public class Dict extends LinkedHashMap<String,Object> implements BasicTypeGetter<String>
AbstractMap.SimpleEntry<K,V>, AbstractMap.SimpleImmutableEntry<K,V>| Constructor and Description |
|---|
Dict()
构造
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Dict(boolean caseInsensitive)
构造
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Dict(int initialCapacity)
构造
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Dict(int initialCapacity,
boolean caseInsensitive)
构造
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Dict(int initialCapacity,
float loadFactor)
构造
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Dict(int initialCapacity,
float loadFactor,
boolean caseInsensitive)
构造
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Dict(Map<String,Object> m)
构造
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| Modifier and Type | Method and Description |
|---|---|
Dict |
clone() |
Object |
compute(String key,
BiFunction<? super String,? super Object,?> remappingFunction) |
Object |
computeIfAbsent(String key,
Function<? super String,?> mappingFunction) |
Object |
computeIfPresent(String key,
BiFunction<? super String,? super Object,?> remappingFunction) |
boolean |
containsKey(Object key) |
static Dict |
create()
创建Dict
|
Dict |
filter(String... keys)
过滤Map保留指定键值对，如果键不存在跳过
|
Object |
get(Object key) |
<T> T |
get(String attr,
T defaultValue)
获得特定类型值
|
<T> T |
getBean(String attr)
获得特定类型值
|
BigDecimal |
getBigDecimal(String attr)
获取BigDecimal型属性值
|
BigInteger |
getBigInteger(String attr)
获取BigInteger型属性值
|
Boolean |
getBool(String attr)
获取boolean型属性值
|
<T> T |
getByPath(String expression)
通过表达式获取JSON中嵌套的对象
.表达式，可以获取Bean对象中的属性（字段）值或者Map中key对应的值 []表达式，可以获取集合等对象中对应index的值 表达式栗子： persion persion.name persons[3] person.friends[5].name |
<T> T |
getByPath(String expression,
Class<T> resultType)
通过表达式获取JSON中嵌套的对象
.表达式，可以获取Bean对象中的属性（字段）值或者Map中key对应的值 []表达式，可以获取集合等对象中对应index的值 表达式栗子： persion persion.name persons[3] person.friends[5].name 获取表达式对应值后转换为对应类型的值 |
Byte |
getByte(String attr)
获取byte型属性值
|
byte[] |
getBytes(String attr) |
Character |
getChar(String attr)
获取char型属性值
|
Date |
getDate(String attr)
获取Date类型值
|
Double |
getDouble(String attr)
获取double型属性值
|
<E extends Enum<E>> |
getEnum(Class<E> clazz,
String key)
获得Enum类型的值
|
Float |
getFloat(String attr)
获取float型属性值
|
Integer |
getInt(String attr)
获取int型属性值
|
Long |
getLong(String attr)
获取long型属性值
|
Number |
getNumber(String attr) |
Object |
getObj(String key)
获取Object属性值
|
Object |
getOrDefault(Object key,
Object defaultValue) |
Short |
getShort(String attr)
获取short型属性值
|
String |
getStr(String attr)
获取字符串型属性值
|
Time |
getTime(String attr) |
Timestamp |
getTimestamp(String attr) |
Object |
merge(String key,
Object value,
BiFunction<? super Object,? super Object,?> remappingFunction) |
static Dict |
of(Object... keysAndValues)
根据给定的键值对数组创建Dict对象，传入参数必须为key,value,key,value...
