data转JSONObject

要将Date类型的数据转换为JSONObject，可以使用JsonConfig类来注册一个JsonValueProcessor，然后使用JSONObject.fromObject()方法进行转换。首先，创建一个JsonConfig对象，并使用registerJsonValueProcessor()方法注册一个处理Date类型的JsonValueProcessor。然后，创建一个User对象，并设置其属性，包括Date类型的属性。最后，使用JSONObject.fromObject()方法将User对象转换为JSONObject。以下是示例代码：

User user = new User();
user.setId(1000);
user.setName("万诗强");
user.setBirthday(new Date());

JsonConfig jsonConfig = new JsonConfig();
jsonConfig.registerJsonValueProcessor(Date.class, new JsonDateValueProcessor());

JSONObject jsonObject = JSONObject.fromObject(user, jsonConfig);

System.out.println(jsonObject.toString());

运行结果会输出类似于以下内容的JSONObject：

{"birthday":"2013-10-24 11:10:50","id":1000,"name":"万诗强"}

注意，JsonConfig和JsonDateValueProcessor类都是来自net.sf.json.JsonConfig包。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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