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[update] 判断空优化

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Signed-off-by: 夜雪剑辰 <1107047387@qq.com>
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夜雪剑辰 2024-02-22 11:39:23 +00:00 committed by Gitee
parent 007d8d2f16
commit 127c6902bf
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1 changed files with 16 additions and 28 deletions
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src/main/java/com/yexuejc/base/util/StrUtil.java
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@ -1,8 +1,7 @@
package com.yexuejc.base.util;
import java.io.UnsupportedEncodingException;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.lang.reflect.Array;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.ArrayList;
@ -11,9 +10,9 @@ import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.Random;
import java.util.UUID;
import java.util.concurrent.ExecutionException;
import java.util.function.Consumer;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
@ -33,36 +32,25 @@ public final class StrUtil {
private static char[] HEX_CHAR = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};
/**
* 判断字符串，数组，集合 是否为空
* 判断字符串，数组，集合 是否为空(null，""，[],{})
*
* @param obj
* @param obj 対象
* @return true:空;false:非空
* @return
*/
public static boolean isEmpty(Object obj) {
if (obj instanceof String) {
if (obj == null || "".equals((String) obj)) {
return true;
} else {
return false;
}
} else if (obj instanceof Object[]) {
if (obj == null || ((Object[]) obj).length == 0) {
return true;
} else {
return false;
}
} else if (obj instanceof Collection<?>) {
if (obj == null || ((Collection<?>) obj).size() == 0) {
return true;
} else {
return false;
}
if (obj == null) {
return true;
} else if (obj instanceof Optional) {
return ((Optional<?>) obj).isEmpty();
} else if (obj instanceof CharSequence) {
return ((CharSequence) obj).length() == 0;
} else if (obj.getClass().isArray()) {
return Array.getLength(obj) == 0;
} else if (obj instanceof Collection) {
return ((Collection<?>) obj).isEmpty();
} else {
if (obj == null) {
return true;
} else {
return false;
}
return obj instanceof Map && ((Map<?, ?>) obj).isEmpty();
}
}