如何从 SAPUI5 控制器向 Java Servlet 发出 POST 请求？

Question

我用 Tomcat 8.5 服务器创建了一个动态 Web 项目，然后我创建了一个 index.html 来启动我的第一个视图（一个简单的登录表单）。当我点击登录按钮开始功能 onPress:

     onPress : function() {
          var user = this.getView().byId("userInput").getValue();
          var pwd = this.getView().byId("passwordInput").getValue();
          var request = {
                un : user,
                pw : pwd
            };
          $.post("LoginServlet", request, function() {
            alert("Ciao");
          });
      }

我想将用户名和密码传递给这个 servlet (LoginServlet)

public class LoginServlet extends HttpServlet {

public void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, java.io.IOException {

    try {    
        UserBean user = new UserBean();
        user.setUserName(request.getParameter("un"));
        user.setPassword(request.getParameter("pw"));

        user = UserDAO.login(user);

        /*if (user.isValid()) {

            HttpSession session = request.getSession(true);
            session.setAttribute("currentSessionUser", user);
            response.sendRedirect("userLogged.jsp"); // logged-in page
        }else
            response.sendRedirect("invalidLogin.jsp"); // error page*/
    } catch (Throwable theException) {
        System.out.println(theException);
    }
  }
}

我得到的错误是：

404 Not Found. Description: The origin server did not find a current representation for the target resource or is not willing to disclose that one exists. Message: /LOGIN_RACMET_UI5_DynamicWebProject/LoginServlet

我需要前端是用SAPUI5开发的，所以不能用JSP、PHP等

该项目的结构类似于 this

当我打电话时，这是 result

Answer 1

我解决了。 url

错了

$.post("LOGIN_RACMET_UI5_DynamicWebProject/LoginServlet", request, function() {
        alert("Ciao");
      });

没错

如何从 SAPUI5 控制器向 Java Servlet 发出 POST 请求？

How to do a POST request from SAPUI5 controller to Java Servlet?

javascript

java

jquery

sapui5