首先,我们需要定义一个注解来标识需要进行驼峰转下划线的类。可以使用如下代码定义一个名为CamelCaseToUnderscore的注解: importjava.lang.annotation.ElementType;importjava.lang.annotation.Retention;importjava.lang.annotation.RetentionPolicy;importjava.lang.annotation.Target;@Retention(RetentionPolicy.RUNTIME)@Target(Ele...
一、什么是驼峰和下划线命名法 驼峰命名法(Camel Case)是一种变量命名规范,主要特点是多个单词组合时将每个单词的首字母大写。例如: userName studentId 下划线命名法(Underscore)则是在单词之间用下划线分隔,通常所有字母为小写。例如: user_name student_id 这两种命名法之间的转换是很多Java开发项目中的常见需求。 ...
public class Main { public static void main(String args[]) { String regex = "([a-z])([A-Z]+)"; String replacement = "$1_$2"; System.out.println("CamelCaseToSomethingElse" .replaceAll(regex, replacement) .toLowerCase()); } } 原文由 clevertension 发布,翻译遵循 CC BY-SA 3.0 ...
CaseFormat.LOWER_UNDERSCORE.to(CaseFormat.LOWER_CAMEL, "camel_case"); // returns camelCase CaseFormat.UPPER_UNDERSCORE.to(CaseFormat.UPPER_CAMEL, "CAMEL_CASE"); // returns CamelCase CaseFormat.LOWER_CAMEL.to(CaseFormat.UPPER_UNDERSCORE, "camelCase"); // returns CAMEL_CASE CaseFormat.UPPER_CAMEL....
String chineseName=annotation.value();//将驼峰命名转换为下划线命名String underscoredName =camelToUnderscore(propertyName); propertyMap.put(underscoredName, chineseName); } }returnpropertyMap; }/*** 获取属性元数据列表,每个元素包含属性名(使用下划线命名法)和对应中文名。
name:CaseFormat.LOWER_CAMEL.to(CaseFormat.LOWER_UNDERSCORE,name);}/** * @param name * @return 将变量名转为驼峰命名法格式的字符串 */publicstaticStringtoCamelcase(String name){returnnull==name?name:CaseFormat.LOWER_UNDERSCORE.to(CaseFormat.LOWER_CAMEL,name);}/** * 判断 变量是否为驼峰命名法...
2.1 驼峰转下划线 publicstaticvoidmain(String[]args) {StringresultStr=CaseFormat.LOWER_CAMEL.to(CaseFormat.LOWER_UNDERSCORE,"userName");System.out.println("转换后结果是:"+resultStr);} 输出结果 转换后结果是:user_name 2.2 下划线转驼峰 publicstaticvoidmain(String[]args) {StringresultStr=CaseFormat.LOW...
* toUnderScoreCase("helloWorld") = "hello_world" */ public static String toCamelCase(String s) { if (s == null) { return null; } s = s.toLowerCase(); StringBuilder sb = new StringBuilder(s.length()); boolean upperCase = false; for (int i = 0; i < s.length(); i++) {...
public static String toCamelCase(String s, char split) { return toCamelCase(s, Locale.getDefault(), split); } public static String toUnderScoreCase(String s, char split) { if (isBlank(s)) { return ""; } StringBuilder sb = new StringBuilder(); ...
(snake_case_example). in this tutorial, we’ll explore how to implement such a conversion in java. 2. understanding the conversion when converting a camel case string into a snake case one, we need to: identify boundaries between words insert an underscore (` _ `) at each boundary make ...