Go 的 JSON 开发包 Jason
Jason 是一个 Go 语言用来处理 JSON 文档的开发包。Jason 的强项是解析 JSON 而不是生成 JSON。
示例代码：
<pre class="brush:cpp ;toolbar: true; auto-links: false;">root, err := jason.NewFromReader(res.Body)
root.Get("name").String()
root.Get("age").Number()
root.Get("verified").Boolean()
root.Get("education").Object()
root.Get("friends").Array()
//读取嵌套内容
root.Get("person", "name").String()
root.Get("person", "age").Number()
root.Get("person", "verified").Boolean()
root.Get("person", "education").Object()
root.Get("person", "friends").Array()
//判断数值是否存在
root.Has("person", "name")
root.Get("person", "name").Exists()
//数值校验
root.Get("name").IsString()
root.Get("age").IsNumber()
root.Get("verified").IsBoolean()
root.Get("education").IsObject()
root.Get("friends").IsArray()
root.Get("friends").IsNull()
//循环
for _, friend := range person.Get("friends").Array() {
name := friend.Get("name").String()
age := friend.Get("age").Number()
}</pre>
完整例子：
<pre class="brush:cpp ;toolbar: true; auto-links: false;">package main
import (
"github.com/antonholmquist/jason"
"log"
)
func main() {
exampleJSON := `{
"name": "Walter White",
"age": 51,
"children": [
"junior",
"holly"
],
"other": {
"occupation": "chemist",
"years": 23
}
}`
j, _ := jason.NewFromString(exampleJSON)
log.Println("name:", j.Get("name").String())
log.Println("age:", j.Get("age").Number())
log.Println("occupation:", j.Get("other", "occupation").String())
log.Println("years:", j.Get("other", "years").Number())
for i, child := range j.Get("children").Array() {
log.Printf("child %d: %s", i, child.String())
}
}</pre>
