elasticsearch简单查询

　　elasticsearch简单查询示例:

{
  "from": "0",　　//分页，从第一页开始
  "size": "10",　　//分页，从开始页取10页
  "version": "true",　　//显示版本信息
  "min_score": "0.15",　　//限制搜索返回结果的最低得分
  "fields": [　　//限制返回哪些字段
    "title",
    "year"
  ],
  "script_fields": {　　//返回一些用脚本生成的字段
    "calculateYear": {
      "script": "_source.year-1800"
    },
    "calculateYearWithParam": {
      "script": "_source.year-paramYear",
      "params": {
        "paramYear": 1800
      }
    }
  },
  "query": {
    "query_string": {
      "query": "title:crIMe"　　//query_string查询是经分析的查询，所以crIMe在查询前被分析为crime
    }
  }
}