Acegi(Spring Security)登录的处理。

Question

Spring Acegi提供了登录后置处理功能，这是通过ApplicationEvent事件触发的，我实现
该功能，但是无法获取用户IP，如何获取用户IP，麻烦那位指点一二。
代码大概如下所示：
public void onApplicationEvent(ApplicationEvent event) {

if (event instanceof AuthenticationSuccessEvent) {①判断是否是认证成功的事件

AuthenticationSuccessEvent authEvent = (AuthenticationSuccessEvent)event;

Authentication auth = authEvent.getAuthentication();

String userName = auth.getName();

②这里，我们仅通过一条输出信息的语句模拟记录登录日志的操作

System.out.println("模拟记录用户["+userName+"]成功登录日志...");

}

}

}

[b]问题补充：[/b]
我的代码如下：
public class LoginSuccessListener implements ApplicationListener {
public void onApplicationEvent(ApplicationEvent event) {
if (event instanceof AuthenticationSuccessEvent) {①判断是否是认证成功的事件
AuthenticationSuccessEvent authEvent = (AuthenticationSuccessEvent)event;
Authentication auth = authEvent.getAuthentication();
String userName = auth.getName();
②这里，我们仅通过一条输出信息的语句模拟记录登录日志的操作
System.out.println("模拟记录用户["+userName+"]成功登录日志...");
}
}
}

---

}
注意了是实现了ApplicationListener接口，你所说的：WebAuthenticationDetails WebDetail = (WebAuthenticationDetails) SecurityContextHolder
.getContext().getAuthentication().getDetails(); 取值为null.
[b]问题补充：[/b]
你看我糊涂的，ecurityContextHolder
.getContext().getAuthentication() 取值为null，那可以用authEvent.getAuthentication()去取

Answer 1

[b]WebAuthenticationDetails [/b]WebDetail = (WebAuthenticationDetails) SecurityContextHolder
.getContext().getAuthentication().getDetails();
logger.debug("IpAddress" + WebDetail.getRemoteAddress());
String webIp = WebDetail.getRemoteAddress();
String hostAddress = "";
try {
InetAddress localhost = InetAddress.getLocalHost();
hostAddress = localhost.getHostAddress();
} catch (Exception e) {
System.err.println(e.getMessage());
}