add XXXConvert

hutool-core/src/main/java/cn/hutool/core/convert/ConverterRegistry.java

@@ -13,11 +13,14 @@ import cn.hutool.core.convert.impl.ClassConverter;
 import cn.hutool.core.convert.impl.CollectionConverter;
 import cn.hutool.core.convert.impl.CurrencyConverter;
 import cn.hutool.core.convert.impl.DateConverter;
+import cn.hutool.core.convert.impl.DurationConverter;
 import cn.hutool.core.convert.impl.EnumConverter;
 import cn.hutool.core.convert.impl.LocaleConverter;
 import cn.hutool.core.convert.impl.MapConverter;
 import cn.hutool.core.convert.impl.NumberConverter;
+import cn.hutool.core.convert.impl.OptionalConverter;
 import cn.hutool.core.convert.impl.PathConverter;
+import cn.hutool.core.convert.impl.PeriodConverter;
 import cn.hutool.core.convert.impl.PrimitiveConverter;
 import cn.hutool.core.convert.impl.ReferenceConverter;
 import cn.hutool.core.convert.impl.StackTraceElementConverter;
@@ -43,18 +46,21 @@ import java.net.URI;
 import java.net.URL;
 import java.nio.charset.Charset;
 import java.nio.file.Path;
+import java.time.Duration;
 import java.time.Instant;
 import java.time.LocalDate;
 import java.time.LocalDateTime;
 import java.time.LocalTime;
 import java.time.OffsetDateTime;
 import java.time.OffsetTime;
+import java.time.Period;
 import java.time.ZonedDateTime;
 import java.util.Calendar;
 import java.util.Collection;
 import java.util.Currency;
 import java.util.Locale;
 import java.util.Map;
+import java.util.Optional;
 import java.util.TimeZone;
 import java.util.UUID;
 import java.util.concurrent.ConcurrentHashMap;
@@ -385,6 +391,8 @@ public class ConverterRegistry implements Serializable{
 		defaultConverterMap.put(ZonedDateTime.class, new TemporalAccessorConverter(ZonedDateTime.class));
 		defaultConverterMap.put(OffsetDateTime.class, new TemporalAccessorConverter(OffsetDateTime.class));
 		defaultConverterMap.put(OffsetTime.class, new TemporalAccessorConverter(OffsetTime.class));
+		defaultConverterMap.put(Period.class, new PeriodConverter());
+		defaultConverterMap.put(Duration.class, new DurationConverter());
 
 		// Reference
 		defaultConverterMap.put(WeakReference.class, new ReferenceConverter(WeakReference.class));// since 3.0.8
@@ -400,6 +408,7 @@ public class ConverterRegistry implements Serializable{
 		defaultConverterMap.put(Currency.class, new CurrencyConverter());// since 3.0.8
 		defaultConverterMap.put(UUID.class, new UUIDConverter());// since 4.0.10
 		defaultConverterMap.put(StackTraceElement.class, new StackTraceElementConverter());// since 4.5.2
+		defaultConverterMap.put(Optional.class, new OptionalConverter());// since 5.0.0
 
 		return this;
 	}

hutool-core/src/main/java/cn/hutool/core/convert/impl/DurationConverter.java

@@ -0,0 +1,30 @@
+package cn.hutool.core.convert.impl;
+
+import cn.hutool.core.convert.AbstractConverter;
+
+import java.time.Duration;
+import java.time.Period;
+import java.time.temporal.TemporalAmount;
+
+/**
+ * 
+ * {@link Duration}对象转换器
+ * 
+ * @author Looly
+ * @since 5.0.0
+ */
+public class DurationConverter extends AbstractConverter<Duration> {
+	private static final long serialVersionUID = 1L;
+
+	@Override
+	protected Duration convertInternal(Object value) {
+		if(value instanceof TemporalAmount){
+			return Duration.from((TemporalAmount) value);
+		} else if(value instanceof Long){
+			return Duration.ofMillis((Long) value);
+		} else {
+			return Duration.parse(convertToStr(value));
+		}
+	}
+
+}

hutool-core/src/main/java/cn/hutool/core/convert/impl/OptionalConverter.java

@@ -0,0 +1,23 @@
+package cn.hutool.core.convert.impl;
+
+import cn.hutool.core.convert.AbstractConverter;
+
+import java.time.Period;
+import java.util.Optional;
+
+/**
+ * 
+ * {@link Optional}对象转换器
+ * 
+ * @author Looly
+ * @since 5.0.0
+ */
+public class OptionalConverter extends AbstractConverter<Optional<?>> {
+	private static final long serialVersionUID = 1L;
+
+	@Override
+	protected Optional<?> convertInternal(Object value) {
+		return Optional.ofNullable(value);
+	}
+
+}

hutool-core/src/main/java/cn/hutool/core/convert/impl/PeriodConverter.java

@@ -0,0 +1,30 @@
+package cn.hutool.core.convert.impl;
+
+import cn.hutool.core.convert.AbstractConverter;
+
+import java.time.Period;
+import java.time.temporal.TemporalAmount;
+import java.util.Optional;
+
+/**
+ * 
+ * {@link Period}对象转换器
+ * 
+ * @author Looly
+ * @since 5.0.0
+ */
+public class PeriodConverter extends AbstractConverter<Period> {
+	private static final long serialVersionUID = 1L;
+
+	@Override
+	protected Period convertInternal(Object value) {
+		if(value instanceof TemporalAmount){
+			return Period.from((TemporalAmount) value);
+		}else if(value instanceof Integer){
+			return Period.ofDays((Integer) value);
+		} else {
+			return Period.parse(convertToStr(value));
+		}
+	}
+
+}

hutool-core/src/main/java/cn/hutool/core/convert/impl/TemporalAccessorConverter.java

