90 lines
1.6 KiB
Markdown
90 lines
1.6 KiB
Markdown
### golang 实现ip地址查询
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#### 获取
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```
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go get github.com/lionsoul2014/ip2region/binding/golang
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```
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#### 使用
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```golang
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package main
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import (
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"fmt"
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"github.com/lionsoul2014/ip2region/binding/golang/ip2region"
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)
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func main() {
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fmt.Println("err")
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region, err := ip2region.New("ip2region.db")
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defer region.Close()
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if err != nil {
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fmt.Println(err)
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return
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}
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ip, err := region.MemorySearch("127.0.0.1")
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fmt.Println(ip, err)
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ip, err = region.BinarySearch("127.0.0.1")
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fmt.Println(ip, err)
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ip, err = region.BtreeSearch("127.0.0.1")
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fmt.Println(ip, err)
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}
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```
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#### 返回对象
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```golang
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type IpInfo struct {
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CityId int64
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Country string
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Region string
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Province string
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City string
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ISP string
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}
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```
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#### 性能
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|名称|次数|平均耗时|
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|---|---|------|
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BenchmarkBtreeSearch-4| 200000 | 7715 ns/op
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BenchmarkMemorySearch-4| 2000000 | 840 ns/op
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BenchmarkBinarySearch-4| 30000 | 42680 ns/op
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#### 测试程序
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```
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cd /binging/golang
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go run main.go ../../data/ip2region.db
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Or
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go build -o ip2region main.go
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./ip2region ../../data/ip2region.db
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```
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会看到如下界面
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```
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initializing
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+-------------------------------------------------------+
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| ip2region test script |
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| format 'ip type' |
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| type option 'b-tree','binary','memory' default b-tree |
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| Type 'quit' to exit program |
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+-------------------------------------------------------+
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ip2reginon >> 127.0.0.1 memory
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0|未分配或者内网IP|0|0|0|0 960.5µs
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```
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