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工具类优化

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egan
2021-08-01 23:34:15 +08:00
parent 4bc739d884
commit bb91d24d74
8 changed files with 350 additions and 364 deletions
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26
pay-java-common/src/main/java/com/egzosn/pay/common/util/DateUtils.java
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@@ -8,9 +8,9 @@ import java.util.HashMap;
import java.util.Map;
import java.util.TimeZone;
import org.apache.http.util.Args;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.http.util.Args;
/**
* 日期转换运算工具
@@ -90,15 +90,15 @@ public final class DateUtils {
return parseDate(date, YYYY_MM_DD_HH_MM_SS);
}
public static final String format(Date date) {
public static String format(Date date) {
return formatDate(date, YYYY_MM_DD_HH_MM_SS);
}
public static final Date parseDay(String date) {
public static Date parseDay(String date) {
return parseDate(date, YYYY_MM_DD);
}
public static final String formatDay(Date date) {
public static String formatDay(Date date) {
return formatDate(date, YYYY_MM_DD);
}
@@ -108,8 +108,8 @@ public final class DateUtils {
* @param date 结束点日期
* @return 分钟数
*/
public static final long minutesRemaining(Date date) {
return (date.getTime() / 1000 / 60 - System.currentTimeMillis() / 1000 / 60);
public static long minutesRemaining(Date date) {
return (date.getTime() / 1000 / 60 - DateUtils.toEpochSecond() / 60);
}
/**
@@ -118,7 +118,7 @@ public final class DateUtils {
* @param date 结束点日期
* @return 小时数
*/
public static final long remainingHours(Date date) {
public static long remainingHours(Date date) {
return minutesRemaining(date) / 60;
}
@@ -128,8 +128,18 @@ public final class DateUtils {
* @param date 结束点日期
* @return 天数
*/
public static final long remainingDays(Date date) {
public static long remainingDays(Date date) {
return remainingHours(date) / 24;
}
/**
* 将此日期时间转换为从epoch开始的秒数
*
* @return epoch开始的秒数
*/
public static long toEpochSecond() {
return System.currentTimeMillis() / 1000;
}
}

36
pay-java-common/src/main/java/com/egzosn/pay/common/util/MapGen.java Normal file
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@@ -0,0 +1,36 @@
package com.egzosn.pay.common.util;
import java.util.Map;
/**
* Map生成工具
*
* @author Egan
* email egzosn@gmail.com
* date 2021/8/1
*/
public class MapGen<K, V> {
/**
* 属性
*/
private Map<K, V> attr;
public MapGen(K key, V value) {
keyValue(key, value);
}
public MapGen keyValue(K key, V value) {
attr.put(key, value);
return this;
}
public Map<K, V> getAttr() {
return attr;
}
private void setAttr(Map<K, V> attr) {
this.attr = attr;
}
}

11
pay-java-common/src/main/java/com/egzosn/pay/common/util/Util.java
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@@ -571,14 +571,19 @@ public class Util {
}
/**
* 一百
*/
public static final BigDecimal HUNDRED = new BigDecimal(100);
/**
* 元转分
*
* @param amount 元的金额
* @return 分的金额
*/
public static final int conversionCentAmount(BigDecimal amount) {
return amount.multiply(new BigDecimal(100)).setScale(0, BigDecimal.ROUND_HALF_UP).intValue();
public static int conversionCentAmount(BigDecimal amount) {
return amount.multiply(HUNDRED).setScale(0, BigDecimal.ROUND_HALF_UP).intValue();
}
/**
@@ -587,7 +592,7 @@ public class Util {
* @param amount 元的金额
* @return 元的金额 两位小数
*/
public static final BigDecimal conversionAmount(BigDecimal amount) {
public static BigDecimal conversionAmount(BigDecimal amount) {
return amount.setScale(2, BigDecimal.ROUND_HALF_UP);
}