@@ -10,7 +10,6 @@ import java.time.LocalTime;
 import java.time.OffsetDateTime;
 import java.time.OffsetTime;
 import java.time.ZoneId;
-import java.time.ZoneOffset;
 import java.time.ZonedDateTime;
 import java.time.format.DateTimeFormatter;
 import java.time.temporal.TemporalAccessor;

hutool-core/src/main/java/cn/hutool/core/date/DateTime.java

@@ -217,7 +217,6 @@ public class DateTime extends Date {
 	 *
 	 * @param dateStr Date字符串
 	 * @param formatter 格式化器,{@link DateTimeFormatter}
-	 * @return DateTime对象
 	 * @since 5.0.0
 	 */
 	public DateTime(CharSequence dateStr, DateTimeFormatter formatter) {

hutool-core/src/main/java/cn/hutool/core/date/DateUtil.java

@@ -546,6 +546,21 @@ public class DateUtil {
 	}
 
 	/**
+	 * 根据特定格式格式化日期
+	 *
+	 * @param date 被格式化的日期
+	 * @param format {@link SimpleDateFormat}
+	 * @return 格式化后的字符串
+	 * @since 5.0.0
+	 */
+	public static String format(Date date, DateTimeFormatter format) {
+		if (null == format || null == date) {
+			return null;
+		}
+		return format.format(date.toInstant());
+	}
+
+	/**
 	 * 格式化日期时间<br>
 	 * 格式 yyyy-MM-dd HH:mm:ss
 	 * 

hutool-core/src/test/java/cn/hutool/core/convert/TemporalAccessorConverterTest.java

@@ -1,5 +1,6 @@
 package cn.hutool.core.convert;
 
+import cn.hutool.core.date.DateUtil;
 import org.junit.Assert;
 import org.junit.Test;
 
@@ -15,8 +16,12 @@ public class TemporalAccessorConverterTest {
 
 	@Test
 	public void toInstantTest(){
-		Instant instant = Convert.convert(Instant.class, "2019-02-18");
-		Assert.assertNotNull(instant);
+		String dateStr = "2019-02-18";
+
+		// 通过转换获取的Instant为UTC时间
+		Instant instant = Convert.convert(Instant.class, dateStr);
+		Instant instant1 = DateUtil.parse(dateStr).toInstant();
+		Assert.assertEquals(instant1, instant);
 	}
 
 	@Test

hutool-core/src/test/java/cn/hutool/core/io/FileUtilTest.java

@@ -75,7 +75,7 @@ public class FileUtilTest {
 	}
 
 	@Test
-	public void copyTest() throws Exception {
+	public void copyTest() {
 		File srcFile = FileUtil.file("hutool.jpg");
 		File destFile = FileUtil.file("hutool.copy.jpg");
 
@@ -87,7 +87,7 @@ public class FileUtilTest {
 
 	@Test
 	@Ignore
-	public void copyFilesFromDir() throws Exception {
+	public void copyFilesFromDir() {
 		File srcFile = FileUtil.file("D:\\驱动");
 		File destFile = FileUtil.file("d:\\驱动备份");
 
@@ -132,8 +132,6 @@ public class FileUtilTest {
 		Assert.assertEquals("/bar", FileUtil.normalize("//server/../bar"));
 		Assert.assertEquals("C:/bar", FileUtil.normalize("C:\\foo\\..\\bar"));
 		Assert.assertEquals("C:/bar", FileUtil.normalize("C:\\..\\bar"));
-		Assert.assertEquals("~/bar/", FileUtil.normalize("~/foo/../bar/"));
-		Assert.assertEquals("bar", FileUtil.normalize("~/../bar"));
 		Assert.assertEquals("bar", FileUtil.normalize("../../bar"));
 		Assert.assertEquals("C:/bar", FileUtil.normalize("/C:/bar"));
 
@@ -141,6 +139,12 @@ public class FileUtilTest {
 	}
 
 	@Test
+	public void normalizeHomePathTest() {
+		String home = FileUtil.getUserHomePath().replace('\\', '/');
+		Assert.assertEquals(home + "/bar/", FileUtil.normalize("~/foo/../bar/"));
+	}
+
+	@Test
 	public void normalizeClassPathTest() {
 		Assert.assertEquals("", FileUtil.normalize("classpath:"));
 	}