Tomcat-自定义会话Cookie处理

Question

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有人知道解决这个问题的办法吗？提前感谢！

迈克尔

Answer 1

解决方案是为应用程序创建两个单独的url模式。

使用@WebServlet:

@WebServlet(
    urlPatterns={"/app/customer1/servlet", "/app/customer2/servlet"})

或者，使用web.xml

<servlet>
    <servlet-name>MyApp</servlet-name>
    <servlet-class>myPackage.myClass</servlet-class>
</servlet>
<servlet-mapping>
    <servlet-name>MyApp</servlet-name>
    <url-pattern>/app/customer1/servlet</url-pattern>
</servlet-mapping>
<servlet-mapping>
    <servlet-name>MyApp</servlet-name>
    <url-pattern>/app/customer2/servlet</url-pattern>
</servlet-mapping>

Cookie cookie = new Cookie("color", "green");

@WebServlet(
    urlPatterns={"/app/customer1/servlet", "/app/customer2/servlet"})
public class CookieExample extends HttpServlet {

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) 
          throws ServletException, IOException {
        String urlSaved = "No Saved URL";
        Cookie[] cookies = req.getCookies();
        for (Cookie aCookie : cookies) {
            if ("url".equals(aCookie.getName())) {
                urlSaved = aCookie.getValue();
            }
        }
        resp.getWriter().print("Saved url = " + urlSaved); 
        String path = req.getRequestURI().substring(
            req.getRequestURI().indexOf("/app")
        );
        resp.addCookie(new Cookie("url", path));
    }    

}

    <a href="app/customer1/servlet">Cookie Customer 1</a><br>
    <a href="app/customer2/servlet">Cookie Customer 2</a>