我们正在尝试构建一个jmeter测试用例，它执行以下操作:
- 登录系统
- 获取一些信息，检查是否正确。
我们面临的问题是因为在登录系统时有一个验证码。我们计划做的是下载验证码链接并显示，等待用户输入值。一旦完成，一切照常进行。
我们找不到任何插件可以做同样的?除了编写我们自己的插件，还有其他选择吗?
我自己解决了这个问题。解决方案如下:
- 创建JSR223 PostProcessor(使用Groovy)
- 使用JSESSIONID处理和代理设置的更实用的CAPTCHA示例
- 在对话框中使用image.flush()来防止过期的CAPTCHA图像
JSR223代理连接设置参数:
Parameters: proxy 10.0.0.1 8080
在其中，以下代码显示验证码并等待用户输入
import java.awt.Image;
import java.awt.Toolkit;
import javax.swing.Icon;
import javax.swing.JOptionPane;
import org.apache.jmeter.threads.JMeterContextService;
import org.apache.jmeter.threads.JMeterContext;
import org.apache.jmeter.protocol.http.control.CookieManager;
import org.apache.jmeter.protocol.http.control.Cookie;
URL urlTemp ;
urlTemp = new URL( "https://your.domainname.com/endpoint/CAPTCHACode");
HttpURLConnection myGetContent = null;
if(args[0]=="proxy" ){
Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress(args[1], Integer.parseInt(args[2])));
myGetContent = (HttpURLConnection) urlTemp.openConnection(proxy);
}else{
myGetContent = (HttpURLConnection) urlTemp.openConnection();
}
// false for http GET
myGetContent.setDoOutput(false);
myGetContent.connect();
int status = myGetContent.getResponseCode();
log.info("HTTP Status Code: "+Integer.toString(status));
if (status == HttpURLConnection.HTTP_OK) {
//We have 2 Set-Cookie headers in response message but 1 Set-Cookie entry in Map
String[] parts2;
for (Map.Entry<String, List<String>> entries : myGetContent.getHeaderFields().entrySet()) {
if( entries.getKey() == "Set-Cookie" ){
for (String value : entries.getValue()) {
if ( value.contains("JSESSIONID") == true ){
String[] parts = value.split(";",2);
log.info("Response header: "+ entries.getKey() + " - " + parts[0] );
JMeterContext context = JMeterContextService.getContext();
CookieManager manager = context.getCurrentSampler().getCookieManager();
parts2 = parts[0].split("=",2)
Cookie cookie = new Cookie("JSESSIONID",parts2[1],"your.domainname.com","/endpoint",true,0, true, true, 0);
manager.add(cookie);
log.info( cookie.toString() );
log.info("CookieCount "+ manager.getCookieCount().toString() );
}
}
}
}//end of outer for loop
if ( parts2.find() == null ) {
throw new Exception("The Response Header not contain Set-Cookie:JSESSIONID= .");
}
}else{
throw new Exception("The Http Status Code was ${status} , not expected 200 OK.");
}
BufferedInputStream bins = new BufferedInputStream(myGetContent.getInputStream());
String destFile = "number.png";
File f = new File(destFile);
if(f.exists() ) {
boolean fileDeleted = f.delete();
log.info("delete file ... ");
log.info(String.valueOf(fileDeleted));
}
FileOutputStream fout =new FileOutputStream(destFile);
int m = 0;
byte[] bytesIn = new byte[1024];
while ((m = bins.read(bytesIn)) != -1) {
fout.write(bytesIn, 0, m);
}
fout.close();
bins.close();
log.info("File " +destFile +" downloaded successfully");
Image image = Toolkit.getDefaultToolkit().getImage(destFile);
image.flush(); // release the prior cache of Captcha image
Icon icon = new javax.swing.ImageIcon(image);
JOptionPane pane = new JOptionPane("Enter Captcha", 0, 0, null);
String captcha = pane.showInputDialog(null, "Captcha", "Captcha", 0, icon, null, null);
captcha = captcha.trim();
captcha = captcha.replaceAll("rn", "");
log.info(captcha);
vars.put("captcha", captcha);
myGetContent.disconnect();
的var。Put方法，我们可以以任何我们想要的方式使用captcha变量。谢谢大家的帮助。
由于CAPTHA用于检测非人类，JMeter将总是失败。
你必须在你的软件中做一个解决方案:要么禁用captcha请求，要么在页面上正确打印captcha。当然，仅适用于JMeter测试。
肮脏的变通方法?在测试的所有图像中打印验证码值。然后你可以检索值然后继续