{"id":28,"date":"2013-02-26T18:31:40","date_gmt":"2013-02-26T10:31:40","guid":{"rendered":"http:\/\/www.yeetrack.com\/post\/2013-02-26\/java%20md5%E5%8A%A0%E5%AF%86"},"modified":"2013-09-27T22:36:56","modified_gmt":"2013-09-27T14:36:56","slug":"javamd5%e5%8a%a0%e5%af%86","status":"publish","type":"post","link":"https:\/\/www.yeetrack.com\/?p=28","title":{"rendered":"java md5\u52a0\u5bc6"},"content":{"rendered":"

\u5728java\u4e2d\u53ef\u4ee5\u4f7f\u7528java.security.MessageDigest\u7c7b\uff0c\u8fdb\u884cmd5\u52a0\u5bc6<\/p>\n

\u5e38\u7528\u573a\u666f\uff1a
\u4e00\u822c\u7f51\u7ad9\u5b58\u50a8\u7528\u6237\u5bc6\u7801\u65f6\uff0c\u4e0d\u4f1a\u5b58\u50a8\u660e\u6587\u5bc6\u7801\uff0c\u6700\u5c11\u4e5f\u8981\u7ecf\u8fc7\u4e00\u6b21md5\u52a0\u5bc6\u3002<\/p>\n

<\/p>\n

\u672c\u6848\u53ea\u4ecb\u7ecd\u4f7f\u7528java.security.MessageDigest,\u5bf9\u6570\u636e\u8fdb\u884c\u52a0\u5bc6\u64cd\u4f5c\u3002\u8be5\u65b9\u6cd5\u662f\u5355\u5411\u7684\u52a0\u5bc6\u7b97\u6cd5<\/p>\n

\u8be6\u7ec6\u4ee3\u7801\u5982\u4e0b\u6240\u8868\u793a\uff1a<\/p>\n

\/**\u5bf9\u8bed\u53e5\u8fdb\u884c\u5355\u5411\u52a0\u5bc6 \n        * <\u529f\u80fd\u8be6\u7ec6\u63cf\u8ff0> \n        * @param message   \u9700\u8981\u52a0\u5bc6\u7684\u4fe1\u606f \n        * @return \n        * @throws NoSuchAlgorithmException \n        * @throws IOException [\u53c2\u6570\u8bf4\u660e] \n        *  \n        * @return byte[] [\u8fd4\u56de\u7c7b\u578b\u8bf4\u660e] \n        * @exception throws [\u8fdd\u4f8b\u7c7b\u578b] [\u8fdd\u4f8b\u8bf4\u660e] \n        * @see [\u7c7b\u3001\u7c7b#\u65b9\u6cd5\u3001\u7c7b#\u6210\u5458] \n        *\/\n       public byte[] encrypt(String message)  \n           throws NoSuchAlgorithmException, IOException  \n       {  \n                                \n           \/\/ \u83b7\u53d6MessageDigest\u5b9e\u4f8b  \n           MessageDigest encrypt = MessageDigest.getInstance("md5");  \n                                \n           \/\/ \u6dfb\u52a0\u9700\u8981\u52a0\u5bc6\u7684\u4fe1\u606f  \n           encrypt.update(message.getBytes());  \n                                \n           \/\/ \u5bf9\u4fe1\u606f\u4fe1\u606f\u52a0\u5bc6  \n           byte[] encryptMD5 = encrypt.digest();  \n                                \n           \/\/\u83b7\u5f97\u52a0\u5bc6\u7b97\u6cd5  \n           System.out.println(encrypt.getAlgorithm());  \n                                \n           \/\/\u5f97\u5230\u52a0\u5bc6\u7b97\u6cd5\u7684\u957f\u5ea6  \n           System.out.println(encrypt.getDigestLength());  \n                                \n           return encryptMD5;  \n                               \n                    <\/pre>\n
\/**\n     * \u5c0616\u4f4dbyte[] \u8f6c\u6362\u4e3a32\u4f4dString\n     *\n     * @param buffer\n     * @return\n     *\/\n    private String toHex(byte buffer[]) {\n        StringBuffer sb = new StringBuffer(buffer.length * 2);\n        for (int i = 0; i < buffer.length; i++) {\n            sb.append(Character.forDigit((buffer[i] & 240) >> 4, 16));\n            sb.append(Character.forDigit(buffer[i] & 15, 16));\n        }\n             \n        return sb.toString();\n    }<\/pre>\n
public static void main(String[] args)  \n           throws NoSuchAlgorithmException, IOException  \n       {  \n           SecurityTest t = new SecurityTest();  \n           \/\/\u5f97\u5230\u52a0\u5bc6\u6570\u7ec4  \n           byte[] data = t.encrypt("\u6211\u7684\u6d4b\u8bd5\u4fe1\u606f!");  \n           \/\/\u8f6c\u4e3a32\u4f4d16\u8fdb\u5236\u5b57\u7b26\u4e32  \n           String baseResult =       SecurityTest.toHex(data);              \n           System.out.println("baseResult"+baseResult);  \n                       \n        <\/pre>\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5728java\u4e2d\u53ef\u4ee5\u4f7f\u7528java.security.MessageDigest\u7c7b\uff0c\u8fdb\u884cmd5\u52a0\u5bc6 \u5e38\u7528\u573a\u666f\uff1a\u4e00\u822c\u7f51\u7ad9\u5b58\u50a8\u7528\u6237\u5bc6\u7801\u65f6\uff0c\u4e0d\u4f1a\u5b58\u50a8\u660e\u6587\u5bc6\u7801\uff0c\u6700\u5c11\u4e5f\u8981\u7ecf\u8fc7\u4e00\u6b21md5\u52a0\u5bc6\u3002<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"pgc_sgb_lightbox_settings":"","footnotes":""},"categories":[33],"tags":[8,7,5],"class_list":["post-28","post","type-post","status-publish","format-standard","hentry","category-coding","tag-java","tag-7","tag-5"],"views":2583,"_links":{"self":[{"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=\/wp\/v2\/posts\/28","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=28"}],"version-history":[{"count":2,"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=\/wp\/v2\/posts\/28\/revisions"}],"predecessor-version":[{"id":347,"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=\/wp\/v2\/posts\/28\/revisions\/347"}],"wp:attachment":[{"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=28"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=28"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yeetrack.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=28"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}