{"id":10006584,"date":"2022-09-23T19:02:03","date_gmt":"2022-09-23T11:02:03","guid":{"rendered":"https:\/\/ityet.com\/?p=10006584"},"modified":"2022-09-23T19:02:03","modified_gmt":"2022-09-23T11:02:03","slug":"%e3%80%90java%e9%9d%a2%e8%af%95%e3%80%91%e5%a4%a7%e5%8e%82%e8%a3%81%e5%91%98%ef%bc%8c%e5%b0%8f%e5%8e%82%e5%80%92%e9%97%ad%ef%bc%8c%e5%a6%82%e4%bd%95%e6%90%9e%e5%ae%9a%e9%9d%a2%e8%af%95%e5%ae%98java-sp","status":"publish","type":"post","link":"https:\/\/itmax.cn\/?p=10006584","title":{"rendered":"\u3010Java\u9762\u8bd5\u3011\u5927\u5382\u88c1\u5458\uff0c\u5c0f\u5382\u5012\u95ed\uff0c\u5982\u4f55\u641e\u5b9a\u9762\u8bd5\u5b98Java SPI\u662f\u4ec0\u4e48\uff1f\u6709\u4ec0\u4e48\u7528\uff1f"},"content":{"rendered":"<blockquote>\n<p>\u201cJava SPI\u662f\u4ec0\u4e48\uff1f\u6709\u4ec0\u4e48\u7528\uff1f\u201d<\/p>\n<p>\u8fd9\u662f\u963f\u91ccp6\u9762\u8bd5\u8fc7\u7a0b\u4e2d\uff0c\u7b2c\u4e8c\u9762\u7684\u65f6\u5019\u9047\u5230\u7684\u4e00\u4e2a\u771f\u5b9e\u7684\u95ee\u9898\u3002<\/p>\n<p>\u5982\u679c\u4f60\u4e0d\u7406\u89e3SPI\uff0c\u5efa\u8bae\u4f60\u770b\u5b8c\u6574\u4e2a\u89c6\u9891\u3002<\/p>\n<p>\u5927\u5bb6\u597d\uff0c\u6211\u662fMic\uff0c\u4e00\u4e2a\u5de5\u4f5c\u4e8614\u5e74\u7684Java\u7a0b\u5e8f\u5458<\/p>\n<p>\u8fd9\u9053\u9762\u8bd5\u9898\u7684\u6587\u5b57\u7248\u6211\u5df2\u7ecf\u6574\u7406\u572820\u4e07\u5b57\u7684\u6587\u6863\u91cc\u4e86\uff0c\u6709\u9700\u8981\u7684\u53ef\u4ee5\u5728\u6587\u7ae0\u5c3e\u7aef\u9886\u53d6<\/p>\n<p>\u4e0b\u9762\u6765\u770b\u770b\u8fd9\u4e2a\u95ee\u9898\u8003\u5bdf\u7684\u76ee\u7684<\/p>\n<\/blockquote>\n<h2>\u8003\u5bdf\u76ee\u6807<\/h2>\n<p>\u8fd9\u9053\u9898\u8003\u5bdf\u96be\u5ea6\u504f\u4e2d\u7b49\uff0c\u5bf9\u4e8e\u6ca1\u600e\u4e48\u53bb\u7814\u7a76\u8fc7\u6e90\u7801\u7684\u540c\u5b66\u6765\u8bf4\uff0cSPI\u662f\u975e\u5e38\u964c\u751f\u7684\u6982\u5ff5<\/p>\n<p>\u8003\u5bdf\u4eba\u7fa4\u4e3b\u8981\u8fd8\u662f3\u52305\u5e74\u6bd4\u8f83\u591a\u3002<\/p>\n<p>3~5\u5e74\u5c5e\u4e8e\u4e2d\u9ad8\u7aefJava\u5f00\u53d1\u4eba\u7fa4\uff0c\u56e0\u6b64\u8003\u5bdf\u76ee\u7684\u4e5f\u5f88\u660e\u663e\uff1a<\/p>\n<ul>\n<li>\u4e86\u89e3\u6c42\u804c\u8005\u5bf9\u4e8e\u6280\u672f\u9886\u57df\u7684\u7406\u89e3\u7a0b\u5ea6<\/li>\n<li>\u5b9e\u73b0\u9ad8\u7ea7\u5f00\u53d1\u7684\u4eba\u624d\u9009\u62d4<\/li>\n<\/ul>\n<p>Java\u8fd9\u4e2a\u884c\u4e1a\u6ca1\u6709\u4eba\u624d\u8bc4\u7ea7\u6807\u51c6\uff0c\u6240