HttpServletRequest完成URL [英] HttpServletRequest to complete URL

问题描述

我有一个 HttpServletRequest 对象。

如何获得导致此调用的完整且准确的URL到达我的servlet？

How do I get the complete and exact URL that caused this call to arrive at my servlet?

或者至少尽可能准确，因为有些东西可以重新生成（可能是参数的顺序）。

Or at least as accurately as possible, as there are perhaps things that can be regenerated (the order of the parameters, perhaps).

推荐答案

在 HttpServletRequest的 有以下方法：

The HttpServletRequest has the following methods:

'LI> getRequestURL（） - 在查询字符串分隔符之前返回完整URL的一部分？

• getQueryString（） - 返回p查询字符串分隔符后的完整URL的艺术？

• getRequestURL() - returns the part of the full URL before query string separator character ?
• getQueryString() - returns the part of the full URL after query string separator character ?

所以，到获得完整的URL，只是做：

So, to get the full URL, just do:

public static String getFullURL(HttpServletRequest request) {
    StringBuilder requestURL = new StringBuilder(request.getRequestURL().toString());
    String queryString = request.getQueryString();

    if (queryString == null) {
        return requestURL.toString();
    } else {
        return requestURL.append('?').append(queryString).toString();
    }
}

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