增加html格式化方法

basic-util/src/main/java/ink/wgink/util/HtmlHelper.java

@@ -1,5 +1,8 @@
 package ink.wgink.util;
 
+import org.apache.commons.lang3.StringUtils;
+import org.jsoup.Jsoup;
+
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
@@ -56,4 +59,48 @@ public class HtmlHelper {
         return html;
     }
 
+    /**
+     * 格式化HTML代码
+     *
+     * @param code        html代码
+     * @param indentType  缩进类型，默认是空格
+     * @param indentCount 缩进数量
+     * @return
+     */
+    public static String formatHtml(String code, String indentType, int indentCount) {
+        if (StringUtils.isBlank(code)) {
+            return null;
+        }
+        code = code.replaceAll(">\\s+<", "><");
+        String html = Jsoup.parseBodyFragment(code).body().html();
+        if (StringUtils.isBlank(html)) {
+            return null;
+        }
+        if (indentType == null) {
+            indentType = " ";
+        }
+        if (indentCount < 0) {
+            indentCount = 0;
+        }
+        String[] htmlArray = html.split("\n");
+        String result = "";
+        for (String htmlLine : htmlArray) {
+            int startIndex = htmlLine.indexOf("<");
+            String tab = "";
+            for (int i = 0; i < startIndex + indentCount; i++) {
+                tab += indentType;
+            }
+            htmlLine = tab + htmlLine.trim();
+            System.out.println(htmlLine);
+            result += htmlLine + "\n";
+        }
+        return result;
+    }
+
+    public static void main(String[] args) {
+        String code = "<div id=\"input_1\" class=\"layui-form-item \" data-id=\"input_1\" data-tag=\"input\" data-index=\"0\">   <label class=\"layui-form-label layui-form-required\" style=\"width: 110px;\"><span style=\"color:red;\">*</span>单行文本:</label>   <div class=\"layui-input-block\" style=\"margin-left: 110px\">       <input name=\"input_1\" value=\"\" placeholder=\"请输入\" class=\"layui-input\" lay-vertype=\"tips\" lay-verify=\"required\" style=\"width:100%\">   </div></div>";
+        String result = formatHtml(code, "\t", 0);
+        System.out.println(result);
+    }
+
 }