172
pay-java-common/src/main/java/com/egzosn/pay/common/util/sign/SecureUtil.java
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@@ -1,172 +0,0 @@
package com.egzosn.pay.common.util.sign;
import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.security.PublicKey;
import java.security.Signature;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.egzosn.pay.common.bean.result.PayException;
import com.egzosn.pay.common.exception.PayErrorException;
import com.egzosn.pay.common.util.sign.encrypt.sm3.SM3Digest;
public class SecureUtil {
private static final Logger LOG = LoggerFactory.getLogger(SecureUtil.class);
/**
* 算法常量： SHA1
*/
private static final String ALGORITHM_SHA1 = "SHA-1";
/**
* 算法常量： SHA256
*/
private static final String ALGORITHM_SHA256 = "SHA-256";
/**
* 算法常量：SHA1withRSA
*/
private static final String BC_PROV_ALGORITHM_SHA1RSA = "SHA1withRSA";
/**
* 算法常量：SHA256withRSA
*/
private static final String BC_PROV_ALGORITHM_SHA256RSA = "SHA256withRSA";
/**
* 获取摘要
*
* @param data 待计算的数据
* @param algorithm 算法名
* @return 计算结果
*/
private static byte[] digestByData(byte[] data, String algorithm) {
MessageDigest md = null;
try {
md = MessageDigest.getInstance(algorithm);
md.reset();
md.update(data);
return md.digest();
}
catch (NoSuchAlgorithmException e) {
LOG.error("", e);
return null;
}
}
/**
* sha1计算后进行16进制转换
*
* @param data 待计算的数据
* @param encoding 编码
* @return 计算结果
*/
public static byte[] sha1X16(String data, String encoding) {
try {
byte[] bytes = digestByData(data.getBytes(encoding), ALGORITHM_SHA1);
StringBuilder sha1StrBuff = new StringBuilder();
for (int i = 0; i < bytes.length; i++) {
if (Integer.toHexString(0xFF & bytes[i]).length() == 1) {
sha1StrBuff.append("0").append(
Integer.toHexString(0xFF & bytes[i]));
}
else {
sha1StrBuff.append(Integer.toHexString(0xFF & bytes[i]));
}
}
return sha1StrBuff.toString().getBytes(encoding);
}
catch (UnsupportedEncodingException e) {
LOG.error("", e);
return null;
}
}
/**
* sha256计算后进行16进制转换
*
* @param data 待计算的数据
* @param encoding 编码
* @return 计算结果
*/
public static String sha256X16Str(String data, String encoding) {
byte[] bytes = null;
try {
bytes = digestByData(data.getBytes(encoding), ALGORITHM_SHA1);
}
catch (UnsupportedEncodingException e) {
throw new PayErrorException(new PayException("error", e.getLocalizedMessage()));
}
StringBuilder sha256StrBuff = new StringBuilder();
for (int i = 0; i < bytes.length; i++) {
if (Integer.toHexString(0xFF & bytes[i]).length() == 1) {
sha256StrBuff.append("0").append(
Integer.toHexString(0xFF & bytes[i]));
}
else {
sha256StrBuff.append(Integer.toHexString(0xFF & bytes[i]));
}
}
return sha256StrBuff.toString();
}
/**
* SM3计算.
*
* @param data 待计算的数据
* @return 计算结果
*/
private static byte[] sm3(byte[] data) {
SM3Digest sm3 = new SM3Digest();
sm3.update(data, 0, data.length);
byte[] result = new byte[sm3.getDigestSize()];
sm3.doFinal(result, 0);
return result;
}
/**
* sm3计算后进行16进制转换
*
* @param data 待计算的数据
* @param encoding 编码
* @return 计算结果
*/
public static String sm3X16Str(String data, String encoding) {
byte[] bytes = new byte[new SM3Digest().getDigestSize()];
try {
bytes = SecureUtil.sm3(data.getBytes(encoding));
}
catch (UnsupportedEncodingException e) {
LOG.error("", e);
}
StringBuilder sm3StrBuff = new StringBuilder();
for (int i = 0; i < bytes.length; i++) {
if (Integer.toHexString(0xFF & bytes[i]).length() == 1) {
sm3StrBuff.append("0").append(
Integer.toHexString(0xFF & bytes[i]));
}
else {
sm3StrBuff.append(Integer.toHexString(0xFF & bytes[i]));
}
}
return sm3StrBuff.toString();
}
public static boolean validateSignBySoft256(PublicKey publicKey, byte[] signData, byte[] srcData) throws Exception {
Signature st = Signature.getInstance(BC_PROV_ALGORITHM_SHA256RSA, "BC");
st.initVerify(publicKey);
st.update(srcData);
return st.verify(signData);
}
public static boolean validateSignBySoft(PublicKey publicKey,
byte[] signData, byte[] srcData) throws Exception {
Signature st = Signature.getInstance(BC_PROV_ALGORITHM_SHA1RSA, "BC");
st.initVerify(publicKey);
st.update(srcData);
return st.verify(signData);
}
}

