7
votes

I created a JSP file.

sample.jsp

<%@ page pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
  <head>
    <title>Insert title here</title>
  </head>
  <body>
    This is jsp program
  </body>
</html>

I placed it here in the samplejsp project.

samplejsp
 `-- WebContent
      `-- WEB-INF
           `-- sample.jsp

I opened it on the following URL.

http://localhost:8080/samplejsp/sample.jsp

But it shows the following error in browser.

404 ERROR

The requested resource (/sample.jsp) is not available.

3
sorry,I resolve my mistake today omwards - user246160
7 days passed and you haven't accepted nothing since... - Axarydax

3 Answers

8
votes

404 simply means "Not Found".

Either the URL is wrong (note: case sensitive!), or the resource is not there where you think it is.

Just verify the URL and/or verify if the resource is there where you'd expect it to be. You placed sample.jsp in /WEB-INF folder. This way it is not publicly accessible without calling through a front controller servlet.

Put it outside /WEB-INF.

samplejsp
 `-- WebContent
      |-- WEB-INF
      `-- sample.jsp

If you want to keep it in /WEB-INF, then you need to create a front controller servlet which forwards to it in doGet() method as below.

request.getRequestDispatcher("/WEB-INF/sample.jsp").forward(request, response);

Finally "open" the JSP by just calling servlet's actual URL instead of JSP's fictive URL.

See also:

1
votes

It's mostly related to your directory structure or packaging.
Can you please add your directory structure?

Similar to below -

src 
|-html\
|-jsp\

Perhaps this should do it

<form action="sample.jsp" method=get>
      <input type =submit value="submit">
</form>

Edit - WEB-INF does not allow direct access to JSP.

1
votes

In my spring boot web application with JSP it didn't worked until I have added this dependency

    <dependency>
        <groupId>org.apache.tomcat.embed</groupId>
        <artifactId>tomcat-embed-jasper</artifactId>
        <scope>provided</scope>
    </dependency>

even after configuring view resolver

spring.mvc.view.prefix: /WEB-INF/views/ 
spring.mvc.view.suffix: .jsp

If you find why this worked please comment.