国内精品99亚洲免费高清,亚洲成AV人片在线观看ww,亚洲国产成人久久精品大牛影视

jmesa

jmesa分頁的方式有兩種，一種是通過java代碼直接控制，第二種是通過標簽來控制。

首先介紹一下直接在java代碼中控制的方式：

Java代碼

public class PaginationActionBean implements ActionBean {
//此id表示將要創建的table的id
private String id = "user_table";
private ActionBeanContext context;
private String html;
public String getHtml() {
return html;
}
public void setHtml(String html) {
this.html = html;
}
........
@DefaultHandler
public Resolution display() {
TableFacade tableFacade = TableFacadeFactory.createTableFacade(id, this
.getContext().getRequest());
addItems(tableFacade);
html = html(tableFacade);
ForwardResolution resolution = new ForwardResolution("/jsp/page.jsp");
return resolution;
}
private void addItems(TableFacade tableFacade) {
tableFacade.setItems(FillListData.getData());
}
private String html(TableFacade tableFacade) {
tableFacade.setColumnProperties("name", "password", "deleteUser");
HtmlTable table = (HtmlTable) tableFacade.getTable();
table.setCaption("用戶列表");
table.getTableRenderer().setWidth("600px");
HtmlRow row = table.getRow();
HtmlColumn name = row.getColumn("name");
name.setTitle("名字");
HtmlColumn password = row.getColumn("password");
password.setTitle("密碼");
HtmlColumn delete = row.getColumn("deleteUser");
delete.setTitle("刪除");
delete.setWidth("100px");
// Using an anonymous class to implement a custom editor.
// 用于演示在表格中增加超鏈接
name.getCellRenderer().setCellEditor(new CellEditor() {
public Object getValue(Object item, String property, int rowcount) {
Object value = new BasicCellEditor().getValue(item, property,
rowcount);
HtmlBuilder html = new HtmlBuilder();
html.a().href().quote().append("http://baidu.com").quote()
.close();
html.append(value);
html.aEnd();
return html.toString();
}
});
delete.getCellRenderer().setCellEditor(new CellEditor() {
public Object getValue(Object item, String property, int rowcount) {
HtmlBuilder html = new HtmlBuilder();
// 取得每一行的id號
Object user = ItemUtils.getItemValue(item, "name");
String js = " onclick='javascript:del(\"user\"," + user + ") '";
html.a().append(js).href().quote().append(
getContext().getRequest().getContextPath()
+ "/Pagination.action?delete&user=" + user)
.quote().close();
html.append("刪除");
html.aEnd();
return html.toString();
}
});
return tableFacade.render(); // Return the Html.
}
..............
}

public class PaginationActionBean implements ActionBean {

//此id表示將要創建的table的id
	private String id = "user_table";
	private ActionBeanContext context;
	private String html;

	public String getHtml() {
		return html;
	}
	public void setHtml(String html) {
		this.html = html;
	}
........

	@DefaultHandler
	public Resolution display() {
		TableFacade tableFacade = TableFacadeFactory.createTableFacade(id, this
				.getContext().getRequest());

		addItems(tableFacade);
		html = html(tableFacade);
		ForwardResolution resolution = new ForwardResolution("/jsp/page.jsp");
		return resolution;
	}

	private void addItems(TableFacade tableFacade) {
		tableFacade.setItems(FillListData.getData());
	}

	private String html(TableFacade tableFacade) {

		tableFacade.setColumnProperties("name", "password", "deleteUser");

		HtmlTable table = (HtmlTable) tableFacade.getTable();
		table.setCaption("用戶列表");
		table.getTableRenderer().setWidth("600px");

		HtmlRow row = table.getRow();

		HtmlColumn name = row.getColumn("name");
		name.setTitle("名字");

		HtmlColumn password = row.getColumn("password");
		password.setTitle("密碼");

		HtmlColumn delete = row.getColumn("deleteUser");
		delete.setTitle("刪除");
		delete.setWidth("100px");

		// Using an anonymous class to implement a custom editor.
		// 用于演示在表格中增加超鏈接
		name.getCellRenderer().setCellEditor(new CellEditor() {
			public Object getValue(Object item, String property, int rowcount) {
				Object value = new BasicCellEditor().getValue(item, property,
						rowcount);
				HtmlBuilder html = new HtmlBuilder();
				html.a().href().quote().append("http://baidu.com").quote()
						.close();
				html.append(value);
				html.aEnd();
				return html.toString();
			}
		});

		delete.getCellRenderer().setCellEditor(new CellEditor() {
			public Object getValue(Object item, String property, int rowcount) {