182
pay-java-common/src/main/java/com/egzosn/pay/common/util/sign/SignTextUtils.java Normal file
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@@ -0,0 +1,182 @@
package com.egzosn.pay.common.util.sign;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.SortedMap;
import org.apache.http.message.BasicNameValuePair;
import com.egzosn.pay.common.util.str.StringUtils;
/**
* 签名文本构建工具
*
* @author Egan
* email egzosn@gmail.com
* date 2021/8/1
*/
public final class SignTextUtils {
private SignTextUtils() {
}
/**
* 把数组所有元素排序，并按照“参数=参数值”的模式用“@param separator”字符拼接成字符串
*
* @param parameters 参数
* @return 去掉空值与签名参数后的新签名，拼接后字符串
*/
public static String parameterText(Map parameters) {
return parameterText(parameters, "&");
}
/**
* 把数组所有元素排序，并按照“参数=参数值”的模式用“@param separator”字符拼接成字符串
*
* @param parameters 参数
* @param separator 分隔符
* @return 去掉空值与签名参数后的新签名，拼接后字符串
*/
public static String parameterText(Map parameters, String separator) {
return parameterText(parameters, separator, "signature", "sign", "key", "sign_type");
}
/**
* 把数组所有元素排序，并按照“参数=参数值”的模式用“@param separator”字符拼接成字符串
*
* @param parameters 参数
* @param separator 分隔符
* @param ignoreKey 需要忽略添加的key
* @return 去掉空值与签名参数后的新签名，拼接后字符串
*/
public static String parameterText(Map<String, Object> parameters, String separator, String... ignoreKey) {
return parameterText(parameters, separator, true, ignoreKey);
}
/**
* 把数组所有元素排序，并按照“参数=参数值”的模式用“@param separator”字符拼接成字符串
*
* @param parameters 参数
* @param separator 分隔符
* @param ignoreNullValue 需要忽略NULL值
* @param ignoreKey 需要忽略添加的key
* @return 去掉空值与签名参数后的新签名，拼接后字符串
*/
public static String parameterText(Map<String, Object> parameters, String separator, boolean ignoreNullValue, String... ignoreKey) {
if (parameters == null) {
return "";
}
if (null != ignoreKey) {
Arrays.sort(ignoreKey);
}
StringBuffer sb = new StringBuffer();
// TODO 2016/11/11 10:14 author: egan 已经排序好处理
if (parameters instanceof SortedMap) {
for (Map.Entry<String, Object> entry : parameters.entrySet()) {
Object v = entry.getValue();
if (null == v) {
continue;
}
String valStr = v.toString().trim();
if ("".equals(valStr) || (null != ignoreKey && Arrays.binarySearch(ignoreKey, entry.getKey()) >= 0)) {
continue;
}
sb.append(entry.getKey()).append("=").append(valStr).append(separator);
}
if (sb.length() > 0 && !"".equals(separator)) {
sb.deleteCharAt(sb.length() - 1);
}
return sb.toString();
}
return sortMapParameterText(parameters, separator, ignoreNullValue, ignoreKey);
}
private static String sortMapParameterText(Map<String, Object> parameters, String separator, boolean ignoreNullValue, String... ignoreKey) {
StringBuffer sb = new StringBuffer();
// TODO 2016/11/11 10:14 author: egan 未排序须处理
List<String> keys = new ArrayList<String>(parameters.keySet());
//排序
Collections.sort(keys);
for (String k : keys) {
String valueStr = "";
Object o = parameters.get(k);
if (ignoreNullValue && null == o) {
continue;
}
if (o instanceof String[]) {
String[] values = (String[]) o;
for (int i = 0; i < values.length; i++) {
String value = values[i].trim();
if ("".equals(value)) {
continue;
}
valueStr += (i == values.length - 1) ? value : value + ",";
}
}
else {
valueStr = o.toString();
}
if (StringUtils.isBlank(valueStr) || (null != ignoreKey && Arrays.binarySearch(ignoreKey, k) >= 0)) {
continue;
}
sb.append(k).append("=").append(valueStr).append(separator);
}
if (sb.length() > 0) {
sb.deleteCharAt(sb.length() - 1);
}
return sb.toString();
}
/**
* 将参数集合(事前做好排序)按分割符号拼凑字符串并加密为MD5
* example: mchnt_cd+"|" +order_id+"|"+order_amt+"|"+order_pay_type+"|"+page_notify_url+"|"+back_notify_url+"|"+order_valid_time+"|"+iss_ins_cd+"|"+goods_name+"|"+"+goods_display_url+"|"+rem+"|"+ver+"|"+mchnt_key
*
* @param parameters 参数集合
* @param separator 分隔符
* @return 参数排序好的值
*/
public static String parameters2Md5Str(Object parameters, String separator) {
StringBuffer sb = new StringBuffer();
if (parameters instanceof LinkedHashMap) {
Set<String> keys = (Set<String>) ((LinkedHashMap) parameters).keySet();
for (String key : keys) {
String val = ((LinkedHashMap) parameters).get(key).toString();
sb.append(val).append(separator);
}
}
else if (parameters instanceof List) {
for (BasicNameValuePair bnv : ((List<BasicNameValuePair>) parameters)) {
sb.append(bnv.getValue()).append(separator);
}
}
return StringUtils.isBlank(sb.toString()) ? "" : sb.deleteCharAt(sb.length() - 1).toString();
}
/**
* 获取随机字符串
*
* @return 随机字符串
*/
public static String randomStr() {
return StringUtils.randomStr();
}
}

