我正在尝试使用Selenium将SQL代码输入到“代码镜像”文本框中。针对此问题,我将使用http://www.gudusoft.com/sqlflow/#/网站作为示例。
我的问题:
如果代码包含回车符或换行符,则无法将MSSQL SQL代码提交到代码文本框中。
作为一种变通方法,在使用JavaScript函数将其写入文本框之前,我将删除所有这些控件,但是最终结果是非常难看的单词包装SQL。
我也尝试过在Selenium webElement对象上使用SendKeys方法将代码发送到文本框中,但是我不确定要“查找”哪个元素。使用SendKeys要求选择文本框,并且当我尝试在该对象上调用Click“和” SendKeys“方法时,我经常会收到一个错误,指出该元素不允许用户交互。
如果我能够始终如一地找到可以与之交互的元素(例如TextArea),那么我将尝试将剪贴板中的内容粘贴到其中,而不是将大量的击键发送到文本框。例如,以下内容通常给我“无法与该对象进行交互”的错误,但有时会起作用,具体取决于文本框的当前内容。
Clipboard.SetText(sql);
var txtbx = codeMirror.FindElement(By.CssSelector("textarea"));
txtbx.Click();
txtbx.SendKeys(OpenQA.Selenium.Keys.Control + "v");
我在想,设置文本的最佳机会是使用Execute脚本方法在CodeMirror对象上执行setValue JavaScript方法,如下所示。再次,如果SQL没有CR/LF字符,这是可行的,但是如何更改代码以允许这些字符呢?我已经看到很多关于此的文章,但是我的JavaScript知识可能不足以使我达到最终结果。我希望有人可以使用以下代码重构一个有效的示例。这是相对简短的说明。
创建一个C#项目(控制台应用程序,winForms等),并添加以下3个Nuget程序包:
Selenium.Chrome.WebDriver
Selenium.WebDriver
Selenium.WebDriver.ChromeDriver
创建一个类“SeleniumHelperGudusoft”,并粘贴以下代码:using OpenQA.Selenium;
using OpenQA.Selenium.Chrome;
namespace SqlSmoke.Classes
{
public class SeleniumHelperGudusoft
{
private IWebDriver driver;
public SeleniumHelperGudusoft()
{
var chromeDriverService = ChromeDriverService.CreateDefaultService();
chromeDriverService.HideCommandPromptWindow = false;
ChromeOptions options = new ChromeOptions();
options.AddAdditionalCapability("useAutomationExtension", false);
this.driver = new ChromeDriver(chromeDriverService, options);
}
public void NavigateToMain()
{
driver.Url = @"http://www.gudusoft.com/sqlflow/#/";
}
public void SetLanguageToMsSql()
{
string languageButtoncssSelector = "#Root > div > div.Main > div > div.Route.Row.x-start.y-stretch > div.SQLFlowEditor > div.SQLFlowEditorOperations.Row.x-start.y-center > div.DbVendor > div > div > svg";
var languageButton = driver.FindElement(By.CssSelector(languageButtoncssSelector));
languageButton.Click();
string msSqlCssSelector = "#Root > div > div.Main > div > div.Route.Row.x-start.y-stretch > div.SQLFlowEditor > div.SQLFlowEditorOperations.Row.x-start.y-center > div.DbVendor > ul > li:nth-child(10)";
var msSql = driver.FindElement(By.CssSelector(msSqlCssSelector));
msSql.Click();
}
public void SetSqlText(string sql)
{
IJavaScriptExecutor js = (IJavaScriptExecutor)driver;
var codeMirror = driver.FindElement(By.ClassName("CodeMirror"));
js.ExecuteScript("arguments[0].CodeMirror.setValue(\"" + sql + "\");", codeMirror); //<<<<----Fails here with the error message shown below in my post
}
public void ClickVisualizeButton()
{
string buttonCssSelector = "#Visualize > div";
var button = driver.FindElement(By.CssSelector(buttonCssSelector));
button.Click();
}
}
}
练习上述类中的代码,尝试粘贴两种不同的SQL,一种不带换行符,另一种不带换行符。string sql;
var lineageHelper = new SeleniumHelperGudusoft();
