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add sortJoin

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This commit is contained in:
Looly
2019-10-29 14:45:25 +08:00
parent da39e9e646
commit 3511952a35
5 changed files with 124 additions and 67 deletions
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63
hutool-core/src/main/java/cn/hutool/core/map/MapUtil.java
View File

@@ -492,11 +492,28 @@ public class MapUtil {
* @param map Map
* @param separator entry之间的连接符
* @param keyValueSeparator kv之间的连接符
* @param otherParams 其它附加参数字符串（例如密钥）
* @return 连接字符串
* @since 3.1.1
*/
public static <K, V> String join(Map<K, V> map, String separator, String keyValueSeparator) {
return join(map, separator, keyValueSeparator, false);
public static <K, V> String join(Map<K, V> map, String separator, String keyValueSeparator, String... otherParams) {
return join(map, separator, keyValueSeparator, false, otherParams);
}
/**
* 根据参数排序后拼接为字符串，常用于签名
*
* @param params 参数
* @param separator entry之间的连接符
* @param keyValueSeparator kv之间的连接符
* @param isIgnoreNull 是否忽略null的键和值
* @param otherParams 其它附加参数字符串（例如密钥）
* @return 签名字符串
* @since 5.0.4
*/
public static String sortJoin(Map<?, ?> params, String separator, String keyValueSeparator, boolean isIgnoreNull,
String... otherParams) {
return join(sort(params), separator, keyValueSeparator, isIgnoreNull, otherParams);
}
/**
@@ -507,11 +524,12 @@ public class MapUtil {
* @param map Map
* @param separator entry之间的连接符
* @param keyValueSeparator kv之间的连接符
* @param otherParams 其它附加参数字符串（例如密钥）
* @return 连接后的字符串
* @since 3.1.1
*/
public static <K, V> String joinIgnoreNull(Map<K, V> map, String separator, String keyValueSeparator) {
return join(map, separator, keyValueSeparator, true);
public static <K, V> String joinIgnoreNull(Map<K, V> map, String separator, String keyValueSeparator, String... otherParams) {
return join(map, separator, keyValueSeparator, true, otherParams);
}
/**
@@ -519,24 +537,33 @@ public class MapUtil {
*
* @param <K> 键类型
* @param <V> 值类型
* @param map Map
* @param map Map，为空返回otherParams拼接
* @param separator entry之间的连接符
* @param keyValueSeparator kv之间的连接符
* @param isIgnoreNull 是否忽略null的键和值
* @return 连接后的字符串
* @param otherParams 其它附加参数字符串（例如密钥）
* @return 连接后的字符串，map和otherParams为空返回""
* @since 3.1.1
*/
public static <K, V> String join(Map<K, V> map, String separator, String keyValueSeparator, boolean isIgnoreNull) {
public static <K, V> String join(Map<K, V> map, String separator, String keyValueSeparator, boolean isIgnoreNull, String... otherParams) {
final StringBuilder strBuilder = StrUtil.builder();
boolean isFirst = true;
for (Entry<K, V> entry : map.entrySet()) {
if (false == isIgnoreNull || entry.getKey() != null && entry.getValue() != null) {
if (isFirst) {
isFirst = false;
} else {
strBuilder.append(separator);
if(isNotEmpty(map)){
for (Entry<K, V> entry : map.entrySet()) {
if (false == isIgnoreNull || entry.getKey() != null && entry.getValue() != null) {
if (isFirst) {
isFirst = false;
} else {
strBuilder.append(separator);
}
strBuilder.append(Convert.toStr(entry.getKey())).append(keyValueSeparator).append(Convert.toStr(entry.getValue()));
}
strBuilder.append(Convert.toStr(entry.getKey())).append(keyValueSeparator).append(Convert.toStr(entry.getValue()));
}
}
// 补充其它字符串到末尾，默认无分隔符
if (ArrayUtil.isNotEmpty(otherParams)) {
for (String otherParam : otherParams) {
strBuilder.append(otherParam);
}
}
return strBuilder.toString();
@@ -687,13 +714,17 @@ public class MapUtil {
*
* @param <K> key的类型
* @param <V> value的类型
* @param map Map
* @param map Map，为null返回null
* @param comparator Key比较器
* @return TreeMap
* @return TreeMap，map为null返回null
* @see #newTreeMap(Map, Comparator)
* @since 4.0.1
*/
public static <K, V> TreeMap<K, V> sort(Map<K, V> map, Comparator<? super K> comparator) {
if(null == map){
return null;
}
TreeMap<K, V> result;
if (map instanceof TreeMap) {
// 已经是可排序Map，此时只有比较器一致才返回原map

53
hutool-core/src/test/java/cn/hutool/core/map/MapUtilTest.java
View File

@@ -1,14 +1,15 @@
package cn.hutool.core.map;
import java.util.Map;
import java.util.Map.Entry;
import org.junit.Assert;
import org.junit.Test;
import cn.hutool.core.convert.Convert;
import cn.hutool.core.lang.Editor;
import cn.hutool.core.lang.Filter;
import cn.hutool.core.util.StrUtil;
import org.junit.Assert;
import org.junit.Test;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
public class MapUtilTest {
@@ -20,16 +21,7 @@ public class MapUtilTest {
map.put("c", "3");
map.put("d", "4");
Map<String, String> map2 = MapUtil.filter(map, new Filter<Entry<String, String>>() {
@Override
public boolean accept(Entry<String, String> t) {
if (Convert.toInt(t.getValue()) % 2 == 0) {
return true;
}
return false;
}
});
Map<String, String> map2 = MapUtil.filter(map, (Filter<Entry<String, String>>) t -> Convert.toInt(t.getValue()) % 2 == 0);
Assert.assertEquals(2, map2.size());
@@ -45,14 +37,10 @@ public class MapUtilTest {
map.put("c", "3");
map.put("d", "4");
Map<String, String> map2 = MapUtil.filter(map, new Editor<Entry<String, String>>() {
@Override
public Entry<String, String> edit(Entry<String, String> t) {
// 修改每个值使之*10
t.setValue(t.getValue() + "0");
return t;
}
Map<String, String> map2 = MapUtil.filter(map, (Editor<Entry<String, String>>) t -> {
// 修改每个值使之*10
t.setValue(t.getValue() + "0");
return t;
});
Assert.assertEquals(4, map2.size());
@@ -97,4 +85,21 @@ public class MapUtilTest {
Assert.assertEquals("d", objectArray[3][0]);
Assert.assertEquals("4", objectArray[3][1]);
}
@Test
public void sortJoinTest(){
Map<String, String> build = MapUtil.builder(new HashMap<String, String>())
.put("key1", "value1")
.put("key3", "value3")
.put("key2", "value2").build();
String join1 = MapUtil.sortJoin(build, StrUtil.EMPTY, StrUtil.EMPTY, false);
Assert.assertEquals("key1value1key2value2key3value3", join1);
String join2 = MapUtil.sortJoin(build, StrUtil.EMPTY, StrUtil.EMPTY, false, "123");
Assert.assertEquals("key1value1key2value2key3value3123", join2);
String join3 = MapUtil.sortJoin(build, StrUtil.EMPTY, StrUtil.EMPTY, false, "123", "abc");
Assert.assertEquals("key1value1key2value2key3value3123abc", join3);
}
}