package wxLinkParaser;

import org.openqa.selenium.By;
import org.openqa.selenium.JavascriptExecutor;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.chrome.ChromeDriver;

public class click {
    public boolean click(){
        System.getProperties().setProperty("webdriver.chrome.driver", "C:/Program Files (x86)/Google/Chrome/Application/chromedriver.exe");
        WebDriver webDriver = new ChromeDriver();
       
        try{
            webDriver.get("http://list.taobao.com/itemlist/default.htm?cat=50000671&viewIndex=1&as=0&atype=b&style=grid&same_info=1&isnew=2&tid=0&_input_charset=utf-8");
            try{
                Thread.sleep(5000); // 等待浏览器加载
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            webDriver.manage().window().maximize(); // 使浏览器窗口最大化

            //js代码
            String js1 = "return document.documentElement.scrollHeight;";  // 滑动条的位置值
            String js2 = "scroll(0,10000);";
            
            ((JavascriptExecutor)webDriver).executeScript(js2);//执行js代码，返回浏览器滚动高度
            try{
                Thread.sleep(3000); //等待浏览器加载
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            ((JavascriptExecutor)webDriver).executeScript(js1);//执行js代码，滚动10000像素
            
            
            try{
                Thread.sleep(3000); // wait for web loading
            } catch (InterruptedException e) {
                e.printStackTrace();
            }  
            
             WebElement Whref = webDriver.findElement(By.cssSelector("a.J_Ajax.btn.next"));//得到要点击的“下一页”链接
            
             Whref.click();//进行点击
             //webDriver.close();这句先注视掉，以便观察结果
             return true;
        }catch(org.openqa.selenium.NoSuchElementException ex){
            System.out.println("找不到要的下一页链接！");
            //webDriver.close();这句先注视掉，以便观察结果
            return false;
        }            
        
    }
        
    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        click c = new click();
        if(c.click()){
            System.out.println("点击成功！");
        }
    }

}