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yexin218
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different between<A Href> and <jsp: forward>

    博客分类：
  • Jsp
JSPServletRESTWebBean 
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i want to access Servelt by hyperlink in a jsp web site
connection.jsp

<%@ page contentType="text/html;charset=GB2312"

 %>
<HTML>
<BODY bgcolor=cyan><Font size=1>
<A Href="/myjsp/Hello"

 >Accessing servlet<A>
</BODY>
</HTML


i put the bean in the dir(/myjsp/WEB-INF/classes/hello(package)/Hello)
and modify the file web.xml like this:

><servlet>
        <servlet-name>Hello</servlet-name>
        <servlet-class>hello.Hello</servlet-class>
    </servlet>
    <servlet-mapping>
  	<servlet-name>Hello</servlet-name>
  	<url-pattern>/Hello</url-pattern>
    </servlet-mapping>



it works!
but if i use <jsp:forward>

<html>
	<body bgcolor="green"

>
	
	<jsp:forward page="/myjsp/Hello"

 />
	<body>
</html>



it causes an Exception The requested resource (/myjsp/myjsp/SimpleServlet) is not available.

but if you rewrite the path like this <jasp:forward page="/Hello"/>
it will be ok.   why?
in my opinion, if you use <A Href=..> the default path is http://localhost:8080
so you need the rest path is /myjsp/Hello. but if you use <jsp:forward> the default path is http://localhost:8080/myjsp/,so you just need write the rest part"/Hello".
i don't know my explaination is right or not. but i think this is a try.

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