{"id":31079,"date":"2024-01-26T16:41:43","date_gmt":"2023-11-17T09:24:54","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90java%e3%80%91%e7%94%9f%e6%88%90%e4%ba%8c%e7%bb%b4%e7%a0%81\/"},"modified":"2025-08-12T22:13:26","modified_gmt":"2025-08-12T14:13:26","slug":"%e3%80%90java%e3%80%91%e7%94%9f%e6%88%90%e4%ba%8c%e7%bb%b4%e7%a0%81","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90java%e3%80%91%e7%94%9f%e6%88%90%e4%ba%8c%e7%bb%b4%e7%a0%81\/","title":{"rendered":"\u3010Java\u3011\u751f\u6210\u4e8c\u7ef4\u7801"},"content":{"rendered":"

\u25fe\ufe0f \u5982\u4f55\u4f7f\u7528Java\u751f\u6210QRCode<\/h2>\n
\u30fb\u4f7f\u7528\u5e93
\n\u3000\u3000ZXing
\n\u3000\u3000\u3000\u221f\u3000core-3.5.1.jar
\n\u3000\u3000\u3000\u221f\u3000javase-3.5.1.jar<\/div>\n
\u203b\u5bf9\u4e8e\u672c\u6b21QR Code\u751f\u6210\u7684\u8be6\u7ec6\u5904\u7406\u65b9\u6cd5\u4e0d\u505a\u8be6\u8ff0\u3002
\n\u6211\u8ba4\u4e3a\u8fd9\u662f\u4e00\u79cd\u5e38\u89c4\u505a\u6cd5\uff0c\u6240\u4ee5\u5728\u4f7f\u7528\u4e2d\u3002
\n\u542c\u8bf4\u6709\u591a\u4e2a\u9009\u9879\u53ef\u4f9b\u9009\u62e9\uff0c\u6839\u636e\u9700\u8981\u8fdb\u884c\u6dfb\u52a0\u3002<\/div>\n
\tpublic<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[]<\/span> args<\/span>)<\/span> {<\/span>\r\n\t\t\/\/ QR\u8aad\u307f\u53d6\u308a\u6642\u306b\u8868\u793a\u3059\u308b\u6587\u5b57\u5217<\/span>\r\n\t\tString<\/span> content<\/span> =<\/span> \"https:\/\/qiita.com\/devdia\"<\/span>;<\/span>\r\n\t\t\/\/ \u753b\u50cf\u30b5\u30a4\u30ba(\u30d4\u30af\u30bb\u30eb)<\/span>\r\n\t\tint<\/span> width<\/span> =<\/span> 200<\/span>;<\/span>\r\n\t\tint<\/span> height<\/span> =<\/span> 200<\/span>;<\/span>\r\n\t\t\r\n\t\ttry<\/span> {<\/span>\r\n\t\t\tQRCodeWriter<\/span> qw<\/span> =<\/span> new<\/span> QRCodeWriter<\/span>();<\/span>\r\n\t\t\tBitMatrix<\/span> bm<\/span> =<\/span> qw<\/span>.<\/span>encode<\/span>(<\/span>content<\/span>,<\/span> BarcodeFormat<\/span>.<\/span>QR_CODE<\/span>,<\/span> width<\/span>,<\/span> height<\/span>);<\/span>\r\n\t\t\tBufferedImage<\/span> img<\/span> =<\/span> MatrixToImageWriter<\/span>.<\/span>toBufferedImage<\/span>(<\/span>bm<\/span>);<\/span>\r\n\t\t\tImageIO<\/span>.<\/span>write<\/span>(<\/span>img<\/span>,<\/span> \"png\"<\/span>,<\/span> new<\/span> File<\/span>(<\/span>\"src\/images\/outputQRCode.png\"<\/span>));<\/span>\r\n\t\t}<\/span> catch<\/span> (<\/span>WriterException<\/span> |<\/span> IOException<\/span> e<\/span>)<\/span> {<\/span>\r\n\t\t\tSystem<\/span>.<\/span>err<\/span>.<\/span>println<\/span>(<\/span>\"QRCode\u751f\u6210\u6642\u306b\u4f8b\u5916\u767a\u751f\"<\/span> +<\/span> e<\/span>);<\/span>\r\n\t\t}<\/span>\r\n\t\tSystem<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"QRCode\u306e\u751f\u6210\u306b\u6210\u529f\"<\/span>);<\/span>\r\n\t}<\/span>\r\n\r\n<\/code><\/pre>\n
\n<\/hr>\n
\u25fe\ufe0f \u65e5\u672c\u8bed\u652f\u6301\u7248\u672c<\/h3>\n
