2

我是 JSP 的初学者，我有以下 servlet：

@SuppressWarnings("serial")
public class HelloAppIgorServlet extends HttpServlet {
    public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException {
        RequestDispatcher disp = req.getRequestDispatcher("/mainpage.jsp");
        disp.forward(req, resp);
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        PrintWriter pw = resp.getWriter();
        pw.print("Test");
        pw.close();
    }
}

和一个名为 mainpage.jsp 的 JSP 文件：

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
    <p>Hello there!<p>
    <form action="." method="post">
        <input type="text" name="name1" />
        <input type="submit" value="name2" />
    </form>
</body>
</html>

问题是 doPost() 方法不起作用。当我单击按钮时，它会将我重定向到 index.html 页面。我确定问题不在 servlet 中，那么它可能在哪里呢？

4

1 回答 1

1

您需要在 中设置适当的操作<form action="." method="post">。该操作是您通过<servlet-mapping>在web.xml.

于 2013-07-10T11:33:39.913 回答