Jsp servlet - 登录页面没有正确重定向

时间:2014-11-03 16:01:20

标签: java jsp servlets login web.xml

我正在尝试创建登录服务,但我的网页没有正确重定向。我有以下内容:

的login.jsp

<form action="login" method="post">

User Name
<br>
<input type="text" name="userId"/>
<br><br>
Password
<br>
<input type="password" name="password"/>
<br><br>
<input type="submit"/>

</form>

LoginServlet.java

package org.sohail.javabrains;

public class LoginServlet extends HttpServlet {
private static final long serialVersionUID = 1L;

/**
 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
 */
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

    String userId, password;

    userId=request.getParameter("userId");
    password=request.getParameter("password");

    LoginService loginService = new LoginService();

    boolean result = loginService.authenticate(userId, password);

    if (result) {
        RequestDispatcher dispatcher = request.getRequestDispatcher("WEB-INF/success.jsp");
        dispatcher.forward(request, response);
        return;
    }
    else {
        response.sendRedirect("login.jsp");
        return;
    }
}

}

LoginService.java - 有一个authenticate(userId,password)方法连接数据库,验证userId并传递并返回一个布尔值。

的web.xml

<servlet>
    <servlet-name>LoginServlet</servlet-name>
    <servlet-class>org.sohail.javabrains.LoginServlet</servlet-class>
</servlet>

<servlet-mapping>
    <servlet-name>LoginServlet</servlet-name>
    <url-pattern>/LoginServlet</url-pattern>
</servlet-mapping>

来自login.jsp页面,不管我说的是什么,我得到以下错误:

HTTP状态404 - / LoginApp / login

如果authenticate()reutrns为真,它应该将页面重定向到success.jsp。

我对此很陌生,所以请随时提供任何其他建议。

1 个答案:

答案 0 :(得分:0)

感谢Birgit Martinelle的回答:

将web.xml servlet映射更改为

<servlet-mapping> 
    <servlet-name>LoginServlet</servlet-name>
    <url-pattern>/login</url-pattern>
</servlet-mapping> 

并从重定向网址中删除WEB-INF部分:

RequestDispatcher dispatcher = request.getRequestDispatcher("success.jsp"); 

- Birgit Martinelle 50分钟前