Golang之json序列化（struct，int，map，slice）
package mainimport (
"encoding/json"
"fmt"
)
//把结构体都改小写
type User struct {
UserName string `json:"user_name"` //json的tag标记
Nickname string `json:"nickname"`
Age int
Birthday string
Sex string
Email string
Phone string
}
func testStruct() {
user1 := &User{
UserName: "超哥",
Nickname: "大头哥",
Age: 18,
Birthday: "2008/8/8",
Sex: "男",
Email: "mahuateng@qq.com",
Phone: "110",
}
//开始json序列化
data, err := json.Marshal(user1)
if err != nil {
fmt.Printf("json.marshal failed,err:", err)
return
}
fmt.Printf("%s\n", string(data))
}
func testInt() {
var a = 18
//开始json序列化
data, err := json.Marshal(a)
if err != nil {
fmt.Printf("json.marshal failed,err:", err)
return
}
fmt.Printf("%s\n", string(data))
}
func testMap() {
var m mapinterface{} //声明map
m = make(mapinterface{}) //必须初始化map分配内存
m["username"] = "user1"
m["age"] = 18
m["sex"] = "man"
fmt.Println(m)
data, err := json.Marshal(m)
if err != nil {
fmt.Printf("json.marshal failed,err:", err)
return
}
fmt.Printf("%s\n", string(data))
}
func testSlice() {
//定义一个slice，元素是map
var m mapinterface{}
var s []mapinterface{}
m = make(mapinterface{})
m["username"] = "user1"
m["age"] = 18
m["sex"] = "man"
s = append(s, m)
m = make(mapinterface{})
m["username"]="user2"
m["age"]=188
m["sex"]="male"
s=append(s,m)
data, err := json.Marshal(s)
if err != nil {
fmt.Printf("json.marshal failed,err:", err)
return
}
fmt.Printf("%s\n", string(data))
}
func main() {
testStruct() //结构体的序列化
testInt()//序列化数值
testMap()//序列化map
testSlice()//序列化切片
}
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