paginationsupport.java

使用WEBWORK,SPRING,HIBERNATE编写的简单的添加

			buf.append("<li><a href=\"" + url + "?pageSize=" + pageSize
					+ "&curPage=" + curPage + urlPara + "\">尾页</a></li>\n");
		}
		buf.append("<li class=\"pageinfo\">第" + curPage + "页</li>\n");
		buf.append("<li class=\"pageinfo\">共" + this.totalPages + "页"
				+ this.totalCount + "条记录</li>\n");*/
		buf.append("到第<input id=\"pagination_jumpto\" type=\"text\" onKeyPress=\"pagination_key()\" value=\""+ curPage+ "\"  style=\"font-size:11px;width:30px;height:15px\">页\n");
		buf.append("<IMG class=HandCursor title=\"翻指定的页码\" onclick=\"pagination_gotoPage()\" alt=\"翻指定的页码\" src=\""+this.getContextPath()+"/image/sys/btn_ok.gif\" border=\"0\" >");
		buf.append("</div>\n");

		return buf.toString();
	}

	public List getItems() {
		return items;
	}

	public void setItems(List items) {
		this.items = items;
	}

	public int getPageSize() {
		return pageSize;
	}

	public void setPageSize(int pageSize) {
		this.pageSize = pageSize;
	}

	public int getTotalCount() {
		return totalCount;
	}

	public void setTotalCount(int totalCount) {
		if (totalCount > 0) {
			this.totalCount = totalCount; // 记录总数
			this.totalPages = totalCount / pageSize; // 总页数
			if (totalCount % pageSize > 0)
				this.totalPages++;
			indexes = new int[this.totalPages];
			for (int i = 0; i < this.totalPages; i++) {
				indexes[i] = pageSize * i;
			}
			// 当前页大于总页数
			if (curPage > this.totalPages) {
				curPage = this.totalPages;
			}
			setStartIndex((curPage - 1) * pageSize);
		} else {
			this.totalCount = 0;
		}
	}

	public int[] getIndexes() {
		return indexes;
	}

	public void setIndexes(int[] indexes) {
		this.indexes = indexes;
	}

	public int getStartIndex() {
		return startIndex;
	}

	public void setStartIndex(int startIndex) {
		if (totalCount <= 0)
			this.startIndex = 0;
		else if (startIndex >= totalCount)
			this.startIndex = indexes[indexes.length - 1];
		else if (startIndex < 0)
			this.startIndex = 0;
		else {
			this.startIndex = indexes[startIndex / pageSize];
		}
	}

	public int getNextIndex() {
		int nextIndex = getStartIndex() + pageSize;
		if (nextIndex >= totalCount)
			return getStartIndex();
		else
			return nextIndex;
	}

	public int getPreviousIndex() {
		int previousIndex = getStartIndex() - pageSize;
		if (previousIndex < 0)
			return 0;
		else
			return previousIndex;
	}

	public Map getParamMap() {
		return paramMap;
	}

	public void setParamMap(Map paramMap) {
		String[] obj = (String[]) paramMap.get("pageSize");
		if (obj == null || !Valid.isInt(obj[0])) {
			pageSize = Config.pageSize;
		} else {
			pageSize = Integer.parseInt(obj[0]);
		}
		obj = null;
		obj = (String[]) paramMap.get("curPage");
		if (obj == null || !Valid.isInt(obj[0])) {
			curPage = 1;
		} else {
			curPage = Integer.parseInt(obj[0]);
		}
		// urlPara="pageSize="+pageSize+"&curPage="+curPage;
		urlPara = "";
		Iterator iterator = paramMap.keySet().iterator();
		String element = "";
		map.put("pageSize", pageSize+"");
		map.put("curPage", curPage+"");
		while (iterator.hasNext()) {
			element = (String) iterator.next();
			if(!Valid.isValid(element, "^\\w*\\.\\w*")){
				if (!Valid.isValid(element, "pageSize|curPage|actionMessage|errorMessage|idKeys")) {
					if(paramMap.get(element) instanceof String[] ){
						String[] e = (String[]) paramMap.get(element);
						try{
							urlPara += "&" + element + "=" + URLEncoder.encode(e[0],"GBK");	
							//urlPara += "&" + element + "=" + URLEncoder.encode(e[0]);
						}catch(Exception ex){
							