\u4ee5\u5728\u9762\u8bd5\u7684\u65f6\u5019\uff0c\u9762\u8bd5\u5b98\u4e5f\u6bd4\u8f83\u96be\u53bb\u754c\u5b9a\u4f60\u7684\u804c\u7ea7\u3002<\/p>\n<p>\u6240\u4ee5\u5728\u4e92\u8054\u7f51\u4f01\u4e1a\uff0c\u6280\u672f\u9762\u7684\u8003\u5bdf\u4f1a\u6bd4\u8f83\u6df1\u3002<\/p>\n<p>\u6240\u4ee5\uff0c\u8981\u60f3\u56de\u7b54\u597d\u8fd9\u4e2a\u95ee\u9898\uff0c\u8fd8\u662f\u8981\u6709\u4e00\u4e9b\u81ea\u5df1\u7684\u89c1\u89e3\u3002<\/p>\n<h2>\u95ee\u9898\u89e3\u6790<\/h2>\n<p>Java SPI\uff0c\u5168\u79f0\u662fService Provider Interface\u3002<\/p>\n<p>\u5b83\u662f\u4e00\u79cd\u57fa\u4e8e\u63a5\u53e3\u7684\u52a8\u6001\u6269\u5c55\u673a\u5236\uff0c\u76f8\u5f53\u4e8eJava\u91cc\u9762\u63d0\u4f9b\u4e86\u4e00\u5957\u63a5\u53e3\u3002<\/p>\n<p>\u7136\u540e\u7b2c\u4e09\u65b9\u53ef\u4ee5\u5b9e\u73b0\u8fd9\u4e2a\u63a5\u53e3\u6765\u5b8c\u6210\u529f\u80fd\u7684\u6269\u5c55\u548c\u5b9e\u73b0\u3002<\/p>\n<p>\u4e3e\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\u3002<\/p>\n<p>\u5728Java\u7684SDK\u91cc\u9762\uff0c\u63d0\u4f9b\u4e86\u4e00\u4e2a\u6570\u636e\u5e93\u9a71\u52a8\u7684\u63a5\u53e3java.sql.Driver\u3002<\/p>\n<p>\u5b83\u7684\u4f5c\u7528\u662f\u63d0\u4f9b\u6570\u636e\u5e93\u7684\u8bbf\u95ee\u80fd\u529b\u3002<\/p>\n<p>\u4e0d\u8fc7\uff0c\u5728Java\u91cc\u9762\u5e76\u6ca1\u6709\u63d0\u4f9b\u5b9e\u73b0\uff0c\u56e0\u4e3a\u4e0d\u540c\u7684\u6570\u636e\u5e93\u5382\u5546\uff0c\u4f1a\u6709\u4e0d\u540c\u7684\u8bed\u6cd5\u548c\u5b9e\u73b0\u3002<\/p>\n<p>\u6240\u4ee5\u53ea\u80fd\u7531\u7b2c\u4e09\u65b9\u6570\u636e\u5e93\u5382\u5546\u6765\u5b9e\u73b0\uff0c\u6bd4\u5982Oracle\u662foracle.jdbc.OracleDriver\uff0cmysql\u662fcom.mysql.jdbc.Driver\u3002<\/p>\n<p>\u7136\u540e\u5728\u5e94\u7528\u5f00\u53d1\u7684\u65f6\u5019\uff0c\u6839\u636e\u96c6\u6210\u7684\u9a71\u52a8\u5b9e\u73b0\u8fde\u63a5\u5230\u5bf9\u5e94\u6570\u636e\u5e93\u3002<\/p>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVc2DQX\" alt=\"image-20220813151427856\" title=\"image-20220813151427856\" loading=\"lazy\"><\/p>\n<p>Java\u4e2dSPI\u673a\u5236\u4e3b\u8981\u601d\u60f3\u662f\u5c06\u88c5\u914d\u7684\u63a7\u5236\u6743\u79fb\u5230\u7a0b\u5e8f\u4e4b\u5916\u5b9e\u73b0\u6807\u51c6\u548c\u5b9e\u73b0\u7684\u89e3\u8026\uff0c\u4ee5\u53ca\u63d0\u4f9b\u52a8\u6001\u53ef\u63d2\u62d4\u7684\u80fd\u529b\uff0c\u5728\u6a21\u5757\u5316\u7684\u8bbe\u7acb\u4e2d\uff0c\u8fd9\u79cd\u601d\u60f3\u975e\u5e38\u91cd\u8981\u3002<\/p>\n<p>\u5b9e\u73b0Java