1、json解析到结构体
示例：
package mainimport(
"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
", tmp)}执行结果：
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
package mainimport(
"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
", tmp2)}
执行结果:
tmp2 = {Subjects:[Go C++ Python Test]}