通过反射的方式比通过转json再转的方式耗时少很多，代码如下
public static Map<String, Object> objectToMap(Object obj) throws Exception {
if (obj == null) {
return null;
}
Map<String, Object> map = new HashMap();
Field[] declaredFields = obj.getClass().getDeclaredFields();
for (Field field : declaredFields) {
field.setAccessible(true);
map.put(field.getName(), field.get(obj));
}
return map;
}
mab转换为bean
public static Object mapToObject(Map<String, Object> map, Class<?> beanClass) throws IllegalAccessException, InstantiationException {
if (map == null){
return null;
}
Object obj = beanClass.newInstance();
Field[] fields = obj.getClass().getDeclaredFields();
for (Field field : fields) {
int mod = field.getModifiers();
if (Modifier.isStatic(mod) || Modifier.isFinal(mod)) {
continue;
}
field.setAccessible(true);
field.set(obj, map.get(field.getName()));
}
return obj;
}