\u7531\u4e8e\u9ed8\u8ba4\u7684\u5b57\u7b26\u96c6\u662f”ISO-8859-1″\uff0c\u5f53\u4f7f\u7528\u65e5\u8bed\u8fdb\u884c\u5b57\u7b26\u4e32\u6307\u5b9a\u65f6\u4f1a\u51fa\u73b0\u4e71\u7801\u3002\u901a\u8fc7\u4f7f\u7528EncodeHintType\u6765\u6307\u5b9a\u5b57\u7b26\u96c6\uff0c\u5373\u53ef\u5728\u65e5\u8bed\u4e2d\u4e0d\u518d\u51fa\u73b0\u4e71\u7801\uff0c\u751f\u6210QRCode\u3002<\/p>\n
public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[]<\/span> args<\/span>)<\/span> {<\/span>\r\n    \/\/ QR\u8aad\u307f\u53d6\u308a\u6642\u306b\u8868\u793a\u3059\u308b\u6587\u5b57\u5217<\/span>\r\n    String<\/span> content<\/span> =<\/span> \"\u65e5\u672c\u8a9e\u30c7\u30fc\u30bf\"<\/span>;<\/span>\r\n    \/\/ \u753b\u50cf\u30b5\u30a4\u30ba(\u30d4\u30af\u30bb\u30eb)<\/span>\r\n    int<\/span> width<\/span> =<\/span> 200<\/span>;<\/span>\r\n    int<\/span> height<\/span> =<\/span> 200<\/span>;<\/span>\r\n    \/\/ HashMap\u3088\u308a\u3001EnumMap\u3092\u4f7f\u3046\u3053\u3068\u3067\u5b9f\u884c\u52b9\u7387\u304c\u4e0a\u304c\u308b\u3089\u3057\u3044...<\/span>\r\n    Map<\/span><<\/span>EncodeHintType<\/span>,<\/span> Object<\/span>><\/span> hints<\/span> =<\/span> new<\/span> EnumMap<\/span><>(<\/span>EncodeHintType<\/span>.<\/span>class<\/span>);<\/span>\r\n    \/\/ Charaset\u3092\"UTF-8\"\u306b\u6307\u5b9a<\/span>\r\n    hints<\/span>.<\/span>put<\/span>(<\/span>EncodeHintType<\/span>.<\/span>CHARACTER_SET<\/span>,<\/span> StandardCharsets<\/span>.<\/span>UTF_8<\/span>);<\/span>\r\n    \r\n    try<\/span> {<\/span>\r\n        QRCodeWriter<\/span> qw<\/span> =<\/span> new<\/span> QRCodeWriter<\/span>();<\/span>\r\n        \/\/ \u5f15\u6570\u306bQRCode\u751f\u6210\u6642\u306e\u30d2\u30f3\u30c8\u3068\u306a\u308b\u60c5\u5831\u3092\u6e21\u3059<\/span>\r\n        BitMatrix<\/span> bm<\/span> =<\/span> qw<\/span>.<\/span>encode<\/span>(<\/span>content<\/span>,<\/span> BarcodeFormat<\/span>.<\/span>QR_CODE<\/span>,<\/span> width<\/span>,<\/span> height<\/span>,<\/span>hints<\/span>);<\/span>\r\n        BufferedImage<\/span> img<\/span> =<\/span> MatrixToImageWriter<\/span>.<\/span>toBufferedImage<\/span>(<\/span>bm<\/span>);<\/span>\r\n        ImageIO<\/span>.<\/span>write<\/span>(<\/span>img<\/span>,<\/span> \"png\"<\/span>,<\/span> new<\/span> File<\/span>(<\/span>\"src\/images\/outputQRCode.png\"<\/span>));<\/span>\r\n    }<\/span> catch<\/span> (<\/span>WriterException<\/span> |<\/span> IOException<\/span> e<\/span>)<\/span> {<\/span>\r\n        System<\/span>.<\/span>err<\/span>.<\/span>println<\/span>(<\/span>\"QRCode\u751f\u6210\u6642\u306b\u4f8b\u5916\u767a\u751f\"<\/span> +<\/span> e<\/span>);<\/span>\r\n    }<\/span>\r\n    System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"QRCode\u306e\u751f\u6210\u306b\u6210\u529f\"<\/span>);<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\n<\/hr>\n
\u25fe\ufe0f \u53c2\u8003\u8d44\u6599<\/h3>\n
<\/a><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
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