cn.sucang.core.util

Class MapUtils

java.lang.Object

cn.sucang.core.util.MapUtils

public final class MapUtils
extends java.lang.Object

对Map类的一些基本操作的扩展

Author:

Dragon

Constructor Summary

Constructors

Constructor and Description
MapUtils()

Method Summary

Modifier and Type	Method and Description
static <T> T[]	getKeys(java.util.Map<T,?> m0, java.lang.Class clazz) 以数组形式返回Map中的Keys
static long[]	getKeysLong(java.util.Map m0) 以数组形式返回Map中的Keys
static java.lang.String	getKeysString(java.util.Map m0)
static java.util.Map	getRuleTypes()
static <T> T[]	getValues(java.util.Map<?,T> m0, java.lang.Class clazz) 以数组形式返回Map中的Keys
static java.lang.String	getValues(java.util.Map m0, java.lang.String separate) $value $separate $value...
static java.lang.Integer[]	int2Int(int[] a0)
static int[]	Int2int(java.lang.Integer[] a0)
static boolean	isCollectionEmpty(java.lang.Object o)
static <K,V> java.util.Map<K,V>	List2Map(java.util.List<V> list1, java.lang.String idName, java.lang.Class<K> keyClass) 将List转换为Map索引对象
static java.lang.Long[]	long2Long(long[] a0)
static long[]	Long2long(java.lang.Long[] a0)
static void	main(java.lang.String[] args)
static java.lang.String	map2QueryString(java.util.Map m) 将Map键值映射为URL的GET传值方式：&name1=value1&name2=value2...
static java.lang.String	map2QueryString(java.util.Map m, boolean hasSeparator) 将Map键值映射为URL的GET传值方式：&name1=value1&name2=value2...
static BeanMap<java.lang.String,java.lang.Object>	parseJsonWhere(java.lang.String jsonWhere) 根据ＪＳＯｎ字符串获取查询条件Ｍａｐ
static int[]	parseVersion(java.lang.String version) 将格式为1.0.3的版本号分解为一个整型数组
static void	printMap(java.util.Map m0)
static void	printMap(java.util.Map m0, java.io.PrintWriter out) 枚举并输出Map中的值,一般用于调试
static void	printMap(java.util.Map m0, java.lang.String title)
static java.util.Map<java.lang.String,java.lang.String>	queryString2Map(java.lang.String qString)
static java.util.Map<java.lang.String,java.lang.String>	queryString2Map(java.lang.String qString, boolean filterSqlChar)
static int	sum(int[] ar)
static long	sum(long[] ar)
static <T> java.util.Map<java.lang.String,T>	toMapStringKey(java.util.Map<java.lang.Integer,T> maps)

Methods inherited from class java.lang.Object

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

Constructor Detail

MapUtils

public MapUtils()

Method Detail

printMap

public static void printMap(java.util.Map m0,
                            java.io.PrintWriter out)

枚举并输出Map中的值,一般用于调试

Parameters:

Map - map1

isCollectionEmpty

public static boolean isCollectionEmpty(java.lang.Object o)

sum

public static int sum(int[] ar)

sum

public static long sum(long[] ar)

printMap

public static void printMap(java.util.Map m0)

printMap

public static void printMap(java.util.Map m0,
                            java.lang.String title)

getKeys

public static <T> T[] getKeys(java.util.Map<T,?> m0,
                              java.lang.Class clazz)

以数组形式返回Map中的Keys

Parameters:

Map - m0

Returns:

Object[]

getValues

public static <T> T[] getValues(java.util.Map<?,T> m0,
                                java.lang.Class clazz)

以数组形式返回Map中的Keys

Parameters:

Map - m0

Returns:

Object[]

main

public static void main(java.lang.String[] args)

getKeysLong

public static long[] getKeysLong(java.util.Map m0)

以数组形式返回Map中的Keys

Parameters:

m0 - as Map

Returns:

long[]

toMapStringKey

public static <T> java.util.Map<java.lang.String,T> toMapStringKey(java.util.Map<java.lang.Integer,T> maps)

getKeysString

public static java.lang.String getKeysString(java.util.Map m0)

long2Long

public static java.lang.Long[] long2Long(long[] a0)

Int2int

public static int[] Int2int(java.lang.Integer[] a0)

int2Int

public static java.lang.Integer[] int2Int(int[] a0)

Long2long

public static long[] Long2long(java.lang.Long[] a0)

getValues

public static java.lang.String getValues(java.util.Map m0,
                                         java.lang.String separate)

$value $separate $value...

Parameters:

m0 - as Map

separate - as String

Returns:

String

queryString2Map

public static java.util.Map<java.lang.String,java.lang.String> queryString2Map(java.lang.String qString)

queryString2Map

public static java.util.Map<java.lang.String,java.lang.String> queryString2Map(java.lang.String qString,
                                                                               boolean filterSqlChar)

map2QueryString

public static java.lang.String map2QueryString(java.util.Map m)

将Map键值映射为URL的GET传值方式：&name1=value1&name2=value2...

Parameters:

m - as Map

Returns:

String 返回值带&前缀

map2QueryString

public static java.lang.String map2QueryString(java.util.Map m,
                                               boolean hasSeparator)

将Map键值映射为URL的GET传值方式：&name1=value1&name2=value2...

Parameters:

m - as Map

hasSeparator - as boolean

Returns:

String 返回值带&前缀

parseJsonWhere

public static BeanMap<java.lang.String,java.lang.Object> parseJsonWhere(java.lang.String jsonWhere)

根据ＪＳＯｎ字符串获取查询条件Ｍａｐ

Parameters:

jsonWhere - as String

Returns:

BeanMap<String,Object>

getRuleTypes

public static java.util.Map getRuleTypes()

List2Map

public static <K,V> java.util.Map<K,V> List2Map(java.util.List<V> list1,
                                                java.lang.String idName,
                                                java.lang.Class<K> keyClass)

将List转换为Map索引对象

Parameters:

list1 - as List<V>

idName - as String 指的是Ｖ中的字段名称，用于标识每一个Ｖ的唯一性用,需要V对象提供get$IdName()方法
如果Ｖ是List，则ｉｄＮａｍｅ指的是Ｖ的行索引号

Returns:

Map<K,V>

parseVersion

public static int[] parseVersion(java.lang.String version)

将格式为1.0.3的版本号分解为一个整型数组

Parameters:

version -

Returns: