很多问题都是因为中文问题造成的 如文件名最好别用中文 现在的解决方法一般是产生一个ID,将这个ID做文件名 网页上如果url带汉字也经常出错 现在的解决方法一般用urlencode编码

现在用了这个转化，就好多了

原理：利用哈希表技术   Hashtable ht=new Hashtable(10);

1.添加索引，如： ht.put("-20295","ang");2.倒序遍历，如：  while(!ht.containsKey(Integer.toString(num)))num--;

<%@ page language="java" import="java.util.*" contentType="text/html" %><%!Hashtable ht=new Hashtable(10);String g(Integer n){ int num=n.intValue(); if(num>0&&num<160){  return String.valueOf((char)num); } else if(num<-20319||num>-10247){  return ""; } else{  if(ht.size()==0){b();}  while(!ht.containsKey(Integer.toString(num)))num--;  return ht.get(Integer.toString(num)).toString(); }}String c(String str){ char[] hz=str.toCharArray(); int len=str.length(); int p,q; String ret=""; for(int i=0;i<len;i++){  p=(int)hz[i];  if(p>160){   q=(int)hz[++i];   p=p*256+q-65536;  }  ret+=g(new Integer(p)); } return ret;}void b(){ ht.put("-20319","a"); ht.put("-20317","ai"); ht.put("-20304","an"); ht.put("-20295","ang"); ht.put("-20292","ao"); ht.put("-20283","ba"); ht.put("-20265","bai"); ht.put("-20257","ban"); ht.put("-20242","bang"); ht.put("-20230","bao"); ht.put("-20051","bei"); ht.put("-20036","ben"); ht.put("-20032","beng"); ht.put("-20026","bi"); ht.put("-20002","bian"); ht.put("-19990","biao"); ht.put("-19986","bie"); ht.put("-19982","bin"); ht.put("-19976","bing"); ht.put("-19805","bo"); ht.put("-19784","bu"); ht.put("-19775","ca"); ht.put("-19774","cai"); ht.put("-19763","can"); ht.put("-19756","cang"); ht.put("-19751","cao"); ht.put("-19746","ce"); ht.put("-19741","ceng"); ht.put("-19739","cha"); ht.put("-19728","chai"); ht.put("-19725","chan"); ht.put("-19715","chang"); ht.put("-19540","chao"); ht.put("-19531","che"); ht.put("-19525","chen"); ht.put("-19515","cheng"); ht.put("-19500","chi"); ht.put("-19484","chong"); ht.put("-19479","chou"); ht.put("-19467","chu"); ht.put("-19289","chuai"); ht.put("-19288","chuan"); ht.put("-19281","chuang"); ht.put("-19275","chui"); ht.put("-19270","chun"); ht.put("-19263","chuo"); ht.put("-19261","ci"); ht.put("-19249","cong"); ht.put("-19243","cou"); ht.put("-19242","cu"); ht.put("-19238","cuan"); ht.put("-19235","cui"); ht.put("-19227","cun"); ht.put("-19224","cuo"); ht.put("-19218","da"); ht.put("-19212","dai"); ht.put("-19038","dan"); ht.put("-19023","dang"); ht.put("-19018","dao"); ht.put("-19006","de"); ht.put("-19003","deng"); ht.put("-18996","di"); ht.put("-18977","dian"); ht.put("-18961","diao"); ht.put("-18952","die"); ht.put("-18783","ding"); ht.put("-18774","diu"); ht.put("-18773","dong"); ht.put("-18763","dou"); ht.put("-18756","du"); ht.put("-18741","duan"); ht.put("-18735","dui"); ht.put("-18731","dun"); ht.put("-18722","duo"); ht.put("-18710","e"); ht.put("-18697","en"); ht.put("-18696","er"); ht.put("-18526","fa"); ht.put("-18518","fan"); ht.put("-18501","fang"); ht.put("-18490","fei"); ht.put("-18478","fen"); ht.put("-18463","feng"); ht.put("-18448","fo"); ht.put("-18447","fou"); ht.put("-18446","fu"); ht.put("-18239","ga"); ht.put("-18237","gai"); ht.put("-18231","gan"); ht.put("-18220","gang"); ht.put("-18211","gao"); ht.put("-18201","ge"); ht.put("-18184","gei"); ht.put("-18183","gen"); ht.put("-18181","geng"); ht.put("-18012","gong"); ht.put("-17997","gou"); ht.put("-17988","gu"); ht.put("-17970","gua"); ht.put("-17964","guai"); ht.put("-17961","guan"); ht.put("-17950","guang"); ht.put("-17947","gui"); ht.put("-17931","gun"); ht.put("-17928","guo"); ht.put("-17922","ha"); ht.put("-17759","hai"); ht.put("-17752","han"); ht.put("-17733","hang"); ht.put("-17730","hao"); ht.put("-