org.dromara.hutool.core.convert.impl

Class MapConverter

java.lang.Object

org.dromara.hutool.core.convert.ConverterWithRoot

org.dromara.hutool.core.convert.impl.MapConverter

All Implemented Interfaces:

Serializable, Converter, MatcherConverter

public class MapConverter
extends ConverterWithRoot
implements MatcherConverter, Serializable

Map 转换器，通过预定义key和value的类型，实现：

• Map 转 Map，key和value类型自动转换
• Bean 转 Map，字段和字段值类型自动转换

Since:

3.0.8

Author:

Looly

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static MapConverter	INSTANCE 单例

Fields inherited from class org.dromara.hutool.core.convert.ConverterWithRoot

rootConverter

Constructor Summary

Constructors

Constructor and Description
MapConverter(Converter rootConverter) 构造

Method Summary

Modifier and Type	Method and Description
Object	convert(Type targetType, Object value) 转换为指定类型 如果类型无法确定，将读取默认值的类型做为目标类型
Map<?,?>	convert(Type targetType, Type keyType, Type valueType, Object value) 转换对象为指定键值类型的指定类型Map
boolean	match(Type targetType, Class<?> rawType, Object value) 判断需要转换的对象是否匹配当前转换器，满足则转换，否则跳过

Methods inherited from class org.dromara.hutool.core.convert.ConverterWithRoot

getRootConverter

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.dromara.hutool.core.convert.MatcherConverter

match

Methods inherited from interface org.dromara.hutool.core.convert.Converter

convert, convert, identity

Field Detail

INSTANCE

public static final MapConverter INSTANCE

单例

Constructor Detail

MapConverter

public MapConverter(Converter rootConverter)

构造

Parameters:

rootConverter - 根转换器，用于转换Map中键值对中的值，非null

Method Detail

match

public boolean match(Type targetType,
                     Class<?> rawType,
                     Object value)

Description copied from interface: MatcherConverter

判断需要转换的对象是否匹配当前转换器，满足则转换，否则跳过

Specified by:

match in interface MatcherConverter

Parameters:

targetType - 转换的目标类型，不能为null

rawType - 目标原始类型，当targetType为Class时，和此参数一致，不能为null

value - 需要转换的值

Returns:

是否匹配

convert

public Object convert(Type targetType,
                      Object value)
               throws ConvertException

Description copied from interface: Converter

转换为指定类型
如果类型无法确定，将读取默认值的类型做为目标类型

Specified by:

convert in interface Converter

Parameters:

targetType - 目标Type，非泛型类使用

value - 原始值，如果对象实现了此接口，则value为this

Returns:

转换后的值

Throws:

ConvertException - 转换无法正常完成或转换异常时抛出此异常

convert

public Map<?,?> convert(Type targetType,
                        Type keyType,
                        Type valueType,
                        Object value)
                 throws ConvertException

转换对象为指定键值类型的指定类型Map

Parameters:

targetType - 目标的Map类型

keyType - 键类型

valueType - 值类型

value - 被转换的值

Returns:

转换后的Map

Throws:

ConvertException - 转换异常或不支持的类型