我有一个带有Java Applet的网站,该applet需要连接到我的服务器。 这适用于JApplets @Override init(),但不适用于我自己的javascript调用函数。
final URL url = new URL(SERVER_URL + action);
System.out.println("url:" + url);
System.out.println("postString: " + postString);
final HttpURLConnection connection = (HttpURLConnection) url.openConnection();
if(!postString.isEmpty()) {
connection.setRequestMethod("POST");
connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
connection.setRequestProperty("Content-Length", Integer.toString(postString.getBytes().length));
connection.setUseCaches(false);
connection.setDoInput(true);
connection.setDoOutput(true);
System.out.println("connecting...");
connection.connect(); // same with connection.getOutputStream();
System.out.println("connected");
....
网站:
<a href="javascript: document.applet.update();" title="update from server">Update</a>
<applet id="applet" archive="/public/Antucation-0.1.0.jar?random=3765332307555812156" code="de.antucation.controller.Controller.class" width="100%" height="800px">
<param name="colonyId" value="1">
</applet>
输出:
url:http://localhost:9000/applet/showCode
postString: colonyId=1
connecting...
我尝试使用System.out调用来捕获它,但也没有任何反应。 然而,这绝对是好的:
@Override
public void init() {
update();
}
哦,小程序当然也来自http://localhost:9000/
我该如何解决这个问题或修复它?
答案 0 :(得分:2)
尝试以下方面的内容:
public void callFromJavaScript(final String param) {
AccessController.doPrivileged( new PrivilegedAction<Void>() {
public Void run() {
// call code to make the connection..
return null;
}
});
}