SPI\uff0c\u9700\u8981\u6ee1\u8db3\u51e0\u4e2a\u57fa\u672c\u7684\u683c\u5f0f\uff1a<\/p>\n<ul>\n<li>\u9700\u8981\u5148\u5b9a\u4e49\u4e00\u4e2a\u63a5\u53e3\uff0c\u4f5c\u4e3a\u6269\u5c55\u7684\u6807\u51c6<\/li>\n<li>\u5728classpath\u76ee\u5f55\u4e0b\u521b\u5efaMETA-INF\/service\u6587\u4ef6\u76ee\u5f55<\/li>\n<li>\u5728\u8fd9\u4e2a\u76ee\u5f55\u4e0b\uff0c\u4ee5\u63a5\u53e3\u7684\u5168\u9650\u5b9a\u540d\u547d\u540d\u7684\u914d\u7f6e\u6587\u4ef6\uff0c \u6587\u4ef6\u5185\u5bb9\u662f\u8fd9\u4e2a\u63a5\u53e3\u7684\u5b9e\u73b0\u7c7b<\/li>\n<li>\n<p>\u5728\u5e94\u7528\u7a0b\u5e8f\u91cc\u9762\uff0c\u4f7f\u7528ServiceLoad\uff0c\u5c31\u53ef\u4ee5\u6839\u636e\u63a5\u53e3\u540d\u79f0\u627e\u5230classpath\u6240\u6709\u7684\u6269\u5c55\u65f6\u95f4<\/p>\n<p>\u7136\u540e\u6839\u636e\u4e0a\u4e0b\u6587\u573a\u666f\u9009\u62e9\u5b9e\u73b0\u7c7b\u5b8c\u6210\u529f\u80fd\u7684\u8c03\u7528\u3002<\/p>\n<\/li>\n<\/ul>\n<p><img decoding=\"async\" referrerpolicy=\"no-referrer\" src=\"https:\/\/segmentfault.com\/img\/bVc2DQY\" alt=\"image-20220813153622832\" title=\"image-20220813153622832\" loading=\"lazy\"><\/p>\n<p>Java SPI\u6709\u4e00\u5b9a\u7684\u4e0d\u8db3\u4e4b\u5904\uff0c\u6bd4\u5982\uff0c\u4e0d\u80fd\u6839\u636e\u9700\u6c42\u53bb\u52a0\u8f7d\u6269\u5c55\u5b9e\u73b0\uff0c\u6bcf\u6b21\u90fd\u4f1a\u52a0\u8f7d\u6269\u5c55\u63a5\u53e3\u7684\u6240\u6709\u5b9e\u73b0\u7c7b\u5e76\u8fdb\u884c\u5b9e\u4f8b\u5316\uff0c\u5b9e\u4f8b\u5316\u4f1a\u9020\u6210\u6027\u80fd\u5f00\u9500\uff0c\u5e76\u4e14\u52a0\u8f7d\u4e00\u4e9b\u4e0d\u9700\u8981\u7528\u5230\u7684\u5b9e\u73b0\u7c7b\uff0c\u4f1a\u5bfc\u81f4\u5185\u5b58\u8d44\u6e90\u7684\u6d6a\u8d39\u3002<\/p>\n<h2>\u9ad8\u624b\uff1a<\/h2>\n<p>Java SPI\u662fJava\u91cc\u9762\u63d0\u4f9b\u7684\u4e00\u79cd\u63a5\u53e3\u6269\u5c55\u673a\u5236\u3002<\/p>\n<p>\u5b83\u7684\u4f5c\u7528\u6211\u8ba4\u4e3a\u6709\u4e24\u4e2a\uff1a<\/p>\n<ul>\n<li>\u628a\u6807\u51c6\u5b9a\u4e49\u548c\u63a5\u53e3\u5b9e\u73b0\u5206\u79bb\uff0c\u5728\u6a21\u5757\u5316\u5f00\u53d1\u4e2d\u5f88\u597d\u7684\u5b9e\u73b0\u4e86\u89e3\u8026<\/li>\n<li>\u5b9e\u73b0\u529f\u80fd\u7684\u6269\u5c55\uff0c\u66f4\u597d\u7684\u6ee1\u8db3\u5b9a\u5236\u5316\u7684\u9700\u6c42<\/li>\n<\/ul>\n<p>\u9664\u4e86Java\u7684SPI\u4ee5\u5916\uff0c\u57fa\u4e8eSPI\u601d\u60f3\u7684\u6269\u5c55\u5b9e\u73b0\u8fd8\u6709\u5f88\u591a\uff0c\u6bd4\u5982Spring\u91cc\u9762