{"id":189492,"date":"2024-11-12T08:14:21","date_gmt":"2024-11-12T00:14:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/189492\/"},"modified":"2024-11-12T08:14:23","modified_gmt":"2024-11-12T00:14:23","slug":"%e5%9c%96%e8%a7%a3-%e6%b7%b1%e5%85%a5%e6%b7%ba%e5%87%bajavaweb%ef%bc%9a%e4%ba%8b%e5%8b%99%e5%bf%85%e6%9c%83%e5%bf%85%e7%9f%a5","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/189492\/","title":{"rendered":"\u5716\u89e3 &amp; \u6df1\u5165\u6dfa\u51faJavaWeb\uff1a\u4e8b\u52d9\u5fc5\u6703\u5fc5\u77e5"},"content":{"rendered":"<h1 id=\"%e5%9c%96%e8%a7%a3-%e6%b7%b1%e5%85%a5%e6%b7%ba%e5%87%bajavaweb%ef%bc%9a%e4%ba%8b%e5%8b%99%e5%bf%85%e6%9c%83%e5%bf%85%e7%9f%a5-hPmNrChkHz\">\u5716\u89e3 &amp; \u6df1\u5165\u6dfa\u51faJavaWeb\uff1a\u4e8b\u52d9\u5fc5\u6703\u5fc5\u77e5<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u7db2\u7d61\u4e16\u754c\u4e2d\uff0cJavaWeb\u6280\u8853\u5df2\u6210\u70ba\u958b\u767c\u52d5\u614b\u7db2\u7ad9\u548c\u4f01\u696d\u61c9\u7528\u7a0b\u5e8f\u7684\u91cd\u8981\u5de5\u5177\u3002\u7121\u8ad6\u662f\u5c0f\u578b\u4f01\u696d\u9084\u662f\u5927\u578b\u4f01\u696d\uff0cJavaWeb\u90fd\u80fd\u63d0\u4f9b\u7a69\u5b9a\u548c\u9ad8\u6548\u7684\u89e3\u6c7a\u65b9\u6848\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eJavaWeb\u4e2d\u7684\u4e8b\u52d9\u7ba1\u7406\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\u548c\u4ee3\u78bc\u7247\u6bb5\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u597d\u5730\u7406\u89e3\u9019\u4e00\u6982\u5ff5\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e4%ba%8b%e5%8b%99%ef%bc%9f-hPmNrChkHz\">\u4ec0\u9ebc\u662f\u4e8b\u52d9\uff1f<\/h2>\n<p>\u5728\u8a08\u7b97\u6a5f\u79d1\u5b78\u4e2d\uff0c\u4e8b\u52d9\uff08Transaction\uff09\u662f\u4e00\u7d44\u64cd\u4f5c\u7684\u96c6\u5408\uff0c\u9019\u4e9b\u64cd\u4f5c\u8981\u9ebc\u5168\u90e8\u6210\u529f\uff0c\u8981\u9ebc\u5168\u90e8\u5931\u6557\u3002\u4e8b\u52d9\u7684\u4e3b\u8981\u7279\u6027\u5305\u62ec\u539f\u5b50\u6027\u3001\u4e00\u81f4\u6027\u3001\u9694\u96e2\u6027\u548c\u6301\u4e45\u6027\uff0c\u901a\u5e38\u88ab\u7a31\u70baACID\u7279\u6027\u3002<\/p>\n<ul>\n<li><strong>\u539f\u5b50\u6027\uff08Atomicity\uff09<\/strong>\uff1a\u4e8b\u52d9\u4e2d\u7684\u6240\u6709\u64cd\u4f5c\u8981\u9ebc\u5168\u90e8\u57f7\u884c\uff0c\u8981\u9ebc\u5168\u90e8\u4e0d\u57f7\u884c\u3002<\/li>\n<li><strong>\u4e00\u81f4\u6027\uff08Consistency\uff09<\/strong>\uff1a\u4e8b\u52d9\u7684\u57f7\u884c\u5fc5\u9808\u4f7f\u6578\u64da\u5f9e\u4e00\u500b\u4e00\u81f4\u7684\u72c0\u614b\u8f49\u8b8a\u5230\u53e6\u4e00\u500b\u4e00\u81f4\u7684\u72c0\u614b\u3002<\/li>\n<li><strong>\u9694\u96e2\u6027\uff08Isolation\uff09<\/strong>\uff1a\u4e8b\u52d9\u7684\u57f7\u884c\u4e0d\u61c9\u53d7\u5230\u5176\u4ed6\u4e8b\u52d9\u7684\u5f71\u97ff\u3002<\/li>\n<li><strong>\u6301\u4e45\u6027\uff08Durability\uff09<\/strong>\uff1a\u4e00\u65e6\u4e8b\u52d9\u63d0\u4ea4\uff0c\u5176\u7d50\u679c\u61c9\u6c38\u4e45\u4fdd\u5b58\uff0c\u5373\u4f7f\u7cfb\u7d71\u5d29\u6f70\u4e5f\u4e0d\u6703\u4e1f\u5931\u3002<\/li>\n<\/ul>\n<h2 