golang使用正则表达式解析网页

废话少说，直接奉上代码：

代码如下:

package main
import (
"fmt"
"time"
"io/ioutil"
"net/http"
"regexp"
"strings"
)
func main() {
    ip_pool := []string{
                "172.16.1.128",
                "172.16.1.129",
                "172.16.1.131",
                "172.16.1.132",
                "172.16.1.133",
                "172.16.1.134",
                "172.16.1.135",
                "172.16.1.136",
                "172.16.1.137",
                "172.16.1.138",
                "172.16.1.190",
            }
    for {
        for i:=0;i<len(ip_pool);i++  {
            url := "http://"+ip_pool[i]+":10022"
            //fmt.Println("-----------------",ip_pool[i],"---------")
             get_url(url)
            time.Sleep(1*time.Millisecond)
        }
//time.Sleep(time.Second * 60)
    }
}
func get_url(url string){
    fmt.Println("----------",url,"----------------")
    resp, err := http.Get(url)
    if err != nil {
        fmt.Println("http get error.")
    }
    defer resp.Body.Close()
    body, err := ioutil.ReadAll(resp.Body)
    if err != nil {
        fmt.Println("http read error")
    }
src := string(body)
//将HTML标签全转换成小写
re, _ := regexp.Compile("\\<[\\S\\s]+?\\>")
src = re.ReplaceAllStringFunc(src, strings.ToLower)
//  提取table 标签
re,_ = regexp.Compile("\\<!doc[\\S\\s]+?\\<table")
src = re.ReplaceAllString(src, "<table")
re,_ = regexp.Compile("</table\\>[\\S\\s]+?\\</html\\>")
src = re.ReplaceAllString(src, "</table>")
// 干掉行首的空格
 re,_ = regexp.Compile("(\\<tr>)([\\S\\s\\<>\"\\d]+?)(\\</tr>)")
 //src = re.ReplaceAllString(src, "$2")
 src = re.ReplaceAllString(src, "$2]")
 // 去掉<>标签
re,_ = regexp.Compile("<[\\S\\s]+?>")
src = re.ReplaceAllString(src, "")
re,_ = regexp.Compile("\n")
src = re.ReplaceAllString(src, "")
re,_ = regexp.Compile("[ ]+")
src = re.ReplaceAllString(src, " ")
re,_ = regexp.Compile("]")
 src = re.ReplaceAllString(src, "\n")
// 变成 json                1           2                3           4
re,_ = regexp.Compile("(\\w*)(\\w{2}:\\w{2}:\\w{2}:\\w{2}:\\w{2}:\\w{2})([A-Za-z ]*)(\\d{4}-\\d{2}-\\d{2} \\d{2}:\\d{2}:\\d{2} )([V\\d\\.]* )(\\d{4}-\\d{2}-\\d{2}( \\d{2}:\\d{2}(:\\d{2})?)?)")
/* (((\\d{4}-\\d{2}-\\d{2})+ (\\d{2}:\\d{2}:\\d{2})*?)")
*/
src = re.ReplaceAllString(src, "$1,$2,$3,$4,$5,$6,")
//re,_ = regexp.Compile("(<[\\S\\s]*?\">)([\\S\\s]+?)(</t")
//src = re.ReplaceAllString(src, "$2,")
// re,_ = regexp.Compile("<[\\S\\s]+?>")
// src = re.ReplaceAllString(src, "")
//reg := regexp.MustCompile("([A-Za-z]+?)(\n[\\s]+)([\\d]+)")
// src =  reg.ReplaceAllString(src, "$1:$3")
//去除连续的换行符
//re, _ = regexp.Compile("\\s{2,}")
//src = re.ReplaceAllString(src, "\n")
//re = regexp.MustCompile("\n\\d+")
//fmt.Println(re.ReplaceAllLiteralString("hello\n2\nwork", '\d'))
src = strings.Replace(src,"虚拟机名称 虚拟机MAC 虚拟机状态 心跳时间 引擎版本 病毒库日期 扫描样本数" , "vm_name,vm_mac,vm_state,vm_heart,vm_eg,vm_av_db,vm_count",-1)
fmt.Println(src)
//reg, err := regexp.Compile("[[0-9A-Za-z]{2}:?]{6}")
//fmt.Printf("%q,%v\n", reg.FindString("00:16:3e:4a:29:35"), err)
// "Hello",
// text := "Hello\n123\nGo\n123"
// reg = regexp.MustCompile("([A-Za-z]+?)(\n)([\\d]+)")
// fmt.Printf("%q\n", reg.ReplaceAllString(text, "$3:$1"))
//fmt.Println(strings.TrimSpace(src))
//去除STYLE
//re, _ = regexp.Compile("\\<style[\\S\\s]+?\\</style\\>")
//src = re.ReplaceAllString(src, "")
//去除SCRIPT
//re, _ = regexp.Compile("\\<script[\\S\\s]+?\\</script\\>")
//src = re.ReplaceAllString(src, "")
//去除所有尖括号内的HTML代码，并换成换行符
//re, _ = regexp.Compile("\\<[\\S\\s]+?\\>")
//src = re.ReplaceAllString(src, "\n")
//去除连续的换行符
//re, _ = regexp.Compile("\\s{2,}")
//src = re.ReplaceAllString(src, "\n")
//fmt.Println(strings.TrimSpace(src))
}

以上就是本文给大家分享的代码了，希望大家能够喜欢。