kibana 控制台

# 查询所有数据
GET /yixiurds_dev/_search
{
"query": {
"match_all": {
}
}
} # 查询数据
GET /yixiurds_dev/elasticsearch/_search
{
"query": {
"match": {
"id":126
}
}
} # 添加数据
POST /yixiurds_dev/elasticsearch/
{
"id":126,
"name":"测试",
"picture":"//yixiulian.oss-cn-shenzhen.aliyuncs.com/youpin/storage/376b74064cfeba5eff83b13ec24a269a.jpg",
"seo_title": "",
"seo_keywords": ""
} # 修改数据
PUT /yixiurds_dev/elasticsearch/MQmk2msBS7i08yOenxyX
{
"id":126,
"name":"测试2",
"picture":"//yixiulian.oss-cn-shenzhen.aliyuncs.com/youpin/storage/376b74064cfeba5eff83b13ec24a269a.jpg",
"seo_title": "",
"seo_keywords": "" } # 不能删除数据
DELETE /yixiurds_dev/elasticsearch/_delete
{
"id":126
} # 删除数据
DELETE /yixiurds_dev/elasticsearch/MQmk2msBS7i08yOenxyX
{} # 删除索引
DELETE /yixiurds_dev # 创建索引
PUT /yixiurds_dev

代码示例

@Component
public class ElasticsearchUtils { private static final Logger logger = LoggerFactory.getLogger(ElasticsearchUtils.class);
private static String elasticHostName;
private static String elasticUserName;
private static String elasticPassword;
private static String elasticIndex;
private static RestClient restClient; private static RestClient getRestClient() {
if (restClient == null) {
synchronized (ElasticsearchUtils.class) {
if (restClient == null) {
CredentialsProvider credentialsProvider = new BasicCredentialsProvider();
credentialsProvider.setCredentials(AuthScope.ANY, new UsernamePasswordCredentials(elasticUserName, elasticPassword));
restClient = RestClient.builder(new HttpHost(elasticHostName, 9200))
.setHttpClientConfigCallback(httpClientBuilder -> httpClientBuilder.setDefaultCredentialsProvider(credentialsProvider)).build();
}
return restClient;
}
} else {
return restClient;
}
} /**
* 更新搜索的商品
*/
public static void updateGoodsList(List<Goods> goodsList) {
RestClient restClient = getRestClient();
goodsList.forEach(goods -> {
GoodsEsResp goodsEsResp = getGoods(goods.getId());
List<String> esIds = goodsEsResp.getEsIds();
if (CollectionUtils.isEmpty(esIds)) {
return;
} esIds.forEach(esId -> {
String method = "PUT";
String endpoint = "/" + elasticIndex + "/elasticsearch/" + esId;
HttpEntity entity = new NStringEntity(
"{\n" +
" \"id\" : " + goods.getId() + ",\n" +
" \"name\" : \"" + goods.getName()+ "\",\n" +
" \"picture\" : \"" + goods.getPicture() + "\",\n" +
" \"seo_title\" : \"" + goods.getSeoTitle() + "\",\n" +
" \"seo_keywords\" : \"" + goods.getSeoKeywords() + "\"\n" +
"}", ContentType.APPLICATION_JSON); Response response = null;
try {
response = restClient.performRequest(method, endpoint, Collections.<String, String>emptyMap(), entity);
logger.info(JSON.toJSONString(response));
} catch (IOException e) {
logger.error(e.toString());
} }); });
} /**
* 添加搜索的商品
*/
public static void addGoodsList(List<Goods> goodsList) {
RestClient restClient = getRestClient();
goodsList.forEach(goods -> {
String method = "POST";
String endpoint = "/" + elasticIndex + "/elasticsearch/";
HttpEntity entity = new NStringEntity(
"{\n" +
" \"id\" : " + goods.getId() + ",\n" +
" \"name\" : \"" + goods.getName()+ "\",\n" +
" \"picture\" : \"" + goods.getPicture() + "\",\n" +
" \"seo_title\" : \"" + goods.getSeoTitle() + "\",\n" +
" \"seo_keywords\" : \"" + goods.getSeoKeywords() + "\"\n" +
"}", ContentType.APPLICATION_JSON); Response response = null;
try {
response = restClient.performRequest(method, endpoint, Collections.<String, String>emptyMap(), entity);
