Merge pull request #151 from Nisus-Liu/bugfix/143-sqlcamel

fix: 大写下滑下列名转驼峰问题

Author: moshowgame

generator-web/pom.xml

@@ -36,10 +36,11 @@
 			<artifactId>spring-boot-starter-data-jpa</artifactId>
 		</dependency>-->
 
-        <!--<dependency>
+        <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-        </dependency>-->
+			<scope>test</scope>
+        </dependency>
 
 		<dependency>
 			<groupId>org.springframework.boot</groupId>

generator-web/src/main/java/com/softdev/system/generator/util/StringUtils.java

@@ -14,6 +14,9 @@ public class StringUtils {
      * @return
      */
     public static String upperCaseFirst(String str) {
+        if (str == null || str.trim().isEmpty()) {
+            return str;
+        }
         return str.substring(0, 1).toUpperCase() + str.substring(1);
     }
 
@@ -89,12 +92,41 @@ public static String toUnderline(String str, boolean upperCase) {
         return result.toString();
     }
 
+    /**
+     * any str ==> lowerCamel
+     */
+    public static String toLowerCamel(String str) {
+        if (str == null || str.trim().isEmpty()) {
+            return str;
+        }
 
-    public static boolean isNotNull(String str){
-        return org.apache.commons.lang3.StringUtils.isNotEmpty(str);
+        StringBuilder result = new StringBuilder();
+        char pre = '\0';
+        for (int i = 0; i < str.length(); i++) {
+            char ch = str.charAt(i);
+            if (ch == '-' || ch == '—' || ch == '_') {
+                ch = '_';
+                pre = ch;
+                continue;
+            }
+            char ch2 = ch;
+            if (pre == '_') {
+                ch2 = Character.toUpperCase(ch);
+                pre = ch2;
+            } else if (pre >= 'A' && pre <= 'Z') {
+                pre = ch;
+                ch2 = Character.toLowerCase(ch);
+            } else {
+                pre = ch;
+            }
+            result.append(ch2);
+        }
+
+        return lowerCaseFirst(result.toString());
     }
-    public static void main(String[] args) {
 
+    public static boolean isNotNull(String str) {
+        return org.apache.commons.lang3.StringUtils.isNotEmpty(str);
     }
 
 }

generator-web/src/main/java/com/softdev/system/generator/util/TableParseUtil.java

@@ -164,7 +164,7 @@ public static ClassInfo processTableIntoClassInfo(ParamInfo paramInfo)
                 // 2019-2-22 zhengkai 要在条件中使用复杂的表达式
                 // 2019-4-29 zhengkai 优化对普通和特殊storage关键字的判断（感谢@AhHeadFloating的反馈 ）
                 // 2020-10-20 zhengkai 优化对fulltext/index关键字的处理（感谢@WEGFan的反馈）
-                // 2023-8-27 zhangfei 改用工具方法判断, 且修改变量名(非特殊标识), 方法抽取
+                // 2023-8-27 L&J 改用工具方法判断, 且修改变量名(非特殊标识), 方法抽取
                 boolean notSpecialFlag = isNotSpecialColumnLine(columnLine, i);
 
                 if (notSpecialFlag) {
@@ -185,13 +185,11 @@ public static ClassInfo processTableIntoClassInfo(ParamInfo paramInfo)
 
                     // field Name
                     // 2019-09-08 yj 添加是否下划线转换为驼峰的判断
-                    // 2023-8-27 zhangfei 支持原始列名任意命名风格, 不依赖用户是否输入下划线
+                    // 2023-8-27 L&J 支持原始列名任意命名风格, 不依赖用户是否输入下划线
                     String fieldName = null;
                     if (ParamInfo.NAME_CASE_TYPE.CAMEL_CASE.equals(nameCaseType)) {
-                        fieldName = StringUtils.lowerCaseFirst(StringUtils.underlineToCamelCase(columnName));
-                        if (fieldName.contains("_")) {
-                            fieldName = fieldName.replaceAll("_", "");
-                        }
+                        // 2024-1-27 L&J 适配任意(maybe)原始风格转小写驼峰
+                        fieldName = StringUtils.toLowerCamel(columnName);
                     } else if (ParamInfo.NAME_CASE_TYPE.UNDER_SCORE_CASE.equals(nameCaseType)) {
                         fieldName = StringUtils.toUnderline(columnName, false);
                     } else if (ParamInfo.NAME_CASE_TYPE.UPPER_UNDER_SCORE_CASE.equals(nameCaseType)) {

