selenium技巧——通过js来控制滚动条 　业务流程：

package com.example.tests;

import org.junit.*;
import org.openqa.selenium.*;
import org.openqa.selenium.ie.InternetExplorerDriver;

public class SeleniumWebDriver {
 public static WebDriver driver;
 
 @Test
 public void testUnit() {
  driver = new InternetExplorerDriver();
  driver.get(http://nanjing.xiaomishu.com/shop/search/sp2048_745);
  
  maxBrowser(driver);
  setScroll(driver,500);

  driver.findElement(By.linkText("投诉与建议")).click(); 
  driver.findElement(By.xpath("//input[@id='repName']")).sendKeys("1");
  driver.findElement(By.xpath("//input[@id='repMail']")).sendKeys("1");
  driver.findElement(By.xpath("//textarea[@id='repContent']")).sendKeys("hello");
  driver.findElement(By.xpath("//a[@id='repBtn']")).click();
  
  Assert.assertEquals("您输入的邮箱格式不正确", driver.findElement(By.xpath("//div[@id='floatBox_remind']/span")).getText());
  
 }
 
 
 //将IE最大化
  public static void  maxBrowser(WebDriver driver){
   try {
    String maxBroswer = "if (window.screen) {window.moveTo(0, 0);" +
      "window.resizeTo(window.screen.availWidth,window.screen.availHeight);}";
    
    JavascriptExecutor jse=(JavascriptExecutor) driver;
    jse.executeScript(maxBroswer);
   } catch (Exception e) {
    System.out.println("Fail to  Maximization browser");
   }
  }
 
 //将滚动条滚到适合的位置
 public static void setScroll(WebDriver driver,int height){
  try {
   String setscroll = "document.documentElement.scrollTop=" + height;
   
   JavascriptExecutor jse=(JavascriptExecutor) driver;
   jse.executeScript(setscroll);
  } catch (Exception e) {
   System.out.println("Fail to set the scroll.");
  }   
 } 
}