Java下载文本文件的结果是HTML代码而不是文本

Question

当我使用apache commons-io下载此文本文件asdf.txt时 ：

URL fileURL = new URL(urlMatcher.group(1)); FileUtils.copyURLToFile(fileURL, new File(fileName));

它导致网页的html代码而不是

我是asdf文本文件！

它应该返回。

将URL打印为字符串可得到以下结果：

https://alm.automic.com/jama/attachment/542/asdf.txt

请帮我找出登录所需的POST请求的Java代码

主机= alm.automic.com

User-Agent = Mozilla / 5.0（Windows NT 6.1; WOW64; rv：39.0）Gecko / 20100101 Firefox / 39.0

Accept = text / html，application / xhtml + xml，application / xml; q = 0.9， / ; q = 0.8

Accept-Language = zh-CN，en; q = 0.5

Accept-Encoding = gzip，放气

引荐来源网址 = https://alm.automic.com/jama/login.req

Cookie = JSESSIONID = CA14239217D0E54E913D17083F71724F; DWRSESSIONID = 8nCO $ BHWFA2282XF4fVYnmwl7Wk; jamaContourServerTime = 1436778397165; jamaContourSessionExpiry = 1436778397165

连接=保持活动

Content-Type =应用程序/ x-www-form-urlencoded

内容长度= 53

POSTDATA = j_username = user＆j_password = pass＆submit =登录

请帮助，在此先感谢！

Answer 1

找到了如何进行http连接（如果有人需要）：使用以下类和类似Temper Data（Firefox插件）的内容来查找GET / POST请求标头/数据，并以类似以下方式将其添加到以下类中。

ArrayList<String> cookies = new ArrayList<String>(1);
        HttpClient httpclient = HttpClients.createDefault();
        HttpGet httpGet = new HttpGet(link);

        // Request parameters and other properties.
        List<NameValuePair> params = new ArrayList<NameValuePair>(2);
        httpGet.addHeader("Host", "alm.automic.com");
        httpGet.addHeader("User-Agent",
                "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:39.0) Gecko/20100101 Firefox/39.0");
        httpGet.addHeader("Accept",
                "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8");
        httpGet.addHeader("Accept-Language", "en-US,en;q=0.5");
        httpGet.addHeader("Accept-Encoding", "gzip, deflate");
        if (cookies.size() > 1)
            httpGet.addHeader("Cookie",
                    cookies.get(cookies.size() - 1).split(";")[0]);
        httpGet.addHeader("Connection", "keep-alive");

        // Execute and get the response.
        HttpResponse response = httpclient.execute(httpGet);
        Header[] responseHeaders = response.getAllHeaders();
        String location = "https://alm.automic.com/jama/login.req;";

        for (int i = 0; i < responseHeaders.length; i++)
        {
            if (responseHeaders[i].getName().equals("Set-Cookie"))
            {
                if (responseHeaders[i].getValue().split(";")[0].split("=")[0]
                        .equals("JSESSIONID"))
                    cookies.add(responseHeaders[i].getValue());
            }
            if (responseHeaders[i].getName().equals("Location"))
            {
                location = responseHeaders[i].getValue();
            }
        }