如何删除无用的JSP

Question

On the website that I'm developping, I'm using a lot of Ajax calls to display informations.

Theses Ajax Call are as follow :

function deleteBookingAjax(rowId) {

$.ajax({
    url : "deleteRent.htm", 
    type : "GET",   
    data : {
        "rentId" : rowId
    },
    dataType : 'json',
    cache : false,
    success : function(response) {

        if(response.error) {
            showPopupMessage(response.error, true);
        } 

    },
    statusCode : {
        500 : function() {
            loggingMessage('Error 500');
            reloadBookingTable();
        },
        404 : function() {
            loggingMessage('Error 404');
            reloadBookingTable();
        }

    }
  });
}

To perform this call, I have also Controllers as follow :

@RequestMapping(value = "/deleteRent.htm")
public String deleteRent(Long rentId, HttpServletRequest request, HttpServletResponse response) {

    if (rentId == null) {
        return null;
    }

    try {

        rentService.deleteRent(rentId);

    } catch (Exception e) {

        LOGGER.error(e);
    }

    response.setStatus(HttpStatus.SUCCESS);

    return ViewNames.BOOKINGS_PAGE;
}

But my problem is that : to perform this Ajax call, I need to create a useless JSP file : WEB-INF/jsp/deleteRent.jsp

<%@page import="net.****.****.web.controllers.RentControllers"%>
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ taglib uri="http://www.springframework.org/tags" prefix="spring"%>

If I don't create theses files, the Ajax call is not working...

When the file is not in the WEB-INF/ The Ajax call returns :

GET http://127.0.0.1/deleteRent.htm?rowId=1 404 (Not Found)

And the logs are showing :

2015-07-31 10:47:39,084 DEBUG [org.springframework.web.servlet.DispatcherServlet] - Could not complete request
javax.servlet.ServletException: File "/WEB-INF/jsp/deleteRent.jsp" not found 
at org.apache.jasper.servlet.JspServlet.handleMissingResource(JspServlet.java:417)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:384)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339)
....

How can I make it work without theses files (I assume it will be in configurations... but where exactly and how ?), because it's not convinient to have a lot of JSP files but when only few of them have contents...

EDIT

Here is the content of my context.xml, if the errror is located there, we never know :

<!-- resources exclusions from servlet mapping -->
<mvc:resources mapping="/css/**" location="/css/" />
<mvc:resources mapping="/images/**" location="/images/" />
<mvc:resources mapping="/scripts/**" location="/scripts/" />
<mvc:resources location="/, classpath:/META-INF/web-resources/" mapping="/resources/**" />


<!-- Enables the Spring MVC @Controller programming model -->
<context:component-scan base-package="net.****.****.web" />

<context:annotation-config />

<mvc:annotation-driven />

<bean id="properties"
    class="org.springframework.beans.factory.config.PropertiesFactoryBean">
    <property name="locations">
        <list>
            <value>classpath:/META-INF/messages_en.properties</value>
        </list>
    </property>
</bean>


<bean id="jsonView" class="org.springframework.web.servlet.view.json.MappingJackson2JsonView" />

<!-- Resolves views selected for rendering by @Controllers to .jsp resources in the /WEB-INF/jsp directory -->
<bean class="org.springframework.web.servlet.view.BeanNameViewResolver" />

<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />
    <property name="prefix" value="/WEB-INF/jsp/" />
    <property name="suffix" value=".jsp" />

    <property name="alwaysInclude" value="true" />
    <property name="contentType" value="text/html; charset=UTF-8" />
</bean>

<bean id="annotationMethodHandlerAdapter" class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />

Thanks in advance. :)

Answer 1

I am not quite sure if you are looking for this, but you can include below into your applicationContext.xml or your *****-servlet.xml file.

<bean id="viewResolver" class="org.springframework.web.servlet.view.UrlBasedViewResolver">
    <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" />
    <property name="prefix" value="/WEB-INF/jsp/" />
    <property name="suffix" value=".jsp" /> 
</bean>

Add this into your pom. Now you can return String from your method.

<!-- Jackson JSON Mapper -->
<dependency>
    <groupId>org.codehaus.jackson</groupId>
    <artifactId>jackson-mapper-asl</artifactId>
    <version>1.9.10</version>
</dependency>