关于JSONArray创建失败的问题

haitangrexue 2011-11-05 04:59:03

List list = new ArrayList();

		list.add(new Student("zhou", 26,Date.valueOf("1986-03-05")));

		list.add(new Student("zheng", 23,Date.valueOf("1999-04-21")));

		list.add(new Student("yu", 25,Date.valueOf("2000-03-05")));

		JSONArray array1 = JSONArray.fromObject(list);

		for(Object obj:array1){

			System.out.println(obj);

		}

Student.java
public class Student {
private String name;
private int id;
private Date birthday;
还有一些set get方法其中java.sql.Date

运行的时候在红色代码处报错

Exception in thread "main" net.sf.json.JSONException: java.lang.reflect.InvocationTargetException

	at net.sf.json.JSONObject._fromBean(JSONObject.java:953)

	at net.sf.json.JSONObject.fromObject(JSONObject.java:192)

	at net.sf.json.JSONObject._processValue(JSONObject.java:2774)

	at net.sf.json.JSONObject._setInternal(JSONObject.java:2798)

	at net.sf.json.JSONObject.setValue(JSONObject.java:1507)

	at net.sf.json.JSONObject._fromBean(JSONObject.java:940)

	at net.sf.json.JSONObject.fromObject(JSONObject.java:192)

	at net.sf.json.JSONArray._processValue(JSONArray.java:2557)

	at net.sf.json.JSONArray.processValue(JSONArray.java:2588)

	at net.sf.json.JSONArray.addValue(JSONArray.java:2575)

	at net.sf.json.JSONArray._fromCollection(JSONArray.java:1082)

	at net.sf.json.JSONArray.fromObject(JSONArray.java:145)

	at net.sf.json.JSONArray.fromObject(JSONArray.java:127)

	at test01.test2.main(test2.java:26)

Caused by: java.lang.reflect.InvocationTargetException

	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

	at java.lang.reflect.Method.invoke(Method.java:597)

	at org.apache.commons.beanutils.PropertyUtilsBean.invokeMethod(PropertyUtilsBean.java:1773)

	at org.apache.commons.beanutils.PropertyUtilsBean.getSimpleProperty(PropertyUtilsBean.java:1132)

	at org.apache.commons.beanutils.PropertyUtilsBean.getNestedProperty(PropertyUtilsBean.java:686)

	at org.apache.commons.beanutils.PropertyUtilsBean.getProperty(PropertyUtilsBean.java:715)

	at org.apache.commons.beanutils.PropertyUtils.getProperty(PropertyUtils.java:290)

	at net.sf.json.JSONObject._fromBean(JSONObject.java:928)

	... 13 more

Caused by: java.lang.IllegalArgumentException

	at java.sql.Date.getHours(Date.java:143)

	... 23 more