|
static Dict |
of(Pair<String,Object>... pairs)
根据给定的Pair数组创建Dict对象
|
static <T> Dict |
parse(T bean)
将PO对象转为Dict
|
<T> Dict |
parseBean(T bean)
将值对象转换为Dict
类名会被当作表名，小写第一个字母 |
<T> Dict |
parseBean(T bean,
boolean isToUnderlineCase,
boolean ignoreNullValue)
将值对象转换为Dict
类名会被当作表名，小写第一个字母 |
Object |
put(String key,
Object value) |
void |
putAll(Map<? extends String,?> m) |
Object |
putIfAbsent(String key,
Object value) |
Object |
remove(Object key) |
boolean |
remove(Object key,
Object value) |
<T extends Dict> |
removeEqual(T dict,
String... withoutNames)
与给定实体对比并去除相同的部分
此方法用于在更新操作时避免所有字段被更新，跳过不需要更新的字段 version from 2.0.0 |
Object |
replace(String key,
Object value) |
boolean |
replace(String key,
Object oldValue,
Object newValue) |
Dict |
set(String attr,
Object value)
设置列
|
Dict |
setFields(Func0<?>... fields)
通过lambda批量设置值
实际使用时，可以使用getXXX的方法引用来完成键值对的赋值： User user = GenericBuilder.of(User::new).with(User::setUsername, "hutool").build(); Dict.create().setFields(user::getNickname, user::getUsername); |
Dict |
setIgnoreNull(String attr,
Object value)
设置列，当键或值为null时忽略
|
<T> T |
toBean(Class<T> clazz)
填充Value Object对象
|
<T> T |
toBean(T bean)
转换为Bean对象
|
<T> T |
toBean(T bean,
boolean isToCamelCase)
转换为Bean对象
|
<T> T |
toBeanIgnoreCase(Class<T> clazz)
填充Value Object对象，忽略大小写
|
<T> T |
toBeanIgnoreCase(T bean)
转换为Bean对象
|
<T> T |
toBeanWithCamelCase(T bean)
转换为Bean对象,并使用驼峰法模式转换
|
clear, containsValue, entrySet, forEach, keySet, removeEldestEntry, replaceAll, valuesequals, hashCode, toStringpublic Dict()
public Dict(boolean caseInsensitive)
caseInsensitive - 是否大小写不敏感public Dict(int initialCapacity)
initialCapacity - 初始容量public Dict(int initialCapacity,
boolean caseInsensitive)
initialCapacity - 初始容量caseInsensitive - 是否大小写不敏感public Dict(int initialCapacity,
float loadFactor)
initialCapacity - 初始容量loadFactor - 容量增长因子，0~1，即达到容量的百分之多少时扩容public Dict(int initialCapacity,
float loadFactor,
boolean caseInsensitive)
initialCapacity - 初始容量loadFactor - 容量增长因子，0~1，即达到容量的百分之多少时扩容caseInsensitive - 是否大小写不敏感public static Dict create()
public static <T> Dict parse(T bean)
T - Bean类型bean - Bean对象@SafeVarargs public static Dict of(Pair<String,Object>... pairs)
pairs - 键值对public static Dict of(Object... keysAndValues)
奇数参数必须为key，key最后会转换为String类型。
偶数参数必须为value，可以为任意类型。
Dict dict = Dict.of(
"RED", "#FF0000",
"GREEN", "#00FF00",
"BLUE", "#0000FF"
);
keysAndValues - 键值对列表，必须奇数参数为key，偶数参数为valuepublic <T> T toBean(T bean)
T - Bean类型bean - Beanpublic <T> T toBeanIgnoreCase(T bean)
T - Bean类型bean - Beanpublic <T> T toBean(T bean,
boolean isToCamelCase)
T - Bean类型bean - BeanisToCamelCase - 是否转换为驼峰模式public <T> T toBeanWithCamelCase(T bean)
T - Bean类型bean - Beanpublic <T> T toBean(Class<T> clazz)
T - Bean类型clazz - Value Object（或者POJO）的类public <T> T toBeanIgnoreCase(Class<T> clazz)
T - Bean类型clazz - Value Object（或者POJO）的类public <T> Dict parseBean(T bean)
T - Bean类型bean - 值对象public <T> Dict parseBean(T bean, boolean isToUnderlineCase, boolean ignoreNullValue)
T - Bean类型bean - 值对象isToUnderlineCase - 是否转换为下划线模式ignoreNullValue - 是否忽略值为空的字段public <T extends Dict> void removeEqual(T dict, String... withoutNames)
T - 字典对象类型dict - 字典对象withoutNames - 不需要去除的字段名public Dict filter(String... keys)
keys - 键列表public Dict setIgnoreNull(String attr, Object value)
attr - 属性value - 值public Object getObj(String key)
