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Editorial Team
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Asked: 2026-06-03T12:11:21+00:00

I have a basic app in SpringMVC. All of my controllers extend a super

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I have a basic app in SpringMVC. All of my controllers extend a super class shown below.
The problem here is that the cssFiles and jsFiles are not reset every time a controller method is touched. So I end up with content/view.js being loaded x+1 times for every page view. If I’ve loaded the page 3 times, it’ll contain 4x content/view.js files.

I’m seeing these values be appended to each time the page is loaded. Why is this happening and how do I fix it? 

public class Controller {
    private List<String> cssFiles = new ArrayList<String>();
    private List<String> jsFiles = new ArrayList<String>();

    public Controller () {
        this.addCss("global");

        this.addJs("http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min");
        this.includejQueryUI();
        this.addJs("global");
    }

    public ModelAndView prepareModel (ModelAndView model) {

        model.addObject("cssFiles", cssFiles);
        model.addObject("jsFiles", jsFiles);

        return model;
    }
    public ModelAndView prepareModel (ModelAndView model, String title) {
        model.addObject("title", title);

        return prepareModel(model);
    }

    /*
     * Add a css file to the page
     */
    public void addCss (String cssPath) {
        if (cssPath.indexOf("://") < 1) {
            cssPath = "/cmt/css/"+cssPath;
        }

        cssFiles.add(cssFiles.size(), cssPath);
    }

    /*
     * Add a javascript file to the page
     */
    public void addJs (String jsPath) {
        if (jsPath.indexOf("://") < 1) {
            jsPath = "/cmt/js/"+jsPath;
        }

        jsFiles.add(jsFiles.size(), jsPath);
    }

    /**
     * Add a Rich Text Editor (TinyMCE) library to the page
     */
    public void includeRichTextEditor() {
        addJs("../lib/tiny_mce-3.5b3/tiny_mce");
    }

    /**
     * Add the jQuery UI library to the page
     */
    public void includejQueryUI() {
        addCss("../lib/jquery-ui-1.8.19/custom-theme/jquery-ui-1.8.19.custom");
        addJs("../lib/jquery-ui-1.8.19/jquery-ui-1.8.19.custom.min");
    }
}

I’m still struggling to determine the cause of this issue…. any ideas?

Part of web.xml

<!-- Standard spring configuration -->
<listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

<context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>/WEB-INF/applicationContext*.xml</param-value>
</context-param>

<!-- Spring Web MVC dispatcher servlet -->
<servlet>
    <servlet-name>dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>dispatcher</servlet-name>
    <url-pattern>*.html</url-pattern>
    <url-pattern>*.json</url-pattern>
</servlet-mapping>
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1 Answer

  1. Editorial Team

    Although I didn’t test this code, the obvious thing what I’d try is :

    public class Controller {
    private List<String> cssFiles;
    private List<String> jsFiles;
.......
 public Controller () {
        cssFiles = new ArrayList<String>();
        jsFiles = new ArrayList<String>();
        this.addCss("global");
        this.addJs("http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min");
        this.includejQueryUI();
        this.addJs("global");
    }

    Can you ellaborate what you mean by reset in are not reset every time a controller method is touched

    I’ve misunderstood your question at first here is revised version :

    <html>
<head>
<!--Above content is header-->
<!--Specific CSS for edit.jsp here-->
<!--Or if you want to override css classes inside <style></style>-->
</head>
<body>
<!--Load specific edit.jsp javascript at the end of the body tag-->
<!--Below content is footer-->
</body>
</html>

    If you need to override some javascript then put the edit.jsp specific js after the html tag. So your edit file would look like this :

    <%@include file="header.jsp" %>
</head>
<body>
<!--some edit.jsp content -->
<%@include file="footer.jsp" %>
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