lineageHelper.NavigateToMain();
lineageHelper.SetLanguageToMsSql();
sql = "SELECT COL1, nCOL2 FROM TABLE1"; //all on one line works
lineageHelper.SetSqlText(sql);
lineageHelper.ClickVisualizeButton();
sql = "SELECT COL1, \r\nCOL2 FROM TABLE1";
lineageHelper.SetSqlText(sql); //<<<----- Fails here with the following error message
lineageHelper.ClickVisualizeButton();
在该行的第二次调用SetSqlText方法时,出现以下错误:js.ExecuteScript("arguments[0].CodeMirror.setValue(\"" + sql + "\");", codeMirror);
Message "javascript error: Invalid or unexpected token\n (Session info: chrome=84.0.4147.105)" string
如何修改示例以使第二个查询输入到CodeMirror文本框中?更新
可以在这里找到代码镜像文档:
https://codemirror.net/doc/manual.html
这是错误的完整调用堆栈:
OpenQA.Selenium.WebDriverException
HResult=0x80131500
Message=javascript error: Invalid or unexpected token
(Session info: chrome=84.0.4147.105)
Source=WebDriver
StackTrace:
at OpenQA.Selenium.Remote.RemoteWebDriver.UnpackAndThrowOnError(Response errorResponse)
at OpenQA.Selenium.Remote.RemoteWebDriver.Execute(String driverCommandToExecute, Dictionary`2 parameters)
at OpenQA.Selenium.Remote.RemoteWebDriver.ExecuteScriptCommand(String script, String commandName, Object[] args)
at OpenQA.Selenium.Remote.RemoteWebDriver.ExecuteScript(String script, Object[] args)
at MyNAME.Selenium.SeleniumHelperGudusoft.SetSqlText(String sql) in C:\Users\MYLANID\Desktop\SqlSmoke Code\MyNAME.Selenium\SeleniumHelper.cs:line 41
at MyNAME.Selenium.Form1.button3_Click(Object sender, EventArgs e) in C:\Users\MYLANID\Desktop\SqlSmoke Code\MyNAME.Selenium\Form1.cs:line 201
at System.Windows.Forms.Control.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ButtonBase.WndProc(Message& m)
at System.Windows.Forms.Button.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.DebuggableCallback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.Run(Form mainForm)
at MyNAME.Selenium.Program.Main() in C:\Users\MYLANID\Desktop\SqlSmoke Code\MyNAME.Selenium\Program.cs:line 19
最佳答案
在JavaScript中设置值时,您可能需要重新转义回车符和换行符:
var sql = @"SELECT foo
FROM bar";
var jsString = sql.Replace("\r", "\\r")
.Replace("\n", "\\n");
js.ExecuteScript("arguments[0].CodeMirror.setValue(\"" + jsString + "\");", codeMirror);
产生的JavaScript行将为:arguments[0].CodeMirror.setValue("SELECT foo\n\rFROM bar")
请注意,SQL字符串中的所有双引号也将需要转义,以免它们过早地结束JavaScript字符串:var sql = @"SELECT foo AS '"bar"'
FROM baz";
var jsString = sql.Replace("\r", "\\r")
.Replace("\n", "\\n")
.Replace("\"", "\\\"");
js.ExecuteScript("arguments[0].CodeMirror.setValue(\"" + jsString + "\");", codeMirror);
因此,产生的JavaScript为:arguments[0].CodeMirror.setValue("SELECT foo AS '\"bar\"'\n\rFROM baz");
关于c# - 使用C#和Selenium在网页的代码镜像文本框中输入多行SQL文本,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/63381962/