地址栏传递中文参数乱码在js里用escape转码
乱码，乱码，头大，烦，话说设置Tomcat后可以解决，但有的时候不管用了，这时，我们可以考虑转码方式不直接传中文，在js里用escape转码，记得需要用两次，如：
var str=escape(\"这是中文参数\");
str=escape(str);
xxx.do?name=str;
在后台通过一个类的方法再转回来：
Escape.unescape(request.getParameter(\"name\"));
Escape类如下：
package com.laneasy.hy.util;
/**
* js编转码java实现类.
*
* @author yangjinde
*/
public class Escape {
/** The Constant hex. */
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\" };
/** The Constant val. */
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 };
/**
* Escape.
*
* @param s
* the s
*
* @return the string
*/
/**
* 编码
*
* @param s
* @return
*/
public static String escape(String s) {
if (s != null) {
StringBuffer sbuf = new StringBuffer();
int len = s.length();
for (int i = 0; i < len; i++) {
int ch = s.charAt(i);
if (\'A\' <= ch && ch <= \'Z\') {
sbuf.append((char) ch);
} else if (\'a\' <= ch && ch <= \'z\') {
sbuf.append((char) ch);
} else if (\'0\' <= ch && ch <= \'9\') {
sbuf.append((char) ch);
} else if (ch == \'-\' || ch == \'_\' || ch == \'.\' || ch == \'!\'
|| ch == \'~\' || ch == \'*\' || ch == \'\\\'\' || ch == \'(\'
|| ch == \')\') {
sbuf.append((char) ch);
} else if (ch <= 0x007F) {
sbuf.append(\'%\');
sbuf.append(hex[ch]);
} else {
sbuf.append(\'%\');
sbuf.append(\'u\');
sbuf.append(hex[(ch >>> 8)]);
sbuf.append(hex[(0x00FF & ch)]);
}
}
return sbuf.toString();
}
return null;
}
/**
* Unescape.
*
* @param s
* the s
*
* @return the string
*/
/**
* 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
*
* @param s
* @return
*/
public static String unescape(String s) {
if (s != null) {
StringBuffer sbuf = new StringBuffer();
int i = 0;
int len = s.length();
while (i < len) {
int ch = s.charAt(i);
if (\'A\' <= ch && ch <= \'Z\') {
sbuf.append((char) ch);
} else if (\'a\' <= ch && ch <= \'z\') {
sbuf.append((char) ch);
} else if (\'0\' <= ch && ch <= \'9\') {
sbuf.append((char) ch);
} else if (ch == \'-\' || ch == \'_\' || ch == \'.\' || ch == \'!\'
|| ch == \'~\' || ch == \'*\' || ch == \'\\\'\' || ch == \'(\'
|| ch == \')\') {
sbuf.append((char) ch);
} else if (ch == \'%\') {
int cint = 0;
if (\'u\' != s.charAt(i + 1)) {
cint = (cint << 4) | val[s.charAt(i + 1)];
cint = (cint << 4) | val[s.charAt(i + 2)];
i += 2;
} else {
cint = (cint << 4) | val[s.charAt(i + 2)];
cint = (cint << 4) | val[s.charAt(i + 3)];
cint = (cint << 4) | val[s.charAt(i + 4)];
cint = (cint << 4) | val[s.charAt(i + 5)];
i += 5;
}
sbuf.append((char) cint);
} else {
sbuf.append((char) ch);
}
i++;
}
return sbuf.toString();
}
return null;
}
}
var str=escape(\"这是中文参数\");
str=escape(str);
xxx.do?name=str;
在后台通过一个类的方法再转回来：
Escape.unescape(request.getParameter(\"name\"));
Escape类如下：
复制代码 代码如下:
package com.laneasy.hy.util;
/**
* js编转码java实现类.
*
* @author yangjinde
*/
public class Escape {
/** The Constant hex. */
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\" };
/** The Constant val. */
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 };
/**
* Escape.
*
* @param s
* the s
*
* @return the string
*/
/**
* 编码
*
* @param s
* @return
*/
public static String escape(String s) {
if (s != null) {
StringBuffer sbuf = new StringBuffer();
int len = s.length();
for (int i = 0; i < len; i++) {
int ch = s.charAt(i);
if (\'A\' <= ch && ch <= \'Z\') {
sbuf.append((char) ch);
} else if (\'a\' <= ch && ch <= \'z\') {
sbuf.append((char) ch);
} else if (\'0\' <= ch && ch <= \'9\') {
sbuf.append((char) ch);
} else if (ch == \'-\' || ch == \'_\' || ch == \'.\' || ch == \'!\'
|| ch == \'~\' || ch == \'*\' || ch == \'\\\'\' || ch == \'(\'
|| ch == \')\') {
sbuf.append((char) ch);
} else if (ch <= 0x007F) {
sbuf.append(\'%\');
sbuf.append(hex[ch]);
} else {
sbuf.append(\'%\');
sbuf.append(\'u\');
sbuf.append(hex[(ch >>> 8)]);
sbuf.append(hex[(0x00FF & ch)]);
}
}
return sbuf.toString();
}
return null;
}
/**
* Unescape.
*
* @param s
* the s
*
* @return the string
*/
/**
* 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
*
* @param s
* @return
*/
public static String unescape(String s) {
if (s != null) {
StringBuffer sbuf = new StringBuffer();
int i = 0;
int len = s.length();
while (i < len) {
int ch = s.charAt(i);
if (\'A\' <= ch && ch <= \'Z\') {
sbuf.append((char) ch);
} else if (\'a\' <= ch && ch <= \'z\') {
sbuf.append((char) ch);
} else if (\'0\' <= ch && ch <= \'9\') {
sbuf.append((char) ch);
} else if (ch == \'-\' || ch == \'_\' || ch == \'.\' || ch == \'!\'
|| ch == \'~\' || ch == \'*\' || ch == \'\\\'\' || ch == \'(\'
|| ch == \')\') {
sbuf.append((char) ch);
} else if (ch == \'%\') {
int cint = 0;
if (\'u\' != s.charAt(i + 1)) {
cint = (cint << 4) | val[s.charAt(i + 1)];
cint = (cint << 4) | val[s.charAt(i + 2)];
i += 2;
} else {
cint = (cint << 4) | val[s.charAt(i + 2)];
cint = (cint << 4) | val[s.charAt(i + 3)];
cint = (cint << 4) | val[s.charAt(i + 4)];
cint = (cint << 4) | val[s.charAt(i + 5)];
i += 5;
}
sbuf.append((char) cint);
} else {
sbuf.append((char) ch);
}
i++;
}
return sbuf.toString();
}
return null;
}
}
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