{"id":39127,"date":"2024-11-26T14:14:17","date_gmt":"2024-11-26T06:14:17","guid":{"rendered":"https:\/\/fwq.ai\/blog\/39127\/"},"modified":"2024-11-26T14:14:17","modified_gmt":"2024-11-26T06:14:17","slug":"java%e6%95%b0%e7%bb%84%e6%80%8e%e4%b9%88%e8%bf%bd%e5%8a%a0%e6%95%b0%e6%8d%ae%e5%ba%93","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/39127\/","title":{"rendered":"java\u6570\u7ec4\u600e\u4e48\u8ffd\u52a0\u6570\u636e\u5e93"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\u5411\u6570\u636e\u5e93\u8ffd\u52a0\u6570\u7ec4\u7684\u65b9\u6cd5\uff1a\u4f7f\u7528 sql \u67e5\u8be2\u4e2d\u7684 array \u51fd\u6570\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a sql \u6570\u7ec4\uff0c\u7136\u540e\u63d2\u5165\u6570\u636e\u5e93\u3002\u4f7f\u7528 jdbc api\u4e2d\u7684 setarray \u65b9\u6cd5\u8bbe\u7f6e\u6570\u7ec4\u53c2\u6570\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/16\/2024111604201340656.jpg\" class=\"aligncenter\" title=\"java\u6570\u7ec4\u600e\u4e48\u8ffd\u52a0\u6570\u636e\u5e93\u63d2\u56fe\" alt=\"java\u6570\u7ec4\u600e\u4e48\u8ffd\u52a0\u6570\u636e\u5e93\u63d2\u56fe\" \/><\/p>\n<p><strong>Java \u4e2d\u5411\u6570\u636e\u5e93\u8ffd\u52a0\u6570\u7ec4<\/strong><\/p>\n<p>\u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7 SQL \u67e5\u8be2\u6216 JDBC API \u5411\u6570\u636e\u5e93\u8ffd\u52a0\u6570\u7ec4\u3002<\/p>\n<p><strong>\u4f7f\u7528 SQL \u67e5\u8be2<\/strong><\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528 ARRAY \u51fd\u6570\u5c06 Java \u6570\u7ec4\u8f6c\u6362\u4e3a SQL \u6570\u7ec4\uff0c\u7136\u540e\u5c06\u5176\u63d2\u5165\u6570\u636e\u5e93\u3002\u4f8b\u5982\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>-- \u521b\u5efa\u4e00\u4e2a\u540d\u4e3a \"numbers\" \u7684\u8868\uff0c\u5176\u4e2d\u6709\u4e00\u5217 \"numbers\" \u7c7b\u578b\u4e3a integer[]\nCREATE TABLE numbers (numbers INTEGER[]);\n\n-- \u63d2\u5165\u4e00\u4e2a\u5305\u542b [1, 2, 3] \u6570\u7ec4\u7684\u8bb0\u5f55\nINSERT INTO numbers (numbers) VALUES (ARRAY[1, 2, 3]);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f7f\u7528 JDBC API<\/strong><\/p>\n<p>JDBC PreparedStatement \u63d0\u4f9b\u4e86 setArray \u65b9\u6cd5\u6765\u8bbe\u7f6e\u6570\u7ec4\u53c2\u6570\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>\/\/ \u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a SQL \u6570\u7ec4\u5bf9\u8c61\nArray sqlArray = connection.createArrayOf(\"INTEGER\", new int[] {1, 2, 3});\n\n\/\/ \u521b\u5efa PreparedStatement\nString sql = \"INSERT INTO numbers (numbers) VALUES (?)\";\nPreparedStatement statement = connection.prepareStatement(sql);\n\n\/\/ \u8bbe\u7f6e\u6570\u7ec4\u53c2\u6570\nstatement.setArray(1, sqlArray);\n\n\/\/ \u6267\u884c\u67e5\u8be2\nstatement.executeUpdate();<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u6ce8\u610f\uff1a<\/strong><\/p>\n<ul>\n<li>\u4f7f\u7528 SQL \u67e5\u8be2\u65f6\uff0c\u9700\u8981\u786e\u4fdd\u6570\u636e\u5e93\u652f\u6301\u6570\u7ec4\u7c7b\u578b\u3002<\/li>\n<li>\u4e0d\u540c\u7684\u6570\u636e\u5e93\u7cfb\u7edf\u53ef\u80fd\u8981\u6c42\u4f7f\u7528\u4e0d\u540c\u7684\u8bed\u6cd5\u6216\u65b9\u6cd5\u6765\u8ffd\u52a0\u6570\u7ec4\u3002\u8bf7\u67e5\u9605\u7279\u5b9a\u6570\u636e\u5e93\u7684\u6587\u6863\u4ee5\u83b7\u53d6\u66f4\u591a\u8be6\u7ec6\u4fe1\u606f\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u6570\u7ec4\u600e\u4e48\u8ffd\u52a0\u6570\u636e\u5e93\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 java \u4e2d\u5411\u6570\u636e\u5e93\u8ffd\u52a0\u6570\u7ec4\u7684\u65b9\u6cd5\uff1a\u4f7f\u7528 sql \u67e5\u8be2\u4e2d\u7684 array \u51fd\u6570\u5c06\u6570\u7ec4\u8f6c\u6362\u4e3a sql \u6570\u7ec4\uff0c\u7136\u540e\u63d2\u5165\u6570\u636e\u5e93\u3002\u4f7f\u7528 jdbc api\u4e2d\u7684 setarray \u65b9\u6cd5\u8bbe\u7f6e\u6570\u7ec4\u53c2\u6570\u3002 Java \u4e2d\u5411\u6570\u636e\u5e93\u8ffd\u52a0\u6570\u7ec4 \u5728 Java \u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7 SQL \u67e5\u8be2\u6216 JDBC API \u5411\u6570\u636e\u5e93\u8ffd\u52a0\u6570\u7ec4\u3002 \u4f7f\u7528 SQL \u67e5\u8be2 \u53ef\u4ee5\u4f7f\u7528 ARRAY \u51fd\u6570\u5c06 Java \u6570\u7ec4\u8f6c\u6362\u4e3a SQL \u6570\u7ec4\uff0c\u7136\u540e\u5c06\u5176\u63d2\u5165\u6570\u636e\u5e93\u3002\u4f8b\u5982\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b &#8212; \u521b\u5efa\u4e00\u4e2a\u540d\u4e3a &#8220;numbers&#8221; \u7684\u8868\uff0c\u5176\u4e2d\u6709\u4e00\u5217 &#8220;numbers&#8221; \u7c7b\u578b\u4e3a integer[] CREATE TABLE numbers (numbers INTEGER[]); &#8212; \u63d2\u5165\u4e00\u4e2a\u5305\u542b [1, 2, 3] \u6570\u7ec4\u7684\u8bb0\u5f55 INSERT INTO numbers [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-39127","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/39127","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=39127"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/39127\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=39127"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=39127"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=39127"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}