取得地址栏完整请求信息

public static String getCompleteURL(HttpServletRequest request) {  
    return new StringBuilder(getCurrentHttpURL(request))  
        .append(request.getServletPath()).append("?")  
            .append(request.getQueryString()).toString();  
}  
 
/** 
* 取得当前http地址 
* @param request 
* @return 
* Date: 2008-12-1 下午02:59:03 
*/ 
public static String getCurrentHttpURL(HttpServletRequest request){  
      
    StringBuilder urlBuilder = new StringBuilder();  
    urlBuilder.append(request.getScheme()).append("://");  
    urlBuilder.append(request.getServerName());  
    urlBuilder.append(request.getHeader("host")).append(":");  
    urlBuilder.append(request.getServerPort());  
    urlBuilder.append(request.getContextPath()).append("/");  
      
    String httpAddr = urlBuilder.toString();  
    urlBuilder = null;  
    return httpAddr;  
} 

转自：http://sunxboy.iteye.com/blog/284976