我在这个页面上要求分析16个不同的行，这些行是自动生成的。我想在每一行中插入分数。如果我只在1行下运行代码（即没有for循环），它工作正常。但是当我运行它超过1行时，它根本不起作用。
在代码中，在for循环中，第一个cssSelector用于按钮。通过点击它将要求两个测试的分数，然后使用保存按钮。
我使用for循环的变量i和第一个cssSelector来改变行。
主要代码：
import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.support.ui.ExpectedConditions;
import org.openqa.selenium.support.ui.Select;
import org.openqa.selenium.support.ui.WebDriverWait;
/**
* @author KARAN
* MYRACECONTROL
*/
public class mrc {
/**
* @param args
* @throws InterruptedException
*/
public static void main(String[] args) throws InterruptedException {
int max = 100;
int min = 0;
int rndm = 0;
String rdm;
WebElement edit_button;
System.out.flush();
//Create firefoxDriver Object.
System.setProperty("webdriver.gecko.driver", "C:\\eclipse\\geckodriver.exe");
WebDriver driver=new FirefoxDriver();
WebDriverWait w = new WebDriverWait(driver, 10);
// LOGIN
driver.get("http://ec2####-west-2.compute.amazonaws.com/login");
driver.findElement(By.xpath("/html/body/div[3]/div[1]/div[2]/div/form/div[2]/div/input")).sendKeys("admin@admin.com");
driver.findElement(By.xpath("/html/body/div[3]/div[1]/div[2]/div/form/div[3]/div/input")).sendKeys("admin");
edit_button = w.until(ExpectedConditions.elementToBeClickable(By.xpath("/html/body/div[3]/div[1]/div[2]/div/form/button[1]")));
edit_button.click();
// JUDGEPANEL
// Navigate to judge panel
driver.navigate().to("http://ec2####-west-2.compute.amazonaws.com/judgepanel");
// select event
Select drpdwn = new Select(driver.findElement(By.id("selector")));
drpdwn.selectByValue("70");
driver.findElement(By.xpath("/html/body/div[3]/div[2]/div[2]/div[1]/div/div[4]/div[2]/button")).click();
// enter scores
for (int i=1; i<=16; i++) {
//edit_button = w.until(ExpectedConditions.elementToBeClickable(By.cssSelector("#entranceList > div:nth-child("+(i+1)+") > div:nth-child(1) > div:nth-child(1) > div:nth-child(4) > button:nth-child(1)")));
//edit_button.click();
driver.findElement(By.cssSelector("#entranceList > div:nth-child("+(i+1)+") > div:nth-child(1) > div:nth-child(1) > div:nth-child(4) > button:nth-child(1)")).click();
System.out.println("Button "+ (i+1) +" Pressed");
rndm = (int)(Math.random()*((max-min)+1));
System.out.println(rndm);
rdm = String.valueOf(rndm);
System.out.println(rdm);
driver.findElement(By.xpath("//*[@id=\"modalSlideUp\"]/div/div/div/div[2]/div/div[1]/input")).sendKeys(rdm);
rndm = (int)(Math.random()*((max-min)+1));
System.out.println(rndm);
rdm = String.valueOf(rndm);
System.out.println(rdm);
driver.findElement(By.xpath("//*[@id=\"modalSlideUp\"]/div/div/div/div[2]/div/div[2]/input")).sendKeys(rdm);
driver.findElement(By.xpath("//*[@id=\"modalSlideUp\"]/div/div/div/div[2]/div/div[3]/button")).click();
System.out.println("Save Button "+ (i+1) +" Pressed");
Thread.sleep(10);
}
}
}
错误：
1525848260543 geckodriver INFO geckodriver 0.20.1
1525848260563 geckodriver INFO Listening on 127.0.0.1:4627
1525848261468 mozrunner::runner INFO Running command: "C:\\Program Files\\Firefox Developer Edition\\firefox.exe" "-marionette" "-profile" "C:\\Users\\karan\\AppData\\Local\\Temp\\rust_mozprofile.r5X2ICjOSWCR"
Unable to read VR Path Registry from C:\Users\karan\AppData\Local\openvr\openvrpaths.vrpath
Unable to read VR Path Registry from C:\Users\karan\AppData\Local\openvr\openvrpaths.vrpath
Unable to read VR Path Registry from C:\Users\karan\AppData\Local\openvr\openvrpaths.vrpath
Unable to read VR Path Registry from C:\Users\karan\AppData\Local\openvr\openvrpaths.vrpath
Unable to read VR Path Registry from C:\Users\karan\AppData\Local\openvr\openvrpaths.vrpath
1525848268080 Marionette INFO Listening on port 50000
1525848268827 Marionette WARN TLS certificate errors will be ignored for this session
May 09, 2018 12:14:29 PM org.openqa.selenium.remote.ProtocolHandshake createSession
INFO: Detected dialect: W3C
JavaScript warning: http://cdnjs.cloudflare.com/ajax/libs/jquery/2.0.2/jquery.min.js, line 1: Using //@ to indicate sourceMappingURL pragmas is deprecated. Use //# instead
JavaScript warning: http://cdnjs.cloudflare.com/ajax/libs/jquery/2.0.2/jquery.min.js, line 1: Using //@ to indicate sourceMappingURL pragmas is deprecated. Use //# instead
Exception in thread "main" org.openqa.selenium.NoSuchElementException: Unable to locate element: #entranceList > div:nth-child(2) > div:nth-child(1) > div:nth-child(1) > div:nth-child(4) > button:nth-child(1)
For documentation on this error, please visit: http://seleniumhq.org/exceptions/no_such_element.html
