How to set the Eclipse, myeclipse XML file Syntax hints

When editing a file like Struts.xml, there is generally no syntax hint, you can set it up as follows:

Copy struts2-core-2. X.jar in the Struts-2.3.dtd file, placed in any position, such as D:\Src_API\ under;

Open the MyEclipse window/preferences, enter the XML catalog in the input box, as shown in the following figure:

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Click the "ADD" button to open the following dialog box:

Location Select where to place the DTD file;

The Key type selects the URI;

Copy the <! of the Struts.xml file The following text for the DOCTYPE/> Label: HTTP://STRUTS.APACHE.ORG/DTDS/STRUTS-2.3.DTD

Paste into key;

Save, you can have syntax hints.