How can I in a jsp page get maven project version number?

Question

I am working on a java web application, managed by maven2. From time to time, we did some changes, and want to do new releases, of course with new version number. In the hom

Answer 1

Parent pom.xml:

        
        dev
        local
        
 

Resource filtering (placeholders are replaced by pom-property values here)

   
       src/main/resources
       
            conf/version.properties
       
       true
   

Bean and property placeholder config in webContext.xml:

Your bean looks like this then

@Component
public class BuildVersion {

    private String buildBranch;
    private String buildVersion;
    private String buildRevision;

    public String getBuildRevision() {
        return buildRevision;
    }

    public void setBuildRevision(String buildRevision) {
        this.buildRevision = buildRevision;
    }

    public String getBuildVersion() {
        return buildVersion;
    }

    public void setBuildVersion(String buildVersion) {
        this.buildVersion = buildVersion;
    }

    public String getBuildBranch() {
        return buildBranch;
    }

    public void setBuildBranch(String buildBranch) {
        this.buildBranch = buildBranch;
    }

}

And here comes your JSP snippet:

<%@ page language="java"
   import="java.util.*,
        org.springframework.context.ApplicationContext,
    org.springframework.web.context.support.WebApplicationContextUtils,
         de.smava.kredithai.cfg.BuildVersion" %>
<%
    ApplicationContext applicationContext = WebApplicationContextUtils.getWebApplicationContext(pageContext.getServletContext());
    BuildVersion buildVersion = (BuildVersion) applicationContext.getBean("buildVersion");

    String branch = (String) buildVersion.getBuildBranch();
    String version = (String) buildVersion.getBuildVersion();
    String revision = (String) buildVersion.getBuildRevision();

    if (request.getParameter("branch") != null){
        out.println(branch);
    } else if (request.getParameter("version") != null){
        out.println(version);
    } else if (request.getParameter("link") != null){
        out.println("" + branch + " build " + version + "");
    } else {
        out.println(branch + " build " + version + " rev. " + revision);
    }
%>