{"id":163235,"date":"2024-11-04T21:48:21","date_gmt":"2024-11-04T13:48:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/163235\/"},"modified":"2024-11-04T21:48:21","modified_gmt":"2024-11-04T13:48:21","slug":"%e8%a7%a3%e6%b1%bajava%e9%80%a3%e6%8e%a5db2%e6%95%b8%e6%93%9a%e5%ba%ab%e9%98%bb%e5%a1%9e%e5%95%8f%e9%a1%8c%e7%9a%84%e6%8a%80%e5%b7%a7%ef%bc%88java%e9%80%a3%e6%8e%a5db2%e6%95%b8%e6%93%9a%e5%ba%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/163235\/","title":{"rendered":"\u89e3\u6c7aJava\u9023\u63a5DB2\u6578\u64da\u5eab\u963b\u585e\u554f\u984c\u7684\u6280\u5de7\uff08Java\u9023\u63a5DB2\u6578\u64da\u5eab\u963b\u585e\uff09"},"content":{"rendered":"<h1 id=\"%e8%a7%a3%e6%b1%bajava%e9%80%a3%e6%8e%a5db2%e6%95%b8%e6%93%9a%e5%ba%ab%e9%98%bb%e5%a1%9e%e5%95%8f%e9%a1%8c%e7%9a%84%e6%8a%80%e5%b7%a7-wLduXdAFBs\">\u89e3\u6c7aJava\u9023\u63a5DB2\u6578\u64da\u5eab\u963b\u585e\u554f\u984c\u7684\u6280\u5de7<\/h1>\n<p>\u5728\u73fe\u4ee3\u4f01\u696d\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u5c0d\u65bc\u61c9\u7528\u7a0b\u5e8f\u7684\u904b\u884c\u81f3\u95dc\u91cd\u8981\u3002\u7279\u5225\u662f\u7576\u4f7f\u7528Java\u9023\u63a5DB2\u6578\u64da\u5eab\u6642\uff0c\u963b\u585e\u554f\u984c\u53ef\u80fd\u6703\u5c0e\u81f4\u61c9\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u4e0b\u964d\uff0c\u5f71\u97ff\u7528\u6236\u9ad4\u9a57\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u4e00\u4e9b\u89e3\u6c7aJava\u9023\u63a5DB2\u6578\u64da\u5eab\u963b\u585e\u554f\u984c\u7684\u6280\u5de7\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u63d0\u9ad8\u61c9\u7528\u7a0b\u5e8f\u7684\u6548\u7387\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afdb2%e6%95%b8%e6%93%9a%e5%ba%ab%e9%98%bb%e5%a1%9e%ef%bc%9f-wLduXdAFBs\">\u4ec0\u9ebc\u662fDB2\u6578\u64da\u5eab\u963b\u585e\uff1f<\/h2>\n<p>DB2\u6578\u64da\u5eab\u963b\u585e\u662f\u6307\u7576\u4e00\u500b\u4e8b\u52d9\u5728\u7b49\u5f85\u53e6\u4e00\u500b\u4e8b\u52d9\u91cb\u653e\u8cc7\u6e90\u6642\uff0c\u5c0e\u81f4\u7684\u6027\u80fd\u4e0b\u964d\u73fe\u8c61\u3002\u9019\u7a2e\u60c5\u6cc1\u901a\u5e38\u767c\u751f\u5728\u591a\u500b\u4e8b\u52d9\u540c\u6642\u8a2a\u554f\u76f8\u540c\u7684\u6578\u64da\u6642\uff0c\u7279\u5225\u662f\u5728\u9ad8\u4e26\u767c\u74b0\u5883\u4e2d\u3002\u7576\u4e00\u500b\u4e8b\u52d9\u6301\u6709\u9396\u800c\u53e6\u4e00\u500b\u4e8b\u52d9\u8a66\u5716\u7372\u53d6\u8a72\u9396\u6642\uff0c\u5c31\u6703\u51fa\u73fe\u963b\u585e\u3002<\/p>\n<h2 