id=\"javaweb%e4%b8%ad%e7%9a%84%e4%ba%8b%e5%8b%99%e7%ae%a1%e7%90%86-hPmNrChkHz\">JavaWeb\u4e2d\u7684\u4e8b\u52d9\u7ba1\u7406<\/h2>\n<p>\u5728JavaWeb\u61c9\u7528\u4e2d\uff0c\u4e8b\u52d9\u7ba1\u7406\u901a\u5e38\u662f\u901a\u904eJava EE\u7684JTA\uff08Java Transaction API\uff09\u4f86\u5be6\u73fe\u7684\u3002JTA\u63d0\u4f9b\u4e86\u4e00\u500b\u6a19\u6e96\u7684API\u4f86\u7ba1\u7406\u4e8b\u52d9\uff0c\u4e26\u652f\u6301\u5206\u4f48\u5f0f\u4e8b\u52d9\u7684\u8655\u7406\u3002<\/p>\n<h3 id=\"%e4%ba%8b%e5%8b%99%e7%9a%84%e9%96%8b%e5%a7%8b%e8%88%87%e6%8f%90%e4%ba%a4-hPmNrChkHz\">\u4e8b\u52d9\u7684\u958b\u59cb\u8207\u63d0\u4ea4<\/h3>\n<p>\u5728Java\u4e2d\uff0c\u4e8b\u52d9\u7684\u958b\u59cb\u548c\u63d0\u4ea4\u901a\u5e38\u6d89\u53ca\u5230\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<pre><code>\nimport javax.transaction.UserTransaction;\nimport javax.naming.InitialContext;\n\npublic class TransactionExample {\n    public void performTransaction() {\n        UserTransaction utx = null;\n        try {\n            InitialContext ctx = new InitialContext();\n            utx = (UserTransaction) ctx.lookup(\"java:comp\/UserTransaction\");\n            utx.begin(); \/\/ \u958b\u59cb\u4e8b\u52d9\n            \n            \/\/ \u57f7\u884c\u6578\u64da\u5eab\u64cd\u4f5c\n            \/\/ \u4f8b\u5982\uff1a\u63d2\u5165\u3001\u66f4\u65b0\u6216\u522a\u9664\u6578\u64da\n            \n            utx.commit(); \/\/ \u63d0\u4ea4\u4e8b\u52d9\n        } catch (Exception e) {\n            if (utx != null) {\n                try {\n                    utx.rollback(); \/\/ \u56de\u6efe\u4e8b\u52d9\n                } catch (Exception rollbackEx) {\n                    rollbackEx.printStackTrace();\n                }\n            }\n            e.printStackTrace();\n        }\n    }\n}\n<\/code><\/pre>\n<h3 id=\"%e4%ba%8b%e5%8b%99%e7%9a%84%e9%9a%94%e9%9b%a2%e7%b4%9a%e5%88%a5-hPmNrChkHz\">\u4e8b\u52d9\u7684\u9694\u96e2\u7d1a\u5225<\/h3>\n<p>\u5728JavaWeb\u4e2d\uff0c\u4e8b\u52d9\u7684\u9694\u96e2\u7d1a\u5225\u6c7a\u5b9a\u4e86\u4e8b\u52d9\u4e4b\u9593\u7684\u76f8\u4e92\u5f71\u97ff\u7a0b\u5ea6\u3002\u5e38\u898b\u7684\u9694\u96e2\u7d1a\u5225\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>READ_UNCOMMITTED<\/strong>\uff1a\u5141\u8a31\u8b80\u53d6\u672a\u63d0\u4ea4\u7684\u6578\u64da\u3002<\/li>\n<li><strong>READ_COMMITTED<\/strong>\uff1a\u53ea\u5141\u8a31\u8b80\u53d6\u5df2\u63d0\u4ea4\u7684\u6578\u64da\u3002<\/li>\n<li><strong>REPEATABLE_READ<\/strong>\uff1a\u5728\u540c\u4e00\u4e8b\u52d9\u4e2d\u591a\u6b21\u8b80\u53d6\u540c\u4e00\u6578\u64da\u6642\uff0c\u7d50\u679c\u662f\u4e00\u81f4\u7684\u3002<\/li>\n<li><strong>SERIALIZABLE<\/strong>\uff1a\u6700\u9ad8\u7684\u9694\u96e2\u7d1a\u5225\uff0c\u5b8c\u5168\u907f\u514d\u4e86\u4e26\u767c\u554f\u984c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e4%ba%8b%e5%8b%99%e7%ae%a1%e7%90%86%e7%9a%84%e6%9c%80%e4%bd%b3%e5%af%a6%e8%b8%90-hPmNrChkHz\">\u4e8b\u52d9\u7ba1\u7406\u7684\u6700\u4f73\u5be6\u8e10<\/h2>\n<p>\u5728JavaWeb\u958b\u767c\u4e2d\uff0c\u9075\u5faa\u4e00\u4e9b\u6700\u4f73\u5be6\u8e10\u53ef\u4ee5\u5e6b\u52a9\u63d0\u9ad8\u4e8b\u52d9\u7ba1\u7406\u7684\u6548\u7387\u548c\u53ef\u9760\u6027\uff1a<\/p>\n<ul>\n<li>\u76e1\u91cf\u7e2e\u77ed\u4e8b\u52d9\u7684\u6301\u6709\u6642\u9593\uff0c\u4ee5\u6e1b\u5c11\u9396\u7684\u7af6\u722d\u3002<\/li>\n<li>\u4f7f\u7528\u5408\u9069\u7684\u9694\u96e2\u7d1a\u5225\u4f86\u5e73\u8861\u6027\u80fd\u548c\u6578\u64da\u4e00\u81f4\u6027\u3002<\/li>\n<li>\u5728\u4e8b\u52d9\u4e2d\u907f\u514d\u9577\u6642\u9593\u7684\u8a08\u7b97\u6216\u7b49\u5f85\u64cd\u4f5c\u3002<\/li>\n<li>\u5b9a\u671f\u6aa2\u67e5\u548c\u512a\u5316\u6578\u64da\u5eab\u6027\u80fd\uff0c\u4ee5\u652f\u6301\u9ad8\u6548\u7684\u4e8b\u52d9\u8655\u7406\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-hPmNrChkHz\">\u7e3d\u7d50<\/h2>\n<p>JavaWeb\u4e2d\u7684\u4e8b\u52d9\u7ba1\u7406\u662f\u78ba\u4fdd\u6578\u64da\u4e00\u81f4\u6027\u548c\u53ef\u9760\u6027\u7684\u95dc\u9375\u3002\u901a\u904e\u7406\u89e3\u4e8b\u52d9\u7684\u57fa\u672c\u6982\u5ff5\u3001\u7ba1\u7406\u65b9\u6cd5\u53ca\u6700\u4f73\u5be6\u8e10\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u66f4\u6709\u6548\u5730\u69cb\u5efa\u7a69\u5b9a\u7684\u61c9\u7528\u7a0b\u5e8f\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u80fd\u548c\u7a69\u5b9a\u6027\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u7121\u8ad6\u662f\u9078\u64c7 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u9084\u662f\u5176\u4ed6\u985e\u578b\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a>\uff0c\u90fd\u80fd\u70ba\u60a8\u7684JavaWeb\u61c9\u7528\u63d0\u4f9b\u5f37\u5927\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6df1\u5165\u6dfa\u51faJavaWeb\uff0c\u5716\u89e3\u4e8b\u52d9\u5fc5\u6703\u5fc5\u77e5\uff0c\u8b93\u4f60\u8f15\u9b06\u638c\u63e1JavaWeb\u958b\u767c\u7684\u6838\u5fc3\u6982\u5ff5\u8207\u5be6\u7528\u6280\u5de7\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-189492","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/189492","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=189492"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/189492\/revisions"}],"predecessor-version":[{"id":189493,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/189492\/revisions\/189493"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=189492"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=189492"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=189492"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}