完善脱敏组件的注释

yudao-framework/yudao-spring-boot-starter-desensitize/src/main/java/cn/iocoder/yudao/framework/desensitize/core/slider/annotation/SliderDesensitize.java

@@ -29,6 +29,7 @@ public @interface SliderDesensitize {
 
     /**
      * 替换规则，会将前缀后缀保留后，全部替换成 replacer
+     *
      * 例如：prefixKeep = 1; suffixKeep = 2; replacer = "*";
      * 原始字符串  123456
      * 脱敏后     1***56

yudao-framework/yudao-spring-boot-starter-desensitize/src/main/java/cn/iocoder/yudao/framework/desensitize/core/slider/handler/AbstractSliderDesensitizationHandler.java

@@ -0,0 +1,78 @@
+package cn.iocoder.yudao.framework.desensitize.core.slider.handler;
+
+import cn.iocoder.yudao.framework.desensitize.core.base.handler.DesensitizationHandler;
+
+import java.lang.annotation.Annotation;
+
+/**
+ * 滑动脱敏处理器抽象类，已实现通用的方法
+ *
+ * @author gaibu
+ */
+public abstract class AbstractSliderDesensitizationHandler<T extends Annotation>
+        implements DesensitizationHandler<T> {
+
+    @Override
+    public String desensitize(String origin, T annotation) {
+        int prefixKeep = getPrefixKeep(annotation);
+        int suffixKeep = getSuffixKeep(annotation);
+        String replacer = getReplacer(annotation);
+        int length = origin.length();
+
+        // 情况一：原始字符串长度小于等于保留长度，则原始字符串全部替换
+        if (prefixKeep >= length || suffixKeep >= length) {
+            return buildReplacerByLength(replacer, length);
+        }
+
+        // 情况二：原始字符串长度小于等于前后缀保留字符串长度，则原始字符串全部替换
+        if ((prefixKeep + suffixKeep) >= length) {
+            return buildReplacerByLength(replacer, length);
+        }
+
+        // 情况三：原始字符串长度大于前后缀保留字符串长度，则替换中间字符串
+        int interval = length - prefixKeep - suffixKeep;
+        return origin.substring(0, prefixKeep) +
+                buildReplacerByLength(replacer, interval) +
+                origin.substring(prefixKeep + interval);
+    }
+
+    /**
+     * 根据长度循环构建替换符
+     *
+     * @param replacer 替换符
+     * @param length   长度
+     * @return 构建后的替换符
+     */
+    private String buildReplacerByLength(String replacer, int length) {
+        StringBuilder builder = new StringBuilder();
+        for (int i = 0; i < length; i++) {
+            builder.append(replacer);
+        }
+        return builder.toString();
+    }
+
+    /**
+     * 前缀保留长度
+     *
+     * @param annotation 注解信息
+     * @return 前缀保留长度
+     */
+    abstract Integer getPrefixKeep(T annotation);
+
+    /**
+     * 后缀保留长度
+     *
+     * @param annotation 注解信息
+     * @return 后缀保留长度
+     */
+    abstract Integer getSuffixKeep(T annotation);
+
+    /**
+     * 替换符
+     *
+     * @param annotation 注解信息
+     * @return 替换符
+     */
+    abstract String getReplacer(T annotation);
+
+}

yudao-framework/yudao-spring-boot-starter-desensitize/src/main/java/cn/iocoder/yudao/framework/desensitize/core/slider/handler/BankCardDesensitization.java

@@ -7,7 +7,7 @@ import cn.iocoder.yudao.framework.desensitize.core.slider.annotation.BankCardDes
  *
  * @author gaibu
  */
-public class BankCardDesensitization extends AbstractDesensitizationHandler<BankCardDesensitize> {
+public class BankCardDesensitization extends AbstractSliderDesensitizationHandler<BankCardDesensitize> {
 
     @Override
     Integer getPrefixKeep(BankCardDesensitize annotation) {

yudao-framework/yudao-spring-boot-starter-desensitize/src/main/java/cn/iocoder/yudao/framework/desensitize/core/slider/handler/CarLicenseDesensitization.java

