There are probably more than a few ways, but here is a little component .jsp code that uses the jcr query api to pull out all the components and list them on a page. If I know CQ, there might be a way to ask for a list of components another way though, maybe through another API, or possibly a .json url, I might remember reading something about that, somewhere, lol, but this at least gets you the list in a somewhat simple way.
Code Example:
<%@include file="/apps/psul/components/global.jsp"%>
<%@ page import="javax.jcr.*,
javax.jcr.query.*"
%>
<%
// Login to create an anonymous session on the default workspace
Session session = resourceResolver.adaptTo(Session.class);
//Declare a query for all the components in the system
String SQL = "select * from cq:Component";
//side note: if you want just the components in your site area, then make the query more like below...
// SQL = "select * from cq:Component where jcr:path like '/apps/yoursitename/%'";
QueryManager qm = session.getWorkspace().getQueryManager();
Query query = qm.createQuery(SQL, Query.SQL);
QueryResult result = query.execute();
NodeIterator nodes = result.getNodes();
while (nodes.hasNext()) {
Node node = (Node)nodes.next();
%>
<p><%=node.getName() %> (<b><%=node.getPath() %></b>)</p>
<% } %>