logger.info(JSON.toJSONString(response));
} catch (IOException e) {
logger.error(e.toString());
} });
} /**
* 删除搜索的商品
*/
public static void delGoodsList(List<Goods> goodsList) {
RestClient restClient = getRestClient();
goodsList.forEach(goods -> {
GoodsEsResp goodsEsResp = getGoods(goods.getId());
List<String> esIds = goodsEsResp.getEsIds();
if (CollectionUtils.isEmpty(esIds)) {
return;
} esIds.forEach(esId -> {
String method = "DELETE";
String endpoint = "/" + elasticIndex + "/elasticsearch/" + esId;
HttpEntity entity = new NStringEntity(
"{}", ContentType.APPLICATION_JSON);
Response response = null;
try {
response = restClient.performRequest(method, endpoint, Collections.<String, String>emptyMap(), entity);
logger.info(JSON.toJSONString(response));
} catch (IOException e) {
logger.error(e.toString());
} }); });
} /**
* 获取搜索的商品
*/
public static GoodsEsResp getGoods(Long goodsId) {
GoodsEsResp goodsEsResp = new GoodsEsResp();
RestClient restClient = getRestClient();
String method = "GET";
String endpoint = "/" + elasticIndex + "/elasticsearch/_search";
HttpEntity entity = new NStringEntity("{\n" +
" \"query\": {\n" +
" \"match\": {\n" +
" \"id\":" + goodsId + "\n" +
" }\n" +
" }\n" +
"}", ContentType.APPLICATION_JSON); Response response = null;
try {
response = restClient.performRequest(method, endpoint, Collections.<String, String>emptyMap(), entity);
JSONObject jsonObject = JSON.parseObject(EntityUtils.toString(response.getEntity()));
Object hits = jsonObject.get("hits");
JSONArray jsonArray = (JSONArray) ((JSONObject) hits).get("hits");
List<String> esIds = new ArrayList<>();
jsonArray.forEach(o -> {
String esId = (String) ((JSONObject) o).get("_id");
if (StringUtils.isNotBlank(esId)) {
esIds.add(esId);
}
});
goodsEsResp.setEsIds(esIds);
logger.info(JSON.toJSONString(response));
} catch (IOException e) {
logger.error(e.toString());
} return goodsEsResp;
} public String getElasticHostName() {
return elasticHostName;
} @Value("${aliyun_elasticsearch_host}")
public void setElasticHostName(String elasticHostName) {
ElasticsearchUtils.elasticHostName = elasticHostName;
} public String getElasticUserName() {
return elasticUserName;
} @Value("${aliyun_elasticsearch_username}")
public void setElasticUserName(String elasticUserName) {
ElasticsearchUtils.elasticUserName = elasticUserName;
} public String getElasticPassword() {
return elasticPassword;
} @Value("${aliyun_elasticsearch_password}")
public void setElasticPassword(String elasticPassword) {
ElasticsearchUtils.elasticPassword = elasticPassword;
} public String getElasticIndex() {
return elasticIndex;
} @Value("${aliyun_elasticsearch_index}")
public void setElasticIndex(String elasticIndex) {
ElasticsearchUtils.elasticIndex = elasticIndex; }
}

指定ID代替自动生成的_id可以节省一次查询

# 添加数据
POST /index_test/type_test/127
{
"id":127,
"name":"测试",
"picture":"//yixiulian.oss-cn-shenzhen.aliyuncs.com/youpin/storage/376b74064cfeba5eff83b13ec24a269a.jpg",
"seo_title": "",
"seo_keywords": ""
}

查询所有:

# id查询数据
GET /index_test/type_test/127

批量同步

DataWorks定时同步数据库的数据到ES

一个index 对应多个type:

PUT /index_test4
{
"mappings":{
"type_1":{
"_all" : {"enabled" : true},
"properties":{
"field_1":{ "type":"string"},
"field_2":{ "type":"long"}
}
},
"type_2":{
"properties":{
"field_3":{ "type":"string"},
"field_4":{ "type":"date"}
}
}
}
}

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