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| package main
import (
"database/sql"
"fmt"
"github.com/PuerkitoBio/goquery"
"github.com/jinzhu/gorm"
_ "github.com/jinzhu/gorm/dialects/mysql"
"net/http"
"regexp"
"strconv"
"strings"
)
const (
USERNAME = "root"
PASSWORD = "123456"
HOST = "127.0.0.1"
PORT = "3306"
DBNAME = "spider"
)
type MovieData struct {
Title string `json:"title"`
Director string `json:"Director"`
Picture string `json:"Picture"`
Actor string `json:"Actor"`
Year string `json:"Year"`
Score string `json:"Score"`
Quote string `json:"Quote"`
}
var DB *sql.DB
func InitDBBySQL() {
path := strings.Join([]string{USERNAME, ":", PASSWORD, "@tcp(", HOST, ":", PORT, ")/", DBNAME, "?charset=utf8"}, "")
DB, _ = sql.Open("mysql", path)
DB.SetConnMaxLifetime(10)
DB.SetMaxIdleConns(5)
if err := DB.Ping(); err != nil {
fmt.Println("opon database fail")
return
}
fmt.Println("connect success")
}
var gormdb *gorm.DB
func InitDBByGORM() {
var err error
path := strings.Join([]string{USERNAME, ":", PASSWORD, "@tcp(", HOST, ":", PORT, ")/", DBNAME, "?charset=utf8"}, "")
gormdb, err = gorm.Open("mysql", path)
if err != nil {
panic(err)
}
_ = gormdb.AutoMigrate(&NewD{})
sqlDB := gormdb.DB()
sqlDB.SetMaxIdleConns(10)
sqlDB.SetMaxOpenConns(100)
fmt.Println("connect success")
}
func main() {
InitDBByGORM()
for i := 0; i < 10; i++ {
fmt.Printf("正在爬取第 %d 页的信息\n", i)
Spider(strconv.Itoa(i * 25))
}
}
func Spider(page string) {
client := http.Client{}
URL := "https://movie.douban.com/top250?start=" + page
req, err := http.NewRequest("GET", URL, nil)
if err != nil {
fmt.Println("构造Get请求失败： ", err)
}
req.Header.Set("Connection", "keep-alive")
req.Header.Set("Pragma", "no-cache")
req.Header.Set("Cache-Control", "no-cache")
req.Header.Set("Upgrade-Insecure-Requests", "1")
req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
req.Header.Set("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.198 Safari/537.36")
req.Header.Set("Accept", "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9")
req.Header.Set("Accept-Language", "zh-CN,zh;q=0.9")
resp, err := client.Do(req)
if err != nil {
fmt.Println("发送请求失败: ", err)
}
defer resp.Body.Close()
doc, err := goquery.NewDocumentFromReader(resp.Body)
if err != nil {
fmt.Println("解析失败", err)
}
doc.Find("#content > div > div.article > ol > li").
Each(func(i int, s *goquery.Selection) {
var data MovieData
title := s.Find("div > div.info > div.hd > a > span:nth-child(1)").Text()
img := s.Find("div > div.pic > a > img")
imgTmp, ok := img.Attr("src")
info := s.Find("div > div.info > div.bd > p:nth-child(1)").Text()
score := s.Find("div > div.info > div.bd > div > span.rating_num").Text()
quote := s.Find("div > div.info > div.bd > p.quote > span").Text()
if ok {
director, actor, year := InfoSpite(info)
data.Title = title
data.Director = director
data.Actor = actor
data.Picture = imgTmp
data.Year = year
data.Score = score
data.Quote = quote
if InsertDataByGORM(data) {
fmt.Printf("插入成功：%+v\n", data)
} else {
fmt.Printf("插入失败：%+v\n", data)
}
}
})
}
func InfoSpite(info string) (director, actor, year string) {
directorRe, _ := regexp.Compile(`导演:(.*)主演:`)
director = string(directorRe.Find([]byte(info)))
actorRe, _ := regexp.Compile(`主演:(.*)`)
actor = string(actorRe.Find([]byte(info)))
yearRe, _ := regexp.Compile(`(\d+)`)
year = string(yearRe.Find([]byte(info)))
return
}
func InsertDataBySQL(data MovieData) bool {
tx, err := DB.Begin()
if err != nil {
fmt.Println("开启数据库事务DB.Begin()失败:", err)
return false
}
stmt, err := tx.Prepare("Insert INTO douban_movie(`Title`, `Director`, `Picture`, `Actor`, `Year`, `Score`, `Quote`) VALUES (?, ?, ?, ?, ?, ?, ?)")
if err != nil {
fmt.Println("数据准备tx.Prepare失败：", err)
return false
}
_, err = stmt.Exec(data.Title, data.Director, data.Picture, data.Actor, data.Year, data.Score, data.Quote)
if err != nil {
fmt.Println("数据插入stmt.Exec失败：", err)
return false
}
tx.Commit()
return true
}
type NewD struct {
gorm.Model
Title string `gorm:"type:varchar(255);not null;"`
Director string `gorm:"type:varchar(256);not null;"`
Picture string `gorm:"type:varchar(256);not null;"`
Actor string `gorm:"type:varchar(256);not null;"`
Year string `gorm:"type:varchar(256);not null;"`
Score string `gorm:"type:varchar(256);not null;"`
Quote string `gorm:"type:varchar(256);not null;"`
}
func InsertDataByGORM(data MovieData) bool {
NewA := NewD{
Title: data.Title,
Director: data.Director,
Picture: data.Picture,
Actor: data.Actor,
Year: data.Year,
Score: data.Score,
Quote: data.Quote,
}
err := gormdb.Create(&NewA).Error
if err != nil {
return false
}
return true
}
|
