报错信息

具体报错：

org.elasticsearch.ElasticsearchStatusException: Elasticsearch exception [type=illegal_argument_exception, reason=unknown setting [index.mappings.properties.category.analyzer] please check that any required plugins are installed, or check the breaking changes documentation for removed settings]

报错原因

在执行下面的代码，进行创建索引时报错。

 我定义MAPPING_TEMPLATE 的代码如下

 private static final String MAPPING_TEMPLATE = """{"mappings": {"properties": {"id": {"type": "keyword","index": false},"title":{"type": "text","analyzer": "ik_max_word"},"user_id":{"type": "keyword","index": false},"category_id":{"type": "keyword","index": false},"category":{"type": "text","analyzer": "ik_max_word"},"createTime":{"type": "date"}}}}""";

 请这样，模版中的红色框中的部分，就是这里引起的报错。 

问题解决

1、修改创建索引调用的方法

如果创建索引的模版和我的模版一样是以mappings 开始的，将创建索引的代码修改为下面的代码

 request.source(MAPPING_TEMPLATE, XContentType.JSON);

2、修改创建索引的模版

如果调用创建模版的方法是

 request.settings(MAPPING_TEMPLATE, XContentType.JSON);

就去掉索引模版中的mappings ，改为以properties开头