golang& amp;尝试制作一个脚本,以便批量上传到Elasticsearch服务器。我的json数据集是这样的......
{
product_displayname: "LG Stylus 2 Plus K535D (16 GB, Brown)",
product_price: "24000.00",
popularity: "0.00",
barcode: "",
exclusive_flag: "0",
product_id: "176982",
product_name: "Stylus 2 Plus K535D (Brown)",
brand_name: "LG",
brand_id: "1",
product_spec : {
display_spec: [{
spec_id: "103",
sdv: "24000",
snv: "24000.0000"
}, {
spec_id: "104",
sdv: "GSM",
snv: "0.0000"
}],
filter_spec: [{
spec_id: "103",
sdv: "24000",
snv: "24000.0000"
}, {
spec_id: "105",
sdv: "Touch Screen",
snv: "0.0000"
}]
}
}
Golang Structure我为上述数据集制作(通过引用google和其他在线信息)就像这样......
type Product struct {
product_displayname string `json:"product_displayname"`
product_price string `json:"product_price"`
popularity string `json:"popularity"`
barcode string `json:"barcode"`
exclusive_flag string `json:"exclusive_flag"`
product_id string `json:"product_id"`
product_name string `json:"product_name"`
brand_name string `json:"brand_name"`
brand_id string `json:"brand_id"`
product_spec
}
type product_spec struct {
display_spec []display_speclist
filter_spec []filter_speclist
}
type display_speclist struct {
spec_id string `json:"spec_id"`
sdv string `json:"sdv"`
snv string `json:"snv"`
}
type filter_speclist struct {
spec_id string `json:"spec_id"`
sdv string `json:"sdv"`
snv string `json:"snv"`
}
但是,每当我尝试在我的批量上传脚本中使用上面的结构和样本数据时,我就会出现以下错误
github.com/crazyheart/elastic-bulk-upload/main.go:70: syntax error: missing operand
github.com/crazyheart/elastic-bulk-upload/main.go:70: unknown escape sequence
github.com/crazyheart/elastic-bulk-upload/main.go:71: syntax error: non-declaration statement outside function body
我觉得我在golang结构中映射嵌套字段display_spec & filter_spec
时犯了一些错误。但无法弄清楚它是什么。
main.go
package main
import (
"fmt"
"golang.org/x/net/context"
"gopkg.in/olivere/elastic.v5"
"strconv"
)
type Product struct {
ProductDisplayname string `json:"product_displayname"`
ProductPrice string `json:"product_price"`
Popularity string `json:"popularity"`
Barcode string `json:"barcode"`
ExclusiveFlag string `json:"exclusive_flag"`
ProductID string `json:"product_id"`
ProductName string `json:"product_name"`
BrandName string `json:"brand_name"`
BrandID string `json:"brand_id"`
ProductSpec struct {
DisplaySpec []struct {
SpecID string `json:"spec_id"`
Sdv string `json:"sdv"`
Snv string `json:"snv"`
} `json:"display_spec"`
FilterSpec []struct {
SpecID string `json:"spec_id"`
Sdv string `json:"sdv"`
Snv string `json:"snv"`
} `json:"filter_spec"`
} `json:"product_spec"`
}
func main() {
// Create a context
ctx := context.Background()
client, err := elastic.NewClient()
if err != nil {
fmt.Println("%v", err)
}
// Bulk upload code
n := 0
for i := 0; i < 1000; i++ {
bulkRequest := client.Bulk()
for j := 0; j < 10000; j++ {
n++
product_data := Product{product_displayname:"LG Stylus 2 Plus K535D (16 GB, Brown)",product_price:"24000.00",popularity:"0.00",barcode:"",exclusive_flag:"0",product_id:"17698276",product_name:"Stylus 2 Plus K535D (Brown)",brand_name:"LG",brand_id:"1",product_spec:{display_spec:[{spec_id:"103",sdv:"24000",snv:"24000.0000"},{spec_id:"104",sdv:"GSM",snv:"0.0000"}],filter_spec:[{spec_id:"103",sdv:"24000",snv:"24000.0000"},{spec_id:"105",sdv:"Touch Screen",snv:"0.0000"}]} }
req := elastic.NewBulkIndexRequest().Index("shopfront").Type("products").Id(strconv.Itoa(n)).Doc(product_data)
bulkRequest = bulkRequest.Add(req)
}
bulkResponse, err := bulkRequest.Do(ctx)
if err != nil {
fmt.Println(err)
}
if bulkResponse != nil {
fmt.Println(bulkResponse)
}
fmt.Println(i)
}
}
答案 0 :(得分:0)
<强>工作流强>
1.-验证您的json(您发布的那个无效)。
2.-建立一个合适的struct
,你可以帮助自己使用这个漂亮的tool。
适合您的情况
structs
似乎没有问题,除非你没有通过大写首字母来导出结构字段(谢谢@ANisus)。
这(缩短)似乎更自然。
type Product struct {
ProductDisplayname string `json:"product_displayname"`
ProductSpec struct {
DisplaySpec []struct {
SpecID string `json:"spec_id"`
Sdv string `json:"sdv"`
Snv string `json:"snv"`
} `json:"display_spec"`
FilterSpec []struct {
SpecID string `json:"spec_id"`
Sdv string `json:"sdv"`
Snv string `json:"snv"`
} `json:"filter_spec"`
} `json:"product_spec"`
}