java擷取使用者登入ip、浏覽器資訊、SessionId

1、擷取使用者登入ip

//擷取使用者登入ip;
String loginIp = request.getHeader("X-Forwarded-For");
if (loginIp == null || loginIp.length() == 0 || "unknown".equalsIgnoreCase(loginIp)) {
    loginIp = request.getHeader("X-Real-IP");
}
if (loginIp == null || loginIp.length() == 0 || "unknown".equalsIgnoreCase(loginIp)) {
    loginIp = request.getHeader("Proxy-Client-IP");
}
if (loginIp == null || loginIp.length() == 0 || "unknown".equalsIgnoreCase(loginIp)) {
    loginIp = request.getHeader("WL-Proxy-Client-IP");
}
if (loginIp == null || loginIp.length() == 0 || "unknown".equalsIgnoreCase(loginIp)) {
    loginIp = request.getHeader("HTTP_CLIENT_IP");
}
if (loginIp == null || loginIp.length() == 0 || "unknown".equalsIgnoreCase(loginIp)) {
    loginIp = request.getRemoteAddr();
}
           

2、擷取使用者所使用的浏覽器資訊

/**
*擷取浏覽器資訊;
*/
String ua = request.getHeader("User-Agent");
//轉成UserAgent對象
UserAgent userAgent = UserAgent.parseUserAgentString(ua); 
Browser browser = userAgent.getBrowser();
String browserInfo=browser.toString();//浏覽器名
           

3、擷取使用者SessionId

request.getSession().getId();