elasticsearch：使用映射创建索引答案

【问题标题】：elasticsearch: create index with mappingselasticsearch：使用映射创建索引
【发布时间】：2016-01-13 01:21:38
【问题描述】：

当我第一次创建索引然后通过映射添加类型时，这一切都有效。但是当我尝试在一次调用中创建一个带有映射的索引时，我得到了错误：

"type": "mapper_parsing_exception",
"reason": "Failed to parse mapping [my_type]: Expected map for property [fields] on field [type] but got a class java.lang.String",

如何解决？我的代码如下：

创建：

PUT /my_index
{
    "settings": {
        "number_of_shards": 1,  
        "analysis": {
            "filter": {
                "my_shingle_filter": {
                    "type":             "shingle",
                    "min_shingle_size": 2, 
                    "max_shingle_size": 3, 
                    "output_unigrams":  false,   
                    "filler_token": ""
                },
                "kill_fillers": {
                    "type": "pattern_replace",
                    "pattern": ".*_.*",
                    "replace": ""
                }
            },
            "analyzer": {
                "my_shingle_analyzer": {
                    "type":             "custom",
                    "tokenizer":        "standard",
                    "filter": [
                        "standard"
                        ,"lowercase"
                        ,"stop"
                        ,"porter_stem"
                        ,"my_shingle_filter" 
                        ,"trim"
                    ]
                }}}}}

添加类型：

PUT /my_index/_mapping/my_type
{
    "my_type": {
        "properties": {
            "title": {
                "type": "string",
                "fields": {
                    "shingles": {
                        "type":     "string",
                        "analyzer": "my_shingle_analyzer"
                    }}}}}}

与映射一起创建索引：

PUT /my_index
{
  "settings": {
    "number_of_shards": 1,
    "analysis": {
      "filter": {
        "my_shingle_filter": {
          "type": "shingle",
          "min_shingle_size": 2,
          "max_shingle_size": 2,
          "output_unigrams": false
        }
      },
      "analyzer": {
        "my_shingle_analyzer": {
          "type": "custom",
          "tokenizer": "standard",
          "filter": [
            "lowercase",
            "my_shingle_filter"
          ]
        }}}
  },
  "mappings": {
    "my_type": {
      "properties": {
        "type": "string",
        "fields": {
          "shingles": {
            "type": "string",
            "analyzer": "my_shingle_analyzer"
          }}}}}}

【问题讨论】：

标签： elasticsearch

【解决方案1】：

您只是在第二个查询中缺少 title 字段：

PUT /my_index
{
  "settings": {
    "number_of_shards": 1,
    "analysis": {
      "filter": {
        "my_shingle_filter": {
          "type": "shingle",
          "min_shingle_size": 2,
          "max_shingle_size": 2,
          "output_unigrams": false
        }
      },
      "analyzer": {
        "my_shingle_analyzer": {
          "type": "custom",
          "tokenizer": "standard",
          "filter": [
            "lowercase",
            "my_shingle_filter"
          ]
        }}}
  },
  "mappings": {
    "my_type": {
      "properties": {
       "title": {                    <--- this line is missing
        "type": "string",
        "fields": {
          "shingles": {
            "type": "string",
            "analyzer": "my_shingle_analyzer"
          }}}}}}}                    <--- + one closing brace

【讨论】：

总是乐于提供帮助！