BasicTypeGettergetObj in interface BasicTypeGetter<String>key - 属性名public <T> T getBean(String attr)
T - 值类型attr - 字段名public <T> T get(String attr, T defaultValue)
T - 值类型attr - 字段名defaultValue - 默认值public String getStr(String attr)
BasicTypeGettergetStr in interface BasicTypeGetter<String>attr - 字段名public Integer getInt(String attr)
BasicTypeGettergetInt in interface BasicTypeGetter<String>attr - 字段名public Long getLong(String attr)
BasicTypeGettergetLong in interface BasicTypeGetter<String>attr - 字段名public Float getFloat(String attr)
BasicTypeGettergetFloat in interface BasicTypeGetter<String>attr - 字段名public Short getShort(String attr)
BasicTypeGettergetShort in interface BasicTypeGetter<String>attr - 属性名public Character getChar(String attr)
BasicTypeGettergetChar in interface BasicTypeGetter<String>attr - 属性名public Double getDouble(String attr)
BasicTypeGettergetDouble in interface BasicTypeGetter<String>attr - 属性名public Byte getByte(String attr)
BasicTypeGettergetByte in interface BasicTypeGetter<String>attr - 属性名public Boolean getBool(String attr)
BasicTypeGettergetBool in interface BasicTypeGetter<String>attr - 字段名public BigDecimal getBigDecimal(String attr)
BasicTypeGettergetBigDecimal in interface BasicTypeGetter<String>attr - 字段名public BigInteger getBigInteger(String attr)
BasicTypeGettergetBigInteger in interface BasicTypeGetter<String>attr - 字段名public <E extends Enum<E>> E getEnum(Class<E> clazz, String key)
BasicTypeGettergetEnum in interface BasicTypeGetter<String>E - 枚举类型clazz - Enum的Classkey - KEYpublic byte[] getBytes(String attr)
attr - 字段名public Date getDate(String attr)
BasicTypeGettergetDate in interface BasicTypeGetter<String>attr - 字段名public <T> T getByPath(String expression)
表达式栗子：
persion persion.name persons[3] person.friends[5].name
T - 目标类型expression - 表达式BeanPath.get(Object)public <T> T getByPath(String expression, Class<T> resultType)
表达式栗子：
persion persion.name persons[3] person.friends[5].name
获取表达式对应值后转换为对应类型的值
T - 返回值类型expression - 表达式resultType - 返回值类型BeanPath.get(Object)public boolean containsKey(Object key)
containsKey in interface Map<String,Object>containsKey in class HashMap<String,Object>public Object getOrDefault(Object key, Object defaultValue)
getOrDefault in interface Map<String,Object>getOrDefault in class LinkedHashMap<String,Object>public Object computeIfPresent(String key, BiFunction<? super String,? super Object,?> remappingFunction)
computeIfPresent in interface Map<String,Object>computeIfPresent in class HashMap<String,Object>public Object compute(String key, BiFunction<? super String,? super Object,?> remappingFunction)
public Object merge(String key, Object value, BiFunction<? super Object,? super Object,?> remappingFunction)
public Object putIfAbsent(String key, Object value)
putIfAbsent in interface Map<String,Object>putIfAbsent in class HashMap<String,Object>public Object computeIfAbsent(String key, Function<? super String,?> mappingFunction)
computeIfAbsent in interface Map<String,Object>computeIfAbsent in class HashMap<String,Object>public Dict setFields(Func0<?>... fields)
User user = GenericBuilder.of(User::new).with(User::setUsername, "hutool").build();
Dict.create().setFields(user::getNickname, user::getUsername);
fields - lambda,不能为空Copyright © 2024. All rights reserved.