\u4f86\u6e90\uff1ahttp:\/\/campuss.blog.sohu.com\/74210127.html<\/p>\n
Unicode\u3001UTF-8 \u548c ISO-8859-1\u5230\u5e95\u6709\u4ec0\u9ebc\u5340\u5225<\/p>\n
\u672c\u6587\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u5e7e\u500b\u65b9\u9762\uff1a\u7de8\u78bc\u57fa\u672c\u77e5\u8b58\uff0cjava\uff0c\u7cfb\u7d71\u8edf\u4ef6\uff0curl\uff0c\u5de5\u5177\u8edf\u4ef6\u7b49\u3002<\/p>\n
\u5728\u4e0b\u9762\u7684\u63cf\u8ff0\u4e2d\uff0c\u5c07\u4ee5”\u4e2d\u6587”\u5169\u500b\u5b57\u7232\u4f8b\uff0c\u7d93\u67e5\u8868\u53ef\u4ee5\u77e5\u9053\u5176GB2312\u7de8\u78bc\u662f”d6d0 cec4″\uff0cUnicode\u7de8\u78bc\u7232”4e2d 6587″\uff0cUTF\u7de8\u78bc\u5c31\u662f”e4b8ad e69687″\u3002\u6ce8\u610f\uff0c\u9019\u5169\u500b\u5b57\u6c92\u6709ISO-8859-1\u7de8\u78bc\uff0c\u4f46\u53ef\u4ee5\u7528ISO-8859-1\u7de8\u78bc\u4f86”\u8868\u793a”\u3002<\/p>\n
2. \u7de8\u78bc\u57fa\u672c\u77e5\u8b58<\/p>\n
\u6700\u65e9\u7684\u7de8\u78bc\u662fISO-8859-1\uff0c\u548cASCII\u7de8\u78bc\u76f8\u4f3c\u3002\u4f46\u7232\u4e86\u65b9\u4fbf\u8868\u793a\u5404\u7a2e\u5404\u6a23\u7684\u8a9e\u8a00\uff0c\u9010\u6f38\u51fa\u73fe\u4e86\u5f88\u591a\u6a19\u6e96\u7de8\u78bc\uff0c\u91cd\u8981\u7684\u6709\u5982\u4e0b\u5e7e\u500b\u3002<\/p>\n
2.1. ISO-8859-1<\/p>\n
\u5c6c\u65bc\u55ae\u5b57\u7bc0\u7de8\u78bc\uff0c\u6700\u591a\u80fd\u8868\u793a\u7684\u5b57\u7b26\u7bc4\u570d\u662f0-255\uff0c\u61c9\u7528\u65bc\u82f1\u6587\u7cfb\u5217\u3002\u6bd4\u5982\uff0c\u5b57\u6bcda\u7684\u7de8\u78bc\u72320x61=97\u3002<\/p>\n
\u5f88\u660e\u986f\uff0cISO-8859-1\u7de8\u78bc\u8868\u793a\u7684\u5b57\u7b26\u7bc4\u570d\u5f88\u7a84\uff0c\u7121\u6cd5\u8868\u793a\u4e2d\u6587\u5b57\u7b26\u3002\u4f46\u662f\uff0c\u7531\u65bc\u662f\u55ae\u5b57\u7bc0\u7de8\u78bc\uff0c\u548c\u8a08\u7b97\u6a5f\u6700\u57fa\u790e\u7684\u8868\u793a\u55ae\u4f4d\u4e00\u81f4\uff0c\u6240\u4ee5\u5f88\u591a\u6642\u5019\uff0c\u4ecd\u820a\u4f7f\u7528ISO-8859-1\u7de8\u78bc\u4f86\u8868\u793a\u3002\u800c\u4e14\u5728\u5f88\u591a\u5354\u8b70\u4e0a\uff0c\u9ed8\u8a8d\u4f7f\u7528\u8a72\u7de8\u78bc\u3002\u6bd4\u5982\uff0c\u96d6\u7136”\u4e2d\u6587”\u5169\u500b\u5b57\u4e0d\u5b58\u5728ISO-8859-1\u7de8\u78bc\uff0c\u4ee5gb2312\u7de8\u78bc\u7232\u4f8b\uff0c\u61c9\u8a72\u662f”d6d0 cec4″\u5169\u500b\u5b57\u7b26\uff0c\u4f7f\u7528ISO-8859-1\u7de8\u78bc\u7684\u6642\u5019\u5247\u5c07\u5b83\u62c6\u958b\u72324\u500b\u5b57\u7bc0\u4f86\u8868\u793a\uff1a”d6 