178
pay-java-common/src/main/java/com/egzosn/pay/common/util/sign/SignUtils.java
View File

@@ -21,9 +21,12 @@ import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.apache.http.message.BasicNameValuePair;
import static com.egzosn.pay.common.util.sign.SignTextUtils.parameterText;
import com.egzosn.pay.common.bean.SignType;
import com.egzosn.pay.common.bean.result.PayException;
import com.egzosn.pay.common.exception.PayErrorException;
import com.egzosn.pay.common.util.sign.encrypt.HmacSha256;
import com.egzosn.pay.common.util.str.StringUtils;
/**
@@ -80,29 +83,7 @@ public enum SignUtils implements SignType {
*/
@Override
public String createSign(String content, String key, String characterEncoding) {
Mac sha256HMAC = null;
try {
sha256HMAC = Mac.getInstance("HmacSHA256");
SecretKeySpec secretKey = new SecretKeySpec(key.getBytes(characterEncoding), "HmacSHA256");
sha256HMAC.init(secretKey);
byte[] array = sha256HMAC.doFinal(content.getBytes(characterEncoding));
StringBuilder sb = new StringBuilder();
for (byte item : array) {
sb.append(Integer.toHexString((item & 0xFF) | 0x100).substring(1, 3));
}
return sb.toString().toUpperCase();
}
catch (NoSuchAlgorithmException e) {
LOG.error("", e);
}
catch (InvalidKeyException e) {
LOG.error("", e);
}
catch (UnsupportedEncodingException e) {
LOG.error("", e);
}
throw new PayErrorException(new PayException("fail", "HMACSHA256 签名异常"));
return HmacSha256.createSign(content, key, characterEncoding);
}
/**
@@ -177,159 +158,8 @@ public enum SignUtils implements SignType {
return com.egzosn.pay.common.util.sign.encrypt.RSA2.verify(text, sign, publicKey, characterEncoding);
}
};
private static final Logger LOG = LoggerFactory.getLogger(SignUtils.class);
/**
* 把数组所有元素排序，并按照“参数=参数值”的模式用“@param separator”字符拼接成字符串
*
* @param parameters 参数
* @return 去掉空值与签名参数后的新签名，拼接后字符串
*/
public static String parameterText(Map parameters) {
return parameterText(parameters, "&");
}
/**
* 把数组所有元素排序，并按照“参数=参数值”的模式用“@param separator”字符拼接成字符串
*
* @param parameters 参数
* @param separator 分隔符
* @return 去掉空值与签名参数后的新签名，拼接后字符串
*/
public static String parameterText(Map parameters, String separator) {
return parameterText(parameters, separator, "signature", "sign", "key", "sign_type");
}
/**
* 把数组所有元素排序，并按照“参数=参数值”的模式用“@param separator”字符拼接成字符串
*
* @param parameters 参数
* @param separator 分隔符
* @param ignoreKey 需要忽略添加的key
* @return 去掉空值与签名参数后的新签名，拼接后字符串
*/
public static String parameterText(Map<String, Object> parameters, String separator, String... ignoreKey) {
return parameterText(parameters, separator, true, ignoreKey);
}
/**
* 把数组所有元素排序，并按照“参数=参数值”的模式用“@param separator”字符拼接成字符串
*
* @param parameters 参数
* @param separator 分隔符
* @param ignoreNullValue 需要忽略NULL值
* @param ignoreKey 需要忽略添加的key
* @return 去掉空值与签名参数后的新签名，拼接后字符串
*/
public static String parameterText(Map<String, Object> parameters, String separator, boolean ignoreNullValue, String... ignoreKey) {
