Mapping servlet in web.xml [duplicate]

问题:

This question already has an answer here:

• Servlet returns “HTTP Status 404 The requested resource (/servlet) is not available” 1 answer

The xml file is located in WebContent/WEB-INF/web.xml of my project. I am using Eclipse and running Tomcat (which is not installed via Eclipse. I prefer it to be a separate installation).

EmployeeManagementindex.htmlindex.htmindex.jspdefault.htmldefault.htmdefault.jspnamePramodRegistration/EmployeeManagement/WebContent/Registration

It doesnt work when the form page submits to the servlet. I am getting a 404 error everytime. I have been encountering this problem for a while. Somebody please help me.

回答1:

You are missing ... tag which is important to mapping. So use following :

EmployeeManagementindex.htmlindex.htmindex.jspdefault.htmldefault.htmdefault.jspnamePramodRegistrationcom.yourPackageName.yourServletNameRegistration/EmployeeManagement/WebContent/Registration

and you should give action value on your form like following:

        //Some code here  
 

and also note it down all values are case sensitive on the following code:

Registrationcom.yourPackageName.yourServletNameRegistration/EmployeeManagement/WebContent/Registration

Your servlet name Registration should be same on both tags ... and ... and also package name should be same where your servlet class is located.

回答2:

you have not mapped servlet name to servlet class, It should be like given below,

In give the path of your servlet

    Registrationcom.RegistrationRegistration/EmployeeManagement/WebContent/Registration

回答3:

Check your form action. Is the path there

/EmployeeManagement/WebContent/Registration

or

YOURAPPCONTEXT/EmployeeManagement/WebContent/Registration

or

YOURAPPNAME/EmployeeManagement/WebContent/Registration

回答4:

You have specifyed a servlet-mapping and used the name Registration in servlet-name without defining it before.

You need to define the servlet before using it in a servlet mapping

Registration[fully qualifyied name of your servlet]

回答5:

You are missing another part to define the servlet in the web.xml

Registration       package.path.to.RegistrationServlet   

回答6:

You forgot a vital part of the configuration. You should add this to your web.xml before servlet-mapping tag:

Registrationcom.name.of.your.servlet.class

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