我想寫一個自定義分析器,它打破特殊字符上的標記並在索引前將其轉換爲大寫,我應該能夠得到結果,如果我搜索小寫也..自定義分析器打破特殊字符和小寫/大寫的標記
例如,如果我給數據@源 - 它應該用空白替換@任何特殊的字符,它應該用空白替換,並給我像數據源的結果。
以下是我嘗試實施的方法。
PUT sound
{
"settings": {
"analysis": {
"analyzer": {
"my_analyzer": {
"tokenizer": "standard",
"char_filter": [
"my_char_filter"
],
"filter": [
"uppercase"
]
}
},
"char_filter": {
"my_char_filter": {
"type": "pattern_replace",
"pattern": "(\\d+)-(?=\\d)",
"replacement": "$1 "
}
}
}
}
}
POST sound/_analyze
{
"analyzer": "my_analyzer",
"text": "data-source&abc"
}
它拆分令牌嗯,就像 -
{
"tokens": [
{
"token": "DATA",
"start_offset": 0,
"end_offset": 4,
"type": "<ALPHANUM>",
"position": 0
},
{
"token": "SOURCE",
"start_offset": 5,
"end_offset": 11,
"type": "<ALPHANUM>",
"position": 1
},
{
"token": "ABC",
"start_offset": 12,
"end_offset": 15,
"type": "<ALPHANUM>",
"position": 2
}
]
}
但是,如果我在這個以小寫甚至大寫字母搜索,它不工作..喜歡:
GET sound/_search?text="data"
GET sound/_search?text="data"
GET /sound/_search
{
"query": {
"match": {
"text": "data"
}
}
}
它沒有給我的結果,如果我像上面的查詢搜索..
請參考這個答案:http://stackoverflow.com/a/ 39662994/4604579 – Val