java 反射通过set、get 封装到实体Bean

private static final Logger log = LoggerFactory.getLogger(ParamWrapp.class);

//将页面参数动态封装到对象,防止参数丢失
public static Object modifyVideoEncode(Object object, HttpServletRequest req) {
if (object == null) {
return null;
}
Enumeration parameterNames = req.getParameterNames();
Class<?> clazz = object.getClass();
while (parameterNames.hasMoreElements()) {
try {
String name = (String) parameterNames.nextElement();
String value = req.getParameter(name);
System.out.println("name:" + name + " value:" + value);
Method get_Method = clazz.getMethod("get" + getMethodName(name));  //获取getMethod方法
Method set_Method = clazz.getMethod("set" + getMethodName(name), get_Method.getReturnType());//获得属性set方法
Class<?> c = get_Method.getReturnType();
String type = c.getName();
if (type.equals("long")) set_Method.invoke(object, Long.valueOf(value));  //对于类型 long
else if (type.equals("int")) set_Method.invoke(object, Integer.valueOf(value)); //对于int 类型
else set_Method.invoke(object, c.cast(value));//其他类型调用class.cast方法
} catch (Exception e) {
log.info("wrapp param is error ：" + e.toString());
}
}
return object;
}

// 把一个字符串的第一个字母大写、效率是最高的、
private static String getMethodName(String fildeName) {
byte[] items = fildeName.getBytes();
items[0] = (byte) ((char) items[0] - 'a' + 'A');
return new String(items);
}