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    lyyb2001
    
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				extremetable應(yīng)用
			
    
 			Posted on 2008-02-29 15:30 skycity 閱讀(504) 評論(0)  編輯  收藏  所屬分類: J2EE技術(shù) 
			
			


		
    
		
    
		?自定義html視圖
		
    eXtremeTable使用View接口來生成HTML。你可以使用發(fā)行包已經(jīng)提供的視圖，或者你可以插入自己的視圖實現(xiàn)。如果要定義自己的視圖只需實現(xiàn)View接口，擴展AbstractHtmlView類便可。
    
		
    一個改變eXtremeTable工具條的實例：（定義兩個類）
    
		
    1.Mytoolbar.java
    
		
    public class MyToolbar extends TwoColumnTableLayout {
    
		
    
				?????? ?public MyToolbar(HtmlBuilder html, TableModel model) {
		
    
		
    
				?????? ??????? super(html, model);
		
    
		
    
				?????? ??? }
		
    
		
    
				?????? ??? protected boolean showLayout(TableModel model) {
		
    
		
    
				?????? ??????? boolean showPagination = BuilderUtils.showPagination(model);
		
    
		
    
				?????? ??????? boolean showExports = BuilderUtils.showExports(model);
		
    
		
    
				?????? ??????? boolean showTitle = BuilderUtils.showTitle(model);
		
    
		
    
				?????? ??????? if (!showPagination && !showExports && !showTitle) {
		
    
		
    
				?????? ??????????? return false;
		
    
		
    
				?????? ??????? }
		
    
		
    
				?????? ??????? return true;
		
    
		
    
				?????? ??? }
		
    
		
    
				?????? ?? protected void columnLeft(HtmlBuilder html, TableModel model) {
		
    
		
    
				?????? ??????? html.td(2).close();
		
    
		
    
				?????? ??????? new TableBuilder(html, model).title();
		
    
		
    
				?????? ??????? html.tdEnd();
		
    
		
    
				?????? ??? }
		
    
		
    
				?????? ??? protected void columnRight(HtmlBuilder html, TableModel model) {
		
    
		
    
				?????? ??????? boolean showPagination = BuilderUtils.showPagination(model);
		
    
		
    
				?????? ??????? boolean showExports = BuilderUtils.showExports(model);
		
    
		
    
				?????? ??????? ToolbarBuilder toolbarBuilder = new ToolbarBuilder(html, model);
		
    
		
    
				?????? ??????? html.td(2).align("right").close();
		
    
		
    
				???????????????????? ??????? html.table(2).border("0").cellPadding("0").cellSpacing("1").styleClass(BuilderConstants.TOOLBAR_CSS).close();
		
    
		
    
				?????? ??????? html.tr(3).close();
		
    
		
    
				?????? ??????? if (showPagination) {
		
    
		
    
				?????? ??????????? html.td(4).close();
		
    
		
    
				?????? ??????????? toolbarBuilder.firstPageItemAsImage();
		
    
		
    
				?????? ??????????? html.tdEnd();
		
    
		
    
				?????? ??????????? html.td(4).close();
		
    
		
    
				?????? ??????????? toolbarBuilder.prevPageItemAsImage();
		
    
		
    
				?????? ??????????? html.tdEnd();
		
    
		
    
				?????? ??????????? html.td(4).close();
		
    
		
    
				?????? ??????????? toolbarBuilder.nextPageItemAsImage();
		
    
		
    
				?????? ??????????? html.tdEnd();
		
    
		
    
				?????? ??????????? html.td(4).close();
		
    
		
    
				?????? ??????????? toolbarBuilder.lastPageItemAsImage();
		
    
		
    
				?????? ??????????? html.tdEnd();
		
    
		
    
				?????? ??????????? html.td(4).close();
		
    
		
    
				?????? ??????????? toolbarBuilder.separator();
		
    
		
    
				?????? ??????????? html.tdEnd(); 
		
    
		
    
				?????? ??????????? html.td(4).close();
		
    
		
    
				???????????? //
				在工具條里面添加一個文本框以便手動的控制頁面顯示的行數(shù)
		
    
		
    
				?????? ??????????? /* StringBuffer action = new StringBuffer("javascript:");
		
    
		
    
				?????? ??????????? TableActions ta = new TableActions(model); 
		
    
		
    
				?????? ??????????? int currentRowsDisplayed = model.getLimit().getCurrentRowsDisplayed()
				；
		
    
		
    
				???????????????????? ??? html.input("text").name(model.getTableHandler().prefixWithTableId() + TableConstants.ROWS_DISPLAYED).value(String.valueOf(currentRowsDisplayed);
		
