RESTful接口

请求URL：

• https://api.xxx.com/Tbsapi/v1/ip2addr?ip=219.140.227.235

请求方式：

• GET

参数：

返回示例

{"code": 1,"data": {"Country": "中国","Province": "湖北省","City": "武汉","ISP": "","Latitude": 30.5801,"Longitude": 114.2734,"TimeZone": "Asia/Shanghai"},"ip": "219.140.227.235"
}

json_rpc tcp 地址: 121.40.238.123(IP地址更快) api.turboes.com 端口: 3344

第三方资源

• GeoIP2 Reader for Go
• GeoLite2 开源数据库

go标准库jsonRPC服务端

Go官方提供了一个RPC库: net/rpc。包rpc提供了通过网络访问一个对象的方法的能力。服务器需要注册对象， 通过对象的类型名暴露这个服务。注册后这个对象的输出方法就可以远程调用，这个库封装了底层传输的细节，包括序列化。服务器可以注册多个不同类型的对象，但是注册相同类型的多个对象的时候回出错。

• 方法的类型是可输出的 (the method's type is exported)
• 方法本身也是可输出的 （the method is exported）
• 方法必须由两个参数，必须是输出类型或者是内建类型 (the method has two arguments, both exported or builtin types)
• 方法的第二个参数是指针类型 (the method's second argument is a pointer)
• 方法返回类型为 error (the method has return type error)

package mainimport ("fmt""github.com/oschwald/geoip2-golang""net""net/rpc""net/rpc/jsonrpc""os""log"
)
//返回值结构体
//需要满足以上要求
type Response struct {Country   stringProvince  stringCity      stringISP       stringLatitude  float64Longitude float64TimeZone  string
}type Ip2addr struct {db *geoip2.Reader
}
//参数结构体
//需要满足以上要求
type Agrs struct {IpString string
}
//json rpc 处理请求
//需要满足以上要求
func (t *Ip2addr) Address(agr *Agrs, res *Response) error {netIp := net.ParseIP(agr.IpString)record, err := t.db.City(netIp)res.City = record.City.Names["zh-CN"]res.Province = record.Subdivisions[0].Names["zh-CN"]res.Country = record.Country.Names["zh-CN"]res.Latitude = record.Location.Latituderes.Longitude = record.Location.Longituderes.TimeZone = record.Location.TimeZonereturn err
}func main() {//加载geoIp数据库db, err := geoip2.Open("./GeoLite2-City.mmdb")if err != nil {log.Fatal(err)}//初始化jsonRPCip2addr := &Ip2addr{db}//注册rpc.Register(ip2addr)//绑定端口address := ":3344"tcpAddr, err := net.ResolveTCPAddr("tcp", address)checkError(err)listener, err := net.ListenTCP("tcp", tcpAddr)checkError(err)log.Println("json rpc is listening",tcpAddr)for {conn, err := listener.Accept()if err != nil {continue}jsonrpc.ServeConn(conn)}}func checkError(err error) {if err != nil {fmt.Println("Fatal error ", err.Error())os.Exit(1)}
}

PHP-jsonRPC客户端

class JsonRPC
{public $conn;function __construct($host, $port){$this->conn = fsockopen($host, $port, $errno, $errstr, 3);if (!$this->conn) {return false;}}public function Call($method, $params){$obj = new stdClass();$obj->code = 0;if (!$this->conn) {$obj->info = "jsonRPC连接失败!请联系qzhou@turboes.com";return $obj;}$err = fwrite($this->conn, json_encode(array('method' => $method,'params' => array($params),'id' => 0,)) . "\n");if ($err === false) {fclose($this->conn);$obj->info = "jsonRPC发送参数失败!请检查自己的rpc-client代码";return $obj;}stream_set_timeout($this->conn, 0, 3000);$line = fgets($this->conn);fclose($this->conn);if ($line === false) {$obj->info = "jsonRPC返回消息为空!请检查自己的rpc-client代码";return $obj;}$temp = json_decode($line);$obj->code = $temp->error == null ? 1 : 0;$obj->data = $temp->result;return $obj;}
}function json_rpc_ip_address($ipString)
{$client = new JsonRPC("127.0.0.1", 3344);$obj = $client->Call("Ip2addr.Address", ['IpString' => $ipString]);return $obj;
}

go语言jsonRPC客户端

package mainimport ("fmt""log""net/rpc/jsonrpc"
)type Response struct {Country   stringProvince  stringCity      stringISP       stringLatitude  float64Longitude float64TimeZone  string
}
type Agrs struct {IpString string
}
func main() {client, err := jsonrpc.Dial("tcp", "121.40.238.123:3344")if err != nil {log.Fatal("dialing:", err)}// Synchronous callvar res Responseerr = client.Call("Ip2addr.Address", Agrs{"219.140.227.235"}, &res)if err != nil {log.Fatal("ip2addr error:", err)}fmt.Println(res)}

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