我有一个大致如下所示的html：
<h4>Movies</h4>
<h5><a href="external_link" target="_blank"> A Song For Jenny</a> (2015)</h5>
Rating: PG<br/>
Running Time (minutes): 77<br/>
Description: This Drama, based on real life events, tells the story of a family affected directly by the 7/7 London bombings. It shows love, loss, heartache and ...<br/>
<a href="/bmm/shop/Movie_Detail?movieid=2713288">More about A Song For Jenny</a><br/>
<a href="/bmm/shop/Edit_Movie?movieid=2713288">Edit A Song For Jenny</a><br/>
<br/>
<h5><a href="link" target="_blank">#RealityHigh</a> (2017)</h5>
Rating: PG<br/>
Running Time (minutes): 99<br/>
Description: High-achieving high-school senior Dani Barnes dreams of getting into UC Davis, the world's top veterinary school. Then a glamorous new friend draws ...<br/>
<a href="/bmm/shop/Movie_Detail?movieid=4089906">More about #RealityHigh</a><br/>
<a href="/bmm/shop/Edit_Movie?movieid=4089906">Edit #RealityHigh</a><br/>
<br/>
<h5><a href="link" target="_blank">1 Night</a> (2016)</h5>
Rating: PG<br/>
Running Time (minutes): 80<br/>
Description: Bea, a worrisome teenager, reconnects with her introverted childhood friend, Andy. The two overcome their differences in social status one night aft ...<br/>
<a href="/bmm/shop/Movie_Detail?movieid=3959071">More about 1 Night</a><br/>
<a href="/bmm/shop/Edit_Movie?movieid=3959071">Edit 1 Night</a><br/>
<br/>
<h5><a href="link" target="_blank">10 Cloverfield Lane</a> (2016)</h5>
Rating: PG<br/>
Running Time (minutes): 104<br/>
Description: Soon after leaving her fiancé Michelle is involved in a car accident. She awakens
to find herself sharing an underground bunker with Howard and Emme ...<br/>
<a href="/bmm/shop/Movie_Detail?movieid=3052189">More about 10 Cloverfield Lane</a><br/>
<a href="/bmm/shop/Edit_Movie?movieid=3052189">Edit 10 Cloverfield Lane</a><br/>
<br/>
我需要使用goquery从该页面获取尽可能多的信息。我知道如何提取此片段中用“链接”一词替换的外部链接，我知道如何获取具有更多详细信息的链接，但我也想提取仅包含在文本中的信息，即年份（在标题中） ，运行时间，简短说明和PG评分。我无法弄清楚如何在goquery中执行此操作，因为此文本没有被任何div或其他标签包围。我尝试查找h5标签，然后在它们上调用.Next（），但是我只能找到<br>标签，而不能找到它们之间的文本。我怎样才能做到这一点？如果有比使用goquery更好的方法，那我很好。我的代码如下所示。
// Retrieve the page count:
res, err = http.Get("myUrlAddress")
if err != nil {
fmt.Println(err)
os.Exit(-1)
}
doc, err = goquery.NewDocumentFromResponse(res)
if err != nil {
fmt.Println(err)
os.Exit(-1)
}
links := doc.Find(`a[href*="pageIndex"]`)
fmt.Println(links.Length()) // Output page count
s := doc.Find("h5").First().Next() // I expect it to be the text after the heading.
fmt.Println(s.Text()) // But it's empty and if I check the node type it says br
我以某种方式不喜欢使用正则表达式解析html的想法。我觉得对于像标签顺序之类的细微变化太脆弱了。
我认为最好还是使用goquery所基于的html.Node（golang.org/x/net/html）。想法是遍历兄弟姐妹，直到兄弟姐妹用完，或者h5遇到下一个兄弟姐妹。处理链接或任何其他元素标签可能会有点麻烦，因为html.Node提供了一个关于属性的相当不友好的api，但是从中切换回goquery会更加麻烦。
package main
import (
"fmt"
"github.com/PuerkitoBio/goquery"
"golang.org/x/net/html"
"golang.org/x/net/html/atom"
"os"
"strings"
)
type Movie struct {
}
func (m Movie) addTitle(s string) {
fmt.Println("Title", s)
}
func (m Movie) addProperty(s string) {
if s == "" {
return
}
fmt.Println("Property", s)
}
var M []*Movie
func parseMovie(i int, s *goquery.Selection) {
m := &Movie{}
m.addTitle(s.Text())
loop:
for node := s.Nodes[0].NextSibling; node != nil; node = node.NextSibling {
switch node.Type {
case html.TextNode:
m.addProperty(strings.TrimSpace(node.Data))
case html.ElementNode:
switch node.DataAtom {
case atom.A:
//link, do something. You may want to transfer back to go query
fmt.Println(node.Attr)
case atom.Br:
continue
case atom.H5:
break loop
}
}
}
M = append(M, m)
}
func main() {
r, err := os.Open("movie.html")
if err != nil {
panic(err)
}
doc, err := goquery.NewDocumentFromReader(r)
if err != nil {
panic(err)
}
doc.Find("h5").Each(parseMovie)
}
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我来说两句