Gjson

• 解析json,xml,结构体
  jsonContent := {"name":"john", "score":"100"}
  j := gjson.New(jsonContent)
  fmt.Println(j.Get(“name”))

jsonContent := <?xml version="1.0" encoding="UTF-8"?><doc><name>john</name><score>100</score></doc>
j := gjson.New(jsonContent)
fmt.Println(j.Get(“doc.name”))

type Me struct {
Name string json:"name"
Score int json:"score"
}
me := Me{
Name: “john”,
Score: 100,
}
j := gjson.New(me)
fmt.Println(j.Get(“name”))
//通过文件读取,支持xml,json
jsonFilePath := gdebug.TestDataPath(“json”, “data1.json”)
j, _ := gjson.Load(jsonFilePath)
//通过字符串
jsonContent := {"name":"john", "score":"100"}
j, _ := gjson.LoadContent(jsonContent)

• 层级访问
  data :=
  `{
  “users” : {

    "count" : 2,
    "list"  : [
        {"name" : "Ming", "score" : 60},
        {"name" : "John", "score" : 99.5}
    ]

  }
  }`
  j, _ := gjson.DecodeToJson(data)
  j.SetViolenceCheck(true) //设置键名带有.的情况读取
  fmt.Println(“John Score:”, j.GetFloat32(“users.list.1.score”))
  m := j.GetMap(“map”) //获取map
  s := j.GetArray(“slice”) //获取scile
  //处理list
  j, _ := gjson.DecodeToJson(data)
  s:=j.GetJsons(“users.list”)
  for _,v :=range s{

    ar:=v.Map()
    fmt.Println(ar["name"],ar["score"])
    ar:=v.GetString("name") //取值
    fmt.Println(ar)

  }

• 转换结构体
  data :={ "count" : 1, "array" : ["John", "Ming"] }
  type Users struct {

    Count int
    Array []string

  }
  users := new(Users)
  j,_ := gjson.DecodeToJson(data)
  j.Struct(users)
  //j.GetStruct(“users”, users) 用于转换某个节点
  fmt.Println(users)

• 生成json
  j := gjson.New(nil)
  for i := 0; i < 2; i++ {//数组
  //j.Set(“name”, “John”)
  //j.Set(“score”, 99.5)

    j.Set(fmt.Sprintf(`%d.id`, i), "测试")

  }
  fmt.Println(j.MustToJsonString())

• 修改或添加
  j,_:= gjson.DecodeToJson(data)
  j.Set(“users.list.1.score”, 100)
  fmt.Println(j.MustToJsonString())
  fmt.Println(j.MustToXmlString()) xml
  fmt.Println(j.MustToYamlString())
  fmt.Println(j.MustToTomlString())
  fmt.Println(j.MustToIniString())
  j.Set(“users.qq”,nil) 删除
  j.Append(“users.list”,2) 添加切片