JAVA BeanUtil应用 一个类向另一个类转换

两个具有相同属性的pojo（对象）类相互转换。或父类向子类转换。

定义方法类MyBeanUtil 如下：

类MyBeanUtil 继承原有类BeanUtils

public class MyBeanUtil extends BeanUtils {
 protected static Format format = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
 
 public static void populate(Object bean, Map properties)
   throws IllegalAccessException, InvocationTargetException {
  // Do nothing unless both arguments have been specified
  if ((bean == null) || (properties == null)) {
   return;
  }
  // Loop through the property name/value pairs to be set
  Iterator names = properties.keySet().iterator();
  while (names.hasNext()) {
   String name = (String) names.next();
   // Identify the property name and value(s) to be assigned
   if (name == null) {
    continue;
   }
   Object value = properties.get(name);
   try {
    Class clazz = PropertyUtils.getPropertyType(bean, name);
    if (null == clazz) {
     continue;
    }
    String className = clazz.getName();
    if (className.equalsIgnoreCase("java.util.Date")) {
     if (value == null || value.equals("")) {
      continue;
     } else if(value.toString().length()==10) {
      setProperty(bean, name, (java.util.Date)format.parseObject((String) value+" 00:00:00"));
      continue;
     }else {
      setProperty(bean, name, (java.util.Date)format.parseObject((String) value));
      continue;
     }
    }
    setProperty(bean, name, value);
   } catch (Exception e) {
    continue;
   }
  }

 }
}

使用方法：

MyBeanUtil.populate(stoVO,MyBeanUtil.describe(sto));

stoVO：子类对象

sto:父类对象

在页面显示时，如果需要显示视图值。可以再stoVO类中写。