d0 ce c4″\uff08\u4e8b\u5be6\u4e0a\uff0c\u5728\u9032\u884c\u5b58\u5132\u7684\u6642\u5019\uff0c\u4e5f\u662f\u4ee5\u5b57\u7bc0\u7232\u55ae\u4f4d\u8655\u7406\u7684\uff09\u3002\u800c\u5982\u679c\u662fUTF\u7de8\u78bc\uff0c\u5247\u662f6\u500b\u5b57\u7bc0”e4 b8 ad e6 96 87″\u3002\u5f88\u660e\u986f\uff0c\u9019\u7a2e\u8868\u793a\u65b9\u6cd5\u9084\u9700\u8981\u4ee5\u53e6\u4e00\u7a2e\u7de8\u78bc\u7232\u57fa\u790e\u3002<\/p>\n
2.2. GB2312\/GBK<\/p>\n
\u9019\u5c31\u662f\u6f22\u5b50\u7684\u570b\u6a19\u78bc\uff0c\u5c08\u9580\u7528\u4f86\u8868\u793a\u6f22\u5b57\uff0c\u662f\u96d9\u5b57\u7bc0\u7de8\u78bc\uff0c\u800c\u82f1\u6587\u5b57\u6bcd\u548cISO-8859-1\u4e00\u81f4\uff08\u517c\u5bb9ISO-8859-1\u7de8\u78bc\uff09\u3002\u5176\u4e2dgbk\u7de8\u78bc\u80fd\u5920\u7528\u4f86\u540c\u6642\u8868\u793a\u7e41\u9ad4\u5b57\u548c\u7c21\u9ad4\u5b57\uff0c\u800cgb2312\u53ea\u80fd\u8868\u793a\u7c21\u9ad4\u5b57\uff0cgbk\u662f\u517c\u5bb9gb2312\u7de8\u78bc\u7684\u3002<\/p>\n
2.3. unicode<\/p>\n
\u9019\u662f\u6700\u7d71\u4e00\u7684\u7de8\u78bc\uff0c\u53ef\u4ee5\u7528\u4f86\u8868\u793a\u6240\u6709\u8a9e\u8a00\u7684\u5b57\u7b26\uff0c\u800c\u4e14\u662f\u5b9a\u9577\u96d9\u5b57\u7bc0\uff08\u4e5f\u6709\u56db\u5b57\u7bc0\u7684\uff09\u7de8\u78bc\uff0c\u5305\u62ec\u82f1\u6587\u5b57\u6bcd\u5728\u5167\u3002\u6240\u4ee5\u53ef\u4ee5\u8aaa\u5b83\u662f\u4e0d\u517c\u5bb9ISO-8859-1\u7de8\u78bc\u7684\uff0c\u4e5f\u4e0d\u517c\u5bb9\u4efb\u4f55\u7de8\u78bc\u3002\u4e0d\u904e\uff0c\u76f8\u5c0d\u65bcISO-8859-1\u7de8\u78bc\u4f86\u8aaa\uff0cuniocode\u7de8\u78bc\u53ea\u662f\u5728\u524d\u9762\u589e\u52a0\u4e86\u4e00\u500b0\u5b57\u7bc0\uff0c\u6bd4\u5982\u5b57\u6bcda\u7232”00 61″\u3002<\/p>\n
\u9700\u8981\u8aaa\u660e\u7684\u662f\uff0c\u5b9a\u9577\u7de8\u78bc\u4fbf\u65bc\u8a08\u7b97\u6a5f\u8655\u7406\uff08\u6ce8\u610fGB2312\/GBK\u4e0d\u662f\u5b9a\u9577\u7de8\u78bc\uff09\uff0c\u800cunicode\u53c8\u53ef\u4ee5\u7528\u4f86\u8868\u793a\u6240\u6709\u5b57\u7b26\uff0c\u6240\u4ee5\u5728\u5f88\u591a\u8edf\u4ef6\u5167\u90e8\u662f\u4f7f\u7528unicode\u7de8\u78bc\u4f86\u8655\u7406\u7684\uff0c\u6bd4\u5982java\u3002<\/p>\n
2.4. UTF<\/p>\n
