go
最后更新于：2022-04-02 04:01:29
[TOC]
## 示例
```
// go mod init main
// go run example.go
package main
import (
"fmt"
"github.com/neo4j/neo4j-go-driver/neo4j" //Go 1.8
)
func main() {
s, err := runQuery("bolt://:", "", "")
if err != nil {
panic(err)
}
fmt.Println(s)
}
func runQuery(uri, username, password string) ([]string, error) {
configForNeo4j4 := func(conf *neo4j.Config) { conf.Encrypted = false }
driver, err := neo4j.NewDriver(uri, neo4j.BasicAuth(username, password, ""), configForNeo4j4)
if err != nil {
return nil, err
}
defer driver.Close()
sessionConfig := neo4j.SessionConfig{AccessMode: neo4j.AccessModeRead, DatabaseName: "neo4j"}
session, err := driver.NewSession(sessionConfig)
if err != nil {
return nil, err
}
defer session.Close()
results, err := session.ReadTransaction(func(transaction neo4j.Transaction) (interface{}, error) {
result, err := transaction.Run(
`
MATCH (p:Product)-[:PART_OF]->(:Category)-[:PARENT*0..]->
(:Category {categoryName:$category})
RETURN p.productName as product
`, map[string]interface{}{
"category": "Dairy Products",
})
if err != nil {
return nil, err
}
var arr []string
for result.Next() {
value, found := result.Record().Get("product")
if found {
arr = append(arr, value.(string))
}
}
if err = result.Err(); err != nil {
return nil, err
}
return arr, nil
})
if err != nil {
return nil, err
}
return results.([]string), err
}
```
';