我尝试使用同义词分析器来处理我已经在工作的弹性搜索类型。这是我的serviceEntity的映射：
{
"serviceentity" : {
"properties":{
"ServiceLangProps" : {
"type" : "nested",
"properties" : {
"NAME" : {"type" : "string", "search_analyzer": "synonym"},
"LONG_TEXT" : {"type" : "string", "search_analyzer": "synonym"},
"DESCRIPTION" : {"type" : "string", "search_analyzer": "synonym"},
"MATERIAL" : {"type" : "string", "search_analyzer": "synonym"},
"LANGUAGE_ID" : {"type" : "string", "include_in_all": false}
}
},
"LinkProps" : {
"type" : "nested",
"properties" : {
"TITLE" : {"type" : "string", "search_analyzer": "synonym"},
"LINK" : {"type" : "string"},
"LANGUAGE_ID" : {"type" : "string", "include_in_all": false}
}
},
"MediaProps" : {
"type" : "nested",
"properties" : {
"TITLE" : {"type" : "string", "search_analyzer": "synonym"},
"FILENAME" : {"type" : "string"},
"LANGUAGE_ID" : {"type" : "string", "include_in_all": false}
}
}
}
}
}
这些是我的设置
{
"analysis": {
"filter": {
"synonym": {
"ignore_case": "true",
"type": "synonym",
"synonyms": [
"lorep, spaceship",
"ipsum, planet"
]
}
},
"analyzer": {
"synonym": {
"filter": [
"lowercase",
"synonym"
],
"tokenizer": "whitespace"
}
}
}
}
当在尝试搜索任何内容时，我收到此错误：
Caused by: org.elasticsearch.index.query.QueryParsingException: [nested] nested object under path [ServiceLangProps] is not of nested type
我不明白为什么。如果我没有在我的设置中添加任何分析仪，一切正常。
我使用java API与elasticsearch实例进行通信。因此，对于多匹配查询，我的代码看起来像这样：
MultiMatchQueryBuilder multiMatchBuilder = QueryBuilders.multiMatchQuery(fulltextSearchString, QUERY_FIELDS).analyzer("synonym");
java API创建的查询字符串如下所示：
{
"query" : {
"bool" : {
"must" : {
"bool" : {
"should" : [ {
"nested" : {
"query" : {
"bool" : {
"must" : [ {
"match" : {
"ServiceLangProps.LANGUAGE_ID" : {
"query" : "DE",
"type" : "boolean"
}
}
}, {
"multi_match" : {
"query" : "lorem",
"fields" : [ "ServiceLangProps.NAME", "ServiceLangProps.DESCRIPTION", "ServiceLangProps.MATERIALKURZTEXT", "ServiceLangProps.DESCRIPTION_RICHTEXT" ],
"analyzer" : "synonym"
}
} ]
}
},
"path" : "ServiceLangProps"
}
}, {
"nested" : {
"query" : {
"bool" : {
"must" : [ {
"match" : {
"LinkProps.LANGUAGE_ID" : {
"query" : "DE",
"type" : "boolean"
}
}
}, {
"match" : {
"LinkProps.TITLE" : {
"query" : "lorem",
"type" : "boolean"
}
}
} ]
}
},
"path" : "LinkProps"
}
}, {
"nested" : {
"query" : {
"bool" : {
"must" : [ {
"match" : {
"MediaProps.LANGUAGE_ID" : {
"query" : "DE",
"type" : "boolean"
}
}
}, {
"match" : {
"MediaProps.TITLE" : {
"query" : "lorem",
"type" : "boolean"
}
}
} ]
}
},
"path" : "MediaProps"
}
} ]
}
},
"filter" : {
"bool" : { }
}
}
}
}
如果我在LinkProps或MediaProps上尝试，我会为相应的嵌套对象获得相同的错误。
编辑：我使用的是弹性搜索版本2.4.6
答案 0 :(得分：0)
检查查询字符串以及了解正在使用的ES版本也会有所帮助。
我看不到synonyms_path以及你使用嵌套类型的事实会导致错误。