\u8003\u616e\u5230unicode\u7de8\u78bc\u4e0d\u517c\u5bb9ISO-8859-1\u7de8\u78bc\uff0c\u800c\u4e14\u5bb9\u6613\u4f54\u7528\u66f4\u591a\u7684\u7a7a\u9593\uff1a\u56e0\u7232\u5c0d\u65bc\u82f1\u6587\u5b57\u6bcd\uff0cunicode\u4e5f\u9700\u8981\u5169\u500b\u5b57\u7bc0\u4f86\u8868\u793a\u3002\u6240\u4ee5unicode\u4e0d\u4fbf\u65bc\u50b3\u8f38\u548c\u5b58\u5132\u3002\u56e0\u6b64\u800c\u7522\u751f\u4e86utf\u7de8\u78bc\uff0cutf\u7de8\u78bc\u517c\u5bb9ISO-8859-1\u7de8\u78bc\uff0c\u540c\u6642\u4e5f\u53ef\u4ee5\u7528\u4f86\u8868\u793a\u6240\u6709\u8a9e\u8a00\u7684\u5b57\u7b26\uff0c\u4e0d\u904e\uff0cutf\u7de8\u78bc\u662f\u4e0d\u5b9a\u9577\u7de8\u78bc\uff0c\u6bcf\u4e00\u500b\u5b57\u7b26\u7684\u9577\u5ea6\u5f9e1-6\u500b\u5b57\u7bc0\u4e0d\u7b49\u3002\u53e6\u5916\uff0cutf\u7de8\u78bc\u81ea\u5e36\u7c21\u55ae\u7684\u6821\u9a57\u529f\u80fd\u3002\u4e00\u822c\u4f86\u8b1b\uff0c\u82f1\u6587\u5b57\u6bcd\u90fd\u662f\u7528\u4e00\u500b\u5b57\u7bc0\u8868\u793a\uff0c\u800c\u6f22\u5b57\u4f7f\u7528\u4e09\u500b\u5b57\u7bc0\u3002<\/p>\n
\u6ce8\u610f\uff0c\u96d6\u7136\u8aaautf\u662f\u7232\u4e86\u4f7f\u7528\u66f4\u5c11\u7684\u7a7a\u9593\u800c\u4f7f\u7528\u7684\uff0c\u4f46\u90a3\u53ea\u662f\u76f8\u5c0d\u65bcunicode\u7de8\u78bc\u4f86\u8aaa\uff0c\u5982\u679c\u5df2\u7d93\u77e5\u9053\u662f\u6f22\u5b57\uff0c\u5247\u4f7f\u7528GB2312\/GBK\u7121\u7591\u662f\u6700\u7bc0\u7701\u7684\u3002\u4e0d\u904e\u53e6\u4e00\u65b9\u9762\uff0c\u503c\u5f97\u8aaa\u660e\u7684\u662f\uff0c\u96d6\u7136utf\u7de8\u78bc\u5c0d\u6f22\u5b57\u4f7f\u75283\u500b\u5b57\u7bc0\uff0c\u4f46\u5373\u4f7f\u5c0d\u65bc\u6f22\u5b57\u7db2\u9801\uff0cutf\u7de8\u78bc\u4e5f\u6703\u6bd4unicode\u7de8\u78bc\u7bc0\u7701\uff0c\u56e0\u7232\u7db2\u9801\u4e2d\u5305\u542b\u4e86\u5f88\u591a\u7684\u82f1\u6587\u5b57\u7b26\u3002<\/p>\n
3. java\u5c0d\u5b57\u7b26\u7684\u8655\u7406<\/p>\n
\u5728java\u61c9\u7528\u8edf\u4ef6\u4e2d\uff0c\u6703\u6709\u591a\u8655\u6d89\u53ca\u5230\u5b57\u7b26\u96c6\u7de8\u78bc\uff0c\u6709\u4e9b\u5730\u65b9\u9700\u8981\u9032\u884c\u6b63\u78ba\u7684\u8a2d\u7f6e\uff0c\u6709\u4e9b\u5730\u65b9\u9700\u8981\u9032\u884c\u4e00\u5b9a\u7a0b\u5ea6\u7684\u8655\u7406\u3002<\/p>\n
3.1. getBytes(charset)<\/p>\n
