net.sf.json.JSONObject依赖jar包，异常分析net.sf.json.JSONException

net.sf.json.JSONObject依赖jar包

可以直接引入一个jar包

		<dependency>
            <groupId>net.sf.json-lib</groupId>
            <artifactId>json-lib</artifactId>
            <version>2.4</version>
            <classifier>jdk15</classifier>
        </dependency>

或者是引入多个

<!-- JSONObject对象依赖的jar包 开始-->
        <dependency>
            <groupId>commons-beanutils</groupId>
            <artifactId>commons-beanutils</artifactId>
            <version>1.9.3</version>
        </dependency>
        <dependency>
            <groupId>commons-collections</groupId>
            <artifactId>commons-collections</artifactId>
            <version>3.2.1</version>
        </dependency>
        <dependency>
            <groupId>commons-lang</groupId>
            <artifactId>commons-lang</artifactId>
            <version>2.6</version>
        </dependency>
        <dependency>
            <groupId>commons-logging</groupId>
            <artifactId>commons-logging</artifactId>
            <version>1.1.1</version>
        </dependency>
        <dependency>
            <groupId>net.sf.ezmorph</groupId>
            <artifactId>ezmorph</artifactId>
            <version>1.0.6</version>
        </dependency>
        <dependency>
            <groupId>net.sf.json-lib</groupId>
            <artifactId>json-lib</artifactId>
            <version>2.2.3</version>
            <classifier>jdk15</classifier><!-- jdk版本 -->
        </dependency>
        <!-- Json依赖架包下载结束 -->

如果遇到报错:net.sf.json.JSONException

net.sf.json.JSONException: java.lang.reflect.InvocationTargetException

at net.sf.json.JSONObject.defaultBeanProcessing(JSONObject.java:818)
	at net.sf.json.JSONObject._fromBean(JSONObject.java:699)
	at net.sf.json.JSONObject.fromObject(JSONObject.java:172)
	at net.sf.json.AbstractJSON._processValue(AbstractJSON.java:274)
	at net.sf.json.JSONObject._processValue(JSONObject.java:2655)
	at net.sf.json.JSONObject.processValue(JSONObject.java:2721)
	at net.sf.json.JSONObject.setInternal(JSONObject.java:2736)
	at net.sf.json.JSONObject.setValue(JSONObject.java:1424)
	at net.sf.json.JSONObject.defaultBeanProcessing(JSONObject.java:765)
	at net.sf.json.JSONObject._fromBean(JSONObject.java:699)
	at net.sf.json.JSONObject.fromObject(JSONObject.java:172)
	at net.sf.json.JSONObject.fromObject(JSONObject.java:134)

本人报错原因是：
因为bean里有Date字段，且从数据库里读出来的是java.sql.Date赋值给了java.util.Date.转化成JSONArray时出错
解决办法：
1.将不适用Date类型，使用String类型
2.将java.sql.Date 转换为 java.util.Date类型