在 Solr 中转义特殊字符

Question

在运行 http://localhost:8983/solr/amazon_products/select?q=*:*&fq=Category:"Toys \& Games " 之后转义特殊字符 '&' 时出现以下错误 Solr 中的这个查询

{
"responseHeader": {
    "zkConnected": true,
    "status": 400,
    "QTime": 0,
    "params": {
        "q": "*:*",
        "Games \"": "",
        "fq": "Category:\"Toys \",
        "rows": "70"
    }
},
"error": {
    "metadata": [
        "error-class", "org.apache.solr.common.SolrException",
        "root-error-class", "org.apache.solr.parser.TokenMgrError"
    ],
    "msg": "org.apache.solr.search.SyntaxError: Cannot parse 'Category:\"Toys \': Lexical error at line 1, column 17.  Encountered: <EOF> after : \"\\"Toys \\\"",
    "code": 400
}}

类别字段包含如下值

"Category":["Toys & Games "," Learning & Education "," Science Kits & Toys"]
"Category":["Home & Kitchen "," Home Décor "," Window Treatments "," Window Stickers & Films ", " Window Films"],

并且类别字段的类型为 string 且 multivalued=true

      {
    "name":"Category",
    "type":"string",
    "multiValued":true,
    "stored":true},

如何正确搜索类别：“玩具和游戏”

注意：我尝试了 http://localhost:8983/solr/amazon_products/select?q=*:*&fq=Category:Toys* AND *"Games "&rows=70 这个查询并且它工作正常，但是如果我非常想搜索字符串 'Toys & Games ' 如何通过正确转义特殊字符 '&'

Answer 1

您需要对某些字符进行编码。例如下面的命令：

$ curl 'http://localhost:8983/solr/puldata/select?fq=title_t%3A%22Woody%20Herman%20%26%20His%20Orchestra%22&q=*&start=0'

将查询 fq=title_t:"Woody Herman & His Orchestra"。注意 :、"、空格和 & 字符是如何编码的。

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