之前一直我们讲的是添加文档和查看文档，下面我们看下怎么修改文档，

第一种方式PUT  覆盖原来的文档

修改文档（覆盖原来的）：

PUT /lib/user/1
{
  "first_name":"Jane",
  "last_name":"Smith",
  "age":32,
  "about":"I like to collect rock albums",
  "interests":["music"]
}

返回结果

{
  "_index" : "lib",
  "_type" : "user",
  "_id" : "1",
  "_version" : 2,
  "result" : "updated",
  "_shards" : {
    "total" : 1,
    "successful" : 1,
    "failed" : 0
  },
  "_seq_no" : 3,
  "_primary_term" : 1
}

将年龄修改为36

第二种方式：POST  

获取一下GET  年龄变成了48  版本号也增到了4

GET /lib/user/1

{
  "_index" : "lib",
  "_type" : "user",
  "_id" : "1",
  "_version" : 4,
  "_seq_no" : 5,
  "_primary_term" : 1,
  "found" : true,
  "_source" : {
    "first_name" : "Jane",
    "last_name" : "Smith",
    "age" : 48,
    "about" : "I like to collect rock albums",
    "interests" : [
      "music"
    ]
  }
}

删除文档：

#删除文档  就相当简单
DELETE /lib/user/1

删除成功返回的信息

{
  "_index" : "lib",
  "_type" : "user",
  "_id" : "1",
  "_version" : 5,
  "result" : "deleted",
  "_shards" : {
    "total" : 1,
    "successful" : 1,
    "failed" : 0
  },
  "_seq_no" : 6,
  "_primary_term" : 1
}

我们在查看下是不是还有没有这个文档

GET /lib/user/1

found为false，没有找到说明我们已经删除成功

{
  "_index" : "lib",
  "_type" : "user",
  "_id" : "1",
  "found" : false
}

上面是删除文档删除索引呢？

PUT lib2

GET /lib2/_settings


#返回索引信息
{
  "lib2" : {
    "settings" : {
      "index" : {
        "creation_date" : "1583416309156",
        "number_of_shards" : "5",
        "number_of_replicas" : "1",
        "uuid" : "9Ta0EnpkQwya8BVgnzLxCQ",
        "version" : {
          "created" : "6080699"
        },
        "provided_name" : "lib2"
      }
    }
  }
}

删除索引就更简单了

GET /lib2/_settings

返回信息  index没有找到，说明已经删除了

{
  "error" : {
    "root_cause" : [
      {
        "type" : "index_not_found_exception",
        "reason" : "no such index",
        "resource.type" : "index_or_alias",
        "resource.id" : "lib2",
        "index_uuid" : "_na_",
        "index" : "lib2"
      }
    ],
    "type" : "index_not_found_exception",
    "reason" : "no such index",
    "resource.type" : "index_or_alias",
    "resource.id" : "lib2",
    "index_uuid" : "_na_",
    "index" : "lib2"
  },
  "status" : 404
}