\u9019\u662fjava\u5b57\u7b26\u4e32\u8655\u7406\u7684\u4e00\u500b\u6a19\u6e96\u51fd\u6578\uff0c\u5176\u4f5c\u7528\u662f\u5c07\u5b57\u7b26\u4e32\u6240\u8868\u793a\u7684\u5b57\u7b26\u6309\u7167charset\u7de8\u78bc\uff0c\u4e26\u4ee5\u5b57\u7bc0\u65b9\u5f0f\u8868\u793a\u3002\u6ce8\u610f\u5b57\u7b26\u4e32\u5728java\u5167\u5b58\u4e2d\u7e3d\u662f\u6309unicode\u7de8\u78bc\u5b58\u5132\u7684\u3002\u6bd4\u5982”\u4e2d\u6587”\uff0c\u6b63\u5e38\u60c5\u6cc1\u4e0b\uff08\u5373\u6c92\u6709\u932f\u8aa4\u7684\u6642\u5019\uff09\u5b58\u5132\u7232”4e2d 6587″\uff0c\u5982\u679ccharset\u7232”gbk”\uff0c\u5247\u88ab\u7de8\u78bc\u7232”d6d0 cec4″\uff0c\u7136\u5f8c\u8fd4\u56de\u5b57\u7bc0”d6 d0 ce c4″\u3002\u5982\u679ccharset\u7232”utf8″\u5247\u6700\u5f8c\u662f”e4 b8 ad e6 96 87″\u3002\u5982\u679c\u662f”ISO-8859-1″\uff0c\u5247\u7531\u65bc\u7121\u6cd5\u7de8\u78bc\uff0c\u6700\u5f8c\u8fd4\u56de “3f 3f”\uff08\u5169\u500b\u554f\u865f\uff09\u3002<\/p>\n
3.2. new String(charset)<\/p>\n
\u9019\u662fjava\u5b57\u7b26\u4e32\u8655\u7406\u7684\u53e6\u4e00\u500b\u6a19\u6e96\u51fd\u6578\uff0c\u548c\u4e0a\u4e00\u500b\u51fd\u6578\u7684\u4f5c\u7528\u76f8\u53cd\uff0c\u5c07\u5b57\u7bc0\u6578\u7d44\u6309\u7167charset\u7de8\u78bc\u9032\u884c\u7d44\u5408\u8b58\u5225\uff0c\u6700\u5f8c\u8f49\u63db\u7232unicode\u5b58\u5132\u3002\u53c3\u8003\u4e0a\u8ff0getBytes\u7684\u4f8b\u5b50\uff0c”gbk” \u548c”utf8″\u90fd\u53ef\u4ee5\u5f97\u51fa\u6b63\u78ba\u7684\u7d50\u679c”4e2d 6587″\uff0c\u4f46ISO-8859-1\u6700\u5f8c\u8b8a\u6210\u4e86”003f 003f”\uff08\u5169\u500b\u554f\u865f\uff09\u3002<\/p>\n
\u56e0\u7232utf8\u53ef\u4ee5\u7528\u4f86\u8868\u793a\/\u7de8\u78bc\u6240\u6709\u5b57\u7b26\uff0c\u6240\u4ee5new String( str.getBytes( “utf8” ), “utf8” ) === str\uff0c\u5373\u5b8c\u5168\u53ef\u9006\u3002<\/p>\n
3.3. setCharacterEncoding()<\/p>\n
\u8a72\u51fd\u6578\u7528\u4f86\u8a2d\u7f6ehttp\u8acb\u6c42\u6216\u8005\u76f8\u61c9\u7684\u7de8\u78bc\u3002<\/p>\n
\u5c0d\u65bcrequest\uff0c\u662f\u6307\u63d0\u4ea4\u5167\u5bb9\u7684\u7de8\u78bc\uff0c\u6307\u5b9a\u5f8c\u53ef\u4ee5\u901a\u904egetParameter()\u5247\u76f4\u63a5\u7372\u5f97\u6b63\u78ba\u7684\u5b57\u7b26\u4e32\uff0c\u5982\u679c\u4e0d\u6307\u5b9a\uff0c\u5247\u9ed8\u8a8d\u4f7f\u7528ISO-8859-1\u7de8\u78bc\uff0c\u9700\u8981\u9032\u4e00\u6b65\u8655\u7406\u3002\u53c3\u898b\u4e0b\u8ff0”\u8868\u55ae\u8f38\u5165”\u3002\u503c\u5f97\u6ce8\u610f\u7684\u662f\u5728\u57f7\u884csetCharacterEncoding()\u4e4b\u524d\uff0c\u4e0d\u80fd\u57f7\u884c\u4efb\u4f55getParameter()\u3002java doc\u4e0a\u8aaa\u660e\uff1aThis method must be called prior to reading request parameters or reading input using