读书人
栏目▼

jsp URL中文传参乱码有关问题

发布时间： 2013-10-27 15:21:49 作者： rapoo

jsp URL中文传参乱码问题

一、在请求页面的请求参数需要用encodeURI进行转码,然后在接收请求的页面需要进行字符集转换。

本例中的请求和接收页面的字符集都是UTF-8:

1.请求的JSP页面用JavaScript的encodeURI()方法将参数转码:

function toView(param){

???? var encodeparam = encodeURI(param) ;

???? window.location.href="/naias/advAna_form.do?method=showDetail&title="+encodeparam ;

}

2.在跳转的Action中进行字符集转换:

public ActionForward excute(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response){

??? String title= request.getParameter("title");
??? title= new String( title.getBytes("iso-8859-1"), "UTF-8");

??? System.out.println(title);

}

二、为编码为UTF-8的JSP页面传参，对于中文乱码的解决分为两种情况：

?

1.通过GET方式传参，通过new String(request.getParameter("").getBytes("ISO-8859-1"),"UTF-8"); 的方式转换为需要的编码，如UTF-8等。

?

2.通过POST方式传参，通过声明request.setCharacterEncoding("UTF-8");的方式声明编码类型来解决。

?

三、可以通过加过滤器，解决乱码 ，但是对GET方式提交的参数(也就是通过地址栏穿的参数)不起作用。

?

四、如果用tomcat服务器，可以更tomcat的配置文件将字符集编码设置为UTF-8即可。

?

