golang - youdao.dict

查词小工具

• 获取翻译解释
• 获取发音(如果是英文)

code

package main

import (
	"encoding/json"
	"fmt"
	"io"
	"log"
	"net/http"
	"net/url"
	"os"
	"os/exec"
	"strings"
	"sync"
)

// 翻译查询结果结构
type translation struct {
	rawText     string
	Translation []string  `json:"translation"`
	Basic       basicInfo `json:"basic"`
	ErrorCode   int       `json:"errorCode"`
}

// 内部结构
type basicInfo struct {
	Explains []string `json:"explains"`
}

// 区分翻译和发音
type sourceType struct {
	path     string
	category int
	rawText  string
}

func main() {
	// 传递翻译结构的ch
	ch := make(chan translation)
	var wg sync.WaitGroup
	// 获取所有需要请求的内容
	for _, key := range translateURL(os.Args[1:]) {
		wg.Add(1)
		go func(key sourceType) {
			defer wg.Done()
			// 无论语音还是文字都要请求
			resp, err := http.Get(key.path)
			if err != nil {
				fmt.Fprintf(os.Stderr, "fetch %v\n", err)
				os.Exit(1)
			}
			defer resp.Body.Close()
			// 文字翻译
			if key.category == 0 {
				trans := translation{}
				err = json.NewDecoder(resp.Body).Decode(&trans)

				if err != nil {
					fmt.Fprintf(os.Stderr, "fetch %v\n", err)
					os.Exit(1)
				}
				if trans.ErrorCode != 0 {
					fmt.Fprintf(os.Stderr, "error code %v\n", trans.ErrorCode)
					os.Exit(1)
				}
				trans.rawText = key.rawText

				ch <- trans
			}
			// 发音类型处理
			if key.category == 1 {
				out, err := os.Create("sample.mp3")
				if err != nil {
					// panic?
				}
				defer out.Close()
				// 存为文件
				io.Copy(out, resp.Body)
				if err != nil {
					os.Exit(1)
				}
				// 用系统播放器播放
				cmd := exec.Command("afplay", "sample.mp3")
				err = cmd.Start()
				if err != nil {
					log.Fatal(err)
				}
				fmt.Println("播放中...")
				err = cmd.Wait()
			}
		}(key)
	}

	go func() {
		wg.Wait()
		// 所有goroutines结束后结束ch
		close(ch)
	}()
	for item := range ch {
		// fmt.Println(item)
		explain := func() string {
			if len(item.Basic.Explains) > 0 {
				return strings.Join(item.Basic.Explains, "\n")
			}
			// 如果没有解释的内容
			return "没有找到结果"
		}()
		fmt.Printf("%s - %s: \t \n%s", item.rawText, strings.Join(item.Translation, "|"), explain)
		fmt.Printf("\n \n")
	}
}

func translateURL(keys []string) (source []sourceType) {
	source = []sourceType{}
	for _, key := range keys {
		source = append(source, sourceType{path: "http://dict.youdao.com/speech?audio=" + url.QueryEscape(key), category: 1, rawText: key})
		source = append(source, sourceType{path: "http://fanyi.youdao.com/openapi.do?keyfrom=neverland&key=969918857&type=data&doctype=json&version=1.1&q=" + url.QueryEscape(key), category: 0, rawText: key})
	}
	return
}