    
		
    
				?????? ??????????? action.append(ta.getClearedExportTableIdParameters());
		
    
		
    
				?????? ??????????? String form = BuilderUtils.getForm(model);
		
    
		
    
				?????? ??????????? action.append("document.forms.").append(form).append(".");
		
    
		
    
				??????????????????????????? ?? action.append(model.getTableHandler().prefixWithTableId()).append(TableConstants.CURRENT_ROWS_DISPLAYED);
		
    
		
    
				?????? ??????????? action.append(".value=").append("this.value").append(";"); 
		
    
		
    
				?????? ??????????? action.append(ta.getFormParameter(TableConstants.PAGE, "1"));
		
    
		
    
				?????? ??????????? action.append("if(event.keyCode==13){");
		
    
		
    
				?????? ??????????? action.append(ta.getOnInvokeAction());
		
    
		
    
				?????? ??????????? action.append("}");
		
    
		
    
				?????? ??????????? html.onkeypress(action.toString());
		
    
		
    
				?????? ??????????? html.xclose();
		
    
		
    
				?????? ??????????? html.tdEnd();*/
		
    
		
    
				?????? ??????????? 
		
    
		
    
				?????? ??????????? html.td(4).style("width:10px").close();
		
    
		
    
				?????? ??????????? html.newline();
		
    
		
    
				?????? ??????????? html.tabs(4);
		
    
		
    
				?????? ??????????? toolbarBuilder.rowsDisplayedDroplist();
		
    
		
    
				?????? ??????????? html.img();
		
    
		
    ?html.src(BuilderUtils.getImage(model, BuilderConstants.TOOLBAR_ROWS_DISPLAYED_IMAGE));
    
		
    
				?????? ???????????html.style("border:0");
		
    
		
    
				?????? ??????????? html.alt("Rows Displayed");
		
    
		
    
				?????? ??????????? html.xclose();
		
    
		
    
				?????? ??????????? html.tdEnd();
		
    
		
    
				?????? ??????????? if (showExports) {
		
    
		
    
				?????? ??????????????? html.td(4).close();
		
    
		
    
				?????? ??????????????? toolbarBuilder.separator();
		
    
		
    
				?????? ?????????? ?????html.tdEnd();
		
    
		
    
				?????? ??????????? }
		
    
		
    
				?????? ??????? }
		
    
		
    
				?????? ??????? if (showExports) {
		
    
		
    
				?????? ??????????? Iterator iterator = model.getExportHandler().getExports().iterator();
		
    
		
    
				?????? ??????????? for (Iterator iter = iterator; iter.hasNext();) {
		
    
		
    
				?????? ??????????????? html.td(4).close();
		
    
		
    
				?????? ??????????????? Export export = (Export) iter.next();
		
    
		
    
				?????? ??????????????? toolbarBuilder.exportItemAsImage(export);
		
    
		
    
				?????? ??????????????? html.tdEnd();
		
    
		
    
				?????? ??????????? }
		
    
		
    
				?????? ??????? }
		
    
		
    
				?????? ??????? html.trEnd(3);
		
    
		
    
				?????? ??????? html.tableEnd(2);
		
    
		
    
				?????? ??????? html.newline();
		
    
		
    
				?????? ??????? html.tabs(2);
		
    
		
    
				?????? ??????? html.tdEnd();
		
    
		
    
				?????? ??? }
		
    
		
    }
    
		
    2.MyView.java
    
		
    public class MyView?extends AbstractHtmlView {
    
		
    
				?????? ?protected void beforeBodyInternal(TableModel model) {
		
    
		
    
				?????? ??????? getTableBuilder().tableStart();
		
    
		
    
				?????? ??????? getTableBuilder().theadStart();
		
    
		
    
				?????? ??????? getTableBuilder().filterRow();
		
    
		
    
				?????? ??????? getTableBuilder().headerRow();
		
    
		
    
				?????? ??????? getTableBuilder().theadEnd();
		
    
		
    
				?????? ??????? getTableBuilder().tbodyStart();
		
    
		
    
				?????? ??? }
		
    
		
    
				?????? ??? protected void afterBodyInternal(TableModel model) {
		
    
		
    
				?????? ??????? getCalcBuilder().defaultCalcLayout();
		
    
		
    
				?????? ??????? getTableBuilder().tbodyEnd();
		
    
		
    
				?????? ??????? getTableBuilder().tableEnd();
		
    
		
    
				?????? ??????? toolbar(getHtmlBuilder(), getTableModel());
		