getReader()\u3002\u800c\u4e14\uff0c\u8a72\u6307\u5b9a\u53ea\u5c0dPOST\u65b9\u6cd5\u6709\u6548\uff0c\u5c0dGET\u65b9\u6cd5\u7121\u6548\u3002\u5206\u6790\u539f\u56e0\uff0c\u61c9\u8a72\u662f\u5728\u57f7\u884c\u7b2c\u4e00\u500bgetParameter()\u7684\u6642\u5019\uff0cjava\u5c07\u6703\u6309\u7167\u7de8\u78bc\u5206\u6790\u6240\u6709\u7684\u63d0\u4ea4\u5167\u5bb9\uff0c\u800c\u5f8c\u7e8c\u7684getParameter()\u4e0d\u518d\u9032\u884c\u5206\u6790\uff0c\u6240\u4ee5setCharacterEncoding()\u7121\u6548\u3002\u800c\u5c0d\u65bcGET\u65b9\u6cd5\u63d0\u4ea4\u8868\u55ae\u662f\uff0c\u63d0\u4ea4\u7684\u5167\u5bb9\u5728URL\u4e2d\uff0c\u4e00\u958b\u59cb\u5c31\u5df2\u7d93\u6309\u7167\u7de8\u78bc\u5206\u6790\u6240\u6709\u7684\u63d0\u4ea4\u5167\u5bb9\uff0csetCharacterEncoding()\u81ea\u7136\u5c31\u7121\u6548\u3002<\/p>\n
\u5c0d\u65bcresponse\uff0c\u5247\u662f\u6307\u5b9a\u8f38\u51fa\u5167\u5bb9\u7684\u7de8\u78bc\uff0c\u540c\u6642\uff0c\u8a72\u8a2d\u7f6e\u6703\u50b3\u905e\u7d66\u700f\u89bd\u5668\uff0c\u544a\u8a34\u700f\u89bd\u5668\u8f38\u51fa\u5167\u5bb9\u6240\u63a1\u7528\u7684\u7de8\u78bc\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4f86\u6e90\uff1ahttp:\/\/campuss.blog.sohu.com\/74210127.html Unicode\u3001UTF-8 \u548c ISO-8859-1\u5230\u5e95\u6709\u4ec0\u9ebc\u5340\u5225 \u672c\u6587\u4e3b\u8981\u5305\u62ec\u4ee5\u4e0b\u5e7e\u500b\u65b9\u9762\uff1a\u7de8\u78bc\u57fa\u672c\u77e5\u8b58\uff0cjava\uff0c\u7cfb\u7d71\u8edf\u4ef6\uff0curl\uff0c\u5de5\u5177\u8edf\u4ef6\u7b49\u3002 \u5728\u4e0b\u9762\u7684\u63cf\u8ff0\u4e2d\uff0c\u5c07\u4ee5”\u4e2d\u6587”\u5169\u500b\u5b57\u7232\u4f8b\uff0c\u7d93\u67e5\u8868\u53ef\u4ee5\u77e5\u9053\u5176GB2312\u7de8\u78bc\u662f”d6d0 cec4″\uff0cUnicode\u7de8\u78bc\u7232”4e2d 6587″\uff0cUTF\u7de8\u78bc\u5c31\u662f”e4b8ad e69687″\u3002\u6ce8\u610f\uff0c\u9019\u5169\u500b\u5b57\u6c92\u6709ISO-8859-1\u7de8\u78bc\uff0c\u4f46\u53ef\u4ee5\u7528ISO-8859-1\u7de8\u78bc\u4f86”\u8868\u793a”\u3002 2. \u7de8\u78bc\u57fa\u672c\u77e5\u8b58 \u6700\u65e9\u7684\u7de8\u78bc\u662fISO-8859-1\uff0c\u548cASCII\u7de8\u78bc\u76f8\u4f3c\u3002\u4f46\u7232\u4e86\u65b9\u4fbf\u8868\u793a\u5404\u7a2e\u5404\u6a23\u7684\u8a9e\u8a00\uff0c\u9010\u6f38\u51fa\u73fe\u4e86\u5f88\u591a\u6a19\u6e96\u7de8\u78bc\uff0c\u91cd\u8981\u7684\u6709\u5982\u4e0b\u5e7e\u500b\u3002 2.1. 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