无条件查询 ​

GET /user/_search
{
    "query": {
        "match_all": {}
    }
}

GET /user/_search
{
    "query": {
        "match_all": {}
    }
}

{
  "took" : 0,
  "timed_out" : false,
  "_shards" : {
    "total" : 1,
    "successful" : 1,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : {
      "value" : 3,
      "relation" : "eq"
    },
    "max_score" : 1.0,
    "hits" : [
      {
        "_index" : "user",
        "_type" : "docs",
        "_id" : "1",
        "_score" : 1.0,
        "_source" : {
          "name" : "张三",
          "sex" : 1,
          "age" : 24,
          "address" : "河北省"
        }
      },
      {
        "_index" : "user",
        "_type" : "docs",
        "_id" : "2",
        "_score" : 1.0,
        "_source" : {
          "name" : "李四",
          "sex" : 1,
          "age" : 25,
          "address" : "河北省"
        }
      },
      {
        "_index" : "user",
        "_type" : "docs",
        "_id" : "3",
        "_score" : 1.0,
        "_source" : {
          "name" : "王五",
          "sex" : 1,
          "age" : 26,
          "address" : "河北省"
        }
      }
    ]
  }
}

{
  "took" : 0,
  "timed_out" : false,
  "_shards" : {
    "total" : 1,
    "successful" : 1,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : {
      "value" : 3,
      "relation" : "eq"
    },
    "max_score" : 1.0,
    "hits" : [
      {
        "_index" : "user",
        "_type" : "docs",
        "_id" : "1",
        "_score" : 1.0,
        "_source" : {
          "name" : "张三",
          "sex" : 1,
          "age" : 24,
          "address" : "河北省"
        }
      },
      {
        "_index" : "user",
        "_type" : "docs",
        "_id" : "2",
        "_score" : 1.0,
        "_source" : {
          "name" : "李四",
          "sex" : 1,
          "age" : 25,
          "address" : "河北省"
        }
      },
      {
        "_index" : "user",
        "_type" : "docs",
        "_id" : "3",
        "_score" : 1.0,
        "_source" : {
          "name" : "王五",
          "sex" : 1,
          "age" : 26,
          "address" : "河北省"
        }
      }
    ]
  }
}