以上方法都不行的话，提供如下绝对行的方法：

直接给代码吧，把如下代码copy到Escape.java文件中

[java] view plaincopy
  1. package?com.ctgusec.oaPlus;??????/**????
  2. ?*?将url中文参数编码或者反编码?????*?javascript?escape/unescape?编码的?Java?实现????
  3. ?*?author?agile?????*?使用方法：?
  4. ?*?Escape.unescape(vaule);//导入这个java文件，调用unescape方法，参数为js提交过来的16进制字符串??*?js页面提交url方法：?
  5. ?*?escape()?是JavaScript函数，对字符串转码，解决中文参数问题??*?URL:servlet?属性="+escape(escape(str)?;//参数str是需要提交的中文字符?
  6. ?*??*/?????
  7. public?class?Escape{??????????private?final?static?String[]?hex?=?{??????
  8. ????????"00","01","02","03","04","05","06","07","08","09","0A","0B","0C","0D","0E","0F",??????????????"10","11","12","13","14","15","16","17","18","19","1A","1B","1C","1D","1E","1F",??????
  9. ????????"20","21","22","23","24","25","26","27","28","29","2A","2B","2C","2D","2E","2F",??????????????"30","31","32","33","34","35","36","37","38","39","3A","3B","3C","3D","3E","3F",??????
  10. ????????"40","41","42","43","44","45","46","47","48","49","4A","4B","4C","4D","4E","4F",??????????????"50","51","52","53","54","55","56","57","58","59","5A","5B","5C","5D","5E","5F",??????
  11. ????????"60","61","62","63","64","65","66","67","68","69","6A","6B","6C","6D","6E","6F",??????????????"70","71","72","73","74","75","76","77","78","79","7A","7B","7C","7D","7E","7F",??????
  12. ????????"80","81","82","83","84","85","86","87","88","89","8A","8B","8C","8D","8E","8F",??????????????"90","91","92","93","94","95","96","97","98","99","9A","9B","9C","9D","9E","9F",??????
  13. ????????"A0","A1","A2","A3","A4","A5","A6","A7","A8","A9","AA","AB","AC","AD","AE","AF",??????????????"B0","B1","B2","B3","B4","B5","B6","B7","B8","B9","BA","BB","BC","BD","BE","BF",??????
  14. ????????"C0","C1","C2","C3","C4","C5","C6","C7","C8","C9","CA","CB","CC","CD","CE","CF",??????????????"D0","D1","D2","D3","D4","D5","D6","D7","D8","D9","DA","DB","DC","DD","DE","DF",??????
  15. ????????"E0","E1","E2","E3","E4","E5","E6","E7","E8","E9","EA","EB","EC","ED","EE","EF",??????????????"F0","F1","F2","F3","F4","F5","F6","F7","F8","F9","FA","FB","FC","FD","FE","FF"?????
  16. ????};??????????private?final?static?byte[]?val?=?{??????
  17. ????????0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,??????????????0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,??????
  18. ????????0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,??????????????0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,??????
  19. ????????0x3F,0x0A,0x0B,0x0C,0x0D,0x0E,0x0F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,??????????????0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,??????
  20. ????????0x3F,0x0A,0x0B,0x0C,0x0D,0x0E,0x0F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,??????????????0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,??????
  21. ????????0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,??????????????0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,??????
  22. ????????0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,??????????????0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,??????
  23. ????????0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,??????????????0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,??????
  24. ????????0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,??????????????0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F,0x3F?????
  25. ????};??????????public?static?String?escape(String?s)?{??????
  26. ????????StringBuffer?sbuf?=?new?StringBuffer();??????????????int?len?=?s.length();??????
  27. ????????for?(int?i?=?0;?i?<?len;?i++)?{??????????????????int?ch?=?s.charAt(i);??????
  28. ????????????if?(ch?==?'?')?{????????????????????????//?space?:?map?to?'+'???????????????????????sbuf.append('+');??????
  29. ????????????}?else?if?('A'?<=?ch?&&?ch?<=?'Z')?{????//?'A'..'Z'?:?as?it?was??????????????????????sbuf.append((char)ch);??????
  30. ????????????}?else?if?('a'?<=?ch?&&?ch?<=?'z')?{????//?'a'..'z'?:?as?it?was??????????????????????sbuf.append((char)ch);??????
  31. ????????????}?else?if?('0'?<=?ch?&&?ch?<=?'9')?{????//?'0'..'9'?:?as?it?was??????????????????????sbuf.append((char)ch);??????
  32. ????????????}?else?if?(ch?==?'-'?||?ch?==?'_'???????//?unreserved?:?as?it?was??????????????????????||?ch?==?'.'?||?ch?==?'!'??????
  33. ????????????????||?ch?==?'~'?||?ch?==?'*'??????????????????????||?ch?==?'\''?||?ch?==?'('??????
  34. ????????????????||?ch?==?')')?{??????????????????????sbuf.append((char)ch);??????
  35. ????????????}?else?if?(ch?<=?0x007F)?{??????????????//?other?ASCII?:?map?to?%XX??????????????????????sbuf.append('%');??????
  36. ????????????????sbuf.append(hex[ch]);??????????????????}?else?{????????????????????????????????//?unicode?:?map?to?%uXXXX??????
  37. ????????????????sbuf.append('%');??????????????????????sbuf.append('u');??????
  38. ????????????????sbuf.append(hex[(ch?>>>?8)]);??????????????????????sbuf.append(hex[(0x00FF?&?ch)]);??????
  39. ????????????}??????????????}??????
  40. ????????return?sbuf.toString();??????????}??????
  41. ????public?static?String?unescape(String?s)?{??????????????StringBuffer?sbuf?=?new?StringBuffer();??????
  42. ????????int?i?=?0;??????????????int?len?=?s.length();??????
  43. ????????while?(i?<?len)?{??????????????????int?ch?=?s.charAt(i);??????
  44. ????????????if?(ch?==?'+')?{????????????????????????//?+?:?map?to?'?'???????????????????????sbuf.append('?');??????
  45. ????????????}?else?if?('A'?<=?ch?&&?ch?<=?'Z')?{????//?'A'..'Z'?:?as?it?was??????????????????????sbuf.append((char)ch);??????
  46. ????????????}?else?if?('a'?<=?ch?&&?ch?<=?'z')?{????//?'a'..'z'?:?as?it?was??????????????????????sbuf.append((char)ch);??????
  47. ????????????}?else?if?('0'?<=?ch?&&?ch?<=?'9')?{????//?'0'..'9'?:?as?it?was??????????????????????sbuf.append((char)ch);??????
  48. ????????????}?else?if?(ch?==?'-'?||?ch?==?'_'???????//?unreserved?:?as?it?was??????????????????????||?ch?==?'.'?||?ch?==?'!'??????
  49. ????????????????||?ch?==?'~'?||?ch?==?'*'??????????????????????||?ch?==?'\''?||?ch?==?'('??????
  50. ????????????????||?ch?==?')')?{??????????????????????sbuf.append((char)ch);??????
  51. ????????????}?else?if?(ch?==?'%')?{??????????????????????int?cint?=?0;??????
  52. ????????????????if?('u'?!=?s.charAt(i+1))?{?????????//?%XX?:?map?to?ascii(XX)??????????????????????????cint?=?(cint?<<?4)?|?val[s.charAt(i+1)];??????
  53. ????????????????????cint?=?(cint?<<?4)?|?val[s.charAt(i+2)];??????????????????????????i+=2;??????
  54. ????????????????}?else?{????????????????????????????//?%uXXXX?:?map?to?unicode(XXXX)??????????????????????????cint?=?(cint?<<?4)?|?val[s.charAt(i+2)];??????
  55. ????????????????????cint?=?(cint?<<?4)?|?val[s.charAt(i+3)];??????????????????????????cint?=?(cint?<<?4)?|?val[s.charAt(i+4)];??????
  56. ????????????????????cint?=?(cint?<<?4)?|?val[s.charAt(i+5)];??????????????????????????i+=5;??????
  57. ????????????????}??????????????????????sbuf.append((char)cint);??????
  58. ????????????}??????????????????i++;??????
  59. ????????}??????????????return?sbuf.toString();??????
  60. ????}??????????/*public?static?void?main(String[]?args)?{?????
  61. ????????String?stest?=?"中文1234?abcd[]()<+>,.~\\";?????????????System.out.println(stest);?????
  62. ????????System.out.println(escape(stest));?????????????System.out.println(unescape(escape(stest)));?????
  63. ????}???*/???}??????


?以上代码做的工作是把通过js获取的字符串转换成16进制的字符串放到url的参数上，传到服务器端再把这个16进制字符串转换为原来的字符串。

读书人网 >JavaScript

热点推荐

触屏版 | 电脑版

读书人网 m.reader8.net