Build info: version: '3.11.0', revision: 'e59cfb3', time: '2018-03-11T20:33:08.638Z'
System info: host: 'KARAN-VAIO', ip: '192.168.1.8', os.name: 'Windows 10', os.arch: 'amd64', os.version: '10.0', java.version: '10'
Driver info: org.openqa.selenium.firefox.FirefoxDriver
Capabilities {acceptInsecureCerts: true, browserName: firefox, browserVersion: 61.0, javascriptEnabled: true, moz:accessibilityChecks: false, moz:headless: false, moz:processID: 6740, moz:profile: C:\Users\karan\AppData\Loca..., moz:useNonSpecCompliantPointerOrigin: false, moz:webdriverClick: true, pageLoadStrategy: normal, platform: XP, platformName: XP, platformVersion: 10.0, rotatable: false, timeouts: {implicit: 0, pageLoad: 300000, script: 30000}}
Session ID: 843fa034-f2ad-40ea-a73c-b43a3f9cfebd
*** Element info: {Using=css selector, value=#entranceList > div:nth-child(2) > div:nth-child(1) > div:nth-child(1) > div:nth-child(4) > button:nth-child(1)}
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.base/java.lang.reflect.Constructor.newInstance(Unknown Source)
at org.openqa.selenium.remote.http.W3CHttpResponseCodec.createException(W3CHttpResponseCodec.java:187)
at org.openqa.selenium.remote.http.W3CHttpResponseCodec.decode(W3CHttpResponseCodec.java:122)
at org.openqa.selenium.remote.http.W3CHttpResponseCodec.decode(W3CHttpResponseCodec.java:49)
at org.openqa.selenium.remote.HttpCommandExecutor.execute(HttpCommandExecutor.java:158)
at org.openqa.selenium.remote.service.DriverCommandExecutor.execute(DriverCommandExecutor.java:83)
at org.openqa.selenium.remote.RemoteWebDriver.execute(RemoteWebDriver.java:545)
at org.openqa.selenium.remote.RemoteWebDriver.findElement(RemoteWebDriver.java:319)
at org.openqa.selenium.remote.RemoteWebDriver.findElementByCssSelector(RemoteWebDriver.java:413)
at org.openqa.selenium.By$ByCssSelector.findElement(By.java:430)
at org.openqa.selenium.remote.RemoteWebDriver.findElement(RemoteWebDriver.java:311)
at mrc.main(mrc.java:71)
示例HTML代码：
<!-- 1st ROW -->
<div ng-if="!isLocked && !Userlock" class="row ng-scope" ng-repeat="entrance in entranceList">
<div class="col-xs-12 col-sm-12">
<div class="row">
<div class="col-xs-12 col-sm-3 ng-binding">
Roma G
</div>
<div class="col-xs-12 col-sm-3">
<!-- run1 <input type="number" placeholder="Run 1 score" ng-model=entrance.run1> -->
run1 <b><span ng-bind="entrance.run1" class="ng-binding"></span></b>
</div>
<div class="col-xs-12 col-sm-3">
<!-- run2 <input type="number" placeholder="Run 2 score" ng-model=entrance.run2> -->
run2 <b><span ng-bind="entrance.run2" class="ng-binding"></span></b>
</div>
<div class="col-xs-12 col-sm-3">
<!-- <button class="button" ng-click=saveEntraceScore(entrance)> Save</button> -->
<button id="disablerun" class="btn btn-primary" ng-click="EditEntraceScore(entrance)"> Edit
<!-- <div ng-if="isbattleTree === true" class="">
<i class="fa fa-lock"></i>
</div> -->
</button>
</div>
</div>
<hr>
<div class="col-xs-12 col-sm-6">
</div>
</div>
</div>
<!-- 2nd ROW -->
<div ng-if="!isLocked && !Userlock" class="row ng-scope" ng-repeat="entrance in entranceList">
<div class="col-xs-12 col-sm-12">
<div class="row">
<div class="col-xs-12 col-sm-3 ng-binding">
Jenna M
</div>
<div class="col-xs-12 col-sm-3">
<!-- run1 <input type="number" placeholder="Run 1 score" ng-model=entrance.run1> -->
run1 <b><span ng-bind="entrance.run1" class="ng-binding"></span></b>
</div>
<div class="col-xs-12 col-sm-3">
<!-- run2 <input type="number" placeholder="Run 2 score" ng-model=entrance.run2> -->
run2 <b><span ng-bind="entrance.run2" class="ng-binding"></span></b>
</div>
<div class="col-xs-12 col-sm-3">
<!-- <button class="button" ng-click=saveEntraceScore(entrance)> Save</button> -->
<button id="disablerun" class="btn btn-primary" ng-click="EditEntraceScore(entrance)"> Edit
<!-- <div ng-if="isbattleTree === true" class="">
<i class="fa fa-lock"></i>
</div> -->
</button>
</div>
</div>
<hr>
<div class="col-xs-12 col-sm-6">
</div>
</div>
</div>
等其他行...
这有什么简单的解决方案吗？
答案 0 :(得分：0)
似乎你得到的错误是因为你的选择器无效。在你选择的内部你写（i + 1）并期望它被计算。然而，＆＃34;＆＃34;被视为文字字符串，因此您的变量没有任何内容。您可以通过字符串连接来解决此问题，例如"div:nth-child(" + (i+1) + ")"（作为简要示例）。或者您可以使用String.format，例如String selector = String.format("div:nth-child(%d)", i+1);
答案 1 :(得分：0)
尝试使用此选项代替CSS选择器 driver.findElement（By.xpath（ “HTML /体/格[3] / DIV [2] / DIV [2] / DIV [1] / DIV / DIV [5] /格[” + I +“] / DIV / DIV [1] / DIV [4] /键“））点击（）;