java 后台 反向匹配逻辑（敏感字符过滤）

    
    public static Boolean containDirty(String str) throws IOException {
        ClassPathResource classPathResource = new ClassPathResource("sensitiveWords");
        InputStream inputStream = classPathResource.getInputStream();
        String result = IOUtils.toString(inputStream, String.valueOf(StandardCharsets.UTF_8));

        String[] dictionary = result.replaceAll(" ", "").split("rn");  //取得关键词词典
        if (str != null && !str.equals("")) {
            Arrays.sort(dictionary);
            int len = str.length();
            for (int i = 0; i < len; i++) {
                for (int j = len; j > i; j--) {
                    int rs = Arrays.binarySearch(dictionary, str.substring(i, j));
                    if (rs >= 0) {
                        return true;
                    }
                }
            }
        }
        return false;
    }

需要在resource 下建立自己的敏感词词库