我是elk的新手，我想将json文件导入elasticsearch。这是我的文件：

{
"news":{
  "1":{
     "_score":1.0,
     "_index":"newsvit",
     "_source":{
        "content":" \u0641\u0647\u06cc\u0645\u0647 \u062d\u0633\u0646\u200c\u0645\u06cc\u0631\u06cc: \u0627\u06af\u0631\u0686\u0647 \u062f\u0631 \u0647\u06cc\u0627\u0647\u0648\u06cc \u0627\u0646\u062a\u062e\u0627\u0628\u0627\u062a \u0631\u06cc\u0627\u0633\u062a \u062c\u0645\u0647\u0648\u0631\u06cc\u060c \u0645\u0648\u0636\u0648\u0639\u06cc \u0645\u0627\u0646\u0646\u062f \u0645\u0639\u0631\u0641\u06cc \u06a9\u0627\u0646\u062f\u06cc\u062f\u0627\u0647\u0627\u06cc \u0634\u0648\u0631\u0627\u06cc \u0634\u0647\u0631 \u062f\u0631 \u062d\u0627\u0634\u06cc\u0647 \u0642\u0631\u0627\u0631 \u06af\u0631\u0641\u062a\u0647\u060c \u0627\u0645\u0627 \u0627\u0645\u0633\u0627\u0644 \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u067e\u0646\u062c\u0645\u06cc\u0646 \u062f\u0648\u0631\u0647 \u0627\u0646\u062a\u062e\u0627\u0628 \u0627\u0639\u0636\u0627\u06cc \u0634\u0648\u0631\u0627\u06cc \u0634\u0647\u0631\u060c \u0627\u06cc\u0646 \u0631\u0648\u06cc\u062f\u0627\u062f \u0628\u0647 \u0646\u0633\u0628\u062a \u062f\u0648\u0631\u0647\u200c\u0647\u0627\u06cc \u0642\u0628\u0644\u060c \u0628\u06cc\u0634\u062a\u0631 \u0645\u0648\u0631\u062f \u062a\u0648\u062c\u0647 \u0648\u0627\u0642\u0639 \u0634\u062f\u0647. \u0627\u06cc\u0646 \u0627\u0642\u0628\u0627\u0644\u060c \u0686\u0647 \u0627\u0632 \u0633\u0648\u06cc \u0686\u0647\u0631\u0647\u200c\u0647\u0627\u06cc \u0645\u0637\u0631\u062d \u0628\u0631\u0627\u06cc \u062b\u0628\u062a \u0646\u0627\u0645 \u0648 \u0686\u0647 \u0627\u0632 \u0633\u0648\u06cc \u0645\u0631\u062f\u0645 \u0628\u0631\u0627\u06cc \u0645\u0634\u0627\u0631\u06a9\u062a \u062f\u0631 \u0627\u06cc\u0646 \u0631\u0648\u06cc\u062f\u0627\u062f\u060c \u0639\u0644\u062a\u200c\u0647\u0627\u06cc \u06af\u0648\u0646\u0627\u06af\u0648\u0646\u06cc \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u062f \u06a9\u0647 \u062a\u0648\u062c\u0647 \u0628\u0647 \u0622\u0646\u060c \u0645\u06cc\u200c\u062a\u0648\u0627\u0646\u062f \u0631\u0627\u0647\u06af\u0634\u0627\u06cc \u0627\u0639\u0636\u0627\u06cc \u0631\u06",
        "lead":"\u062c\u0627\u0645\u0639\u0647 > \u0634\u0647\u0631\u06cc - \u0645\u06cc\u0632\u06af\u0631\u062f\u06cc \u062f\u0631\u0628\u0627\u0631\u0647 \u0639\u0645\u0644\u06a9\u0631\u062f \u062f\u0648\u0631\u0647\u200c\u0647\u0627\u06cc \u06af\u0630\u0634\u062a\u0647 \u0634\u0648\u0631\u0627\u06cc \u0634\u0647\u0631\u060c \u0622\u0646\u0686\u0647 \u0627\u0639\u0636\u0627\u06cc \u062c\u062f\u06cc\u062f \u0628\u0627\u06cc\u062f \u0645\u062f \u0646\u0638\u0631 \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u0646\u062f \u0648 \u0647\u0645\u0686\u0646\u06cc\u0646 \u0645\u0627\u0647\u06cc\u062a \u0633\u06cc\u0627\u0633\u06cc \u0628\u0648\u062f\u0646 \u06cc\u0627 \u0646\u0628\u0648\u062f\u0646 \u0634\u0648\u0631\u0627\u06cc \u0634\u0647\u0631.",
        "agency":"13",
        "date_created":1494518193,
        "url":"http://www.khabaronline.ir/(X(1)S(bud4wg3ebzbxv51mj45iwjtp))/detail/663749/society/urban",
        "image":"uploads/2017/05/11/1589793661.jpg",
        "category":"15"
     },
     "_type":"news",
     "_id":"2981643"
  },
  "2": {
...

