:
initial-size: 5 #连接池初始化大小
min-idle: 10 #最小空闲连接数
max-active: 20 #最大连接数
web-stat-filter:
exclusions: "*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*" #不统计这些请求数据
stat-view-servlet: #访问监控网页的登录用户名和密码
login-username: druid
login-password: druid
server:
port: 8080
#mybatis:
# mapper-locations:
# - classpath:dao/*.xml
# - classpath*:com/**/mapper/*.xml
logging:
level:
root: info
com.xdclass.search: debug
elasticsearch:
host: 192.168.137.131
port: 9200
配置类
@Configuration
@ConfigurationProperties(prefix = "elasticsearch")
public class EsConfig {
private String host;
private Integer port;
@Bean(destroyMethod = "close")
public RestHighLevelClient client() {
return new RestHighLevelClient(RestClient.builder(
new HttpHost(host, port, "http")
));
}
public String getHost() {
return host;
}
public void setHost(String host) {
this.host = host;
}
public Integer getPort() {
return port;
}
public void setPort(Integer port) {
this.port = port;
}
}
二.增加数据
@Resource
private RestHighLevelClient client;
@Resource
private NBAPlayerDao nbaPlayerDao;
private static final String NBA_INDEX = "nba_latest";
private static final int START_OFFSET = 0;
private static final int MAX_COUNT = 1000;
@Override
public boolean addPlayer(NBAPlayer player, String id) throws IOException {
IndexRequest request = new IndexRequest(NBA_INDEX).id(id).source(beanToMap(player));
IndexResponse response = client.index(request, RequestOptions.DEFAULT);
System.out.println(JSONObject.toJSON(response));
return false;
}
三.查询数据（根据id）
@Override
public Map<String,Object> getPlayer(String id) throws IOException {
GetRequest getRequest = new GetRequest(NBA_INDEX,id);
GetResponse response = client.get(getRequest,RequestOptions.DEFAULT);
return response.getSource();
}
四.更新数据
@Override
public boolean updatePlayer(NBAPlayer player,String id) throws IOException {
UpdateRequest request = new UpdateRequest(NBA_INDEX,id).doc(beanToMap(player));
UpdateResponse response = client.update(request,RequestOptions.DEFAULT);
System.out.println(JSONObject.toJSON(response));
return true;
}
五.删除数据
@Override
public boolean deletePlayer(String id) throws IOException {
DeleteRequest request = new DeleteRequest(NBA_INDEX,id);
client.delete(request,RequestOptions.DEFAULT);
return true;
}
六.删除所有数据
@Override
public boolean deleteAllPlayer() throws IOException {
DeleteByQueryRequest request = new DeleteByQueryRequest(NBA_INDEX);
BulkByScrollResponse response = client.deleteByQuery(request,RequestOptions.DEFAULT);
return true;
}
七.导入所有数据
@Override
public boolean importAll() throws IOException {
List<NBAPlayer> list = nbaPlayerDao.selectAll();
for(NBAPlayer player: list){
addPlayer(player,String.valueOf(player.getId()));
}
return true;
}
八.单条件匹配查询+分页
@Override
public List<NBAPlayer> searchMatch(String key,String value) throws IOException {
SearchRequest searchRequest = new SearchRequest(NBA_INDEX);
SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
searchSourceBuilder.query(QueryBuilders.matchQuery(key,value));
searchSourceBuilder.from(START_OFFSET);
searchSourceBuilder.size(MAX_COUNT);
searchRequest.source(searchSourceBuilder);
SearchResponse response = client.search(searchRequest,RequestOptions.DEFAULT);
System.out.println(JSONObject.toJSON(response));
SearchHit[] hits = response.getHits().getHits();
List<NBAPlayer> playerList = new LinkedList<>();
for(SearchHit hit: hits){
NBAPlayer player = JSONObject.parseObject(hit.getSourceAsString(),NBAPlayer.class);
playerList.add(player);
}
return playerList;
}
九.词条查询
@Override
public List<NBAPlayer> searchTerm(String key,String value) throws IOException {
SearchRequest searchRequest = new SearchRequest(NBA_INDEX);
SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
searchSourceBuilder.query(QueryBuilders.termQuery(key,value));
searchSourceBuilder.from(START_OFFSET);
searchSourceBuilder.size(MAX_COUNT);
searchRequest.source(searchSourceBuilder);
SearchResponse response = client.search(searchRequest,RequestOptions.DEFAULT);
System.out.println(JSONObject.toJSON(response));
SearchHit[] hits = response.getHits().getHits();
List<NBAPlayer> playerList = new LinkedList<>();
for(SearchHit hit: hits){
NBAPlayer player = JSONObject.parseObject(hit.getSourceAsString(),NBAPlayer.class);
playerList.add(player);
}
return playerList;
}
十.前缀查询
@Override
public List<NBAPlayer> searchMatchPrefix(String key,String value) throws IOException {
SearchRequest searchRequest = new SearchRequest(NBA_INDEX);
SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
searchSourceBuilder.query(QueryBuilders.prefixQuery(key,value));
searchSourceBuilder.from(START_OFFSET);
searchSourceBuilder.size(MAX_COUNT);
searchRequest.source(searchSourceBuilder);
SearchResponse response = client.search(searchRequest,RequestOptions.DEFAULT);
System.out.println(JSONObject.toJSON(response));
SearchHit[] hits = response.getHits().getHits();
List<NBAPlayer> playerList = new LinkedList<>();
for(SearchHit hit: hits){
NBAPlayer player = JSONObject.parseObject(hit.getSourceAsString(),NBAPlayer.class);
playerList.add(player);
}
return playerList;
}
十一.多条件查询
SearchRequest searchRequest = new SearchRequest();
SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
QueryBuilder matchPhraseQueryBuilder = QueryBuilders.matchPhraseQuery("displayNameEn", "james");
QueryBuilder matchPhraseQueryBuilder1 = QueryBuilders.matchPhraseQuery("displayName", "贾斯汀");
searchSourceBuilder.query(QueryBuilders.boolQuery()
.must(matchPhraseQueryBuilder)
.must(matchPhraseQueryBuilder1));
searchRequest.source(searchSourceBuilder);
SearchResponse search = client.search(searchRequest, RequestOptions.DEFAULT);
SearchHit[] hits = search.getHits().getHits();
List<NBAPlayer> playerList = new LinkedList<>();
for(SearchHit hit: hits){
NBAPlayer player = JSONObject.parseObject(hit.getSourceAsString(),NBAPlayer.class);
playerList.add(player);
System.out.println("===========>"+player);
}