How configure eclipse for jsp formatting?

Maybe you can try this: Window -> Preference -> Web -> HTML Files ->Editor -> Formatting : change the "Line width" to 200 or larger

In eclipse:

• for Windows Open Window Menu -> choose Preferences
• for Mac Open EclipceMenu -> choose Preferences

From the Preferences Window choose Web => HTML Files => Editor

From the Inline Elements: view, add all tags that you want appear in one line

Now whenever you press CTRL+SHIFT+F, the JSP will be formatted to your new style