JSON-taglib是一套JSP標籤庫用於在JSP代碼中輸出JSON格式的資料。
JSON-taglib利用json:array, json:object和json:property來實現資料格式的轉換。
下面是具體用法:
Just drop the json-taglib.jar file into the WEB-INF/lib directory of your web-application.
Here's a quick example of how the taglib could be used with an AJAX e-commerce shopping cart. Check out the examples or the tutorial for full details of how to use the taglib.
調用方法:
- <%@ taglib prefix="json" uri="http://www.atg.com/taglibs/json" %>
- <json:object>
- <json:property name="itemCount" value="${cart.itemCount}"/>
- <json:property name="subtotal" value="${cart.subtotal}"/>
- <json:array name="items" var="item" items="${cart.lineItems}">
- <json:object>
- <json:property name="title" value="${item.title}"/>
- <json:property name="description" value="${item.description}"/>
- <json:property name="imageUrl" value="${item.imageUrl"/>
- <json:property name="price" value="${item.price}"/>
- <json:property name="qty" value="${item.qty}"/>
- </json:object>
- </json:array>
- </json:object>
JOSN輸出結果:
- {
- itemCount: 2,
- subtotal: "$15.50",
- items:[
- {
- title: "The Big Book of Foo",
- description: "Bestselling book of Foo by A.N. Other",
- imageUrl: "/images/books/12345.gif",
- price: "$10.00",
- qty: 1
- },
- {
- title: "Javascript Pocket Reference",
- description: "Handy pocket-sized reference for the Javascript language",
- imageUrl: "/images/books/56789.gif",
- price: "$5.50",
- qty: 1
- }
- ]
- }
Be sure to check out the examples or the tutorial for more information about how to use the taglib.
官網:http://json-taglib.sourceforge.net/