generator-web/src/test/java/FooTest.java

@@ -19,6 +19,8 @@ public static void main(String[] args) {
         System.out.println(StringUtils.toUnderline("UserName",true));
         System.out.println(StringUtils.toUnderline("user_NameGgg_x-UUU",true));
         System.out.println(StringUtils.toUnderline("username",true));
+
+        System.out.println(StringUtils.underlineToCamelCase("CREATE_TIME"));
     }
 
 

generator-web/src/test/java/com/softdev/system/generator/util/StringUtilsTest.java

@@ -0,0 +1,81 @@
+package com.softdev.system.generator.util;
+
+import org.junit.Test;
+
+import static junit.framework.TestCase.assertEquals;
+import static junit.framework.TestCase.assertTrue;
+import static org.junit.Assert.assertFalse;
+
+public class StringUtilsTest {
+
+    @Test
+    public void toLowerCamel() {
+        System.out.println(StringUtils.toLowerCamel("hello_world"));
+        System.out.println(StringUtils.toLowerCamel("HELLO_WO-RLD-IK"));
+        System.out.println(StringUtils.toLowerCamel("HELLO_WORLD-IKabc"));
+        System.out.println(StringUtils.toLowerCamel("HELLO-WORLD-IKabc"));
+        System.out.println(StringUtils.toLowerCamel("HELLO-123WORLD-IKabc"));
+        System.out.println(StringUtils.toLowerCamel("helloWorldOKla"));
+        assertEquals("helloWorldChina", StringUtils.toLowerCamel("hello_-_world-cHina"));
+    }
+
+    @Test
+    public void upperCaseFirstShouldReturnStringWithFirstLetterCapitalized() {
+        assertEquals("Hello", StringUtils.upperCaseFirst("hello"));
+    }
+
+    @Test
+    public void upperCaseFirstShouldReturnEmptyStringWhenInputIsEmpty() {
+        assertEquals("", StringUtils.upperCaseFirst(""));
+    }
+
+    @Test
+    public void lowerCaseFirstShouldReturnStringWithFirstLetterLowercased() {
+        assertEquals("hello", StringUtils.lowerCaseFirst("Hello"));
+    }
+
+    @Test
+    public void lowerCaseFirstShouldReturnEmptyStringWhenInputIsEmpty() {
+        assertEquals("", StringUtils.lowerCaseFirst(""));
+    }
+
+    @Test
+    public void underlineToCamelCaseShouldReturnCamelCaseString() {
+        assertEquals("helloWorld", StringUtils.underlineToCamelCase("hello_world"));
+    }
+
+    @Test
+    public void underlineToCamelCaseShouldReturnEmptyStringWhenInputIsEmpty() {
+        assertEquals("", StringUtils.underlineToCamelCase(""));
+    }
+
+    @Test
+    public void toUnderlineShouldReturnUnderlinedString() {
+        assertEquals("hello_world", StringUtils.toUnderline("helloWorld", false));
+    }
+
+    @Test
+    public void toUnderlineShouldReturnEmptyStringWhenInputIsEmpty() {
+        assertEquals("", StringUtils.toUnderline("", false));
+    }
+
+    @Test
+    public void toCamelShouldReturnCamelCaseString() {
+        assertEquals("helloWorld", StringUtils.toLowerCamel("hello_world"));
+    }
+
+    @Test
+    public void toCamelShouldReturnEmptyStringWhenInputIsEmpty() {
+        assertEquals("", StringUtils.toLowerCamel(""));
+    }
+
+    @Test
+    public void isNotNullShouldReturnTrueWhenStringIsNotEmpty() {
+        assertTrue(StringUtils.isNotNull("hello"));
+    }
+
+    @Test
+    public void isNotNullShouldReturnFalseWhenStringIsEmpty() {
+        assertFalse(StringUtils.isNotNull(""));
+    }
+}