HttpURLConnection -如何在setRequestProperty中发送标头

Question

我尝试使用Java代码在给定的URL中发送标题，如下所示：

URL u = new URL("http://domain:8081/App/mycall");
HttpURLConnection con= (HttpURLConnection) u.openConnection();
con.setRequestProperty("Accept", "application/json");
con.setRequestProperty("Auth-Token", authToken);
BufferedReader rd = new BufferedReader(new InputStreamReader(con.getInputStream()));

然后，在我的应用程序中，我检查Auth-Token，如下所示：

public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
    HttpServletRequest req = (HttpServletRequest) request;
    if (SecurityContextHolder.getContext().getAuthentication() != null) {
        String reqToken = req.getHeader("Auth-Token");
    }
}

当我在post man中用头调用上面的URL时，它工作得很好。但是当我在Java代码中运行这个URL时，SecurityContextHolder.getContext().getAuthentication()总是返回null。

我做错了什么？

Answer 1

在创建URL之前添加以下行解决了我的问题：

CookieHandler.setDefault(new CookieManager());

在给定的URL中发送报头现在看起来像这样，并且它可以工作：

CookieHandler.setDefault(new CookieManager());
URL u = new URL("http://domain:8081/App/mycall");
HttpURLConnection con= (HttpURLConnection) u.openConnection();
con.setRequestProperty("Accept", "application/json");
con.setRequestProperty("Auth-Token", authToken);
BufferedReader rd = new BufferedReader(new InputStreamReader(con.getInputStream()));