GO语言实现一个简单的命令行词典

一个命令行词典,使用浏览器中的开发者工具进行抓包。拿到接口后再在 IDE 中进行实现。

抓包

打开检查后找到dict查看状态代码是否为POST,复制dict选择复制为cURL(bash)拿到接口


通过https://curlconverter.com/#go将cURL转写成GO语言代码

序列化

将我们的输入通过序列化的方式写入,这个可以通过写一个结构体来实现,使用 json.Marshal 方法实现序列化,此时输入通过字节的方式写入

type DictRequest struct {
	TransType string `json:"trans_type"`
	Source    string `json:"source"`
}
request := DictRequest{TransType: "en2zh", Source: word}
	input, err := json.Marshal(request)
	if err != nil {
		log.Fatal(err)
	}
	var data = bytes.NewReader(input)

返回值反序列化

首先确定返回值需要返回的内容及格式,在响应中可以获取到

可以按照返回格式再写一个结构体,或者直接获取JSON转Golang Struct
,将响应中的内容复制会直接生成所对应的结构体

type dictResponse struct {
	Rc   int `json:"rc"`
	Wiki struct {
		KnownInLaguages int `json:"known_in_laguages"`
		Description     struct {
			Source string      `json:"source"`
			Target interface{} `json:"target"`
		} `json:"description"`
		ID   string `json:"id"`
		Item struct {
			Source string `json:"source"`
			Target string `json:"target"`
		} `json:"item"`
		ImageURL  string `json:"image_url"`
		IsSubject string `json:"is_subject"`
		Sitelink  string `json:"sitelink"`
	} `json:"wiki"`
	Dictionary struct {
		Prons struct {
			EnUs string `json:"en-us"`
			En   string `json:"en"`
		} `json:"prons"`
		Explanations []string      `json:"explanations"`
		Synonym      []string      `json:"synonym"`
		Antonym      []interface{} `json:"antonym"`
		WqxExample   [][]string    `json:"wqx_example"`
		Entry        string        `json:"entry"`
		Type         string        `json:"type"`
		Related      []interface{} `json:"related"`
		Source       string        `json:"source"`
	} `json:"dictionary"`
}

通过对输出流的反序列化 json.Unmarshal 方法得到该结构体类型的返回值,由此可以随意控制想得到的的输出格式,这里我们只需要中文解释的内容

var output dictResponse
	err = json.Unmarshal(bodyText, &output)
	if err != nil {
		log.Fatal(err)
	}

	fmt.Println(word, "UK:", output.Dictionary.Prons.En, "US:", output.Dictionary.Prons.EnUs)
	for _, i := range output.Dictionary.Explanations {
		fmt.Println(i)
	}

All Code:

package main

import (
	"bytes"
	"encoding/json"
	"fmt"
	"io/ioutil"
	"log"
	"net/http"
)

type DictRequest struct {
	TransType string `json:"trans_type"`
	Source    string `json:"source"`
}
type OutputRespond struct {
	Rc   int `json:"rc"`
	Wiki struct {
		KnownInLaguages int `json:"known_in_laguages"`
		Description     struct {
			Source string      `json:"source"`
			Target interface{} `json:"target"`
		} `json:"description"`
		ID   string `json:"id"`
		Item struct {
			Source string `json:"source"`
			Target string `json:"target"`
		} `json:"item"`
		ImageURL  string `json:"image_url"`
		IsSubject string `json:"is_subject"`
		Sitelink  string `json:"sitelink"`
	} `json:"wiki"`
	Dictionary struct {
		Prons struct {
			EnUs string `json:"en-us"`
			En   string `json:"en"`
		} `json:"prons"`
		Explanations []string      `json:"explanations"`
		Synonym      []string      `json:"synonym"`
		Antonym      []interface{} `json:"antonym"`
		WqxExample   [][]string    `json:"wqx_example"`
		Entry        string        `json:"entry"`
		Type         string        `json:"type"`
		Related      []interface{} `json:"related"`
		Source       string        `json:"source"`
	} `json:"dictionary"`
}

func query(word string) {
	client := &http.Client{}
	//var data = strings.NewReader(`{"trans_type":"en2zh","source":"hello"}`)
	request := DictRequest{"en2zh", word}
	input, err := json.Marshal(request)
	if err != nil {
		log.Fatal(err)
	}
	data := bytes.NewReader(input)

	req, err := http.NewRequest("POST", "https://api.interpreter.caiyunai.com/v1/dict", data)
	if err != nil {
		log.Fatal(err)
	}
	req.Header.Set("authority", "api.interpreter.caiyunai.com")
	req.Header.Set("accept", "application/json, text/plain, */*")
	req.Header.Set("accept-language", "zh-CN,zh;q=0.9,en;q=0.8,en-GB;q=0.7,en-US;q=0.6")
	req.Header.Set("app-name", "xy")
	req.Header.Set("content-type", "application/json;charset=UTF-8")
	req.Header.Set("device-id", "")
	req.Header.Set("origin", "https://fanyi.caiyunapp.com")
	req.Header.Set("os-type", "web")
	req.Header.Set("os-version", "")
	req.Header.Set("referer", "https://fanyi.caiyunapp.com/")
	req.Header.Set("sec-ch-ua", `"Not_A Brand";v="99", "Microsoft Edge";v="109", "Chromium";v="109"`)
	req.Header.Set("sec-ch-ua-mobile", "?0")
	req.Header.Set("sec-ch-ua-platform", `"Windows"`)
	req.Header.Set("sec-fetch-dest", "empty")
	req.Header.Set("sec-fetch-mode", "cors")
	req.Header.Set("sec-fetch-site", "cross-site")
	req.Header.Set("user-agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36 Edg/109.0.1518.55")
	req.Header.Set("x-authorization", "token:qgemv4jr1y38jyq6vhvi")
	resp, err := client.Do(req)
	if err != nil {
		log.Fatal(err)
	}
	defer resp.Body.Close()
	bodyText, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		log.Fatal(err)
	}
	//fmt.Printf("%s\n", bodyText)
	var output OutputRespond
	err = json.Unmarshal(bodyText, &output)
	if err != nil {
		log.Fatal(err)
	}
	fmt.Println(word, ": ")
	fmt.Println("UK: ", output.Dictionary.Prons.En, "US: ", output.Dictionary.Prons.EnUs)
	for _, i := range output.Dictionary.Explanations {
		fmt.Println(i)
	}
}

func main() {
	fmt.Println("Please input a word")
	var word string
	_, err := fmt.Scanf("%s", &word)
	if err != nil {
		log.Fatal(err)
		return
	}
	query(word)
}
posted @ 2023-01-18 16:27  347Foricher  阅读(55)  评论(0)    收藏  举报