map 与object之间互相转化

来源:互联网 发布:淘宝直播印记怎么弄 编辑:程序博客网 时间:2024/06/06 15:45


import java.beans.BeanInfo;
import java.beans.IntrospectionException;
import java.beans.Introspector;
import java.beans.PropertyDescriptor;
import java.lang.reflect.InvocationTargetException;
import java.util.Map;
import java.util.logging.Logger;
import org.apache.commons.beanutils.BeanUtils;

/**
 * map转成对象
 * */
public class MapToObject {
 @SuppressWarnings("unused")
 private static Logger LOGGER = Logger
   .getLogger(MapToObject.class.getName());

 public static <T> T mapConvertBean(Class<T> type, Map<String, Object> map) {
  T t = null;
  try {
   BeanInfo beanInfo = Introspector.getBeanInfo(type);
   // 获取类属性  
   t = type.newInstance();
   for (PropertyDescriptor descriptor : beanInfo.getPropertyDescriptors()) {
    String propertyName = descriptor.getName();
    System.out.println("------------"+propertyName);
    if (map.containsKey(propertyName)) {
     System.out.println("------------"+map.get(propertyName));
     descriptor.getWriteMethod().invoke(t, map.get(propertyName));
    }
   }
  } catch (IntrospectionException e) {
   e.printStackTrace();
  } catch (IllegalArgumentException e) {
   e.printStackTrace();
  } catch (IllegalAccessException e) {
   e.printStackTrace();
  } catch (InvocationTargetException e) {
   e.printStackTrace();
  } catch (InstantiationException e) {
   e.printStackTrace();
  }
  return t;
 }

 @SuppressWarnings("unchecked")
 public static Map<String, Object> beanConvertMap(Object o) {
  try {
   Map<String, Object> beanMap = BeanUtils.describe(o);
   return beanMap;
  } catch (IllegalAccessException e) {
   e.printStackTrace();
  } catch (InvocationTargetException e) {
   e.printStackTrace();
  } catch (NoSuchMethodException e) {
   e.printStackTrace();
  }
  return null;
 }
}