golang读取文件编码转换问题

首先导入包

"code.google.com/p/mahonia"

可以通过此链接获得此包

https://code.google.com/p/mahonia/

参考代码如下：

packagemain

import(
"bufio"
"code.google.com/p/mahonia"
"log"
"os"
"strings"
"time"
)

funcmain(){
//创建日志文件
t:=time.Now()
filepath:="./log_"+strings.Replace(t.String()[:19],":","_",3)+".txt"
file,err:=os.OpenFile(filepath,os.O_CREATE,0666)
iferr!=nil{
log.Fatal("createlogfileFailed!")
}
deferfile.Close()
wFile:=bufio.NewWriter(file)
wFile.WriteString(readfile())
wFile.Flush()
}

funcreadfile()string{
f,err:=os.Open("ex7.txt")
iferr!=nil{
returnerr.Error()
}
deferf.Close()
buf:=make([]byte,1024)
//文件ex7.txt的编码是gb18030
decoder:=mahonia.NewDecoder("gb18030")
ifdecoder==nil{
return"编码不存在!"
}
varstrstring=""
for{
n,_:=f.Read(buf)
if0==n{
break
}
//解码为UTF-8
str+=decoder.ConvertString(string(buf[:n]))
}
returnstr
}