						}
						
						map.put(element, e[0]);
					}					

				}
			}
		}
		startIndex = (curPage - 1) * pageSize;
		this.paramMap = paramMap;
	}

	public int getCurPage() {
		return curPage;
	}

	public void setCurPage(int curPage) {
		this.curPage = curPage;
	}

	public static void main(String[] args) throws Exception {
		PaginationSupport pagination = new PaginationSupport(20, 1);
		pagination.setTotalCount(30);
		pagination.setUrl("list.action");
		System.out.println(pagination.getHtml());
	}
	public String getParams(){
		/*String[] obj = (String[]) paramMap.get("pageSize");
		if (obj == null || !Valid.isInt(obj[0])) {
			pageSize = Config.pageSize;
		} else {
			pageSize = Integer.parseInt(obj[0]);
		}
		obj = null;
		obj = (String[]) paramMap.get("curPage");
		if (obj == null || !Valid.isInt(obj[0])) {
			curPage = 1;
		} else {
			curPage = Integer.parseInt(obj[0]);
		}
		String tmpParams = "";
		Iterator iterator = paramMap.keySet().iterator();
		String element = "";
		while (iterator.hasNext()) {
			element = (String) iterator.next();
			if(!Valid.isValid(element, "^\\w*\\.\\w*")){
				if (!Valid.isValid(element, "pageSize|curPage|actionMessage|errorMessage|idKeys")) {
					if(paramMap.get(element) instanceof String[] ){
						String[] e = (String[]) paramMap.get(element);
						try{
						tmpParams += "&" + element + "=" + URLEncoder.encode(e[0],"GBK");	
						}catch(Exception ex){
							
						}
					}

				}				
			}

		}*/
		String obj = (String) map.get("pageSize");
		if (obj == null || !Valid.isInt(obj)) {
			pageSize = Config.pageSize;
		} else {
			pageSize = Integer.parseInt(obj);
		}
		obj = null;
		obj = (String) map.get("curPage");
		if (obj == null || !Valid.isInt(obj)) {
			curPage = 1;
		} else {
			curPage = Integer.parseInt(obj);
		}
		String tmpParams = "";
		Iterator iterator = map.keySet().iterator();
		String element = "";
		while (iterator.hasNext()) {
			element = (String) iterator.next();
			if(!Valid.isValid(element, "^\\w*\\.\\w*")){
				if (!Valid.isValid(element, "pageSize|curPage|actionMessage|errorMessage|idKeys")) {
					if(map.get(element) instanceof String ){
						String e = (String) map.get(element);
						try{
						    tmpParams += "&" + element + "=" + URLEncoder.encode(e,"GBK");	
							//tmpParams += "&" + element + "=" + URLEncoder.encode(e);
						}catch(Exception ex){
							
						}
					}

				}				
			}

		}
		startIndex = (curPage - 1) * pageSize;
		return "?pageSize=" + pageSize
							+ "&curPage=" + curPage + tmpParams;
	}

	public String getUrl() {
		return url;
	}

	public void setUrl(String url) {
		this.url = url;
	}

	public String getContextPath() {
		return contextPath;
	}

	public void setContextPath(String contextPath) {
		this.contextPath = contextPath;
	}
	public Map<String, String> getMap() {
		return map;
	}
	
	public void setParam(String key,String value){
		this.map.remove(key);
		this.map.put(key, value);
	}
	public void setSelfDefineNum(boolean selfDefineNum) {
		this.selfDefineNum = selfDefineNum;
	}

}