com.blade.jdbc.utils.NameUtils Maven / Gradle / Ivy
package com.blade.jdbc.utils;
/**
* 名称操作辅助类
*/
public class NameUtils {
/**
* 首字母大写
*
* @param name
* @return
*/
public static String getFirstUpperName(String name) {
if (StringUtils.isBlank(name)) {
return null;
}
String firstChar = name.substring(0, 1).toUpperCase();
return firstChar + name.substring(1);
}
/**
* 首字母小写
*
* @param name
* @return
*/
public static String getFirstLowerName(String name) {
if (StringUtils.isBlank(name)) {
return null;
}
String firstChar = name.substring(0, 1).toLowerCase();
return firstChar + name.substring(1);
}
/**
* 转换成骆驼命名法返回
*
* @param name
* @return
*/
public static String getCamelName(String name) {
if (StringUtils.isBlank(name)) {
return null;
}
name = name.toLowerCase();
//去掉前面的_
while (name.startsWith("_")) {
name = name.substring(1);
}
//去掉后面的_
while (name.endsWith("_")) {
name = name.substring(0, name.length() - 1);
}
StringBuilder sb = new StringBuilder();
for (int i = 0; i < name.length(); i++) {
char c = name.charAt(i);
if (c == '_') {
i++;
sb.append(Character.toUpperCase(name.charAt(i)));
continue;
}
sb.append(c);
}
return sb.toString();
}
/**
* 将骆驼命名法反转成下划线返回
*
* @param name
* @return
*/
public static String getUnderlineName(String name) {
if (StringUtils.isBlank(name)) {
return null;
}
StringBuilder sb = new StringBuilder();
for (int i = 0; i < name.length(); i++) {
char c = name.charAt(i);
if (i > 0 && Character.isUpperCase(c)) {
sb.append("_");
}
sb.append(c);
}
return sb.toString().toLowerCase();
}
/**
* 保留原文件后缀生成唯一文件名
*
* @param fileName
* @return
*/
public static String createUniqueFileName(String fileName) {
int index = fileName.lastIndexOf(".");
String suffix = fileName.substring(index);
String uqName = UUIDUtils.getUUID16() + suffix;
return uqName;
}
/**
* 在文件名后加上指定后缀，不包括后缀名
*
* @param fileName
* @param endSuffix
* @return
*/
public static String createEndSuffixFileName(String fileName, String endSuffix) {
int index = fileName.lastIndexOf(".");
String preFileName = fileName.substring(0, index);
String suffix = fileName.substring(index);
return preFileName + endSuffix + suffix;
}
}