你可能已经看过这个，但万一你没有
https://www.elastic.co/guide/en/elasticsearch/reference/5.5/analysis-synonym-tokenfilter.html
答案 1 :(得分：0)
我创建了一个我尝试做的最小例子。
我的映射如下所示：
{
"serviceentity" : {
"properties":{
"LinkProps" : {
"type" : "nested",
"properties" : {
"TITLE" : {"type" : "string", "search_analyzer": "synonym"},
"LINK" : {"type" : "string"},
"LANGUAGE_ID" : {"type" : "string", "include_in_all": false}
}
}
}
}
}
我在JAVA代码中对同义词分析器的设置：
XContentBuilder builder = jsonBuilder()
.startObject()
.startObject("analysis")
.startObject("filter")
.startObject("synonym") // The name of the analyzer
.field("type", "synonym") // The type (derivate)
.field("ignore_case", "true")
.array("synonyms", synonyms) // The synonym list
.endObject()
.endObject()
.startObject("analyzer")
.startObject("synonym")
.field("tokenizer", "whitespace")
.array("filter", "lowercase", "synonym")
.endObject()
.endObject()
.endObject()
.endObject();
ElasticSearch Head Chrome插件吐出的元数据如下所示：
{
"analysis": {
"filter": {
"synonym": {
"ignore_case": "true",
"type": "synonym",
"synonyms": [
"Test, foo",
"Title, bar"
]
}
},
"analyzer": {
"synonym": {
"filter": [
"lowercase",
"synonym"
],
"tokenizer": "whitespace"
}
}
}
}
当我现在使用搜索查询来查找＆＃34;测试＆＃34;我得到的错误与我在第一篇文章中提到的相同。这是查询
{
"query": {
"bool": {
"must": {
"nested": {
"path": "LinkProps",
"query": {
"multi_match": {
"query": "Test",
"fields": [
"LinkProps.TITLE",
"LinkProps.LINK"
],
"analyzer": "synonym"
}
}
}
}
}
}
}
导致此错误
{
"error": {
"root_cause": [
{
"type": "query_parsing_exception",
"reason": "[nested] nested object under path [LinkProps] is not of nested type",
"index": "minimal",
"line": 1,
"col": 44
}
],
"type": "search_phase_execution_exception",
"reason": "all shards failed",
"phase": "query",
"grouped": true,
"failed_shards": [
{
"shard": 0,
"index": "minimal",
"node": "6AhE4RCIQwywl49h0Q2-yw",
"reason": {
"type": "query_parsing_exception",
"reason": "[nested] nested object under path [LinkProps] is not of nested type",
"index": "minimal",
"line": 1,
"col": 44
}
}
]
},
"status": 400
}
当我用
检查分析仪时GET http://localhost:9200/minimal/_analyze?text=foo&analyzer=synonym&pretty=true
我得到了正确答案
{
"tokens": [
{
"token": "foo",
"start_offset": 0,
"end_offset": 3,
"type": "word",
"position": 0
},
{
"token": "test",
"start_offset": 0,
"end_offset": 3,
"type": "SYNONYM",
"position": 0
}
]
}
所以分析仪似乎设置正确。我搞砸了映射吗？我想这个问题不是因为我有嵌套对象或是吗？
答案 2 :(得分：0)
我刚试过这个
{
"query": {
"bool": {
"must": {
"query": {
"multi_match": {
"query": "foo",
"fields": [
"LinkProps.TITLE",
"LinkProps.LINK"
],
"analyzer": "synonym"
}
}
}
}
}
}
如您所见，我删除了“嵌套”包装器
"nested": {
"path": "LinkProps",
...
}
现在至少在一些结果中起作用（不确定，如果这些最终会得到正确的结果）。我正在尝试将其应用于原始项目，如果这也有用，请随时发布。