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  • golang学习笔记---gojson包

    gojson是快速解析json数据的一个golang包,你使用它可以快速的查找json内的数据

    安装:

    go get github.com/widuu/gojson
    

      

    使用范例:

    package main
    
    import (
    	"fmt"
    
    	gojson "github.com/widuu/gojson"
    )
    
    type Js struct {
    	data interface{}
    }
    
    func main() {
    
    	json := `{"from":"en","to":"zh","trans_result":{"src":"today","dst":"u4ecau5929"},"result":["src","today","dst","u4ecau5929"]}`
    
    	c4 := gojson.Json(json).Getpath("trans_result", "src").Tostring()
    	fmt.Println(c4) //today
    
    	c7 := gojson.Json(json).Get("result").Arrayindex(4)
    	fmt.Println(c7) //今天
    
    	json1 := `{"from":"en","to":"zh","trans_result":[{"src":"today","dst":"u4ecau5929"},{"src":"tomorrow","dst":"u660eu5929"}]}`
    	c8 := gojson.Json(json1).Get("trans_result").Getkey("src", 2).Tostring()
    	fmt.Println(c8) //则返回trans_result第二组中的src tomorrow
    
    	c9k, c9v := gojson.Json(json1).Get("trans_result").ToArray()
    	fmt.Println(c9k, c9v) //[src dst src dst] [today 今天 tomorrow 明天]
    
    	c3k, c3v := gojson.Json(json).Getindex(1).ToArray()
    	fmt.Println(c3k, c3v) //	[from] [en]
    
    	json2 := `{"from":"en","to":"zh","trans_result":[{"src":"today","dst":"u4ecau5929"},{"src":"tomorrow","dst":"u660eu5929"}]}`
    
    	c10 := gojson.Json(json2).Getindex(3).Getindex(1).Getindex(1).Get("src").Tostring()
    	fmt.Println(c10) //today
    
    	c11 := gojson.Json(json).Get("result").StringtoArray()
    	fmt.Println(c11) //[src today dst 今天]
    
    	gojson.Json(json).Get("result").Type() //[]interface {}
    }
    

      

    ###使用简介

    结构

    type Js struct {
    	data interface{}
    }
    

    (1) func Json(data) *Js data为string类型,初始化Js结构,解析json并且return Js.data

    json := `{"from":"en","to":"zh"}`
    c1 := gojson.Json(json) //&{map[from:en to:zh]}
    

    (2) func (*Js) Get() *js 获取简单json中的某个值,递归查找,return Js.data

    json := `{"from":"en","to":"zh","trans_result":{"src":"today","dst":"u4ecau5929"},"result":["src","today","dst","u4ecau5929"]}`
    
    c2 := gojson.Json(json).Get("trans_result").Get("dst")
    fmt.Println(c2) //&{今天}
    
    c2 := gojson.Json(json).Get("from")
    fmt.Println(c2) //&{en}
    

    (3) func (*Js)Tostring()string 将单个数据转化成string类型,因为string类型转其它类型都比较好转就让数据返回string

    c2 := gojson.Json(json).Get("from").Tostring()
    fmt.Println(c2) //en
    

    (4) func (j *Js) Getpath(args ...string) *Js 通过输入string的多个参数来获取某个值,json数据一定要是递归的

    c4 := gojson.Json(json).Getpath("trans_result", "src").Tostring()
    fmt.Println(c4)  //today
    

    (5) func (j *Js) Arrayindex(i int) string 获取Json数据中数组结构的值,根据输入的num来返回对应的值,仅限于处理{"result":["src","today","dst","u4ecau5929"]}中[]内的值

    json := `{"from":"en","to":"zh","trans_result":{"src":"today","dst":"u4ecau5929"},"result":["src","today","dst","u4ecau5929"]}`
    c7 := gojson.Json(json).Get("result").Arrayindex(1)
    fmt.Println(c7) //src
    

    (6) func (j *Js) Getkey(key string, i int) *Js 这个函数是针对数据中有重复数据,取值,使用js.data必须是[]interface{}类型,这个是百度翻译时候返回的js可能会用到

    json1 := `{"from":"en","to":"zh","trans_result":[{"src":"today","dst":"u4ecau5929"},{"src":"tomorrow","dst":"u660eu5929"}]}`
    c8 := gojson.Json(json1).Get("trans_result").Getkey("src", 1).Tostring()
    fmt.Println(c8) //则返回trans_result第一组中的src today
    

    (7) func (j *Js) ToArray() (k, d []string) 将json数据转换成key []string{} value []string{} 一一对应的数组,只能使用到二级 不能到多级

    c9k, c9v := gojson.Json(json1).Get("trans_result").ToArray()
    fmt.Println(c9k, c9v) //[src dst src dst] [today 今天 tomorrow 明天]
    
    c3k, c3v := gojson.Json(json).Getindex(1).ToArray()
    fmt.Println(c3k, c3v) //	[from] [en]
    

