将json对象转化为java对象？

TestBean tb = new TestBean();
tb.setName("闫燕飞");
tb.setSex("男");
List list = new ArrayList();
list.add("mother");
list.add("father");
tb.setParentName(list);
//将一个实体类对象转化为json对象
JSONObject jo1= JSONObject.fromObject(tb);

//将json对象转化为java对象(这里编译通过，执行的时候报异常)
TestBean tb1 = (TestBean)JSONSerializer.toJava(jo1);

异常：Exception in thread "main" java.lang.ClassCastException: net.sf.ezmorph.bean.MorphDynaBean cannot be cast to com.second.TestBean

加这两行在TestBean tb1 = (TestBean)JSONSerializer.toJava(jo1); 前面试试

net.sf.json.JsonConfig jsonConfig = new net.sf.json.JsonConfig();
jsonConfig.setRootClass(TestBean.class);

参考一下写法
net.sf.json.JsonConfig jsonConfig = new net.sf.json.JsonConfig();
jsonConfig.setRootClass(TestBean.class);
TestBean tb1 = (TestBean)JSONSerializer.toJava(jo1, jsonConfig);