17721","he"); ht.put("-17703","hei"); ht.put("-17701","hen"); ht.put("-17697","heng"); ht.put("-17692","hong"); ht.put("-17683","hou"); ht.put("-17676","hu"); ht.put("-17496","hua"); ht.put("-17487","huai"); ht.put("-17482","huan"); ht.put("-17468","huang"); ht.put("-17454","hui"); ht.put("-17433","hun"); ht.put("-17427","huo"); ht.put("-17417","ji"); ht.put("-17202","jia"); ht.put("-17185","jian"); ht.put("-16983","jiang"); ht.put("-16970","jiao"); ht.put("-16942","jie"); ht.put("-16915","jin"); ht.put("-16733","jing"); ht.put("-16708","jiong"); ht.put("-16706","jiu"); ht.put("-16689","ju"); ht.put("-16664","juan"); ht.put("-16657","jue"); ht.put("-16647","jun"); ht.put("-16474","ka"); ht.put("-16470","kai"); ht.put("-16465","kan"); ht.put("-16459","kang"); ht.put("-16452","kao"); ht.put("-16448","ke"); ht.put("-16433","ken"); ht.put("-16429","keng"); ht.put("-16427","kong"); ht.put("-16423","kou"); ht.put("-16419","ku"); ht.put("-16412","kua"); ht.put("-16407","kuai"); ht.put("-16403","kuan"); ht.put("-16401","kuang"); ht.put("-16393","kui"); ht.put("-16220","kun"); ht.put("-16216","kuo"); ht.put("-16212","la"); ht.put("-16205","lai"); ht.put("-16202","lan"); ht.put("-16187","lang"); ht.put("-16180","lao"); ht.put("-16171","le"); ht.put("-16169","lei"); ht.put("-16158","leng"); ht.put("-16155","li"); ht.put("-15959","lia"); ht.put("-15958","lian"); ht.put("-15944","liang"); ht.put("-15933","liao"); ht.put("-15920","lie"); ht.put("-15915","lin"); ht.put("-15903","ling"); ht.put("-15889","liu"); ht.put("-15878","long"); ht.put("-15707","lou"); ht.put("-15701","lu"); ht.put("-15681","lv"); ht.put("-15667","luan"); ht.put("-15661","lue"); ht.put("-15659","lun"); ht.put("-15652","luo"); ht.put("-15640","ma"); ht.put("-15631","mai"); ht.put("-15625","man"); ht.put("-15454","mang"); ht.put("-15448","mao"); ht.put("-15436","me"); ht.put("-15435","mei"); ht.put("-15419","men"); ht.put("-15416","meng"); ht.put("-15408","mi"); ht.put("-15394","mian"); ht.put("-15385","miao"); ht.put("-15377","mie"); ht.put("-15375","min"); ht.put("-15369","ming"); ht.put("-15363","miu"); ht.put("-15362","mo"); ht.put("-15183","mou"); ht.put("-15180","mu"); ht.put("-15165","na"); ht.put("-15158","nai"); ht.put("-15153","nan"); ht.put("-15150","nang"); ht.put("-15149","nao"); ht.put("-15144","ne"); ht.put("-15143","nei"); ht.put("-15141","nen"); ht.put("-15140","neng"); ht.put("-15139","ni"); ht.put("-15128","nian"); ht.put("-15121","niang"); ht.put("-15119","niao"); ht.put("-15117","nie"); ht.put("-15110","nin"); ht.put("-15109","ning"); ht.put("-14941","niu"); ht.put("-14937","nong"); ht.put("-14933","nu"); ht.put("-14930","nv"); ht.put("-14929","nuan"); ht.put("-14928","nue"); ht.put("-14926","nuo"); ht.put("-14922","o"); ht.put("-14921","ou"); ht.put("-14914","pa"); ht.put("-14908","pai"); ht.put("-14902","pan"); ht.put("-14894","pang"); ht.put("-14889","pao"); ht.put("-14882","pei"); ht.put("-14873","pen"); ht.put("-14871","peng"); ht.put("-14857","pi"); ht.put("-14678","pian"); ht.put("-14674","piao"); ht.put("-14670","pie"); ht.put("-14668","pin"); ht.put("-14663","ping"); ht.put("-14654","po"); ht.put("-14645","pu"); ht.put("-14630","qi"); ht.put("-14594","qia"); ht.put("-14429","qian"); ht.put("-14407","qiang"); ht.put("-14399","qiao"); ht.put("-14384","qie"); ht.put("-14379","qin"); ht.put("-14368","qing"); ht.put("-14355","qiong"); ht.put("-14353","qiu"); ht.put("-14345","qu"); ht.put("-14170","quan"); ht.put("-14159","que"); ht.put("-14151","qun"); ht.put("-14149","ran"); ht.put("-14145","rang"); ht.put("-14140","rao"); ht.put("-14137","re"); ht.put("-14135","ren"); ht.put("-14125","reng"); ht.put("-14123","ri"); ht.put("-14122","rong"); ht.put("-14112","rou"); ht.put("-14109","ru"); ht.put("-14099","ruan"); ht.put("-14097","rui"); ht.put("-14094","run"); ht.put("-14092","ruo"); ht.put("-14090","sa"); ht.put("-14087","sai"); ht.put("-14083","san"); ht.put("-13917","sang"); ht.put("-13914","sao"); ht.put("-13910","se"); ht.put("-13907","sen"); ht.put("-13906","seng"); ht.put("-13905","sha"); ht.put("-13896","shai"); ht.put("-13894","shan"); ht.put("-13878","shang"); ht.put("-13870","shao"); ht.put("-13859","she"); ht.put("-13847","shen"); ht.put("-13831","sheng"); ht.put("-13658","shi"); ht.put("-13611","shou"); ht.put("-13601","shu"); ht.put("-13406","shua"); ht.put("-13404","shuai"); ht.put("-13400","shuan"); ht.put("-13398","shuang"); ht.put("-13395","shui"); ht.put("-13391","shun"); ht.put("-13387","shuo"); ht.put("-13383","si"); ht.put("-13367","song"); ht.put("-13359","sou"); ht.put("-13356","su"); ht.put("-13343","suan"); ht.put("-13340","sui"); ht.put("-13329","sun"); ht.put("-13326","suo"); ht.put("-13318","ta"); ht.put("-13147","tai"); ht.put("-13138","tan"); ht.put("-13120","tang"); ht.put("-13107","tao"); ht.put("-13096","te"); ht.put("-13095","teng"); ht.put("-13091","ti"); ht.put("-13076","tian"); ht.put("-13068","tiao"); ht.put("-13063","tie"); ht.put("-13060","ting"); ht.put("-12888","tong"); ht.put("-12875","tou"); ht.put("-12871","tu"); ht.put("-12860","tuan"); ht.put("-12858","tui"); ht.put("-12852","tun"); ht.put("-12849","tuo"); ht.put("-12838","wa"); ht.put("-12831","wai"); ht.put("-12829","wan"); ht.put("-12812","wang"); ht.put("-12802","wei"); ht.put("-12607","wen"); ht.put("-12597","weng"); ht.put("-12594","wo"); ht.put("-12585","wu"); ht.put("-12556","xi"); ht.put("-12359","xia"); ht.put("-12346","xian"); ht.put("-12320","xiang"); ht.put("-12300","xiao"); ht.put("-12120","xie"); ht.put("-12099","xin"); ht.put("-12089","xing"); ht.put("-12074","xiong"); ht.put("-12067","xiu"); ht.put("-12058","xu"); ht.put("-12039","xuan"); ht.put("-11867","xue"); ht.put("-11861","xun"); ht.put("-11847","ya"); ht.put("-11831","yan"); ht.put("-11798","yang"); ht.put("-11781","yao"); ht.put("-11604","ye"); ht.put("-11589","yi"); ht.put("-11536","yin"); ht.put("-11358","ying"); ht.put("-11340","yo"); ht.put("-11339","yong"); ht.put("-11324","you"); ht.put("-11303","yu"); ht.put("-11097","yuan"); ht.put("-11077","yue"); ht.put("-11067","yun"); ht.put("-11055","za"); ht.put("-11052","zai"); ht.put("-11045","zan"); ht.put("-11041","zang"); ht.put("-11038","zao"); ht.put("-11024","ze"); ht.put("-11020","zei"); ht.put("-11019","zen"); ht.put("-11018","zeng"); ht.put("-11014","zha"); ht.put("-10838","zhai"); ht.put("-10832","zhan"); ht.put("-10815","zhang"); ht.put("-10800","zhao"); ht.put("-10790","zhe"); ht.put("-10780","zhen"); ht.put("-10764","zheng"); ht.put("-10587","zhi"); ht.put("-10544","zhong"); ht.put("-10533","zhou"); ht.put("-10519","zhu"); ht.put("-10331","zhua"); ht.put("-10329","zhuai"); ht.put("-10328","zhuan"); ht.put("-10322","zhuang"); ht.put("-10315","zhui"); ht.put("-10309","zhun"); ht.put("-10307","zhuo"); ht.put("-10296","zi"); ht.put("-10281","zong"); ht.put("-10274","zou"); ht.put("-10270","zu"); ht.put("-10262","zuan"); ht.put("-10260","zui"); ht.put("-10256","zun"); ht.put("-10254","zuo"); ht.put("-10247","zz");}%><%if(request.getParameter("hz")!=null){ out.println(c(request.getParameter("hz")));}%><form method=post>请在此处输入中文：<input name=hz></form>