@@ -7,7 +7,7 @@ import cn.iocoder.yudao.framework.desensitize.core.slider.annotation.CarLicenseD
  *
  * @author gaibu
  */
-public class CarLicenseDesensitization extends AbstractDesensitizationHandler<CarLicenseDesensitize> {
+public class CarLicenseDesensitization extends AbstractSliderDesensitizationHandler<CarLicenseDesensitize> {
     @Override
     Integer getPrefixKeep(CarLicenseDesensitize annotation) {
         return annotation.prefixKeep();

yudao-framework/yudao-spring-boot-starter-desensitize/src/main/java/cn/iocoder/yudao/framework/desensitize/core/slider/handler/ChineseNameDesensitization.java

@@ -7,7 +7,7 @@ import cn.iocoder.yudao.framework.desensitize.core.slider.annotation.ChineseName
  *
  * @author gaibu
  */
-public class ChineseNameDesensitization extends AbstractDesensitizationHandler<ChineseNameDesensitize> {
+public class ChineseNameDesensitization extends AbstractSliderDesensitizationHandler<ChineseNameDesensitize> {
 
     @Override
     Integer getPrefixKeep(ChineseNameDesensitize annotation) {

yudao-framework/yudao-spring-boot-starter-desensitize/src/main/java/cn/iocoder/yudao/framework/desensitize/core/slider/handler/DefaultDesensitizationHandler.java

@@ -7,7 +7,7 @@ import cn.iocoder.yudao.framework.desensitize.core.slider.annotation.SliderDesen
  *
  * @author gaibu
  */
-public class DefaultDesensitizationHandler extends AbstractDesensitizationHandler<SliderDesensitize> {
+public class DefaultDesensitizationHandler extends AbstractSliderDesensitizationHandler<SliderDesensitize> {
     @Override
     Integer getPrefixKeep(SliderDesensitize annotation) {
         return annotation.prefixKeep();

yudao-framework/yudao-spring-boot-starter-desensitize/src/main/java/cn/iocoder/yudao/framework/desensitize/core/slider/handler/FixedPhoneDesensitization.java

@@ -7,7 +7,7 @@ import cn.iocoder.yudao.framework.desensitize.core.slider.annotation.FixedPhoneD
  *
  * @author gaibu
  */
-public class FixedPhoneDesensitization extends AbstractDesensitizationHandler<FixedPhoneDesensitize> {
+public class FixedPhoneDesensitization extends AbstractSliderDesensitizationHandler<FixedPhoneDesensitize> {
     @Override
     Integer getPrefixKeep(FixedPhoneDesensitize annotation) {
         return annotation.prefixKeep();

yudao-framework/yudao-spring-boot-starter-desensitize/src/main/java/cn/iocoder/yudao/framework/desensitize/core/slider/handler/IdCardDesensitization.java

@@ -7,7 +7,7 @@ import cn.iocoder.yudao.framework.desensitize.core.slider.annotation.IdCardDesen
  *
  * @author gaibu
  */
-public class IdCardDesensitization extends AbstractDesensitizationHandler<IdCardDesensitize> {
+public class IdCardDesensitization extends AbstractSliderDesensitizationHandler<IdCardDesensitize> {
     @Override
     Integer getPrefixKeep(IdCardDesensitize annotation) {
         return annotation.prefixKeep();

yudao-framework/yudao-spring-boot-starter-desensitize/src/main/java/cn/iocoder/yudao/framework/desensitize/core/slider/handler/MobileDesensitization.java

@@ -7,7 +7,7 @@ import cn.iocoder.yudao.framework.desensitize.core.slider.annotation.MobileDesen
  *
  * @author gaibu
  */
-public class MobileDesensitization extends AbstractDesensitizationHandler<MobileDesensitize> {
+public class MobileDesensitization extends AbstractSliderDesensitizationHandler<MobileDesensitize> {
 
     @Override
     Integer getPrefixKeep(MobileDesensitize annotation) {

yudao-framework/yudao-spring-boot-starter-desensitize/src/main/java/cn/iocoder/yudao/framework/desensitize/core/slider/handler/PasswordDesensitization.java

@@ -7,7 +7,7 @@ import cn.iocoder.yudao.framework.desensitize.core.slider.annotation.PasswordDes
  *
  * @author gaibu
  */
-public class PasswordDesensitization extends AbstractDesensitizationHandler<PasswordDesensitize> {
+public class PasswordDesensitization extends AbstractSliderDesensitizationHandler<PasswordDesensitize> {
     @Override
     Integer getPrefixKeep(PasswordDesensitize annotation) {
         return annotation.prefixKeep();