    (8) func (j *Js) Getindex(i int) *Js 根据i返回json内的数据,可以逐级查找

    json1 := `{"from":"en","to":"zh","trans_result":[{"src":"today","dst":"u4ecau5929"},{"src":"tomorrow","dst":"u660eu5929"}]}`
    
    c10 := gojson.Json(json1).Getindex(3).Getindex(1).Getindex(1).Get("src").Tostring()
    fmt.Println(c10) //today
    

    (9) func (j *Js) StringtoArray() []string 将{"result":["src","today","dst","u4ecau5929"]}数据json中的result对应的数据,返回成[]string的slice

    c11 := gojson.Json(json).Get("result").StringtoArray()
    fmt.Println(c11) //[src today dst 今天]
    

    (10) func (j *Js) Type() 打印测试用,打印数据类型

    gojson.Json(json).Get("result").Type()  //[]interface {}
    

    ##English Document

    ###Introduction

    gojson是快速解析json数据的一个golang包,你使用它可以快速的查找json内的数据

    ###Install

     go get github.com/widuu/gojson
    

    ###Use

    structure

    type Js struct {
    	data interface{}
    }
    

      

    (1) func Json(data) *Js data is string type,initialize Js structure, parse the json and return Js.data

    json := `{"from":"en","to":"zh"}`
    c1 := gojson.Json(json) //&{map[from:en to:zh]}
    

      

    (2) func (*Js) Get() *js Retrieve a value from a simple json, recursive lookup,return Js.data

    json := `{"from":"en","to":"zh","trans_result":{"src":"today","dst":"u4ecau5929"},"result":["src","today","dst","u4ecau5929"]}`
    
    c2 := gojson.Json(json).Get("trans_result").Get("dst")
    fmt.Println(c2) //&{今天}
    
    c2 := gojson.Json(json).Get("from")
    fmt.Println(c2) //&{en}
    

      

    (3) func (*Js)Tostring()string To a single data into type string, for type string turned other types are better let return to string data

    c2 := gojson.Json(json).Get("from").Tostring()
    fmt.Println(c2) //en
    

      

    (4) func (j *Js) Getpath(args ...string) *Js Get a value by multiple parameters of the input string, the json data must be recursive

    c4 := gojson.Json(json).Getpath("trans_result", "src").Tostring()
    fmt.Println(c4)  //today
    

      

    (5) func (j *Js) Arrayindex(i int) string Get the value of the array structure in the Json data, based on the input of num to return the value of the corresponding is limited to processing {" result ": [" SRC", "today", "DST", " u4eca u5929"]} [] in value

    json := `{"from":"en","to":"zh","trans_result":{"src":"today","dst":"u4ecau5929"},"result":["src","today","dst","u4ecau5929"]}`
    c7 := gojson.Json(json).Get("result").Arrayindex(1)
    fmt.Println(c7) //src
    

      

    (6) func (j *Js) Getkey(key string, i int) *Js There is duplicate data in this function is for data, the values, use js. Data must be [] interface {} type, this is baidu translation when the returned js might need

    json1 := `{"from":"en","to":"zh","trans_result":[{"src":"today","dst":"u4ecau5929"},{"src":"tomorrow","dst":"u660eu5929"}]}`
    c8 := gojson.Json(json1).Get("trans_result").Getkey("src", 1).Tostring()
    fmt.Println(c8) //则返回trans_result第一组中的src today
    

      

    (7) func (j *Js) ToArray() (k, d []string) Converting the json data into key string [] {} the value string [] {} one-to-one array, can only be used to level 2 not to multistage

    c9k, c9v := gojson.Json(json1).Get("trans_result").ToArray()
    fmt.Println(c9k, c9v) //[src dst src dst] [today 今天 tomorrow 明天]
    
    c3k, c3v := gojson.Json(json).Getindex(1).ToArray()
    fmt.Println(c3k, c3v) //	[from] [en]
    

      

    (8) func (j *Js) Getindex(i int) *Js According to the I returned in the json data, can find step by step

    json1 := `{"from":"en","to":"zh","trans_result":[{"src":"today","dst":"u4ecau5929"},{"src":"tomorrow","dst":"u660eu5929"}]}`
    
    c10 := gojson.Json(json1).Getindex(3).Getindex(1).Getindex(1).Get("src").Tostring()
    fmt.Println(c10) //today
    

      

    (9) func (j *Js) StringtoArray() []string Will {" result ":" SRC ", "today", "DST", " u4eca u5929"]} corresponding data, the result of the json data returned into [] string slice

    c11 := gojson.Json(json).Get("result").StringtoArray()
    fmt.Println(c11) //[src today dst 今天]
    

      

     

    (10) func (j *Js) Type() Print test, the data type

    gojson.Json(json).Get("result").Type()  //[]interface {}
    

      



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  • 原文地址:https://www.cnblogs.com/saryli/p/15420558.html
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