if (parameters == null) {
return "";
}
if (null != ignoreKey) {
Arrays.sort(ignoreKey);
}
StringBuffer sb = new StringBuffer();
// TODO 2016/11/11 10:14 author: egan 已经排序好处理
if (parameters instanceof SortedMap) {
for (Map.Entry<String, Object> entry : parameters.entrySet()) {
Object v = entry.getValue();
if (null == v) {
continue;
}
String valStr = v.toString().trim();
if ("".equals(valStr) || (null != ignoreKey && Arrays.binarySearch(ignoreKey, entry.getKey()) >= 0)) {
continue;
}
sb.append(entry.getKey()).append("=").append(valStr).append(separator);
}
if (sb.length() > 0 && !"".equals(separator)) {
sb.deleteCharAt(sb.length() - 1);
}
return sb.toString();
}
return sortMapParameterText(parameters, separator, ignoreNullValue, ignoreKey);
}
private static String sortMapParameterText(Map<String, Object> parameters, String separator, boolean ignoreNullValue, String... ignoreKey) {
StringBuffer sb = new StringBuffer();
// TODO 2016/11/11 10:14 author: egan 未排序须处理
List<String> keys = new ArrayList<String>(parameters.keySet());
//排序
Collections.sort(keys);
for (String k : keys) {
String valueStr = "";
Object o = parameters.get(k);
if (ignoreNullValue && null == o) {
continue;
}
if (o instanceof String[]) {
String[] values = (String[]) o;
for (int i = 0; i < values.length; i++) {
String value = values[i].trim();
if ("".equals(value)) {
continue;
}
valueStr += (i == values.length - 1) ? value : value + ",";
}
}
else {
valueStr = o.toString();
}
if (StringUtils.isBlank(valueStr) || (null != ignoreKey && Arrays.binarySearch(ignoreKey, k) >= 0)) {
continue;
}
sb.append(k).append("=").append(valueStr).append(separator);
}
if (sb.length() > 0) {
sb.deleteCharAt(sb.length() - 1);
}
return sb.toString();
}
/**
* 将参数集合(事前做好排序)按分割符号拼凑字符串并加密为MD5
* example: mchnt_cd+"|" +order_id+"|"+order_amt+"|"+order_pay_type+"|"+page_notify_url+"|"+back_notify_url+"|"+order_valid_time+"|"+iss_ins_cd+"|"+goods_name+"|"+"+goods_display_url+"|"+rem+"|"+ver+"|"+mchnt_key
*
* @param parameters 参数集合
* @param separator 分隔符
* @return 参数排序好的值
*/
public static String parameters2Md5Str(Object parameters, String separator) {
StringBuffer sb = new StringBuffer();
if (parameters instanceof LinkedHashMap) {
Set<String> keys = (Set<String>) ((LinkedHashMap) parameters).keySet();
for (String key : keys) {
String val = ((LinkedHashMap) parameters).get(key).toString();
sb.append(val).append(separator);
}
}
else if (parameters instanceof List) {
for (BasicNameValuePair bnv : ((List<BasicNameValuePair>) parameters)) {
sb.append(bnv.getValue()).append(separator);
}
}
return StringUtils.isBlank(sb.toString()) ? "" : sb.deleteCharAt(sb.length() - 1).toString();
}
/**
* 获取随机字符串
*
* @return 随机字符串
*/
public static String randomStr() {
return UUID.randomUUID().toString().replace("-", "");
}
@Override
public String getName() {

56
pay-java-common/src/main/java/com/egzosn/pay/common/util/sign/encrypt/HmacSha256.java Normal file
View File

