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！

  1     /**
  2      * Verify the element exist or not
  3      * 
  4      * @author Aaron.ffp
  5      * @version V1.0.0: autoUISelenium main.java.aaron.sele.demo IsWebelementExist.java isElementExist, 2015-1-22 3:13:34 Exp $
  6      * 
  7      * @param by : By
  8      * 
  9      * @return boolean
 10      */
 11     public boolean isElementExist(By by){
 12         boolean exist = false;
 13         
 14         try {
 15             this.webdriver.findElement(by);
 16             exist = true;
 17         } catch (NoSuchElementException e) {
 18             this.logger.error(e);
 19         }
 20         
 21         return exist;
 22     }
 23     
 24     /**
 25      * Verify the element exist or not(ID, name, cssSelector, xpath, linkText, className, partialLinkText, tagName)
 26      * 
 27      * @author Aaron.ffp
 28      * @version V1.0.0: autoUISelenium main.java.aaron.sele.demo IsWebelementExist.java isElementExist, 2015-1-22 3:13:34 Exp $
 29      * 
 30      * @param locator  : (ID, name, cssSelector, xpath, linkText, className, partialLinkText, tagName)
 31      * 
 32      * @return boolean
 33      */
 34     public boolean isElementExist(String locator){
 35         boolean exist = false;
 36         
 37         /* ID */
 38         try {
 39             this.webdriver.findElement(By.id(locator));
 40             exist = true;
 41             return exist;
 42         } catch (NoSuchElementException e) {
 43             this.logger.error(e);
 44         }
 45         
 46         /* name */
 47         try {
 48             this.webdriver.findElement(By.name(locator));
 49             exist = true;
 50             return exist;
 51         } catch (NoSuchElementException e) {
 52             this.logger.error(e);
 53         }
 54         
 55         /* cssSelector */
 56         try {
 57             this.webdriver.findElement(By.cssSelector(locator));
 58             exist = true;
 59             return exist;
 60         } catch (NoSuchElementException e) {
 61             this.logger.error(e);
 62         }
 63         
 64         /* Xpath */
 65         try {
 66             this.webdriver.findElement(By.xpath(locator));
 67             exist = true;
 68             return exist;
 69         } catch (NoSuchElementException e) {
 70             this.logger.error(e);
 71         }
 72         
 73         /* linkText */
 74         try {
 75             this.webdriver.findElement(By.linkText(locator));
 76             exist = true;
 77             return exist;
 78         } catch (NoSuchElementException e) {
 79             this.logger.error(e);
 80         }
 81         
 82         /* className */
 83         try {
 84             this.webdriver.findElement(By.className(locator));
 85             exist = true;
 86             return exist;
 87         } catch (NoSuchElementException e) {
 88             this.logger.error(e);
 89         }
 90         
 91         /* partialLinkText */
 92         try {
 93             this.webdriver.findElement(By.partialLinkText(locator));
 94             exist = true;
 95             return exist;
 96         } catch (NoSuchElementException e) {
 97             this.logger.error(e);
 98         }
 99         
100         /* tagName */
101         try {
102             this.webdriver.findElement(By.tagName(locator));
103             exist = true;
104             return exist;
105         } catch (NoSuchElementException e) {
106             this.logger.error(e);
107         }
108         
109         return exist;
110     }
111     
112     /**
113      * Verify the element exist or not(ID, name, cssSelector, xpath, linkText, className, partialLinkText, tagName)
114      * 
115      * @author Aaron.ffp
116      * @version V1.0.0: autoUISelenium main.java.aaron.sele.demo IsWebelementExist.java isElementExist, 2015-1-22 3:13:34 Exp $
117      * 
118      * @param webdriver   : WebDriver
119      * @param locator     : (ID, name, cssSelector, xpath, linkText, className, partialLinkText, tagName)
120      * 
121      * @return boolean
122      */
123     public boolean isElementExist(WebDriver webdriver, String locator){
124         boolean exist = false;
125         
126         /* ID */
127         try {
128             webdriver.findElement(By.id(locator));
129             exist = true;
130             return exist;
131         } catch (NoSuchElementException e) {
132             this.logger.error(e);
133         }
134         
135         /* name */
136         try {
137             webdriver.findElement(By.name(locator));
138             exist = true;
139             return exist;
140         } catch (NoSuchElementException e) {
141             this.logger.error(e);
142         }
143         
144         /* cssSelector */
145         try {
146             webdriver.findElement(By.cssSelector(locator));
147             exist = true;
148             return exist;
149         } catch (NoSuchElementException e) {
150             this.logger.error(e);
151         }
152         
153         /* xpath */
154         try {
155             webdriver.findElement(By.xpath(locator));
156             exist = true;
157             return exist;
158         } catch (NoSuchElementException e) {
159             this.logger.error(e);
160         }
161         
162         /* linkText */
163         try {
164             webdriver.findElement(By.linkText(locator));
165             exist = true;
166             return exist;
167         } catch (NoSuchElementException e) {
168             this.logger.error(e);
169         }
170         
171         /* className */
172         try {
173             webdriver.findElement(By.className(locator));
174             exist = true;
175             return exist;
176         } catch (NoSuchElementException e) {
177             this.logger.error(e);
178         }
179         
180         /* partialLinkText */
181         try {
182             webdriver.findElement(By.partialLinkText(locator));
183             exist = true;
184             return exist;
185         } catch (NoSuchElementException e) {
186             this.logger.error(e);
187         }
188         
189         /* tagName */
190         try {
191             webdriver.findElement(By.tagName(locator));
192             exist = true;
193             return exist;
194         } catch (NoSuchElementException e) {
195             this.logger.error(e);
196         }
197         
198         return exist;
199     }
200     
201     /**
202      * @function Verify the element exist or not
203      * 
204      * @author Aaron.ffp
205      * @version V1.0.0: autoUISelenium main.java.aaron.sele.core SeleniumCore.java isElementExistByXpath, 2014-11-23 4:03:52 Exp $
206      * 
207      * @param webdriver : WebDriver
208      * @param locator   : XPath
209      * 
210      * @return boolean
211      */
212     public boolean isElementExistByXpath(WebDriver webdriver, String locator){
213         boolean isExists = false;
214         
215         try {
216             webdriver.findElement(By.xpath(locator));
217             isExists = true;
218         } catch (NoSuchElementException nsee) {
219             this.logger.error(nsee);
220             nsee.printStackTrace();
221         }
222         
223         return isExists;
224     }
225     
226     /**
227      * @function Verify the element exist or not
228      * 
229      * @author Aaron.ffp
230      * @version V1.0.0: autoUISelenium main.java.aaron.sele.core SeleniumCore.java isWebelementExistByXpath, 2014-11-23 4:03:52 Exp $
231      * 
232      * @param locator : XPath
233      * @return boolean
234      */
235     public boolean isElementExistByXpath(String locator){
236         boolean isExists = false;
237         
238         try {
239             this.webdriver.findElement(By.xpath(locator));
240             isExists = true;
241         } catch (NoSuchElementException nsee) {
242             this.logger.error(nsee);
243             nsee.printStackTrace();
244         }
245         
246         return isExists;
247     }

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！ ^_^

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原文地址：https://www.cnblogs.com/fengpingfan/p/4699713.html