package com.nova.sankuai.domain.api.yinsheng;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.List;
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import java.util.Map;
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/**
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* 工具类
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* @author chang
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*
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*/
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public class StringUtil {
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/**
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* 判断字符数组是否为空
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*/
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public static boolean areNotEmpty(String... values) {
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boolean result = true;
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if (values == null || values.length == 0) {
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result = false;
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} else {
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for (String value : values) {
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result &= !isEmpty(value);
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}
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}
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return result;
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}
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/**
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* 把数组所有元素排序，并按照“参数=参数值”的模式用“&”字符拼接成字符串
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*
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* @param params
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* 需要排序并参与字符拼接的参数组
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* @return 拼接后字符串
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*/
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public static String createLinkString(Map<String, String> params) {
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List<String> keys = new ArrayList<>(params.keySet());
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Collections.sort(keys);
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String prestr = "";
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for (int i = 0; i < keys.size(); i++) {
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String key = keys.get(i);
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String value = params.get(key);
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if (i == keys.size() - 1) {
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prestr = prestr + key + "=" + value;
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} else {
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prestr = prestr + key + "=" + value + "&";
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}
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}
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return prestr;
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}
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/**
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* 判断字符串是否为空
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* <ul>
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* <li>isEmpty(null) = true</li>
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* <li>isEmpty("") = true</li>
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* <li>isEmpty(" ") = true</li>
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* <li>isEmpty("abc") = false</li>
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* </ul>
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*
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* @param value
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* 目标字符串
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* @return true/false
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*/
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public static boolean isEmpty(String value) {
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int strLen;
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if (value == null || (strLen = value.length()) == 0) {
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return true;
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}
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for (int i = 0; i < strLen; i++) {
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if ((Character.isWhitespace(value.charAt(i)) == false)) {
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return false;
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}
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}
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return true;
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}
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/**
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* <p>Checks if a CharSequence is whitespace, empty ("") or null.</p>
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*
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* <pre>
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* StringUtils.isBlank(null) = true
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* StringUtils.isBlank("") = true
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* StringUtils.isBlank(" ") = true
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* StringUtils.isBlank("bob") = false
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* StringUtils.isBlank(" bob ") = false
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* </pre>
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*
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* @param cs the CharSequence to check, may be null
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* @return {@code true} if the CharSequence is null, empty or whitespace
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* @since 2.0
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* @since 3.0 Changed signature from isBlank(String) to isBlank(CharSequence)
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*/
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public static boolean isBlank(CharSequence cs) {
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int strLen;
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if (cs == null || (strLen = cs.length()) == 0) {
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return true;
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}
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for (int i = 0; i < strLen; i++) {
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if (Character.isWhitespace(cs.charAt(i)) == false) {
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return false;
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}
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}
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return true;
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}
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public static boolean hasBlank(String key,String value){
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return isBlank(value);
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}
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}
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