解决GET请求含有特殊字符（如:*,#,{},[],^,%,(,?,!..等等）

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解决GET请求含有特殊字符（如:*,#,{},[],^,%,(,?,!..等等）

2023-10-25 06:59| 来源: 网络整理| 查看: 265

【问题出现】

今天在帮前端小姐姐调试代码时，发现前端的某个参数出现丢失的情况，丢失的参数怎么也传不到后台，后台还报错了。。。于是乎就开始了调试之路调试后发现传过来的参数中包含 #（）等字符【其中#字符在url出现的时候，后面的参数是不会传到后台的】发现问题的原因，这个问题就已经解决了50%了，哈哈下面就需要解决GET请求含有特殊字符（如:*,#,{},[],^,%,(,?,!..等等）的情况

【情景重现】前端代码： //弹出详情页 layer.open({ type:2, ········ //data.serdar 其中包含一些中文字符 //修改前端代码，进行编码 content: '/view/detailsHtml?' + encodeURI(escape(data.serdar)) end:function(){ ····· } }) 【后端代码】 @RequestMapping(value = "/view/detailsHtml", method = RequestMethod.GET) @ResponseBody public String deltails(String serdar, Model model){ System.out.println(serdar); ··· ··· ··· return "detail.html"; }

输出： 32D132F4!%26%25%23%uFF08132%uFF09

问题解决前端编码，后端解码

采用内部的URLDecoder.decode()方法，结果报一下错误： Illegal hex characters in escape (%) pattern - For input string: “uF” 于是查找适合的解码工具后，修改如下

@RequestMapping(value = "/view/detailsHtml", method = RequestMethod.GET) @ResponseBody public String deltails(String serdar, Model model){ System.out.println("前端编码后："+serdar); //进行解码 System.out.println("后端解码后："+ EscapeToolBox.unescape(escapeStr)); ··· ··· ··· return "detail.html"; }

输出：前端编码后：32D132F4!%26%25%23%uFF08132%uFF09 后端解码后：32D132F4!&%#（132）

完美还原了前端传过来的中文参数至此，完美解决get请求中文字符传参的问题

/** * @description: EscapeToolBox **/ public class EscapeToolBox { /** * 字符编、解码，适合AJAX数据的传递 */ private final static String[] hex = { "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", "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", "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", "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", "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", "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", "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", "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" }; private final static byte[] val = { 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, 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, 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, 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, 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, 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, 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, 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 }; /** * 字符串编码 * 示例： * @param s String * @return String */ public static String escape(String s) { StringBuffer sbuf = new StringBuffer(); int len = s.length(); for (int i = 0; i // 'A'..'Z' : as it was sbuf.append((char) ch); } else if ('a' // '0'..'9' : as it was sbuf.append((char) ch); } else if (ch == '-' || ch == '_' // unreserved : as it was || ch == '.' || ch == '!' || ch == '~' || ch == '*' || ch == '\'' || ch == '(' || ch == ')') { sbuf.append((char) ch); } else if (ch // unicode : map to %uXXXX sbuf.append('%'); sbuf.append('u'); sbuf.append(hex[(ch >>> 8)]); sbuf.append(hex[(0x00FF & ch)]); } } return sbuf.toString(); } /** * 字符串解码说明：本方法保证不论参数s是否经过escape()编码，均能得到正确的“解码”结果 * 示例： * @param s String * @return String */ public static String unescape(String s) { if(StringUtil.isEmpty(s)) return ""; StringBuffer sbuf = new StringBuffer(); int i = 0; int len = s.length(); while (i // 'A'..'Z' : as it was sbuf.append((char) ch); } else if ('a' // '0'..'9' : as it was sbuf.append((char) ch); } else if (ch == '-' || ch == '_' // unreserved : as it was || ch == '.' || ch == '!' || ch == '~' || ch == '*' || ch == '\'' || ch == '(' || ch == ')') { sbuf.append((char) ch); } else if (ch == '%') { int cint = 0; if ('u' != s.charAt(i + 1)) { // %XX : map to ascii(XX) cint = (cint // 对应的字符未经过编码 sbuf.append((char) ch); } i++; } return sbuf.toString(); } public static void main(String[] args) throws Exception{ String str="32D132F4!&%#（132）"; String escapeStr = escape(str); System.out.println("编码后："+escapeStr); System.out.println("解码后："+unescape(escapeStr)); System.out.println("中文直接解码后："+unescape("在哪里")); System.out.println(escape("中国")); System.out.println(unescape("中国")); System.out.println(unescape("%u4E2D%u56FD")); } }

参考：https://blog.csdn.net/luoruixiaohai/article/details/51003214

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解决GET请求含有特殊字符（如:*,#,{},[],^,%,(,?,!..等等）

解决GET请求含有特殊字符（如:*,#,{},[],^,%,(,?,!..等等）

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