Question

我有这个输入字符串

Click ##$#here||action1#$## to do action A
and Click ##$#here||action2#$## to do action B 
and Click ##$#here||action3#$## to do action C

我需要输出strnig为

Click here to do action A
and Click here to do action B
and Click here to do action C

## $＃here || action1＃$ ##是一个操作码模式，“here”是替换整个操作码模式的replacement_string，“action 1”是用户点击时必须执行的底层操作“here”字符串（Hyper Link）

受审

String msg =Click ##$#here||action1#$## to do action A
and Click ##$#here||action2#$## to do action B 
and Click ##$#here||action3#$## to do action C;

String pattern1 = "##$#", pattern2 = "#$##";

String regexString = Pattern.quote(pattern1) + "(.*?)" + Pattern.quote(pattern2);
Pattern pattern = Pattern.compile(regexString);
Matcher matcher = pattern.matcher(msg);

while (matcher.find()) {
    String action = matcher.group(1);
    final String replaceAction[] = action.split("\\|\\|");
    String display = msg.replace(pattern1 + action + pattern2, replaceAction[0]);

    SpannableString ss = new SpannableString(display);
    ClickableSpan clickableSpan = new ClickableSpan() {
        @Override
        public void onClick(View textView) {
            Log.e("CLICKED", "CLICKED");
            Log.e("Action Intent", replaceAction[1]);
        }

        @Override
        public void updateDrawState(TextPaint ds) {
            super.updateDrawState(ds);
            ds.setUnderlineText(true);
        }
    };

    ss.setSpan(clickableSpan, display.indexOf(replaceAction[0]),
            display.indexOf(replaceAction[0]) + replaceAction[0].length(),
            Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
    testTV.append(ss);
    testTV.setMovementMethod(LinkMovementMethod.getInstance());
}

以上代码使用

字符串设置testTV

Click here to do action A
and Click ##$#here||action2#$## to do action B 
and Click ##$#here||action3#$## to do action C

Click ##$#here||action1#$## to do action A
and Click here to do action B 
and Click ##$#here||action3#$## to do action C

Click ##$#here||action1#$## to do action A
and Click ##$#here||action2#$## to do action B 
and Click here to do action C

任何帮助或想法都将受到强烈赞赏！

Answer 1

以下正则表达式将会这样做：

##\$#(.*?)\|\|action\d+#\$##

您可以使用replaceAll()方法，如下所示：

str.replaceAll("##\\$#(.*?)\\|\\|action\\d+#\\$##", "$1")

请参阅此regex101 demo。

<强>更新

问题是，您要在msg的每次迭代中将整个textTV附加到find()。你需要逐步建立起来。

这样的事情：

Pattern p = Pattern.compile("##\\$#(.*?)\\|\\|(.*?)#\\$##");
Matcher m = p.matcher(msg);
int prevEnd;
for (prevEnd = 0; m.find(); prevEnd = m.end()) {
    String plainText = msg.substring(prevEnd, m.start());
    String linkText = m.group(1);
    String action = m.group(2);

    SpannableString ss = new SpannableString(plainText + linkText);
    ClickableSpan clickableSpan = new ClickableSpan() {
        // code here
    };
    ss.setSpan(clickableSpan, plainText.length(), ss.length(),
               Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
    testTV.append(ss);
    testTV.setMovementMethod(LinkMovementMethod.getInstance());
}
if (prevEnd < msg.length()) {
    testTV.append(msg.substring(prevEnd));
}

Answer 2

您可以尝试在语句后面的字符串msg中分配更新的值，如package javaselenium; import java.util.*; import java.util.concurrent.TimeUnit; import java.util.logging.Level; import java.util.logging.Logger; import org.openqa.selenium.By; import org.openqa.selenium.Keys; import org.openqa.selenium.WebElement; import org.openqa.selenium.firefox.FirefoxDriver; /** * * @author Muhammad USman */ public class JavaSelenium { /** * @param args the command line arguments */ public static void main(String[] args) { // TODO code application logic here System.out.println("Hello Wrold"); GetUrls("Selenium"); } public static ArrayList GetUrls(String keyWord) { FirefoxDriver driver; driver = new FirefoxDriver(); driver.manage().timeouts().implicitlyWait(10,TimeUnit.SECONDS); driver.get("https://www.google.com/?gws_rd=ssl"); WebElement qElement; qElement = driver.findElement(By.name("q")); qElement.sendKeys(keyWord); qElement.sendKeys(Keys.ENTER); try { Thread.sleep(3*1000); } catch (InterruptedException ex) { Logger.getLogger(JavaSelenium.class.getName()).log(Level.SEVERE, null, ex); } //give number how mange pages you want to crawl int nPageToCrawl=5; List links; links=new ArrayList(); for (int i = 0; i < nPageToCrawl; i++) { if(i>0) { System.out.println("***Click on Next Page***"); //Click on Next Page driver.findElement(By.id("pnnext")).click(); try { Thread.sleep(3*1000); } catch (InterruptedException ex) { Logger.getLogger(JavaSelenium.class.getName()).log(Level.SEVERE, null, ex); } } //it will get all links of pageLinks List<WebElement> pageLinks = driver.findElements(By.cssSelector(".r>a")); for (WebElement pageLink : pageLinks) { links.add(pageLink.getAttribute("href")); System.out.println(pageLink.getText()); System.out.println(pageLink.getAttribute("href")); } } //close browser driver.quit(); return (ArrayList) links; }，

msg = display;

Answer 3

经过一个小时的试验，我发现工作解决方案是

    String regexString = Pattern.quote(pattern1) + "(.*?)" + "\\|\\|" + "(.*?)" + Pattern.quote(pattern2);
    Pattern pattern = Pattern.compile(regexString);
    Matcher matcher = pattern.matcher(msg);

    while (matcher.find()) {
        String replace = matcher.group(1); //Replacement string
        String action = matcher.group(2);  //Action String

        msg = msg.replaceFirst(regexString, replace);
    }

Log.e ("Display Message", msg);

用于在java中匹配和拆分字符串的正则表达式模式

3 个答案: