private static final String COMMENT_START = "<!--";
            private static final String COMMENT_END = "-->";

            // 該字符串是否是html注釋行，包含注釋的開始標簽且結束標簽"<!-- -->"
            private static boolean isCommentLine(String line) {

                return containsCommentStartTag(line) && containsCommentEndTag(line)
                    && line.indexOf(COMMENT_START) < line.indexOf(COMMENT_END);
            }

            // 是否包含注釋的開始標簽
            private static boolean containsCommentStartTag(String line) {
                return StringUtils.isNotEmpty(line) &&
 line.indexOf(COMMENT_START) != -1;
            }

            // 是否包含注釋的結束標簽
            private static boolean containsCommentEndTag(String line) {
                return StringUtils.isNotEmpty(line) &&
 line.indexOf(COMMENT_END) != -1;
            }

            /**
             * 刪除該行中的注釋部分
             */
            private static String deleteCommentInLine(String line) {

                while (isCommentLine(line)) {
                    int start = line.indexOf(COMMENT_START) + COMMENT_START.length();
                    int end = line.indexOf(COMMENT_END);
                    line = line.substring(start, end);
                }
                return line;
            }

            // 獲取開始注釋符號之前的內(nèi)容
            private static String getBeforeCommentContent(String line) {
                if (!containsCommentStartTag(line))
                    return line;

                return line.substring(0, line.indexOf(COMMENT_START));
            }

            // 獲取結束注釋行之后的內(nèi)容
            private static String getAfterCommentContent(String line) {
                if (!containsCommentEndTag(line))
                    return line;

                return line.substring(line.indexOf(COMMENT_END) + COMMENT_END.length());
            }
        }

        /**
         * 讀取html內(nèi)容，去掉注釋
         */
        public static String readHtmlContentWithoutComment(BufferedReader reader) throws IOException {
            StringBuilder builder = new StringBuilder();
            String line = null;

            // 當前行是否在注釋中
            boolean inComment = false;
            while (ObjectUtils.isNotNull(line = reader.readLine())) {

                // 如果包含注釋標簽
                while (HtmlCommentDetector.containsCommentStartTag(line) ||
                        HtmlCommentDetector.containsCommentEndTag(line)) {

                    // 將成對出現(xiàn)的注釋標簽之間的內(nèi)容刪除
                    // <!-- comment -->
                    if (HtmlCommentDetector.isCommentLine(line)) {
                        line = HtmlCommentDetector.deleteCommentInLine(line);
                    }

                    // 如果不是注釋行，但是依然存在開始標簽和結束標簽，結束標簽一定在開始標簽之前
                    // xxx -->content<!--
                    else if (HtmlCommentDetector.containsCommentStartTag(line) && HtmlCommentDetector.containsCommentEndTag(line)) {
                        // 獲取結束標簽之后，開始標簽之前的文本，并且將 inComment設置為true
                        line = HtmlCommentDetector.getAfterCommentContent(line);
                        line = HtmlCommentDetector.getBeforeCommentContent(line);
                        inComment = true;
                    }

                    // 如果只存在開始標簽，因為注釋標簽不支持嵌套，只有開始標簽的行一定不會inComment
                    // content <!--
                    else if (!inComment && HtmlCommentDetector.containsCommentStartTag(line)) {
                        // 將 inComment 設置為true。獲取開始標簽之前的內(nèi)容
                        inComment = true;
                        line = HtmlCommentDetector.getBeforeCommentContent(line);
                    }

                    // 如果只存在結束標簽，因為注釋標簽不支持嵌套，只有結束標簽的行一定inComment
                    // -->content
                    else if (inComment && HtmlCommentDetector.containsCommentEndTag(line)) {
                        // 將 inComment 設置為false。獲取結束標簽之后的內(nèi)容
                        inComment = false;
                        line = HtmlCommentDetector.getAfterCommentContent(line);
                    }

                    // 保存該行非注釋的內(nèi)容
                    if (StringUtils.isNotEmpty(line))
                        builder.append(line);
                }

                // 保存該行不存在任何注釋標簽的并且inComment = false的行
                if (StringUtils.isNotEmpty(line) && !inComment)
                    builder.append(line);
            }
            return builder.toString();
        }
    }