POST /forum/article/_bulk
{"index":{"_id":1}}
{ "articleID" : "XHDK-A-1293-#fJ3", "userID" : 1, "hidden": false, "postDate": "2017-01-01" }
{ "index": { "_id": 2 }}
{ "articleID" : "KDKE-B-9947-#kL5", "userID" : 1, "hidden": false, "postDate": "2017-01-02" }
{ "index": { "_id": 3 }}
{ "articleID" : "JODL-X-1937-#pV7", "userID" : 2, "hidden": false, "postDate": "2017-01-01" }
{ "index": { "_id": 4 }}
{ "articleID" : "QQPX-R-3956-#aD8", "userID" : 2, "hidden": true, "postDate": "2017-01-02" }


GET /forum/_mapping/article


GET /forum/article/_search
{
  "query": {
    "constant_score": {
      "filter": {
        "term": {
          "userID": "2"
        }
      }
    }
  }
}


GET /forum/article/_search
{
  "query": {
    "constant_score": {
      "filter": {
        "term": {
          "hidden": true
        }
      }
    }
  }
}

GET /forum/article/_search
{
  "query": {
    "constant_score": {
      "filter": {
        "term": {
          "articleID.keyword": "QQPX-R-3956-#aD8"
        }
      } 
    }
  }
}
 
GET /forum/article/_mapping
 

DELETE /forum

PUT /forum
{
  "mappings": {
    "article":{
      "properties": {
        "articleID":{
          "type": "keyword"
        }
      }
    }
  }
}


PUT /forum
{
  "mappings": {
    "article":{
      "properties": {
        "articleID":{
          "type": "keyword"
        }
      }
    }
  }
}

POST /forum/article/_bulk
{ "index": { "_id": 1 }}
{ "articleID" : "XHDK-A-1293-#fJ3", "userID" : 1, "hidden": false, "postDate": "2017-01-01" }
{ "index": { "_id": 2 }}
{ "articleID" : "KDKE-B-9947-#kL5", "userID" : 1, "hidden": false, "postDate": "2017-01-02" }
{ "index": { "_id": 3 }}
{ "articleID" : "JODL-X-1937-#pV7", "userID" : 2, "hidden": false, "postDate": "2017-01-01" }
{ "index": { "_id": 4 }}
{ "articleID" : "QQPX-R-3956-#aD8", "userID" : 2, "hidden": true, "postDate": "2017-01-02" }


GET /forum/article/_search
{
  "query": {
    "constant_score": {
      "filter": {
        "term": {
          "articleID": "JODL-X-1937-#pV7"
        }
      }
  
    }
  }
}

term是搜字段完全匹配，在建立索引时，如果类型是text时，会被分词建立倒排索引，如果不想让字段倒排索引，可以设置其类型为keyword。