\u7684SpringFactoriesLoader\u3002<\/p>\n<p>Dubbo\u91cc\u9762\u7684ExtensionLoader\uff0c\u5e76\u4e14Dubbo\u8fd8\u5728SPI\u57fa\u7840\u4e0a\u505a\u4e86\u66f4\u8fdb\u4e00\u6b65\u4f18\u5316\uff0c\u63d0\u4f9b\u4e86\u6fc0\u6d3b\u6269\u5c55\u70b9\u3001\u81ea\u9002\u5e94\u6269\u5c55\u70b9\u3002<\/p>\n<h2>\u603b\u7ed3<\/h2>\n<p>\u5927\u5bb6\u77e5\u9053\u600e\u4e48\u56de\u7b54\u4e86\u5417\uff1f<\/p>\n<p>\u5982\u679c\u4f60\u559c\u6b22\u6211\u7684\u4f5c\u54c1\uff0c\u8bb0\u5f97\u70b9\u8d5e\u6536\u85cf\u52a0\u5173\u6ce8\u54e6\uff01\uff01\uff01<\/p>\n<blockquote><p>\u7248\u6743\u58f0\u660e\uff1a\u672c\u535a\u5ba2\u6240\u6709\u6587\u7ae0\u9664\u7279\u522b\u58f0\u660e\u5916\uff0c\u5747\u91c7\u7528 CC BY-NC-SA 4.0 \u8bb8\u53ef\u534f\u8bae\u3002\u8f6c\u8f7d\u8bf7\u6ce8\u660e\u6765\u81ea <code>Mic\u5e26\u4f60\u5b66\u67b6\u6784<\/code>\uff01<br \/>\u5982\u679c\u672c\u7bc7\u6587\u7ae0\u5bf9\u60a8\u6709\u5e2e\u52a9\uff0c\u8fd8\u8bf7\u5e2e\u5fd9\u70b9\u4e2a\u5173\u6ce8\u548c\u8d5e\uff0c\u60a8\u7684\u575a\u6301\u662f\u6211\u4e0d\u65ad\u521b\u4f5c\u7684\u52a8\u529b\u3002\u6b22\u8fce\u5173\u6ce8\u540c\u540d\u5fae\u4fe1\u516c\u4f17\u53f7\u83b7\u53d6\u66f4\u591a\u6280\u672f\u5e72\u8d27\uff01<\/p><\/blockquote>\n<p><a href=\"https:\/\/segmentfault.com\/a\/1190000042536515\">https:\/\/segmentfault.com\/a\/1190000042536515<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u201cJava SPI\u662f\u4ec0\u4e48\uff1f\u6709\u4ec0\u4e48\u7528\uff1f\u201d \u8fd9\u662f\u963f\u91ccp6\u9762\u8bd5\u8fc7\u7a0b\u4e2d\uff0c\u7b2c\u4e8c\u9762\u7684\u65f6\u5019\u9047\u5230\u7684\u4e00\u4e2a\u771f\u5b9e\u7684\u95ee\u9898\u3002 \u5982\u679c\u4f60\u4e0d\u7406 [&hellip;]<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[],"tags":[],"class_list":["post-10006584","post","type-post","status-publish","format-standard","hentry"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10006584","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10006584"}],"version-history":[{"count":0,"href":"https:\/\/itmax.cn\/index.php?rest_route=\/wp\/v2\/posts\/10006584\/revisions"}],"wp:attachment":[{"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10006584"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10006584"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itmax.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10006584"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}