反射的2种方法
    1.

    1. /**<br />     * Javabean转为map<br />     *<br />     * @param bean<br />     * @return<br />     * @throws Exception<br />     */<br />    public static Map<String, Object> bean2map(Object bean) throws Exception {<br />        Map<String, Object> map = new HashMap<>();<br />        //获取指定类（Person）的BeanInfo 对象<br />        **BeanInfo** beanInfo = Introspector.getBeanInfo(bean.getClass());<br />        //获取所有的属性描述器<br />       ** PropertyDescriptor[] **pds = beanInfo.getPropertyDescriptors();<br />        for (PropertyDescriptor pd : pds) {<br />            String key = pd.getName();<br />            Method getter = pd.getReadMethod();<br />            Object value = getter.invoke(bean);<br />            map.put(key, value);<br />        }<br />        return map;<br />    }<br />    <br />2.t = (T)list.get(i);<br />if(t.getClass().getName().equals("java.util.HashMap")){<br />Object obj = ((Map)t).get(entry.getValue().toString());<br />if(obj.toString().equals("0E-10")) {<br />    stringBuilder.append("0");<br />    stringBuilder.append(",");<br />}<br />else {<br />    stringBuilder.append(obj == null ? "" :obj);<br />    stringBuilder.append(",");<br />}<br />} else {<br />**//feild，是反射**<br />**Field** field = t.getClass().getDeclaredField(entry.getValue().toString());<br />//设置对象的访问权限，保证对private的属性的访问<br />field.setAccessible(true);<br />stringBuilder.append(field.get(t) == null ? "" : field.get(t));<br />stringBuilder.append(",");<br />                            }