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¡¡¡¡1.juel-api-2.2.x.jar
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¡¡¡¡4.juel-2.2.x.jar
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°üϵÄÀ࣬²¢ÇÒ°üº¬de.odysseus.el
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¡¡¡¡Ò²¾ÍÊÇ˵£ºjuel-2.2.x.jar = juel-api-2.2.x.jar + juel-impl-2.2.x.jar + juel-spi-2.2.x.jar
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//ExpressionFactoryÀàµÄʵÏÖÊÇde.odysseus.el.ExpressionFactoryImpl
ExpressionFactory factory = new de.odysseus.el.ExpressionFactoryImpl();
//de.odysseus.el.util provides°üÌṩ¼´Ê±¿ÉÓõÄ×ÓÀàELContext
de.odysseus.el.util.SimpleContext context = new de.odysseus.el.util.SimpleContext();
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//ÉèÖÃmapº¯Êýmath:max(int, int)ʹÓÃjava.lang.Math.max(int, int)
context.setFunction("math", "max", Math.class.getMethod("max", int.class, int.class));
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context.setVariable("foo", factory.createValueExpression(0, int.class));
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ValueExpression e = factory.createValueExpression(context, "${math:max(foo,bar)}", int.class);
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