解析新浪手机新闻网页，获取5条新的新闻的url存入到数据库
package linksql
import (
"database/sql"
"log"
_"github.com/go-sql-driver/mysql"
)
func Open_url_table() *sql.DB{
db,err:=sql.Open("mysql","root:root@/mysql")
Checkerror(err)
return db
}
func Insertlink(id int,src string,url string){
db:=Open_url_table()
stmt,err1:=db.Prepare("insert into url_table(id,src,url) values(?,?,?)")
if err1!=nil{
log.Fatalln("prepare error",err1)
}
_,err2:=stmt.Exec(id,src,url)
if err2!=nil{
log.Fatalln("Exec error")
}
}
func Checkerror(err error){ //差错
if err!=nil{
log.Fatal(err)
}
}
package search_sina
import (
"net/http"
"log"
"gopkg.in/xmlpath.v2"
"test/linksql"
)
func Get_url(url string){ //找新ＵＲＬ
resp,err:=http.Get(url)
Checkerror(err)
root,err1:=xmlpath.ParseHTML(resp.Body)
Checkerror(err1)
path:=xmlpath.MustCompile(`//dl[@class="f_card"]/../@href`)
iter:=path.Iter(root)
i:=1
for iter.Next() && i<6{
//fmt.Println(iter.Node())
linksql.Insertlink(i,"sina",iter.Node().String())
i++
}
}
func Checkerror(err error){
if err!=nil{
log.Fatalln(err)
}
}
+----+------+-------------------------------------------------------------------------------+
| id | src | url |
+----+------+-------------------------------------------------------------------------------+
| 1 | sina | http://tech.sina.cn/tech_zt/meitu_ipo?vt=4&pos=18 |
| 2 | sina | http://tech.sina.cn/i/gj/2016-12-15/detail-ifxytqav9330894.d.html?vt=4&pos=18 |
| 3 | sina | http://zhuanlan.sina.cn/article?vt=4&pos=18&id=57660&ch=tech |
| 4 | sina | http://tech.sina.cn/i/gj/2016-12-15/detail-ifxytqax6095612.d.html?vt=4&pos=18 |
| 5 | sina | http://tech.sina.cn/i/gj/2016-12-15/detail-ifxytqav9326149.d.html?vt=4&pos=18 |
+----+------+-------------------------------------------------------------------------------+
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