无法将密钥发送到div元素Selenium-Java

Question

您好，我尝试使用xpath将值填充到文本框（检查下面的图像）。

Actions actions = new Actions(driver);
                                        actions.moveToElement(driver.findElement(By.xpath("//*[@class='CzI8E']")));
                                        actions.click();
                                        Thread.sleep(3000);
                                        actions.moveToElement(driver.findElement(By.xpath("//*[@class='_2S1VP copyable-text selectable-text']")));//_2S1VP copyable-text selectable-text
                                        actions.sendKeys(WhatsappConstants.TEXT_MESSAGE);
                                        actions.build().perform();

但是我遇到了这个异常

org.openqa.selenium.WebDriverException: unknown error: ChromeDriver only supports characters in the BMP

其他stackoverflow回答说要使用firefox驱动程序，但就我而言，我只需要使用chrome。

Answer 1

这是Chromedriver的已知限制，请参见http://crbug.com/chromedriver/2269，以获取官方错误跟踪器中的错误报告。

您可以做的只是将自己限制为受支持的字符，基本上是来自http://www.columbia.edu/kermit/ucs2.html

的字符

或者，您可以模拟输入，而不用像下面这样的前端JS代码段真正发送键：

(function (element, text) {
    Array.prototype.forEach.call(text, function (char) {
        element.value += char;
        element.dispatchEvent(new KeyboardEvent("keydown"));
        element.dispatchEvent(new KeyboardEvent("keypress"));
        element.dispatchEvent(new KeyboardEvent("input"));
        element.dispatchEvent(new KeyboardEvent("keyup"));
    });
}).apply(null, arguments);

然后您使用JavascriptExecutor拨打电话：

((JavascriptExecutor) driver).executeScript(JS_CODE, element, text);

此代码段适用于具有可写.value属性的元素，可以扩展为支持contenteditable元素。

请注意，事件的字段设置为默认值，包括键码等，请参见https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent/KeyboardEvent。此外，您可能还必须添加要触发的其他事件，以更好地模拟用户输入。

Answer 2

我有一个类似的问题，我以这种方式解决了。 首先，您应该使用/* * A Seed Fill Algorithm * by Paul Heckbert * from "Graphics Gems", Academic Press, 1990 * * user provides pixelread() and pixelwrite() routines */ /* * fill.c : simple seed fill program * Calls pixelread() to read pixels, pixelwrite() to write pixels. * * Paul Heckbert 13 Sept 1982, 28 Jan 1987 */ typedef struct { /* window: a discrete 2-D rectangle */ int x0, y0; /* xmin and ymin */ int x1, y1; /* xmax and ymax (inclusive) */ } Window; typedef int Pixel; /* 1-channel frame buffer assumed */ Pixel pixelread(int x, int y); void pixelwrite(int x, int y, Pixel p); typedef struct {short y, xl, xr, dy;} Segment; /* * Filled horizontal segment of scanline y for xl<=x<=xr. * Parent segment was on line y-dy. dy=1 or -1 */ #define MAX 10000 /* max depth of stack */ #define PUSH(Y, XL, XR, DY) /* push new segment on stack */ \ if (sp<stack+MAX && Y+(DY)>=win->y0 && Y+(DY)<=win->y1) \ {sp->y = Y; sp->xl = XL; sp->xr = XR; sp->dy = DY; sp++;} #define POP(Y, XL, XR, DY) /* pop segment off stack */ \ {sp--; Y = sp->y+(DY = sp->dy); XL = sp->xl; XR = sp->xr;} /* * fill: set the pixel at (x,y) and all of its 4-connected neighbors * with the same pixel value to the new pixel value nv. * A 4-connected neighbor is a pixel above, below, left, or right of a pixel. */ void fill(x, y, win, nv) int x, y; /* seed point */ Window *win; /* screen window */ Pixel nv; /* new pixel value */ { int l, x1, x2, dy; Pixel ov; /* old pixel value */ Segment stack[MAX], *sp = stack; /* stack of filled segments */ ov = pixelread(x, y); /* read pv at seed point */ if (ov==nv || x<win->x0 || x>win->x1 || y<win->y0 || y>win->y1) return; PUSH(y, x, x, 1); /* needed in some cases */ PUSH(y+1, x, x, -1); /* seed segment (popped 1st) */ while (sp>stack) { /* pop segment off stack and fill a neighboring scan line */ POP(y, x1, x2, dy); /* * segment of scan line y-dy for x1<=x<=x2 was previously filled, * now explore adjacent pixels in scan line y */ for (x=x1; x>=win->x0 && pixelread(x, y)==ov; x--) pixelwrite(x, y, nv); if (x>=x1) goto skip; l = x+1; if (l<x1) PUSH(y, l, x1-1, -dy); /* leak on left? */ x = x1+1; do { for (; x<=win->x1 && pixelread(x, y)==ov; x++) pixelwrite(x, y, nv); PUSH(y, l, x-1, dy); if (x>x2+1) PUSH(y, x2+1, x-1, -dy); /* leak on right? */ skip: for (x++; x<=x2 && pixelread(x, y)!=ov; x++); l = x; } while (x<=x2); } } 向此div添加任何文本，然后清除此文本并使用硒的JavascriptExecutor 方法

sendKeys