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驼峰命名法工具优化，使用下划线开头的时候忽略它

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This commit is contained in:
thinkgem
2025-09-18 21:47:28 +08:00
parent 23ea3e5020
commit cb4640cbb7
2 changed files with 40 additions and 10 deletions
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18
common/src/main/java/com/jeesite/common/lang/StringUtils.java
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@@ -270,7 +270,7 @@ public class StringUtils extends org.apache.commons.lang3.StringUtils {
} }
/** /**
* 驼峰命名法工具 * 转换为驼峰命名法
* @return * @return
* camelCase("hello_world") == "helloWorld" * camelCase("hello_world") == "helloWorld"
* capCamelCase("hello_world") == "HelloWorld" * capCamelCase("hello_world") == "HelloWorld"
@@ -283,37 +283,35 @@ public class StringUtils extends org.apache.commons.lang3.StringUtils {
s = s.toLowerCase(); s = s.toLowerCase();
StringBuilder sb = new StringBuilder(s.length()); StringBuilder sb = new StringBuilder(s.length());
boolean upperCase = false; boolean upperCase = false;
for (int i = 0; i < s.length(); i++) { for (int i = 0, j = 0; i < s.length(); i++) {
char c = s.charAt(i); char c = s.charAt(i);
if (c == UNDERLINE.charAt(0) || c == MINUS.charAt(0)) { if (c == UNDERLINE.charAt(0) || c == MINUS.charAt(0)) {
upperCase = i != 1; // 不允许第二个字符是大写 upperCase = j > 1; // 不允许第二个字符是大写
} else if (upperCase) { } else if (upperCase) {
sb.append(Character.toUpperCase(c)); sb.append(Character.toUpperCase(c));
upperCase = false; upperCase = false;
j++;
} else { } else {
sb.append(c); sb.append(c);
j++;
} }
} }
return sb.toString(); return sb.toString();
} }
/** /**
* 驼峰命名法工具 * 转换为驼峰命名法（首字母大写）
* @return * @return
* camelCase("hello_world") == "helloWorld" * camelCase("hello_world") == "helloWorld"
* capCamelCase("hello_world") == "HelloWorld" * capCamelCase("hello_world") == "HelloWorld"
* uncamelCase("helloWorld") = "hello_world" * uncamelCase("helloWorld") = "hello_world"
*/ */
public static String capCamelCase(String s) { public static String capCamelCase(String s) {
if (s == null) { return cap(camelCase(s));
return null;
}
s = camelCase(s);
return s.substring(0, 1).toUpperCase() + s.substring(1);
} }
/** /**
* 驼峰命名法工具 * 取消驼峰命名发
* @return * @return
* camelCase("hello_world") == "helloWorld" * camelCase("hello_world") == "helloWorld"
* capCamelCase("hello_world") == "HelloWorld" * capCamelCase("hello_world") == "HelloWorld"

32
common/src/test/java/com/jeesite/test/lang/StringUtilsTest.java Normal file
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@@ -0,0 +1,32 @@
/**
* Copyright (c) 2013-Now http://jeesite.com All rights reserved.
* No deletion without permission, or be held responsible to law.
*/
package com.jeesite.test.lang;
import com.jeesite.common.lang.StringUtils;
import java.text.ParseException;
/**
* 字符串工具测试类
* @author ThinkGem
* @version 2025-09-18
*/
public class StringUtilsTest {
public static void main(String[] args) throws ParseException {
System.out.println(StringUtils.camelCase("id_name") + " = idName");
System.out.println(StringUtils.camelCase("_id_name") + " = idName");
System.out.println(StringUtils.camelCase("__id_name") + " = idName");
System.out.println(StringUtils.camelCase("a_id") + " = aid");
System.out.println(StringUtils.camelCase("a_b_id") + " = abId");
System.out.println(StringUtils.camelCase("__a_id") + " = aid");
System.out.println(StringUtils.camelCase("__a_b_id") + " = abId");
System.out.println(StringUtils.capCamelCase("id_name") + " = IdName");
System.out.println(StringUtils.capCamelCase("a_b_id_name") + " = AbIdName");
System.out.println(StringUtils.uncamelCase("abIdName") + " = ab_id_name");
System.out.println(StringUtils.uncamelCase("AbIdName") + " = ab_id_name");
}
}