{"id":431,"date":"2012-11-19T15:15:42","date_gmt":"2012-11-19T07:15:42","guid":{"rendered":"http:\/\/www.kiccleaf.com\/?p=431"},"modified":"2020-08-27T15:43:27","modified_gmt":"2020-08-27T07:43:27","slug":"java-md5%e7%94%9f%e6%88%90%e6%95%b0%e6%8d%ae%e5%ae%9e%e7%8e%b0","status":"publish","type":"post","link":"http:\/\/www.kiccleaf.com\/?p=431","title":{"rendered":"Java MD5\u751f\u6210\u6570\u636e\u5b9e\u73b0"},"content":{"rendered":"

\u5e38\u7528\u7684JAVA MD5\u5b9e\u73b0\u65b9\u6cd5\u3002<\/p>\n

\u8c03\u7528 MD5(“123456”)
\n\u8fd4\u56de\uff1ae10adc3949ba59abbe56e057f20f883e<\/p>\n

\r\n\t\/**\r\n\t * \u5b57\u7b26\u4e32\u6570\u636e\u8fdb\u884cMD5\u7b97\u6cd5\u52a0\u5bc6\r\n\t *\/\r\n\tpublic static String MD5(String s) {\r\n\t\tString resultStr = null;\r\n\r\n\t\ttry {\r\n\t\t\tbyte[] source = s.getBytes("UTF-8");\r\n\t\t\tchar hexDigits[] = { \/\/ \u7528\u6765\u5c06\u5b57\u8282\u8f6c\u6362\u6210 16 \u8fdb\u5236\u8868\u793a\u7684\u5b57\u7b26\r\n\t\t\t'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c','d', 'e', 'f' };\r\n\t\t\tjava.security.MessageDigest md = java.security.MessageDigest\r\n\t\t\t\t\t.getInstance("MD5");\r\n\t\t\tmd.update(source);\r\n\t\t\tbyte tmp[] = md.digest(); \/\/ MD5 \u7684\u8ba1\u7b97\u7ed3\u679c\u662f\u4e00\u4e2a 128 \u4f4d\u7684\u957f\u6574\u6570\uff0c\r\n\t\t\t\t\t\t\t\t\t\t\/\/ \u7528\u5b57\u8282\u8868\u793a\u5c31\u662f 16 \u4e2a\u5b57\u8282\r\n\t\t\tchar str[] = new char[16 * 2]; \/\/ \u6bcf\u4e2a\u5b57\u8282\u7528 16 \u8fdb\u5236\u8868\u793a\u7684\u8bdd\uff0c\u4f7f\u7528\u4e24\u4e2a\u5b57\u7b26\uff0c\r\n\t\t\t\t\t\t\t\t\t\t\t\/\/ \u6240\u4ee5\u8868\u793a\u6210 16 \u8fdb\u5236\u9700\u8981 32 \u4e2a\u5b57\u7b26\r\n\t\t\tint k = 0; \/\/ \u8868\u793a\u8f6c\u6362\u7ed3\u679c\u4e2d\u5bf9\u5e94\u7684\u5b57\u7b26\u4f4d\u7f6e\r\n\t\t\tfor (int i = 0; i < 16; i++) { \/\/ \u4ece\u7b2c\u4e00\u4e2a\u5b57\u8282\u5f00\u59cb\uff0c\u5bf9 MD5 \u7684\u6bcf\u4e00\u4e2a\u5b57\u8282\r\n\t\t\t\t\t\t\t\t\t\t\t\/\/ \u8f6c\u6362\u6210 16 \u8fdb\u5236\u5b57\u7b26\u7684\u8f6c\u6362\r\n\t\t\t\tbyte byte0 = tmp[i]; \/\/ \u53d6\u7b2c i \u4e2a\u5b57\u8282\r\n\t\t\t\tstr[k++] = hexDigits[byte0 >>> 4 & 0xf]; \/\/ \u53d6\u5b57\u8282\u4e2d\u9ad8 4 \u4f4d\u7684\u6570\u5b57\u8f6c\u6362,\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\/\/ >>>\r\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\/\/ \u4e3a\u903b\u8f91\u53f3\u79fb\uff0c\u5c06\u7b26\u53f7\u4f4d\u4e00\u8d77\u53f3\u79fb\r\n\t\t\t\tstr[k++] = hexDigits[byte0 & 0xf]; \/\/ \u53d6\u5b57\u8282\u4e2d\u4f4e 4 \u4f4d\u7684\u6570\u5b57\u8f6c\u6362\r\n\t\t\t}\r\n\t\t\tresultStr = new String(str); \/\/ \u6362\u540e\u7684\u7ed3\u679c\u8f6c\u6362\u4e3a\u5b57\u7b26\u4e32\r\n\r\n\t\t} catch (Exception e) {\r\n\t\t\te.printStackTrace();\r\n\t\t}\r\n\t\treturn resultStr;\r\n\t}\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"
\u5e38\u7528\u7684JAVA MD5\u5b9e\u73b0\u65b9\u6cd5\u3002 \u8c03\u7528 MD5(&…<\/p>\n
Continue readingJava MD5\u751f\u6210\u6570\u636e\u5b9e\u73b0<\/span><\/a><\/div>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"iawp_total_views":0,"footnotes":""},"categories":[7],"tags":[91,92],"class_list":["post-431","post","type-post","status-publish","format-standard","hentry","category-7","tag-java","tag-md5","entry"],"views":3401,"_links":{"self":[{"href":"http:\/\/www.kiccleaf.com\/index.php?rest_route=\/wp\/v2\/posts\/431","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.kiccleaf.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.kiccleaf.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.kiccleaf.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.kiccleaf.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=431"}],"version-history":[{"count":1,"href":"http:\/\/www.kiccleaf.com\/index.php?rest_route=\/wp\/v2\/posts\/431\/revisions"}],"predecessor-version":[{"id":694,"href":"http:\/\/www.kiccleaf.com\/index.php?rest_route=\/wp\/v2\/posts\/431\/revisions\/694"}],"wp:attachment":[{"href":"http:\/\/www.kiccleaf.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=431"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.kiccleaf.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=431"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.kiccleaf.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=431"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}