冷藏食品包含什么食品:[Apache Click快速开发]Click的多彩table组件
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[Apache Click快速开发]Click的多彩table组件
分类: Java 2011-10-12 17:43 148人阅读 评论(1) 收藏 举报Click的Table组件很强大,当我第一次看到它的时候,就喜欢上它了。。
一个简便的table只需要几行java代码就可以完成,而模板(与java类对应的htm)中可以简化到只剩$table一个标签。
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- private Table table;
- table = new Table("empList")
- addControl(table);
- table.setClass(Table.CLASS_ITS);
- table.setPageSize(5);
- table.setShowBanner(true);
- table.setHoverRows(true);
- Column id = new Column("id", "序号");
- id.setWidth("50px");
- id.setTextAlign("center");
- table.addColumn(id);
- Column name = new Column("name", "姓名");
- name.setWidth("120px");
- name.setTextAlign("center");
- table.addColumn(name);
- Column gender = new Column("gender", "性别");
- gender.setWidth("50px");
- table.addColumn(gender);
- Column birth = new Column("birth", "出生日期");
- birth.setWidth("100px");
- birth.setSortable(true);
- table.addColumn(birth);
- Column email = new Column("email", "电子邮箱");
- email.setWidth("120px");
- email.setAutolink(true);
- table.addColumn(email);
- Column tel = new Column("tel", "联系电话");
- tel.setWidth("100px");
- table.addColumn(tel);
- Column job = new Column("job", "职位");
- job.setWidth("100px");
- table.addColumn(job);
- Column salary = new Column("salary", "工资");
- salary.setFormat("${0,number,#,##0.00}");
- salary.setTextAlign("right");
- salary.setWidth("120px");
- salary.setSortable(true);
- table.addColumn(salary);
- table.setDataProvider(new DataProvider
() { - public List
getData() { - return es.getEmpList();
- }
- });
几行代码,一个漂亮的表格就出来了,而且看到某些行上面的小箭头,就知道它还知道排序功能,而电子邮件中显示为超链接,也仅仅需要设置一个值。
而且,它还有11种可选的颜色样式,分别为:blue1,blue2,complex,isi,its,mars,nocol,orange1,orange2,report,simple 其中its是默认样式。
complex
isi
orange1
report
click中包含有2中样式的分页条,如果觉得不够,还可以自定分页条,以此来满足应用的需要。
下面是自带的2中分页条:
对于第二种分页条,或者也可以显示到表格外面(默认的)
在2中样式的分页都不能满足要求的时候,你就需要自定义了。需要在初始化table的时候重写其renderPaginator方法
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- table = new Table("empList"){
- @Override
- protected void renderPaginator(HtmlStringBuffer buffer) {
- renderPagingControl(buffer);
- }
- };
- private void renderPagingControl(HtmlStringBuffer buffer){
- int pageSize = table.getPageSize();
- int rowCount = table.getRowCount();
- int numPage = (rowCount+pageSize-1)/pageSize;
- String style = "width:20px;height:20px;padding:4px;margin-left:2px;border:1px solid grey;font-size:10pt";
- buffer.append("第一页");
- buffer.append("前一页");
- for(int i=1; i<=numPage; i++){
- if(i==table.getPageNumber()+1){
- buffer.append(""+i+"");
- }else{
- buffer.append(""+i+"");
- }
- }
- buffer.append("后一页");
- buffer.append("最后一页");
- }
这样基本能满足需求,但我还想给表格中的工资来个汇总,并把合计显示到表格的最后2行。大概的样子是这样的:
于是,用和自定义分页条类似的方法,在初始化table的时候同时重写其renderFooterRow方法
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- @Override
- protected void renderFooterRow(HtmlStringBuffer buffer) {
- renderFooter(buffer);
- }
- private void renderFooter(HtmlStringBuffer buffer){
- float total_salary = 0;
- float sub_total_salary = 0;
- int sub_begin = table.getPageNumber()*table.getPageSize();
- int sub_end = (table.getPageNumber()+1)*table.getPageSize();
- for(int i=0; i
- Person ps = (Person)table.getRowList().get(i);
- float salary = ps.getSalary();
- total_salary += salary;
- if(i>=sub_begin&&i
- sub_total_salary += salary;
- }
- }
- String subFormat = "小计: ${0,number,#,##0.00}";
- String totalFormat = "总计: ${0,number,#,##0.00}";
- String subTotalDisplay = MessageFormat.format(subFormat, new Float(sub_total_salary));
- String totalDisplay = MessageFormat.format(totalFormat, new Float(total_salary));
- int cols = table.getColumnList().size();
- buffer.append("
"); - buffer.append(subTotalDisplay);
- buffer.append("
");"); - buffer.append(totalDisplay);
- buffer.append("
- }
把所有的样式列出来,可以动态改变表格样式;可以改变分页显示条数;选择是否有高亮条;
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- private Form style_form = new Form("style_form");
- private Select table_style = new Select("table_style","样式");
- private Checkbox table_hover = new Checkbox("table_hover", "高亮条");
- private Select page_size = new Select("page_size","每页(条)");
- addControl(style_form);
- style_form.setStyle("font-size", "10pt");
- style_form.setColumns(3);
- table_style.addAll(Table.CLASS_STYLES);
- table_style.setAttribute("onchange", "style_form.submit();");
- style_form.add(table_style);
- page_size.addAll(new String[]{"5","10","20","30"});
- page_size.setAttribute("onchange", "style_form.submit();");
- style_form.add(page_size);
- table_hover.setAttribute("onclick", "style_form.submit();");
- style_form.add(table_hover);
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- @Override
- public void onPost() {
- style_form.saveState(getContext());
- }
- @Override
- public void onRender() {
- table.setClass(table_style.getValue());
- table.setPageSize(Integer.parseInt(page_size.getValue()));
- table.setHoverRows(table_hover.isChecked());
- }
Apache Click的表格组件还是很不错,对于用户自定义组件很给力。。