id=\"%e9%98%bb%e5%a1%9e%e7%9a%84%e5%8e%9f%e5%9b%a0-wLduXdAFBs\">\u963b\u585e\u7684\u539f\u56e0<\/h2>\n<ul>\n<li><strong>\u9577\u6642\u9593\u904b\u884c\u7684\u4e8b\u52d9\uff1a<\/strong>\u5982\u679c\u4e00\u500b\u4e8b\u52d9\u57f7\u884c\u6642\u9593\u904e\u9577\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u5176\u4ed6\u4e8b\u52d9\u7121\u6cd5\u7372\u53d6\u6240\u9700\u7684\u9396\u3002<\/li>\n<li><strong>\u4e0d\u7576\u7684\u9396\u7b56\u7565\uff1a<\/strong>\u4f7f\u7528\u4e0d\u7576\u7684\u9396\u7b56\u7565\uff08\u5982\u904e\u5ea6\u9396\u5b9a\uff09\u6703\u589e\u52a0\u963b\u585e\u7684\u53ef\u80fd\u6027\u3002<\/li>\n<li><strong>\u9ad8\u4e26\u767c\u8a2a\u554f\uff1a<\/strong>\u5728\u9ad8\u4e26\u767c\u74b0\u5883\u4e2d\uff0c\u8a31\u591a\u4e8b\u52d9\u540c\u6642\u8a2a\u554f\u76f8\u540c\u7684\u6578\u64da\uff0c\u5bb9\u6613\u5c0e\u81f4\u9396\u7af6\u722d\u3002<\/li>\n<\/ul>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e9%98%bb%e5%a1%9e%e5%95%8f%e9%a1%8c%e7%9a%84%e6%8a%80%e5%b7%a7-wLduXdAFBs\">\u89e3\u6c7a\u963b\u585e\u554f\u984c\u7684\u6280\u5de7<\/h2>\n<h3 id=\"1-%e5%84%aa%e5%8c%96%e4%ba%8b%e5%8b%99%e7%9a%84%e5%9f%b7%e8%a1%8c%e6%99%82%e9%96%93-wLduXdAFBs\">1. \u512a\u5316\u4e8b\u52d9\u7684\u57f7\u884c\u6642\u9593<\/h3>\n<p>\u6e1b\u5c11\u4e8b\u52d9\u7684\u57f7\u884c\u6642\u9593\u662f\u89e3\u6c7a\u963b\u585e\u554f\u984c\u7684\u6709\u6548\u65b9\u6cd5\u3002\u958b\u767c\u8005\u61c9\u8a72\u78ba\u4fdd\u4e8b\u52d9\u53ea\u57f7\u884c\u5fc5\u8981\u7684\u64cd\u4f5c\uff0c\u4e26\u76e1\u91cf\u6e1b\u5c11\u5728\u4e8b\u52d9\u4e2d\u57f7\u884c\u7684\u67e5\u8a62\u6578\u91cf\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u5c07\u67e5\u8a62\u79fb\u5230\u4e8b\u52d9\u5916\u90e8\uff0c\u6216\u4f7f\u7528\u6279\u91cf\u8655\u7406\u4f86\u6e1b\u5c11\u4e8b\u52d9\u7684\u6578\u91cf\u3002<\/p>\n<pre><code>Connection conn = DriverManager.getConnection(\"jdbc:db2:\/\/localhost:50000\/sample\", \"user\", \"password\");\ntry {\n    conn.setAutoCommit(false);\n    \/\/ \u57f7\u884c\u5fc5\u8981\u7684\u64cd\u4f5c\n    \/\/ ...\n    conn.commit();\n} catch (SQLException e) {\n    conn.rollback();\n} finally {\n    conn.close();\n}<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8%e5%90%88%e9%81%a9%e7%9a%84%e9%8e%96%e7%ad%96%e7%95%a5-wLduXdAFBs\">2. \u4f7f\u7528\u5408\u9069\u7684\u9396\u7b56\u7565<\/h3>\n<p>\u9078\u64c7\u5408\u9069\u7684\u9396\u7b56\u7565\u53ef\u4ee5\u6709\u6548\u6e1b\u5c11\u963b\u585e\u7684\u767c\u751f\u3002DB2\u652f\u6301\u591a\u7a2e\u9396\u6a21\u5f0f\uff0c\u5305\u62ec\u884c\u9396\u548c\u8868\u9396\u3002\u958b\u767c\u8005\u61c9\u6839\u64da\u5177\u9ad4\u60c5\u6cc1\u9078\u64c7\u5408\u9069\u7684\u9396\u6a21\u5f0f\uff0c\u4e26\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u5168\u8868\u9396\u5b9a\u3002<\/p>\n<h3 id=\"3-%e5%af%a6%e6%96%bd%e9%87%8d%e8%a9%a6%e6%a9%9f%e5%88%b6-wLduXdAFBs\">3. \u5be6\u65bd\u91cd\u8a66\u6a5f\u5236<\/h3>\n<p>\u5728\u9ad8\u4e26\u767c\u74b0\u5883\u4e2d\uff0c\u4e8b\u52d9\u53ef\u80fd\u6703\u56e0\u70ba\u9396\u7af6\u722d\u800c\u5931\u6557\u3002\u5be6\u65bd\u91cd\u8a66\u6a5f\u5236\u53ef\u4ee5\u5e6b\u52a9\u61c9\u7528\u7a0b\u5e8f\u5728\u9047\u5230\u963b\u585e\u6642\u81ea\u52d5\u91cd\u8a66\u4e8b\u52d9\u3002\u9019\u6a23\u53ef\u4ee5\u63d0\u9ad8\u61c9\u7528\u7a0b\u5e8f\u7684\u7a69\u5b9a\u6027\u548c\u7528\u6236\u9ad4\u9a57\u3002<\/p>\n<pre><code>int