1、json解析到结构体
示例：
package main
import (
"encoding/json"
"fmt"
)type IT struct {
Company string `json:"company"`
Subjects []string `json:"subjects"` //二次编码
IsOk bool `json:"isok"`
Price float64 `json:"price"`
}func main() {
jsonBuf := `
{
"company": "itcast",
"subjects": [
"Go",
"C++",
"Python",
"Test"
],
"isok": true,
"price": 666.666
}` var tmp IT //定义一个结构体变量
err := json.Unmarshal([]byte(jsonBuf), &tmp) //第二个参数要地址传递
if err != nil {
fmt.Println("err = ", err)
return
}
//fmt.Println("tmp = ", tmp)
fmt.Printf("tmp = %+v\n", tmp)
} |
执行结果：
|
1
|
tmp = {Company:itcast Subjects:[Go C++ Python Test] IsOk:true Price:666.666} |
示例2： 定义结构体，解析你想生成的字段
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|
package main
import (
"encoding/json"
"fmt"
)type IT struct {
Company string `json:"company"`
Subjects []string `json:"subjects"` //二次编码
IsOk bool `json:"isok"`
Price float64 `json:"price"`
}func main() {
jsonBuf := `
{
"company": "itcast",
"subjects": [
"Go",
"C++",
"Python",
"Test"
],
"isok": true,
"price": 666.666
}` var tmp IT //定义一个结构体变量
err := json.Unmarshal([]byte(jsonBuf), &tmp) //第二个参数要地址传递
if err != nil {
fmt.Println("err = ", err)
return
}
type IT2 struct {
Subjects []string `json:"subjects"` //二次编码
}
var tmp2 IT2
err = json.Unmarshal([]byte(jsonBuf), &tmp2) //第二个参数要地址传递
if err != nil {
fmt.Println("err = ", err)
return
}
fmt.Printf("tmp2 = %+v\n", tmp2)
} |
执行结果：
|
1
|
tmp2 = {Subjects:[Go C++ Python Test]} |