I tried to activate EL proposals in a Facelets page, but when I hit Ctrl+Space, it doesn't work. I managed to activate JSF tag proposals thank to other questions, but EL proposals aren't working.
How can I activate this feature in Eclipse? Is it a known issue?
For example:
<h:inputHidden id="id" value="#{Ctrl+Space not working!}"/>
Eclipse doesn't support this out the box. Even the support in JSP is very limited. Only the properties of <jsp:useBean> and managed beans hardcoded as <managed-bean> in faces-config.xml are available by autocomplete. There are however plugins which supports EL autocomplete on @ManagedBean and @Named beans.
For example, the JBoss Tools plugin (specifically the CDI feature) which can be installed as described here: How do I Install JBoss AS / WildFly Server in Eclipse for Java EE.
(which has in its current 3.2.0 version unicode bugs, as you see above in the rightmost window)
You can even use Ctrl+Click on the managed bean name #{bean} in an EL expression in Facelets file to navigate to the concrete backing bean class. You can also use Ctrl+Shift+G on the managed bean method in a backing bean class to find all references to the particular property or action in Facelets files.
The Aptana plugin is told to work fine for EL proposals in JSPs, but I am not sure for Facelets. I didn't had good experiences with installing and configuring the plugin for JSP some years ago.
See also:
来源：https://stackoverflow.com/questions/6276254/el-proposals-autocomplete-code-assist-in-facelets-with-eclipse