ES elasticsearch 異常報錯：Invalid UTF-8 middle byte

ES elasticsearch 異常報錯：Invalid UTF-8 middle byte

報錯

Invalid UTF-8 middle byte 0x74\n at
[Source: org.elasticsearch.transport.netty4.ByteBufStreamInput@714a2900; line: 1, column: 4]

{
	"error": {
		"root_cause": [
			{
				"type": "mapper_parsing_exception",
				"reason": "failed to parse [content]"
			}
		],
		"type": "mapper_parsing_exception",
		"reason": "failed to parse [content]",
		"caused_by": {
		"type": "json_parse_exception",
		"reason": "Invalid UTF-8 middle byte 0xc0\n at [Source: org.elasticsearch.common.bytes.BytesReference$MarkSupportingStreamInputWrapper@3807cda; line: 1, column: 4]"
		}
	},
	"status": 400
}

問題

文件的字符集不是UTF-8的格式

解決

把這個文件用記事本打開,
【另存爲】，
選擇【字符集】爲UTF-8，
保存後，把後綴修改爲需要的後綴。

萬事大吉