解析csv文件时的奇怪输出

时间:2017-09-19 16:56:53

标签: csv go encoding utf-16

我使用golang从谷歌api解析csv文件,文件以utf-16编码,下面的代码尝试读取一条记录(跳过标题)并打印记录,但它给我的输出像这很奇怪:

sample

我猜它可能与utf-16编码有关,但不知道细节,这里是代码:     包主要

, v=/09/20 00:35:42 k=Smartfren Andromax AD681H

1 个答案:

答案 0 :(得分:3)

如您所料,输入数据必须从UTF-16编码字符流转换为UTF-8编码字符。您可以使用Go子存储库包golang.org/x/text/encoding/unicode

来实现
package main

import (
    "encoding/csv"
    "io"
    "log"
    "net/http"
    "strings"

    "golang.org/x/text/encoding/unicode"
)

var url = "http://storage.googleapis.com/play_public/supported_devices.csv"

func main() {

    resp, err := http.Get(url)
    if err != nil {
        return
    }
    defer resp.Body.Close()

    dec := unicode.UTF16(unicode.LittleEndian, unicode.UseBOM).NewDecoder()
    reader := dec.Reader(resp.Body)

    r := csv.NewReader(reader)
    r.LazyQuotes = true
    r.FieldsPerRecord = -1
    // skip header
    r.Read()

    m := make(map[string]string)
    for {
        record, err := r.Read()
        if err == io.EOF {
            break
        }
        if err != nil {
            log.Println(err)
            continue
        }
        if len(record) >= 4 {
            m[strings.TrimSpace(record[3])] = strings.TrimSpace(record[1])
            for k, v := range m {
                log.Printf("k=%s, v=%s\n", k, v)
            }
            break
        }
    }
}