elasticsearch的基本操作3

#[RequestMapping(path:'safeDeleteDoc',methods:'get')]
public function safeDeleteDoc(ElasticsearchService $es)
{
//删除前先判断是否存在（推荐）
$client = $es->getClient();

$exists = $client->exists([
'index' => 'novel',
'id' => '1'
]);

if (!$exists) {
return ['message' => '文档不存在'];
}

return $client->delete([
'index' => 'novel',
'id' => '1'
]);
}
#[RequestMapping(path:'deleteByQuery',methods:'get')]
public function deleteByQuery(ElasticsearchService $es)
{
//根据条件删除（_delete_by_query）
//删除 name 包含“测试”的文档
$client = $es->getClient();

return $client->deleteByQuery([
'index' => 'novel',
'conflicts' => 'proceed',//生产环境建议（非常重要）条件删除一定要加 conflicts=proceed
'body' => [
'query' => [
'match' => [
'name' => '测试'
]
]
]
]);
//删除 author = 某个作者
$client->deleteByQuery([
'index' => 'novel',
'body' => [
'query' => [
'term' => [
'author' => '猫腻'
]
]
]
]);
}
#[RequestMapping(path:'bulkDelete',methods:'get')]
public function bulkDelete(ElasticsearchService $es)
{
//批量删除（多条 ID）
//大量删除用 _delete_by_query，不要用循环
/*不要用foreach ($ids as $id) {
$client->delete([...]);
}
要用
$client->bulk([...]);
// 或
$client->deleteByQuery([...]);
*/

$client = $es->getClient();

$ids = ['10', '11', '12'];

$params = ['body' => []];

foreach ($ids as $id) {
$params['body'][] = [
'delete' => [
'_index' => 'novel',
'_id' => $id
]
];
}
//删除整个索引（⚠️ 不是删除文档）
$client->indices()->delete([
'index' => 'novel'
]);

return $client->bulk($params);

}

test2026-08-12 21:21

验证是否写入成功

$client->get([
'index' => 'novel',
'id' => '1'
]);
或搜索

$client->search([
'index' => 'novel',
'body' => [
'query' => [
'match' => [
'name' => '斗破'
]
]
]
]);

test2026-08-12 21:22

#[RequestMapping(path:'searchquery',methods:'get')]
public function searchquery(ElasticsearchService $es)
{
//搜索
//支持 ik 分词
//name 是 text + ik_max_word
$client = $es->getClient();
/*$rs = $client->search([
'index' => 'novel',
'body' => [
'query' => [
'match' => [
'name' => '悍刀行'
]
]
]
]);*/
//精确查询（keyword，不分词）author 是 keyword
/*$rs = $client->search([
'index' => 'novel',
'body' => [
'query' => [
'term' => [
'author' => '萧鼎'
]
]
]
]);
*/
//多条件查询（bool 查询，重点）
//作者 + 名称 + 热度
/*$rs = $client->search([
'index' => 'novel',
'body' => [
'query' => [
'bool' => [
'must' => [
['term' => ['author' => '萧鼎']],
['match' => ['name' => '诛仙']]
],
'filter' => [
['range' => ['count' => ['gte' => 800000]]]
]
]
]
]
]);*/
//分页 + 排序（接口必用）
/*$rs = $client->search([
'index' => 'novel',
'from' => 0, // 第几页
'size' => 10, // 每页条数
'body' => [
'sort' => [
['count' => ['order' => 'desc']]
],
'query' => [
'match' => [
'name' => '诛仙'
]
]
]
]);*/
//高亮搜索（前端最爱）
/*$rs = $client->search([
'index' => 'novel',
'body' => [
'query' => [
'match' => [
'name' => '诛仙'
]
],
'highlight' => [
'fields' => [
'name' => new stdClass()
],
'pre_tags' => '<em>',
'post_tags' => '</em>'
]
]
]);
return $rs['hits']['hits'];
*/
//聚合查询（统计）
//统计每个作者的小说数量
$rs = $client->search([
'index' => 'novel',
'size' => 0,
'body' => [
'aggs' => [
'author_count' => [
'terms' => [
'field' => 'author'
]
]
]
]
]);
return $rs;
}
#[RequestMapping(path:'search',methods:'get')]
public function search(ElasticsearchService $es,RequestInterface $request,ResponseInterface $response)
{
//一个完整搜索接口（推荐你直接用）
$keyword = $request->input('keyword', '');
$page = (int)$request->input('page', 1);
$size = (int)$request->input('size', 10);

$from = ($page - 1) * $size;

$client = $es->getClient();

return $client->search([
'index' => 'novel',
'from' => $from,
'size' => $size,
'body' => [
'query' => [
'bool' => [
'must' => [
'multi_match' => [
'query' => $keyword,
'fields' => ['name^3', 'descr']
]
]
]
],
'highlight' => [
'fields' => [
'name' => new stdClass(),
'descr' => new stdClass()
]
]
]
]);
}

test2026-08-12 21:47

#term查询
POST /novel/_search
{
"from": 0,
"size": 5,
"query": {
"term": {
"name": "鬼吹灯"
}
}

}

#terms查询
POST /novel/_search
{
"query": {
"terms": {
"name": ["鬼吹灯","斗破苍穹"]
}
}
}

test2026-08-12 22:16

#match_all查询
POST /novel/_search
{
"query": {
"match_all": {}
}
}

#match查询
POST /novel/_search
{
"query": {
"match": {
"name": "鬼吹灯"
}
}
}

#布尔match查询
POST /novel/_search
{
"query": {
"match": {
"name": {
"query": "鬼吹灯雪中",
"operator": "or"
}
}
}
}

#multi_match查询
POST /novel/_search
{
"query": {
"multi_match": {
"query": "过吹灯",
"fields": ["name","author"]
}
}
}

test2026-08-12 22:32

elasticsearch的基本操作3

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