在我問的最后一個問題中，我想洗掉搜索結果中的 HTML 標記，之后我認為我可以使用常見查詢突出顯示結果，但是在突出顯示欄位中，我得到了您使用腳本洗掉的其他 html 內容。您能幫我突出顯示我保存在資料庫中的沒有 html 標記的結果嗎？
我的映射和設定：
{
"settings": {
"analysis": {
"filter": {
"my_pattern_replace_filter": {
"type": "pattern_replace",
"pattern": "\n",
"replacement": ""
}
},
"analyzer": {
"my_analyzer": {
"tokenizer": "standard",
"filter": [
"lowercase"
],
"char_filter": [
"html_strip"
]
},
"parsed_analyzer": {
"type": "custom",
"tokenizer": "keyword",
"char_filter": [
"html_strip"
],
"filter": [
"my_pattern_replace_filter"
]
}
}
}
},
"mappings": {
"properties": {
"html": {
"type": "text",
"analyzer": "my_analyzer",
"fields": {
"raw": {
"type": "text",
"fielddata": true,
"analyzer": "parsed_analyzer"
}
}
}
}
}
}
搜索查詢：
POST idx_test/_search
{
"script_fields": {
"raw": {
"script": "doc['html.raw']"
}
},
"query": {
"match": {
"html": "more"
}
},"highlight": {
"fields": {
"*":{ "pre_tags" : ["<strong>"], "post_tags" : ["</strong>"] }
}
}
}
結果：
"hits": [
{
"_index": "idx_test2",
"_type": "_doc",
"_id": "GijDsYMBjgX3UBaguGxc",
"_score": 0.2876821,
"fields": {
"raw": [
"Test More test"
]
},
"highlight": {
"html": [
"<html><body><h1 style=\"font-family: Arial\">Test</h1> <span><strong>More</strong> test</span></body></html>"
]
}
}
]
我想得到的結果：
"hits": [
{
"_index": "idx_test2",
"_type": "_doc",
"_id": "GijDsYMBjgX3UBaguGxc",
"_score": 0.2876821,
"fields": {
"raw": [
"Test <strong>More</strong> test"
]
}
]
uj5u.com熱心網友回復：
我想到了另一種解決方案。您可以索引兩個欄位，即原始 html 和僅包含文本的 html_extract。您必須使用處理器來索引來自訊息的文本，并且highligths 會起作用。
映射
PUT idx_html_strip
{
"mappings": {
"properties": {
"html": {
"type": "text"
},
"html_extract": {
"type": "text"
}
}
}
}
處理器管道
PUT /_ingest/pipeline/pipe_html_strip
{
"description": "_description",
"processors": [
{
"html_strip": {
"field": "html",
"target_field": "html_extract"
}
},
{
"script": {
"lang": "painless",
"source": "ctx['html_raw'] = ctx['html_raw'].replace('\n',' ').trim()"
}
}
]
}
索引資料
注意使用 ?pipeline=pipe_html_strip
POST idx_html_strip/_doc?pipeline=pipe_html_strip
{
"html": """<html><body><h1 style=\"font-family: Arial\">Test</h1> <span><strong>More</strong> test</span></body></html>"""
}
詢問
GET idx_html_strip/_search?filter_path=hits.hits._source,hits.hits.highlight
{
"query": {
"multi_match": {
"query": "More",
"fields": ["html", "html_extract"]
}
},"highlight": {
"fields": {
"*":{ "pre_tags" : ["<strong>"], "post_tags" : ["</strong>"] }
}
}
}
結果
{
"hits": {
"hits": [
{
"_source": {
"html": """<html><body><h1 style=\"font-family: Arial\">Test</h1> <span><strong>More</strong> test</span></body></html>""",
"html_extract": "Test More test"
},
"highlight": {
"html": [
"""<html><body><h1 style=\"font-family: Arial\">Test</h1> <span><strong><strong>More</strong></strong> test</span></body>"""
],
"html_extract": [
"Test <strong>More</strong> test"
]
}
}
]
}
}
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標籤：弹性搜索