retries = 3;\nwhile (retries &gt; 0) {\n    try {\n        \/\/ \u5617\u8a66\u57f7\u884c\u4e8b\u52d9\n        break; \/\/ \u6210\u529f\u5247\u9000\u51fa\u5faa\u74b0\n    } catch (SQLException e) {\n        retries--;\n        if (retries == 0) {\n            throw e; \/\/ \u8d85\u904e\u91cd\u8a66\u6b21\u6578\u5247\u62cb\u51fa\u7570\u5e38\n        }\n    }\n}<\/code><\/pre>\n<h3 id=\"4-%e7%9b%a3%e6%8e%a7%e5%92%8c%e5%88%86%e6%9e%90%e6%95%b8%e6%93%9a%e5%ba%ab%e6%80%a7%e8%83%bd-wLduXdAFBs\">4. \u76e3\u63a7\u548c\u5206\u6790\u6578\u64da\u5eab\u6027\u80fd<\/h3>\n<p>\u5b9a\u671f\u76e3\u63a7\u548c\u5206\u6790DB2\u6578\u64da\u5eab\u7684\u6027\u80fd\u53ef\u4ee5\u5e6b\u52a9\u53ca\u6642\u767c\u73fe\u548c\u89e3\u6c7a\u963b\u585e\u554f\u984c\u3002\u4f7f\u7528DB2\u63d0\u4f9b\u7684\u6027\u80fd\u76e3\u63a7\u5de5\u5177\uff0c\u53ef\u4ee5\u7372\u53d6\u6709\u95dc\u4e8b\u52d9\u3001\u9396\u548c\u7b49\u5f85\u7684\u8a73\u7d30\u4fe1\u606f\uff0c\u5f9e\u800c\u9032\u884c\u91dd\u5c0d\u6027\u7684\u512a\u5316\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-wLduXdAFBs\">\u7e3d\u7d50<\/h2>\n<p>\u89e3\u6c7aJava\u9023\u63a5DB2\u6578\u64da\u5eab\u7684\u963b\u585e\u554f\u984c\u9700\u8981\u5f9e\u591a\u65b9\u9762\u5165\u624b\uff0c\u5305\u62ec\u512a\u5316\u4e8b\u52d9\u57f7\u884c\u6642\u9593\u3001\u9078\u64c7\u5408\u9069\u7684\u9396\u7b56\u7565\u3001\u5be6\u65bd\u91cd\u8a66\u6a5f\u5236\u4ee5\u53ca\u5b9a\u671f\u76e3\u63a7\u6578\u64da\u5eab\u6027\u80fd\u3002\u901a\u904e\u9019\u4e9b\u6280\u5de7\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u6709\u6548\u63d0\u9ad8\u61c9\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\uff0c\u5f9e\u800c\u63d0\u5347\u7528\u6236\u9ad4\u9a57\u3002\u5982\u679c\u60a8\u9700\u8981\u66f4\u9ad8\u6548\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u96f2\u4f3a\u670d\u5668<\/a>\u4f86\u652f\u6301\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\u904b\u884c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u89e3\u6c7aJava\u9023\u63a5DB2\u6578\u64da\u5eab\u963b\u585e\u554f\u984c\u7684\u6280\u5de7\uff0c\u63d0\u5347\u6578\u64da\u5eab\u6027\u80fd\uff0c\u78ba\u4fdd\u61c9\u7528\u7a0b\u5e8f\u6d41\u66a2\u904b\u884c\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-163235","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163235","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=163235"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163235\/revisions"}],"predecessor-version":[{"id":163236,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/163235\/revisions\/163236"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=163235"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=163235"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=163235"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}