    
		
    
				?????? ??????? statusBar(getHtmlBuilder(), get自定義html視圖
    eXtremeTable使用View接口來生成HTML。你可以使用發(fā)行包已經(jīng)提供的視圖，或者你可以插入自己的視圖實現(xiàn)。如果要定義自己的視圖只需實現(xiàn)View接口，擴展AbstractHtmlView類便可。
    一個改變eXtremeTable工具條的實例：（定義兩個類）
    1.Mytoolbar.java
    public class MyToolbar extends TwoColumnTableLayout {
    ?????? ?public MyToolbar(HtmlBuilder html, TableModel model) {
    ?????? ??????? super(html, model);
    ?????? ??? }
    ?????? ??? protected boolean showLayout(TableModel model) {
    ?????? ??????? boolean showPagination = BuilderUtils.showPagination(model);
    ?????? ??????? boolean showExports = BuilderUtils.showExports(model);
    ?????? ??????? boolean showTitle = BuilderUtils.showTitle(model);
    ?????? ??????? if (!showPagination && !showExports && !showTitle) {
    ?????? ??????????? return false;
    ?????? ??????? }
    ?????? ??????? return true;
    ?????? ??? }
    ?????? ?? protected void columnLeft(HtmlBuilder html, TableModel model) {
    ?????? ??????? html.td(2).close();
    ?????? ??????? new TableBuilder(html, model).title();
    ?????? ??????? html.tdEnd();
    ?????? ??? }
    ?????? ??? protected void columnRight(HtmlBuilder html, TableModel model) {
    ?????? ??????? boolean showPagination = BuilderUtils.showPagination(model);
    ?????? ??????? boolean showExports = BuilderUtils.showExports(model);
    ?????? ??????? ToolbarBuilder toolbarBuilder = new ToolbarBuilder(html, model);
    ?????? ??????? html.td(2).align("right").close();
    ???????????????????? ??????? html.table(2).border("0").cellPadding("0").cellSpacing("1").styleClass(BuilderConstants.TOOLBAR_CSS).close();
    ?????? ??????? html.tr(3).close();
    ?????? ??????? if (showPagination) {
    ?????? ??????????? html.td(4).close();
    ?????? ??????????? toolbarBuilder.firstPageItemAsImage();
    ?????? ??????????? html.tdEnd();
    ?????? ??????????? html.td(4).close();
    ?????? ??????????? toolbarBuilder.prevPageItemAsImage();
    ?????? ??????????? html.tdEnd();
    ?????? ??????????? html.td(4).close();
    ?????? ??????????? toolbarBuilder.nextPageItemAsImage();
    ?????? ??????????? html.tdEnd();
    ?????? ??????????? html.td(4).close();
    ?????? ??????????? toolbarBuilder.lastPageItemAsImage();
    ?????? ??????????? html.tdEnd();
    ?????? ??????????? html.td(4).close();
    ?????? ??????????? toolbarBuilder.separator();
    ?????? ??????????? html.tdEnd(); 
    ?????? ??????????? html.td(4).close();
    ???????????? //在工具條里面添加一個文本框以便手動的控制頁面顯示的行數(shù)
    ?????? ??????????? /* StringBuffer action = new StringBuffer("javascript:");
    ?????? ??????????? TableActions ta = new TableActions(model); 
    ?????? ??????????? int currentRowsDisplayed = model.getLimit().getCurrentRowsDisplayed()；
    ???????????????????? ??? html.input("text").name(model.getTableHandler().prefixWithTableId() + TableConstants.ROWS_DISPLAYED).value(String.valueOf(currentRowsDisplayed);
    ?????? ??????????? action.append(ta.getClearedExportTableIdParameters());
    ?????? ??????????? String form = BuilderUtils.getForm(model);
    ?????? ??????????? action.append("document.forms.").append(form).append(".");
    ??????????????????????????? ?? action.append(model.getTableHandler().prefixWithTableId()).append(TableConstants.CURRENT_ROWS_DISPLAYED);
    ?????? ??????????? action.append(".value=").append("this.value").append(";"); 
    ?????? ??????????? action.append(ta.getFormParameter(TableConstants.PAGE, "1"));
    ?????? ??????????? action.append("if(event.keyCode==13){");
    ?????? ??????????? action.append(ta.getOnInvokeAction());
    ?????? ??????????? action.append("}");
    ?????? ??????????? html.onkeypress(action.toString());
    ?????? ??????????? html.xclose();
    ?????? ??????????? html.tdEnd();*/
    ?????? ??????????? 
    ?????? ??????????? html.td(4).style("width:10px").close();
    ?????? ??????????? html.newline();
    ?????? ??????????? html.tabs(4);
    ?????? ??????????? toolbarBuilder.rowsDisplayedDroplist();
    ?????? ??????????? html.img();
    ?html.src(BuilderUtils.getImage(model, BuilderConstants.TOOLBAR_ROWS_DISPLAYED_IMAGE));
    ?????? ???????????html.style("border:0");
    ?????? ??????????? html.alt("Rows Displayed");
    ?????? ??????????? html.xclose();
    ?????? ??????????? html.tdEnd();
    ?????? ??????????? if (showExports) {
    ?????? ??????????????? html.td(4).close();
    ?????? ??????????????? toolbarBuilder.separator();
    ?????? ?????????? ?????html.tdEnd();
    ?????? ??????????? }
    ?????? ??????? }
    ?????? ??????? if (showExports) {
    ?????? ??????????? Iterator iterator = model.getExportHandler().getExports().iterator();
    ?????? ??????????? for (Iterator iter = iterator; iter.hasNext();) {
    ?????? ??????????????? html.td(4).close();
    ?????? ??????????????? Export export = (Export) iter.next();
    ?????? ??????????????? toolbarBuilder.exportItemAsImage(export);
    ?????? ??????????????? html.tdEnd();
    ?????? ??????????? }
    ?????? ??????? }
    ?????? ??????? html.trEnd(3);
    ?????? ??????? html.tableEnd(2);
    ?????? ??????? html.newline();
    ?????? ??????? html.tabs(2);
    ?????? ??????? html.tdEnd();
    ?????? ??? }
    }
    2.MyView.java
    public class MyView?extends AbstractHtmlView {
    ?????? ?protected void beforeBodyInternal(TableModel model) {
    ?????? ??????? getTableBuilder().tableStart();
    ?????? ??????? getTableBuilder().theadStart();
    ?????? ??????? getTableBuilder().filterRow();
    ?????? ??????? getTableBuilder().headerRow();
    ?????? ??????? getTableBuilder().theadEnd();
    ?????? ??????? getTableBuilder().tbodyStart();
    ?????? ??? }
    ?????? ??? protected void afterBodyInternal(TableModel model) {
    ?????? ??????? getCalcBuilder().defaultCalcLayout();
    ?????? ??????? getTableBuilder().tbodyEnd();
    ?????? ??????? getTableBuilder().tableEnd();
    ?????? ??????? toolbar(getHtmlBuilder(), getTableModel());
    ?????? ??????? statusBar(getHtmlBuilder(), getTableModel());
    ?????? ??? }
    ?????? ??? protected void toolbar(HtmlBuilder html, TableModel model) {
    ?????? ??????? new MyToolbar(html, model).layout();
    ?????? ??? }
    ?????? ??? protected void statusBar(HtmlBuilder html, TableModel model) {
    ?????? ??????? new DefaultStatusBar(html, model).layout();
    ?????? ??? }
    }
    然后在<ec:table>中添加一個屬性view=”MyView的完整類名”，運行效果如下：
    TableModel());    
		
