反射方法,该怎么解决_J2EE

反射方法
public static void main（String[] args）{
User u = new User();
User t = new User();
t = findIt（u）;
}
class Object findIt(Object obj)｛
String test = "userId:1;userName:frank;password:1234;date:1328241269734;count:1";
//如何实现

｝

这个代码如何实现，通过u传给findIt方法把字符串中的值写道t当中返回

------解决方案--------------------
String[] str = test.split(";");
Class<User> clazz = User.class;
User user = new User();
for(String str1;str){
Field field = clazz.getField(str1.split(":")[0]);//根据字段名获取字段对象
field.setAccessible(true);//将该字段设置为可访问
field.setValue(user,str1.split(":")[1]);//给user对象上的该字段赋值
};
------解决方案--------------------
String[] str = test.split(";");
Class<User> clazz = User.class;
User user = new User();
for(String str1;str){
Field field = clazz.getField(str1.split(":")[0]);//根据字段名获取字段对象
field.setAccessible(true);//将该字段设置为可访问
field.set(user,str1.split(":")[1]);//给user对象上的该字段赋值
};
搞错了 field.set(user,str1.split(":")[1]);//给user对象上的该字段赋值(这个地方改一下)
------解决方案--------------------

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String[] objs = test.split(";");
Object objReturn = ……

------解决方案--------------------

Java code

public class ReflectTest {    public static void main(String[] args) {        User user = (User) test(                "userId:1;userName:frank;password:1234;date:1328241269734;count:1",                User.class);        System.out.println(user.getUserName());    }    private static Object test(String userStr, Class<?> clazz) {        try {            String[] str = userStr.split(";");            Object user = clazz.newInstance();// 初始化一个对象            Field[] fields = clazz.getDeclaredFields();// 获取该对象所有字段            for (String str1 : str) {                for (Field field : fields) {                    String c = field.getType().getName();// 字段类型                    if (field.getName().equals(str1.split(":")[0])) {                        field.setAccessible(true);// 把字段设置为可访问                        if (c.equals("int")) {                            field.setInt(user, Integer                                    .parseInt(str1.split(":")[1]));                        } else if (c.equals("java.lang.String")) {                            field.set(user, str1.split(":")[1]);                        } else if (c.equals("java.lang.long")) {                            field.setLong(user, Long                                    .parseLong(str1.split(":")[1]));                        }                    }                }            }            return user;        } catch (Exception e) {            e.printStackTrace();        }        return null;    }}