在JSP代码中输出JSON格式数据

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JSON-taglib是一套JSP标签库用于在JSP代码中输出JSON格式的数据。
JSON-taglib利用json:array, json:object和json:property来实现数据格式的转换。

下面是具体用法:

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.

调用方法:
  1. <%@taglibprefix= "json" uri= "http://www.atg.com/taglibs/json" %>
  2. <json:object>
  3. <json:propertyname= "itemCount" value= "${cart.itemCount}" />
  4. <json:propertyname= "subtotal" value= "${cart.subtotal}" />
  5. <json:arrayname= "items" var= "item" items= "${cart.lineItems}" >
  6. <json:object>
  7. <json:propertyname= "title" value= "${item.title}" />
  8. <json:propertyname= "description" value= "${item.description}" />
  9. <json:propertyname= "imageUrl" value= "${item.imageUrl" />
  10. <json:propertyname= "price" value= "${item.price}" />
  11. <json:propertyname= "qty" value= "${item.qty}" />
  12. </json:object>
  13. </json:array>
  14. </json:object>
JOSN输出结果:
  1. {
  2. itemCount:2,
  3. subtotal: "$15.50" ,
  4. items:[
  5. {
  6. title: "TheBigBookofFoo" ,
  7. description: "BestsellingbookofFoobyA.N.Other" ,
  8. imageUrl: "/images/books/12345.gif" ,
  9. price: "$10.00" ,
  10. qty:1
  11. },
  12. {
  13. title: "JavascriptPocketReference" ,
  14. description: "Handypocket-sizedreferencefortheJavascriptlanguage" ,
  15. imageUrl: "/images/books/56789.gif" ,
  16. price: "$5.50" ,
  17. qty:1
  18. }
  19. ]
  20. }
Be sure to check out the examples or the tutorial for more information about how to use the taglib.
官网: http://json-taglib.sourceforge.net/

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在JSP代码中输出JSON格式数据


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