golang实现http服务器处理静态文件示例
本文实例讲述了golang实现http服务器处理静态文件的方法。分享给大家供大家参考，具体如下：
新版本更精简:
packagemain
import(
"flag"
"log"
"net/http"
"os"
"io"
"path"
"strconv"
)
vardirstring
varportint
varstaticHandlerhttp.Handler
//初始化参数
funcinit(){
dir=path.Dir(os.Args[0])
flag.IntVar(&port,"port",80,"服务器端口")
flag.Parse()
staticHandler=http.FileServer(http.Dir(dir))
}
funcmain(){
http.HandleFunc("/",StaticServer)
err:=http.ListenAndServe(":"+strconv.Itoa(port),nil)
iferr!=nil{
log.Fatal("ListenAndServe:",err)
}
}
//静态文件处理
funcStaticServer(whttp.ResponseWriter,req*http.Request){
ifreq.URL.Path!="/"{
staticHandler.ServeHTTP(w,req)
return
}
io.WriteString(w,"hello,world!\n")
}
老版本:
packagemain
import(
"flag"
"log"
"net/http"
"os"
"path"
"strconv"
)
vardirstring
varportint
varindexs[]string
//初始化参数
funcinit(){
dir=path.Dir(os.Args[0])
flag.IntVar(&port,"port",80,"服务器端口")
flag.Parse()
indexs=[]string{"index.html","index.htm"}
}
funcmain(){
http.HandleFunc("/",StaticServer)
err:=http.ListenAndServe(":"+strconv.Itoa(port),nil)
iferr!=nil{
log.Fatal("ListenAndServe:",err)
}
}
//静态文件处理
funcStaticServer(whttp.ResponseWriter,req*http.Request){
file:=dir+req.URL.Path
fi,err:=os.Stat(file)
ifos.IsNotExist(err){
http.NotFound(w,req)
return
}
iferr!=nil{
http.Error(w,err.Error(),500)
return
}
iffi.IsDir(){
ifreq.URL.Path[len(req.URL.Path)-1]!='/'{
http.Redirect(w,req,req.URL.Path+"/",301)
return
}
for_,index:=rangeindexs{
fi,err=os.Stat(file+index)
iferr!=nil{
continue
}
http.ServeFile(w,req,file+index)
return
}
http.NotFound(w,req)
return
}
http.ServeFile(w,req,file)
}
希望本文所述对大家Go语言程序设计有所帮助。