//将javabean实体类转为map类型,然后返回一个map类型的值 public static Map<String, Object> beanToMap(Object obj) { Map<String, Object> params = new HashMap<String, Object>(0); try { PropertyUtilsBean propertyUtilsBean = new PropertyUtilsBean(); PropertyDescriptor[] descriptors = propertyUtilsBean.getPropertyDescriptors(obj); for (int i = 0; i < descriptors.length; i++) { String name = descriptors[i].getName(); if (!"class".equals(name)) { params.put(name, propertyUtilsBean.getNestedProperty(obj, name)); } } } catch (Exception e) { e.printStackTrace(); } return params; }
放入上面方法的类需要 import java.beans.PropertyDescriptor;
需要引用两个jar包:commons-beanutils-1.9.2.jar commons-logging-1.2.jar
获取上面两个jar的网址分别是:http://commons.apache.org/beanutils/ http://commons.apache.org/proper/commons-logging/
注意:
如果只引用了commons-beanutils-1.9.2.jar 未引用 commons-beanutils-1.9.2.jar,控制台会报以下错误:
Exception in thread "main" java.lang.NoClassDefFoundError:org/apache/commons/logging/LogFactory
at org.apache.commons.beanutils.ConvertUtilsBean.<init>(ConvertUtilsBean.java:157)
at org.apache.commons.beanutils.BeanUtilsBean.<init>(BeanUtilsBean.java:117)
at org.apache.commons.beanutils.BeanUtilsBean$1.initialValue(BeanUtilsBean.java:68)
at org.apache.commons.beanutils.ContextClassLoaderLocal.get(ContextClassLoaderLocal.java:153)
at org.apache.commons.beanutils.BeanUtilsBean.getInstance(BeanUtilsBean.java:80)
at org.apache.commons.beanutils.BeanUtils.getProperty(BeanUtils.java:382)
at fighting.IntroSpectorDemo.main(IntroSpectorDemo.java:31)
原文链接:http://www.cnblogs.com/shifei/p/4584724.html
ps : 侵删。