Java利用反射自动封装成实体对象的方法

//获取页面数据，自动封装成bean对象
public List getObjectList(Class clazz,String[] rowNos) throws Exception{
        List objList = new ArrayList();
        for(int i=0;rowNos!=null && i<rowNos.length;i++){
            //创建对象实例
            Object object = clazz.newInstance();
            //获取类声明的属性
            Field[] fields = clazz.getDeclaredFields();
            
            StringBuffer buffer = null;
            //遍历属性，执行封装
            for(int j=0;j<fields.length;j++){
                //获取属性的名字
                String fieldName = fields[j].getName();
                //得到参数的名字
                String paraName = fields[j].getName()+rowNos[i];
                
                //如果获取参数值为空则继续循环
                String value = getValueNull(paraName);
                if(value==null){
                    continue;
                }
                
                //参数值
                Object[] paramValue =new Object[1];
                if(fields[j].getType().toString().equals("class java.lang.String")){
                    paramValue[0]=value;
                }
                if(fields[j].getType().toString().equals("class java.lang.Integer")){
                    paramValue[0]=new Integer(value);
                }
                if(fields[j].getType().toString().equals("class java.lang.Double")){
                    paramValue[0]=new Double(value);
                }
                if(fields[j].getType().toString().equals("class java.util.Date")){
                    SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
                    paramValue[0]=sdf.parse(value);
                }
                
                //参数类型
                Class[] paramType= {fields[j].getType()};
                
                //得到set方法的名字
                buffer = new StringBuffer("set");
                buffer.append(fieldName.substring(0, 1).toUpperCase());
                buffer.append(fieldName.substring(1));
                //获取放回
                Method method = clazz.getDeclaredMethod(buffer.toString(), paramType);
                //执行方法
                method.invoke(object,paramValue);
            }
            //将当前对象放到list中
            objList.add(object);
        }
        return objList;
}