自定义html视图
eXtremeTable使用View接口来生成HTML。你可以使用发行包已经提供的视图，或者你可以插入自己的视图实现。如果要定义自己的视图只需实现View接口，扩展AbstractHtmlView类便可。
一个改变eXtremeTable工具条的实例：（定义两个类）
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();
//
在工具条里面添加一个文本框以便手动的控制页面显示的行数
/* 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自定义html视图eXtremeTable使用View接口来生成HTML。你可以使用发行包已经提供的视图，或者你可以插入自己的视图实现。如果要定义自己的视图只需实现View接口，扩展AbstractHtmlView类便可。
一个改变eXtremeTable工具条的实例：（定义两个类）
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();
//在工具条里面添加一个文本框以便手动的控制页面显示的行数
/* 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>中添加一个属性view=”MyView的完整类名”，运行效果如下：
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>中添加一个属性view=”MyView的完整类名”。
为表格添加操作在实际应用，特别是在一些管理系统中前台页面往往查看信息与编辑、删除都放在一起。对于eXtremeTable达到这样的效果只需在jsp文件中（自定义一列）如下：
<ec:column alias="操作" filterable="false" sortable="false" >
<a href="${pageContext.request.contextPath}/servlet/EmployeeServlet?param=edit&id=${employee.id}">编辑</a>
<!--使用图片的好处就是可以避免国际化的问题-->
<a onclick="confirm('真的删除');" ><img border="0" src ="${pageContext.request.contextPath}/images/delete.jpg"></a>
</ec:column>
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