根据我所学的知识，首先，我尝试在kibana的开发工具中为它创建一个Map系统。我想能够执行查询和搜索这个文件的基础上的字段 _source ，如类别、id等。这是我的Map：

PUT /main-news-test-data
{
  "mappings": {
    "properties": {
      "_score": {"type":"integer"},
      "_index": {"type":"keyword"},
      "_type":{"type":"keyword"},
      "_id":{"type":"keyword"} 
    },
    "_source":{
      "properties": {
       "content":{"type":"text"},
        "title":{"type":"text"},
        "lead":{"type":"text"},
        "agency":{"type":"keyword"},
        "date_created":{"type":"date"},
        "url":{"type":"keyword"},
        "image":{"type":"keyword"},
        "category":{"type":"keyword"}
       }
      }
  }
}

HEAD main-news-test-data

GET /main-news-test-data/_search?q=*

但是，当我在devtools中运行时，我收到以下错误：

{
  "error" : {
    "root_cause" : [
      {
        "type" : "mapper_parsing_exception",
        "reason" : "Mapping definition for [_source] has unsupported parameters:  [properties : {image={type=keyword}, agency={type=keyword}, date_created={type=date}, title={type=text}, category={type=keyword}, content={type=text}, lead={type=text}, url={type=keyword}}]"
      }
    ],
    "type" : "mapper_parsing_exception",
    "reason" : "Failed to parse mapping [_doc]: Mapping definition for [_source] has unsupported parameters:  [properties : {image={type=keyword}, agency={type=keyword}, date_created={type=date}, title={type=text}, category={type=keyword}, content={type=text}, lead={type=text}, url={type=keyword}}]",
    "caused_by" : {
      "type" : "mapper_parsing_exception",
      "reason" : "Mapping definition for [_source] has unsupported parameters:  [properties : {image={type=keyword}, agency={type=keyword}, date_created={type=date}, title={type=text}, category={type=keyword}, content={type=text}, lead={type=text}, url={type=keyword}}]"
    }
  },
  "status" : 400
}

之后，我还尝试使用以下powershell命令将我的文件索引到elasticsearch中：

Invoke-RestMethod "http://localhost:9200/main-news-test-data/doc/_bulk?pretty" -Method Post -ContentType 'application/x-ndjson' -InFile "test.json"

但我还是从powershell得到了一个错误：

Invoke-RestMethod : {
  "error" : {
    "root_cause" : [
      {
        "type" : "json_e_o_f_exception",
        "reason" : "Unexpected end-of-input: expected close marker for Object (start marker at [Source:
(org.elasticsearch.common.bytes.AbstractBytesReference$MarkSupportingStreamInputWrapper); line: 1, column: 1])\n at
[Source: (org.elasticsearch.common.bytes.AbstractBytesReference$MarkSupportingStreamInputWrapper); line: 2, column: 1]"
      }
    ],
    "type" : "json_e_o_f_exception",
    "reason" : "Unexpected end-of-input: expected close marker for Object (start marker at [Source:
(org.elasticsearch.common.bytes.AbstractBytesReference$MarkSupportingStreamInputWrapper); line: 1, column: 1])\n at
[Source: (org.elasticsearch.common.bytes.AbstractBytesReference$MarkSupportingStreamInputWrapper); line: 2, column: 1]"
  },
  "status" : 400
}

那我该怎么办？如何将json文件导入可按字段查询的elasticsearch？