    
		
    
				?????? ??? }
		
    
		
    
				?????? ??? protected void toolbar(HtmlBuilder html, TableModel model) {
		
    
		
    
				?????? ??????? new MyToolbar(html, model).layout();
		
    
		
    
				?????? ??? }
		
    
		
    
				?????? ??? protected void statusBar(HtmlBuilder html, TableModel model) {
		
    
		
    
				?????? ??????? new DefaultStatusBar(html, model).layout();
		
    
		
    
				?????? ??? }
		
    
		
    }
    
		
    然后在<ec:table>中添加一個屬性view=”MyView的完整類名”。
    為表格添加操作
    在實際應(yīng)用，特別是在一些管理系統(tǒng)中前臺頁面往往查看信息與編輯、刪除都放在一起。對于eXtremeTable達到這樣的效果只需在jsp文件中（自定義一列）如下：
    <ec:column alias="操作" filterable="false" sortable="false" >
    <a href="${pageContext.request.contextPath}/servlet/EmployeeServlet?param=edit&id=${employee.id}">編輯</a>
    <!--使用圖片的好處就是可以避免國際化的問題-->
    <a onclick="confirm('真的刪除');" ><img border="0" src ="${pageContext.request.contextPath}/images/delete.jpg"></a>
    </ec:column> 
    


    Lyyb2001
    
	
    
	


    
	    
    




    








    

				
			
    
		    		
	
    
	
    
		
			


		
	
    

    


    







    
        
	



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