大家一般怎么对内容中的一些无效字符做过滤呢？:配置报错 

Java 可以用如下方法来来过滤

/** * Function to strip control characters from a string. * Any character below a space will be stripped from the string. * @param iString the input string to be stripped. * @return a string containing the characters from iString minus any control characters. */ public String stripControlChars(String iString) { StringBuffer result = new StringBuffer(iString); int idx = result.length(); while (idx-- > 0) { if (result.charAt(idx) < 0x20 && result.charAt(idx) != 0x9 && result.charAt(idx) != 0xA && result.charAt(idx) != 0xD) { if (log.isDebugEnabled()) { log.debug("deleted character at: "+idx); } result.deleteCharAt(idx); } } return result.toString(); }

stringName.replaceAll("[^\\p{Print}]", "");