private int maxLength=2000;//字节长度不能超过2000 private String validateStr(String str){ if(StringUtils.isNotBlank(str)){ StringBuffer sb=new StringBuffer(str); if(sb.length()>maxLength/2){ String string=sb.toString(); if(string.replaceAll("[^\\x00-\\xff]","**").length()>maxLength){ int start=maxLength/2; int dbLength=sb.substring(0,start).replaceAll("[^\\x00-\\xff]","**").length(); for(;start<sb.length();start++){ dbLength+=sb.substring(start,start+1).replaceAll("[^\x00-\xff]","**").length(); if(dbLength>maxLength){ break; } sb.setLength(start); } } } return sb.toString(); } return str; }
判断字符串长度是否超过指定的长度
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转载自dongxylove.iteye.com/blog/2285423
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