				HtmlBuilder html = new HtmlBuilder();
				// 取得每一行的id號
				Object user = ItemUtils.getItemValue(item, "name");
				String js = " onclick='javascript:del(\"user\"," + user + ") '";
				html.a().append(js).href().quote().append(
						getContext().getRequest().getContextPath()
								+ "/Pagination.action?delete&user=" + user)
						.quote().close();
				html.append("刪除");
				html.aEnd();
				return html.toString();
			}
		});

		return tableFacade.render(); // Return the Html.
	}

..............
}

上面的代碼中最重要的就是那上html方法，此方法完成了整個表格的定制工作，包括鏈接在內。如果要重新設置每頁顯示的記錄數（默認每頁可顯示15，50，100），要么修改jmesa.properties文件，要么通過java代碼設置。修改配置文件的話，同時要修改兩個地方：

limit.rowSelect.maxRows=15
html.toolbar.maxRowsDroplist.increments=15,50,100

如果修改，必須滿足第一行的數字必須是第二行所有數字中的一個。用java代碼修改的也要遵照同樣的原則。

jsp代碼很簡單：

Html代碼

<script type="text/javascript"
src="${pageContext.request.contextPath}/js/jquery.js"></script>
<script type="text/javascript"
src="${pageContext.request.contextPath}/js/jquery.jmesa.js"></script>
<script type="text/javascript"
src="${pageContext.request.contextPath}/js/jmesa.js"></script>
<link rel="stylesheet" type="text/css" href="${pageContext.request.contextPath}/css/jmesa.css"></link>
</head>
<body>
<h1>Stripes Calculator</h1>
<form>
${actionBean.html}
<script type="text/javascript">
function onInvokeAction(id) {
createHiddenInputFieldsForLimitAndSubmit(id);
}
</script>
</form>
</body>

<script type="text/javascript"
              src="${pageContext.request.contextPath}/js/jquery.js"></script>
<script type="text/javascript"
              src="${pageContext.request.contextPath}/js/jquery.jmesa.js"></script>           
<script type="text/javascript"
              src="${pageContext.request.contextPath}/js/jmesa.js"></script> 
<link rel="stylesheet" type="text/css" href="${pageContext.request.contextPath}/css/jmesa.css"></link> 
</head>
<body>
<h1>Stripes Calculator</h1>

<form>
	${actionBean.html}
<script type="text/javascript">  
        function onInvokeAction(id) { 
            createHiddenInputFieldsForLimitAndSubmit(id);  
        }  
</script>  
</form>
</body>

上面這段代碼中，需要注意一下JS聲明的順序，而且還要申明一個form，不然分頁的時候JS會出錯。還要加上上面的那段JS代碼。

第二種方式是直接通過標簽的方式申明，因此需要在JSP頭部申明：

Html代碼

<%@ taglib uri="/WEB-INF/tld/jmesa.tld" prefix="jmesa" %>
.........
...............

<%@ taglib uri="/WEB-INF/tld/jmesa.tld" prefix="jmesa" %>
.........
...............

將${actionBean.html}替換成：

Html代碼

<jmesa:tableFacade id="user_table" items="${items}" var="bean" >
<jmesa:htmlTable width="600px">
<jmesa:htmlRow>
<jmesa:htmlColumn property="name"/>
<jmesa:htmlColumn property="password" title="Last Name"/>
</jmesa:htmlRow>
</jmesa:htmlTable>
</jmesa:tableFacade>

<jmesa:tableFacade id="user_table" items="${items}" var="bean" >
        <jmesa:htmlTable width="600px">               
            <jmesa:htmlRow>     
                <jmesa:htmlColumn property="name"/>
                <jmesa:htmlColumn property="password" title="Last Name"/>
            </jmesa:htmlRow>
        </jmesa:htmlTable> 
</jmesa:tableFacade>

這部分代碼的作用與上面action直接操縱表格的方式一樣，只是把工作轉移到JSP中。只是上面的${items}表示一個將要顯示的collection，不用再使用字符串的方式顯示。如果兩種方式都用的話，則以JSP中的方式為準。

jmesa的配置文件已經集成在JAR中，如果需要改變，可以將此文件復制出來，改變其內容，然后在web.xml重新指定其路徑：

Xml代碼

<context-param>
<param-name>jmesaPreferencesLocation</param-name>
<param-value>WEB-INF/jmesa.properties</param-value>
</context-param>

posted on 2011-09-06 11:56 sichuanxiaohuo 閱讀(1025) 評論(0) 編輯收藏所屬分類: jmesa

新用戶注冊刷新評論列表


只有注冊用戶登錄后才能發表評論。




網站導航: 博客園 IT新聞 Chat2DB C++博客博問

jmesa

導航

統計

留言簿

文章分類

文章檔案

link

搜索

最新評論