@@ -0,0 +1,56 @@
package com.egzosn.pay.common.util.sign.encrypt;
import java.io.UnsupportedEncodingException;
import java.security.GeneralSecurityException;
import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.egzosn.pay.common.bean.result.PayException;
import com.egzosn.pay.common.exception.PayErrorException;
/**
*
* HmacSHA256
* @author Egan
* email egzosn@gmail.com
* date 2021/8/1
*/
public class HmacSha256 {
private static final Logger LOG = LoggerFactory.getLogger(HmacSha256.class);
/**
* 签名
*
* @param content 需要签名的内容
* @param key 密钥
* @param characterEncoding 字符编码
*
* @return 签名值
*/
public static String createSign(String content, String key, String characterEncoding) {
Mac sha256HMAC = null;
try {
sha256HMAC = Mac.getInstance("HmacSHA256");
SecretKeySpec secretKey = new SecretKeySpec(key.getBytes(characterEncoding), "HmacSHA256");
sha256HMAC.init(secretKey);
byte[] array = sha256HMAC.doFinal(content.getBytes(characterEncoding));
StringBuilder sb = new StringBuilder();
for (byte item : array) {
sb.append(Integer.toHexString((item & 0xFF) | 0x100).substring(1, 3));
}
return sb.toString().toUpperCase();
}
catch (UnsupportedEncodingException e) {
LOG.error("", e);
}
catch (GeneralSecurityException e) {
LOG.error("", e);
}
throw new PayErrorException(new PayException("fail", "HMACSHA256 签名异常"));
}
}

53
pay-java-common/src/main/java/com/egzosn/pay/common/util/str/StringUtils.java
View File

@@ -1,6 +1,7 @@
package com.egzosn.pay.common.util.str;
import java.io.UnsupportedEncodingException;
import java.util.UUID;
/**
* Created by ZaoSheng on 2016/6/4.
@@ -19,7 +20,6 @@ public class StringUtils {
*
* @param str1 要比较的字符串1
* @param str2 要比较的字符串2
*
* @return 如果两个字符串相同，或者都是<code>null</code>，则返回<code>true</code>
*/
public static boolean equals(String str1, String str2) {
@@ -31,6 +31,7 @@ public class StringUtils {
}
// Empty checks
//-----------------------------------------------------------------------
/**
* <p>Checks if a CharSequence is empty ("") or null.</p>
* <pre>
@@ -40,7 +41,8 @@ public class StringUtils {
* StringUtils.isEmpty("bob") = false
* StringUtils.isEmpty(" bob ") = false
* </pre>
* @param cs the CharSequence to check, may be null
*
* @param cs the CharSequence to check, may be null
* @return {@code true} if the CharSequence is empty or null
*/
public static boolean isEmpty(CharSequence cs) {
@@ -58,7 +60,7 @@ public class StringUtils {
* StringUtils.isNotEmpty(" bob ") = true
* </pre>
*
* @param cs the CharSequence to check, may be null
* @param cs the CharSequence to check, may be null
* @return {@code true} if the CharSequence is not empty and not null
*/
public static boolean isNotEmpty(CharSequence cs) {
@@ -75,7 +77,8 @@ public class StringUtils {
* StringUtils.isBlank("bob") = false
* StringUtils.isBlank(" bob ") = false
* </pre>
* @param cs the CharSequence to check, may be null
*
* @param cs the CharSequence to check, may be null
* @return {@code true} if the CharSequence is null, empty or whitespace
* @since 2.0
*/
@@ -102,9 +105,10 @@ public class StringUtils {
* StringUtils.isNotBlank("bob") = true
* StringUtils.isNotBlank(" bob ") = true
* </pre>
* @param cs the CharSequence to check, may be null
*
* @param cs the CharSequence to check, may be null
* @return {@code true} if the CharSequence is
* not empty and not null and not whitespace
* not empty and not null and not whitespace
*/
public static boolean isNotBlank(CharSequence cs) {
return !StringUtils.isBlank(cs);
@@ -121,13 +125,16 @@ public class StringUtils {
}
try {
return content.getBytes(charset);
} catch (UnsupportedEncodingException e) {
}
catch (UnsupportedEncodingException e) {
throw new RuntimeException("转码过程中出现错误,指定的编码集不对,您目前指定的编码集是:" + charset);
}
}
/**
* 对 subject body 进行 trim 运算，
* 以防止在签名是可能造成的签名错误问题
*
* @param str 字符
* @return 去除空格之后的字符
*/
@@ -135,4 +142,36 @@ public class StringUtils {
return str == null ? null : str.trim();
}
/**
* 字符串数组拼接为字符串
*
* @param separator 分隔符
* @param str 字符数组
* @return 字符串
*/
public static String joining(String separator, String... str) {
StringBuilder builder = new StringBuilder();
for (String s : str) {
if (StringUtils.isEmpty(s)) {
continue;
}
if (builder.length() > 0) {
builder.append(separator);
}
builder.append(s);
}
return builder.toString();
}
/**
* 获取随机字符串
*
* @return 随机字符串
*/
public static String randomStr() {
return UUID.randomUUID().toString().replace("-", "");
}
}