JSP错误：请求的资源不可用

I am new in this site and as a programmer I consider myself to be beginner/intermediate level. I am new in java and have to work with JSP for an University course. I want to know what is wrong with this code because I am receiving this error:

我是这个网站的新手,作为程序员,我认为自己是初级/中级水平。我是java新手,必须使用JSP进行大学课程。我想知道这段代码有什么问题,因为我收到了这个错误:

the requested resource is not available.

请求的资源不可用。

Here is all my code:

这是我的所有代码:

session.jsp

<html>
<body>
<form method = Post action = “receiveName.jsp”>
please enter your name: <input type = "text" name = "myname" size = 20></br>
<input type = "submit"><input type = "clear">
</form>
</body>
</html>

receiveName.jsp

<jsp:useBean id="bean" class="mynames.Names" scope="session"/>
<jsp:setProperty name="bean" property="myNames" param="myname"/>

<% String name = bean.getMyNames();
session.setAttribute(“user”, name);
%>
<html>
<body>
<a href = “showname.jsp”>move to next page</a>
</body>
</html>

showName.jsp

<html>
<body>
Hello <% = session.getAttribute(“user”)%>
</body>
</html>

Names.java

package mynames;

public class Names{

    private String myNames;

    public Names(){
    }

    public void setMyNames(String name){
        myNames = name;
    }

    public String getMyNames(){
        return myNames;
    }
}

I don't understand how to implement the concept of bean very well and if I run the receiveName.jsp alone the following report appears:

我不明白如何很好地实现bean的概念,如果我单独运行receiveName.jsp,则会出现以下报告:

org.apache.jasper.JasperException: /EjemploProfesor/Class/receiveName.jsp (line: 1, column: 1) The value for the useBean class attribute mynames.Names is invalid.

Every input from you will be very appreciated. By the way, I am not using an IDE, just Sublime Text 2 running in Ubuntu and as server Apache Tomcat 8.0.21

非常感谢您的每一个意见。顺便说一句,我没有使用IDE,只使用在Ubuntu中运行的Sublime Text 2和作为服务器的Apache Tomcat 8.0.21

2 个解决方案

#1

You will have to change the “ to " in your whole code.

您必须在整个代码中更改“to”。

For eg:

<form method = Post action = “receiveName.jsp”>

has to be changed to

必须改为

<form method = Post action = "receiveName.jsp">

Similarly, change the below given lines

同样,更改以下给定的行

session.setAttribute(“user”, name);
<a href = “showname.jsp”>
Hello <% = session.getAttribute(“user”)%>

session.setAttribute("user", name);
<a href = "showname.jsp">
Hello <% = session.getAttribute("user")%>

respectively

#2

You need to import the class Names in your receiveName.jsp

您需要在receiveName.jsp中导入类名

<%@page import="mynames.Names"%>

#1