Golang : Bson\Json互转

代码

package bson_jsonimport ("encoding/json""errors""fmt""gopkg.in/mgo.v2/bson""os""testing"
)type User struct {Name    string  `json:"name,omitempty" bson:"name,omitempty"`CSDN  string  `json:"csdn,omitempty" bson:"csdn,omitempty"`Quote      string  `json:"quote,omitempty" bson:"quote,omitempty"`
}var user = User{Name: "许大侠",CSDN : "https://blog.csdn.net/halo_hsuh",Quote: "听我一言, 看清远方",
}func toBsonBytes() []byte {/* 结构体序列化成bson格式[]byte */data, err := bson.Marshal(user)if nil != err {fmt.Println("序列化Bson失败")return nil}return data
}func toJsonBytes() []byte {/* 结构体序列化成bson格式[]byte */data, err := json.Marshal(user)if nil != err {fmt.Println("序列化Json失败")return nil}return data
}func ToFile(fileName string, data []byte) error {file, err := os.OpenFile(fileName, os.O_CREATE|os.O_WRONLY, 0666)if nil != err {return err}length, err := file.Write(data)if nil != err {return err}if length < len(data) {return errors.New("Write Error: Length Error.")}return nil
}func Print(u User) {fmt.Println("名字: ", u.Name,"; CSDN: ", u.CSDN,"; 名言: ", u.Quote)
}func TestBson(t *testing.T) {var tempUser Userdata := toBsonBytes()/* bson格式[]byte 反序列化成结构体 */err := bson.Unmarshal(data, &tempUser)if nil != err {fmt.Println("反序列化Bson失败", err)return}Print(tempUser)ToFile("./hello.bson", data) // 将序列化的数据存储进文件
}func TestJson(t *testing.T) {var tempUser Userdata := toJsonBytes()/* bson格式[]byte 反序列化成结构体 */err := json.Unmarshal(data, &tempUser)if nil != err {fmt.Println("反序列化Json失败: ", err)return}Print(tempUser)ToFile("./hello.json", data) // 将序列化的数据存储进文件
}func TestJsonToBson(t *testing.T) {// 获取json []bytedata := toJsonBytes()fmt.Println(data)var tempUser User// 将json转化成bson 结构体err := bson.UnmarshalJSON(data, &tempUser)if nil != err {fmt.Println("Json 转 Bson失败: ", err)}Print(tempUser)// 结构体再转化为jsondata2, err := bson.MarshalJSON(tempUser)if nil != err {fmt.Println("Bson 转 Json失败: ", err)}fmt.Println(data2)
}