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本项目主要弥补在使用mybatis3+springmvc+jquery easyui快速搭建web应用系统是遇到的框架不足. 主要工作包括： 1，扩展了ApplicationContextAware，通过单例注入spring容器，提供spring容器外的bean获取方法 2，扩展了apache shiro框架，统一了安全结构 3，扩展了mybatis3拦截器，在两个拦截器中自动完成分页注入，实现内存分页。 4，分页设计数据库方言 5，提供了一个easyuigrid的模型 6，提供了java泛型的jstl 7， xml工具包等一些小工具

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package net.sourceforge.jweb.jstl.fn;

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

public class CollectionUtil {
	private CollectionUtil() {
	}

	public static boolean contains(Collection a, Object b) {
		if (a == null)
			return false;
		return a.contains(b);
	}

	public static boolean isEmpty(Collection a) {
		return a != null && a.isEmpty();
	}

	public static int size(Collection coll) {
		return coll == null ? 0 : coll.size();
	}

	public static Object[] toArray(Collection coll) {
		return coll == null ? new Object[] {} : coll.toArray();
	}

	public static boolean add(Collection coll, Object obj) {
		return coll == null ? false : coll.add(obj);
	}

	public static boolean remove(Collection coll, Object obj) {
		return coll == null ? false : coll.remove(obj);
	}

	public static boolean containsAll(Collection coll, Collection c) {
		return coll == null ? false : coll.containsAll(c);
	}

	public static boolean addAll(Collection coll, Collection c) {
		return coll == null ? false : coll.addAll(c);
	}

	public static boolean removeAll(Collection coll, Collection c) {
		return coll == null ? false : coll.removeAll(c);
	}

	public static boolean retainAll(Collection coll, Collection c) {
		return coll == null ? false : coll.retainAll(c);
	}

	public static void clear(Collection coll) {
		if (coll != null)
			coll.clear();
	}

	public static boolean equals(Collection coll, Object obj) {
		return coll == null ? obj == null : coll.equals(obj);
	}

	public static int hashCode(Collection coll) {
		return coll == null ? -1 : coll.hashCode();
	}

	// list
	public static boolean addAll(List coll, int index, Collection c) {
		return coll == null ? false : coll.addAll(index, c);
	}

	public static Object get(List coll, int index) {
		return coll == null ? null : coll.get(index);
	}

	public static Object set(List coll, int index, Object element) {
		return coll == null ? null : coll.set(index, element);
	}

	public static void add(List coll, int index, Object element) {
		if (coll != null)
			coll.add(index, element);
	}

	public static Object remove(List coll, int index) {
		return coll == null ? null : coll.remove(index);
	}

	public static int indexOf(List coll, Object o) {
		return coll == null ? -1 : coll.indexOf(o);
	}

	public static int lastIndexOf(List coll, Object o) {
		return coll == null ? -1 : coll.lastIndexOf(o);
	}

	public static List subList(List coll, int fromIndex, int toIndex) {
		return coll == null ? new ArrayList(1) : coll.subList(fromIndex, toIndex);
	}

}
    

    

    

            

    

            



    
    






    
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