org.apache.commons.beanutils.BeanUtils 自定义转换 java 8 localdatetime 类

package com.doctor.beanutil;import java.lang.reflect.InvocationTargetException;import java.time.LocalDateTime;import java.time.format.DateTimeFormatter;import java.util.Map;import org.apache.commons.beanutils.BeanUtils;import org.apache.commons.beanutils.ConvertUtils;import org.apache.commons.beanutils.PropertyUtils;import org.apache.commons.beanutils.SuppressPropertiesBeanIntrospector;import org.apache.commons.beanutils.converters.AbstractConverter;import org.apache.commons.beanutils.converters.StringConverter;import org.apache.commons.lang3.StringUtils;import com.google.common.base.MoreObjects;/** * 自定义转换格式　　　 * @author doctor * * @since 2014年11月19日 下午11:01:08 */public class BeanUtilPractice2 {static {PropertyUtils.clearDescriptors();PropertyUtils.addBeanIntrospector(SuppressPropertiesBeanIntrospector.SUPPRESS_CLASS);ConvertUtils.deregister(StringConverter.class);ConvertUtils.register(new MyStringConverter(), String.class);ConvertUtils.register(new LocalDateTimeConverter(), LocalDateTime.class);}public static void main(String[] args) throws IllegalAccessException, InvocationTargetException, NoSuchMethodException {Person person = new Person("docotor", LocalDateTime.now(), 4677);BeanUtils.describe(person).forEach((k, v) -> System.out.println(k + ":" + v));Map<String, String> describe = BeanUtils.describe(person);Person person2 = new Person();BeanUtils.populate(person2, describe);System.out.println(person2);}public static class Person {private String name;private LocalDateTime birth;private Integer age;public Person() {}public Person(String name, LocalDateTime birth, Integer age) {this.name = name;this.birth = birth;this.age = age;}public String getName() {return name;}public void setName(String name) {this.name = name;}public LocalDateTime getBirth() {return birth;}public void setBirth(LocalDateTime birth) {this.birth = birth;}public Integer getAge() {return age;}public void setAge(Integer age) {this.age = age;}@Overridepublic String toString() {return MoreObjects.toStringHelper(this).add("name", getName()).add("age", getAge()).add("birth", getBirth()).toString();}}/** * 自定义格式转换为字符串形式　转换器 *  * @author doctor * * @since 2014年11月19日 下午10:38:07 */public static final class MyStringConverter extends AbstractConverter {private String timePattern = "yyyy-MM-dd HH:mm:ss";private DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern(timePattern);public MyStringConverter() {super();}public MyStringConverter(String timePattern) {super();if (StringUtils.isNotBlank(timePattern) && !this.timePattern.equals(timePattern)) {this.timePattern = timePattern;dateTimeFormatter = DateTimeFormatter.ofPattern(timePattern);}}public MyStringConverter(Object defaultValue) {super(defaultValue);}@Overrideprotected Class<?> getDefaultType() {return String.class;}@Overrideprotected <T> T convertToType(Class<T> type, Object value) throws Throwable {// We have to support Object, too, because this class is sometimes// used for a standard to Object conversionif (String.class.equals(type) || Object.class.equals(type)) {return type.cast(value.toString());}throw conversionException(type, value);}/** * 自己加上 */@Overrideprotected String convertToString(Object value) throws Throwable {if (value.getClass().equals(LocalDateTime.class)) {return LocalDateTime.class.cast(value).format(dateTimeFormatter);}return super.convertToString(value);}}/** * LocalDateTime 从字符串到LocalDateTime的转换 * @author doctor * * @since 2014年11月19日 下午11:00:17 */public static final class LocalDateTimeConverter extends AbstractConverter {private String timePattern = "yyyy-MM-dd HH:mm:ss";private DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern(timePattern);public LocalDateTimeConverter() {super();}public LocalDateTimeConverter(String timePattern) {super();if (StringUtils.isNotBlank(timePattern) && !this.timePattern.equals(timePattern)) {this.timePattern = timePattern;dateTimeFormatter = DateTimeFormatter.ofPattern(timePattern);}}public LocalDateTimeConverter(Object defaultValue) {super(defaultValue);}@Overrideprotected Class<?> getDefaultType() {return LocalDateTime.class;}@Overrideprotected <T> T convertToType(Class<T> type, Object value) throws Throwable {// We have to support Object, too, because this class is sometimes// used for a standard to Object conversionif (LocalDateTime.class.equals(type)) {return type.cast(LocalDateTime.parse(value.toString(), dateTimeFormatter));}throw conversionException(type, value);}}}