Selenium2学习-029-WebUI自动化实战实例-027-判断元素是否存在

非常简单的源码，敬请各位小主参阅。若有不足之处，敬请大神指正，不胜感激！

     /**
      * Verify the element exist or not
      *
      * @author Aaron.ffp
      * @version V1.0.0: autoUISelenium main.java.aaron.sele.demo IsWebelementExist.java isElementExist, 2015-1-22 3:13:34 Exp $
      *
      * @param by : By
      *
      * @return boolean
      */
     public boolean isElementExist(By by){
         boolean exist = false;

         try {
             this.webdriver.findElement(by);
             exist = true;
         } catch (NoSuchElementException e) {
             this.logger.error(e);
         }

         return exist;
     }

     /**
      * Verify the element exist or not(ID, name, cssSelector, xpath, linkText, className, partialLinkText, tagName)
      *
      * @author Aaron.ffp
      * @version V1.0.0: autoUISelenium main.java.aaron.sele.demo IsWebelementExist.java isElementExist, 2015-1-22 3:13:34 Exp $
      *
      * @param locator  : (ID, name, cssSelector, xpath, linkText, className, partialLinkText, tagName)
      *
      * @return boolean
      */
     public boolean isElementExist(String locator){
         boolean exist = false;

         /* ID */
         try {
             this.webdriver.findElement(By.id(locator));
             exist = true;
             return exist;
         } catch (NoSuchElementException e) {
             this.logger.error(e);
         }

         /* name */
         try {
             this.webdriver.findElement(By.name(locator));
             exist = true;
             return exist;
         } catch (NoSuchElementException e) {
             this.logger.error(e);
         }

         /* cssSelector */
         try {
             this.webdriver.findElement(By.cssSelector(locator));
             exist = true;
             return exist;
         } catch (NoSuchElementException e) {
             this.logger.error(e);
         }

         /* Xpath */
         try {
             this.webdriver.findElement(By.xpath(locator));
             exist = true;
             return exist;
         } catch (NoSuchElementException e) {
             this.logger.error(e);
         }

         /* linkText */
         try {
             this.webdriver.findElement(By.linkText(locator));
             exist = true;
             return exist;
         } catch (NoSuchElementException e) {
             this.logger.error(e);
         }

         /* className */
         try {
             this.webdriver.findElement(By.className(locator));
             exist = true;
             return exist;
         } catch (NoSuchElementException e) {
             this.logger.error(e);
         }

         /* partialLinkText */
         try {
             this.webdriver.findElement(By.partialLinkText(locator));
             exist = true;
             return exist;
         } catch (NoSuchElementException e) {
             this.logger.error(e);
         }

         /* tagName */
         try {
             this.webdriver.findElement(By.tagName(locator));
             exist = true;
             return exist;
         } catch (NoSuchElementException e) {
             this.logger.error(e);
         }

         return exist;
     }

     /**
      * Verify the element exist or not(ID, name, cssSelector, xpath, linkText, className, partialLinkText, tagName)
      *
      * @author Aaron.ffp
      * @version V1.0.0: autoUISelenium main.java.aaron.sele.demo IsWebelementExist.java isElementExist, 2015-1-22 3:13:34 Exp $
      *
      * @param webdriver   : WebDriver
      * @param locator     : (ID, name, cssSelector, xpath, linkText, className, partialLinkText, tagName)
      *
      * @return boolean
      */
     public boolean isElementExist(WebDriver webdriver, String locator){
         boolean exist = false;

         /* ID */
         try {
             webdriver.findElement(By.id(locator));
             exist = true;
             return exist;
         } catch (NoSuchElementException e) {
             this.logger.error(e);
         }

         /* name */
         try {
             webdriver.findElement(By.name(locator));
             exist = true;
             return exist;
         } catch (NoSuchElementException e) {
             this.logger.error(e);
         }

         /* cssSelector */
         try {
             webdriver.findElement(By.cssSelector(locator));
             exist = true;
             return exist;
         } catch (NoSuchElementException e) {
             this.logger.error(e);
         }

         /* xpath */
         try {
             webdriver.findElement(By.xpath(locator));
             exist = true;
             return exist;
         } catch (NoSuchElementException e) {
             this.logger.error(e);
         }

         /* linkText */
         try {
             webdriver.findElement(By.linkText(locator));
             exist = true;
             return exist;
         } catch (NoSuchElementException e) {
             this.logger.error(e);
         }

         /* className */
         try {
             webdriver.findElement(By.className(locator));
             exist = true;
             return exist;
         } catch (NoSuchElementException e) {
             this.logger.error(e);
         }

         /* partialLinkText */
         try {
             webdriver.findElement(By.partialLinkText(locator));
             exist = true;
             return exist;
         } catch (NoSuchElementException e) {
             this.logger.error(e);
         }

         /* tagName */
         try {
             webdriver.findElement(By.tagName(locator));
             exist = true;
             return exist;
         } catch (NoSuchElementException e) {
             this.logger.error(e);
         }

         return exist;
     }

     /**
      * @function Verify the element exist or not
      *
      * @author Aaron.ffp
      * @version V1.0.0: autoUISelenium main.java.aaron.sele.core SeleniumCore.java isElementExistByXpath, 2014-11-23 4:03:52 Exp $
      *
      * @param webdriver : WebDriver
      * @param locator   : XPath
      *
      * @return boolean
      */
     public boolean isElementExistByXpath(WebDriver webdriver, String locator){
         boolean isExists = false;

         try {
             webdriver.findElement(By.xpath(locator));
             isExists = true;
         } catch (NoSuchElementException nsee) {
             this.logger.error(nsee);
             nsee.printStackTrace();
         }

         return isExists;
     }

     /**
      * @function Verify the element exist or not
      *
      * @author Aaron.ffp
      * @version V1.0.0: autoUISelenium main.java.aaron.sele.core SeleniumCore.java isWebelementExistByXpath, 2014-11-23 4:03:52 Exp $
      *
      * @param locator : XPath
      * @return boolean
      */
     public boolean isElementExistByXpath(String locator){
         boolean isExists = false;

         try {
             this.webdriver.findElement(By.xpath(locator));
             isExists = true;
         } catch (NoSuchElementException nsee) {
             this.logger.error(nsee);
             nsee.printStackTrace();
         }

         return isExists;
     }

PS：当元素不可用或者隐藏式，返回的也是不存在，请知悉！

至此，WebUI 自动化功能测试脚本第 027-判断元素是否存在 顺利完结，希望此文能够给初学 Selenium 的您一份参考。

最后，非常感谢亲的驻足，希望此文能对亲有所帮助。热烈欢迎亲一起探讨，共同进步。非常感谢！ ^_^