当单击按钮代码时，需要在新选项卡上打开输出

<a href="输出的链接" target="_blank">按钮</a>

import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@RestController
public class MyController {
    @GetMapping("/open-new-tab")
    public void openNewTab(HttpServletResponse response) throws IOException {
        String url = "输出的链接";
        response.setContentType("text/html");
        response.getWriter().println("<script>window.open('" + url + "', '_blank');</script>");
    }
}

from flask import Flask, render_template
import webbrowser

app = Flask(__name__)

@app.route('/open-new-tab')
def open_new_tab():
    url = "输出的链接"
    webbrowser.open_new_tab(url)
    return render_template('index.html')

if __name__ == '__main__':
    app.run()

import org.openqa.selenium.By;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.chrome.ChromeDriver;

public class MyTest {
    public static void main(String[] args) {
        System.setProperty("webdriver.chrome.driver", "path/to/chromedriver");
        WebDriver driver = new ChromeDriver();
        
        driver.get("页面的URL");
        
        WebElement button = driver.findElement(By.id("按钮的ID"));
        button.click();
        
        String outputURL = "输出的链接";
        String script = "window.open('" + outputURL + "', '_blank')";
        ((JavascriptExecutor) driver).executeScript(script);
        
        driver.quit();
    }
}