SpringBoot 整合 Elasticsearch8.0（最新API——Java API Client for Elasticsearch）—— 2、文档操作
SpringBoot 整合 Elasticsearch8.0（最新API——Java API Client for Elasticsearch）—— 2、文档操作
文档操作
1、添加文档
@SpringBootTest
class ElasticsearchStudyApplicationTests {
private RestClient restClient;
private ElasticsearchClient elasticsearchClient;
private ElasticsearchTransport transport;
@BeforeEach
void ElasticsearchClientBuild(){
// Create the low-level client
restClient = RestClient.builder(
new HttpHost("127.0.0.1", 9200)).build();
// Create the transport with a Jackson mapper
transport = new RestClientTransport(
restClient, new JacksonJsonpMapper());
// And create the API client
elasticsearchClient = new ElasticsearchClient(transport);
}
@Test
void addOneDocument() throws IOException {
GoodSpuElasticsearchModel goodSpuElasticsearchModel = new GoodSpuElasticsearchModel(1L, "JavaEE企业级开发", 65, "JavaEE企业级开发.png" , 1, "新华出版社", 30, "书籍");
IndexResponse indexResponse = elasticsearchClient.index(a ->
a.index("good_spu").id(String.valueOf(goodSpuElasticsearchModel.getGoodSpuId())).document(goodSpuElasticsearchModel));
System.out.println("result = " + indexResponse.result().jsonValue());
}
@AfterEach
void ElasticsearchClientDestroy () throws IOException {
transport.close();
restClient.close();
}
}
运行结果：
result = created
使用 Kibana 查看文档
GET /good_spu/_doc/1
{
"_index" : "good_spu",
"_id" : "1",
"_version" : 1,
"_seq_no" : 0,
"_primary_term" : 1,
"found" : true,
"_source" : {
"goodSpuId" : 1,
"goodSpuName" : "JavaEE企业级开发",
"goodSpuPrice" : 65,
"goodSpuPicture" : "JavaEE企业级开发.png",
"goodBrandId" : 1,
"goodBrandName" : "新华出版社",
"goodCategoryId" : 30,
"goodCategoryName" : "书籍"
}
}
2、查询文档
@SpringBootTest
class ElasticsearchStudyApplicationTests {
private RestClient restClient;
private ElasticsearchClient elasticsearchClient;
private ElasticsearchTransport transport;
@BeforeEach
void ElasticsearchClientBuild(){
// Create the low-level client
restClient = RestClient.builder(
new HttpHost("127.0.0.1", 9200)).build();
// Create the transport with a Jackson mapper
transport = new RestClientTransport(
restClient, new JacksonJsonpMapper());
// And create the API client
elasticsearchClient = new ElasticsearchClient(transport);
}
@Test
void getDocuments() throws IOException {
GetResponse getResponse = elasticsearchClient.get(a -> a.index("good_spu").id("1"), GoodSpuElasticsearchModel.class);
System.out.println("result = " + getResponse.source());
}
@AfterEach
void ElasticsearchClientDestroy () throws IOException {
transport.close();
restClient.close();
}
}
运行结果：
result = GoodSpuElasticsearchModel(goodSpuId=1, goodSpuName=JavaEE企业级开发, goodSpuPrice=65, goodSpuPicture=JavaEE企业级开发.png, goodBrandId=1, goodBrandName=新华出版社, goodCategoryId=30, goodCategoryName=书籍)
3、删除文档
@SpringBootTest
class ElasticsearchStudyApplicationTests {
private RestClient restClient;
private ElasticsearchClient elasticsearchClient;
private ElasticsearchTransport transport;
@BeforeEach
void ElasticsearchClientBuild(){
// Create the low-level client
restClient = RestClient.builder(
new HttpHost("127.0.0.1", 9200)).build();
// Create the transport with a Jackson mapper
transport = new RestClientTransport(
restClient, new JacksonJsonpMapper());
// And create the API client
elasticsearchClient = new ElasticsearchClient(transport);
}
@Test
void deleteOneDocument() throws IOException {
DeleteResponse deleteResponse = elasticsearchClient.delete(a ->
a.index("good_spu").id("1"));
System.out.println("result = " + deleteResponse.result());
}
@AfterEach
void ElasticsearchClientDestroy () throws IOException {
transport.close();
restClient.close();
}
}
运行结果：
result = Deleted
4、批量添加文档
@SpringBootTest
class ElasticsearchStudyApplicationTests {
private RestClient restClient;
private ElasticsearchClient elasticsearchClient;
private ElasticsearchTransport transport;
@BeforeEach
void ElasticsearchClientBuild(){
// Create the low-level client
restClient = RestClient.builder(
new HttpHost("127.0.0.1", 9200)).build();
// Create the transport with a Jackson mapper
transport = new RestClientTransport(
restClient, new JacksonJsonpMapper());
// And create the API client
elasticsearchClient = new ElasticsearchClient(transport);
}
@Test
void addDocumentList() throws IOException {
List<GoodSpuElasticsearchModel> list = new ArrayList<>();
list.add(new GoodSpuElasticsearchModel(1L, "Java企业及开发", 50, "Java企业及开发.png" , 1, "新华出版社", 30, "书籍"));
list.add(new GoodSpuElasticsearchModel(2L, "Java编程", 55, "Java编程.png" , 1, "新华出版社", 30, "书籍"));
list.add(new GoodSpuElasticsearchModel(3L, "Java入门到精通", 70, "Java入门到精通.png" , 1, "新华出版社", 30, "书籍"));
list.add(new GoodSpuElasticsearchModel(4L, "Hadoop权威指南", 110, "Hadoop权威指南" , 1, "新华出版社", 30, "书籍"));
list.add(new GoodSpuElasticsearchModel(5L, "编译原理", 75, "编译原理" , 1, "新华出版社", 30, "书籍"));
list.add(new GoodSpuElasticsearchModel(6L, "操作原理", 60, "操作原理" , 1, "新华出版社", 30, "书籍"));
List<BulkOperation> bulkOperations = new ArrayList<>();
list.forEach(a ->
bulkOperations.add(BulkOperation.of(b ->
b.index(c ->
c.id(String.valueOf(a.getGoodSpuId())).document(a)
)
))
);
BulkResponse bulkResponse = elasticsearchClient.bulk(x -> x.index("good_spu").operations(bulkOperations));
bulkResponse.items().forEach(i -> System.out.println("i = " + i.result()));
System.out.println("bulkResponse.errors() = " + bulkResponse.errors());
}
@AfterEach
void ElasticsearchClientDestroy () throws IOException {
transport.close();
restClient.close();
}
}
运行结果：
i = created
i = created
i = created
i = created
i = created
i = created
bulkResponse.errors() = false
使用 Kibana 查看文档
GET good_spu/_search
{
"query": {
"match_all": {}
}
}
{
"took" : 2,
"timed_out" : false,
"_shards" : {
"total" : 1,
"successful" : 1,
"skipped" : 0,
"failed" : 0
},
"hits" : {
"total" : {
"value" : 6,
"relation" : "eq"
},
"max_score" : 1.0,
"hits" : [
{
"_index" : "good_spu",
"_id" : "1",
"_score" : 1.0,
"_source" : {
"goodSpuId" : 1,
"goodSpuName" : "JavaEE企业级开发",
"goodSpuPrice" : 65,
"goodSpuPicture" : "JavaEE企业级开发.png",
"goodBrandId" : 1,
"goodBrandName" : "新华出版社",
"goodCategoryId" : 30,
"goodCategoryName" : "书籍"
}
},
{
"_index" : "good_spu",
"_id" : "2",
"_score" : 1.0,
"_source" : {
"goodSpuId" : 2,
"goodSpuName" : "Java编程",
"goodSpuPrice" : 55,
"goodSpuPicture" : "Java编程.png",
"goodBrandId" : 1,
"goodBrandName" : "新华出版社",
"goodCategoryId" : 30,
"goodCategoryName" : "书籍"
}
},
{
"_index" : "good_spu",
"_id" : "3",
"_score" : 1.0,
"_source" : {
"goodSpuId" : 3,
"goodSpuName" : "Java入门到精通",
"goodSpuPrice" : 70,
"goodSpuPicture" : "Java入门到精通.png",
"goodBrandId" : 1,
"goodBrandName" : "新华出版社",
"goodCategoryId" : 30,
"goodCategoryName" : "书籍"
}
},
{
"_index" : "good_spu",
"_id" : "4",
"_score" : 1.0,
"_source" : {
"goodSpuId" : 4,
"goodSpuName" : "Hadoop权威指南",
"goodSpuPrice" : 110,
"goodSpuPicture" : "Hadoop权威指南",
"goodBrandId" : 1,
"goodBrandName" : "新华出版社",
"goodCategoryId" : 30,
"goodCategoryName" : "书籍"
}
},
{
"_index" : "good_spu",
"_id" : "5",
"_score" : 1.0,
"_source" : {
"goodSpuId" : 5,
"goodSpuName" : "编译原理",
"goodSpuPrice" : 75,
"goodSpuPicture" : "编译原理",
"goodBrandId" : 1,
"goodBrandName" : "新华出版社",
"goodCategoryId" : 30,
"goodCategoryName" : "书籍"
}
},
{
"_index" : "good_spu",
"_id" : "6",
"_score" : 1.0,
"_source" : {
"goodSpuId" : 6,
"goodSpuName" : "操作原理",
"goodSpuPrice" : 60,
"goodSpuPicture" : "操作原理",
"goodBrandId" : 1,
"goodBrandName" : "新华出版社",
"goodCategoryId" : 30,
"goodCategoryName" : "书籍"
}
}
]
}
}
批量添加文档成功
4、批量删除文档
@SpringBootTest
class ElasticsearchStudyApplicationTests {
private RestClient restClient;
private ElasticsearchClient elasticsearchClient;
private ElasticsearchTransport transport;
@BeforeEach
void ElasticsearchClientBuild(){
// Create the low-level client
restClient = RestClient.builder(
new HttpHost("127.0.0.1", 9200)).build();
// Create the transport with a Jackson mapper
transport = new RestClientTransport(
restClient, new JacksonJsonpMapper());
// And create the API client
elasticsearchClient = new ElasticsearchClient(transport);
}
@Test
void deleteDocumentList() throws IOException {
List<String> list = new ArrayList<>();
list.add("1");
list.add("2");
list.add("3");
list.add("4");
list.add("5");
list.add("6");
List<BulkOperation> bulkOperations = new ArrayList<>();
list.forEach(a ->
bulkOperations.add(BulkOperation.of(b ->
b.delete(c -> c.id(a))
))
);
BulkResponse bulkResponse = elasticsearchClient.bulk(a -> a.index("good_spu").operations(bulkOperations));
bulkResponse.items().forEach(a -> System.out.println("result = " + a.result()));
System.out.println("bulkResponse.errors() = " + bulkResponse.errors());
}
@AfterEach
void ElasticsearchClientDestroy () throws IOException {
transport.close();
restClient.close();
}
}
运行结果：
result = deleted
result = deleted
result = deleted
result = deleted
result = deleted
result = deleted
bulkResponse.errors() = false
使用 Kibana 查看文档
GET good_spu/_search
{
"query": {
"match_all": {}
}
}
{
"took" : 433,
"timed_out" : false,
"_shards" : {
"total" : 1,
"successful" : 1,
"skipped" : 0,
"failed" : 0
},
"hits" : {
"total" : {
"value" : 0,
"relation" : "eq"
},
"max_score" : null,
"hits" : [ ]
}
}
批量删除文档成功
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