{"id":64635,"date":"2025-05-03T17:47:08","date_gmt":"2025-05-03T09:47:08","guid":{"rendered":"https:\/\/fwq.ai\/blog\/64635\/"},"modified":"2025-05-03T17:47:08","modified_gmt":"2025-05-03T09:47:08","slug":"java%e4%b8%ad%e6%80%8e%e4%b9%88%e5%b0%86%e6%95%b0%e7%bb%84%e5%ad%98%e5%85%a5%e6%95%b0%e6%8d%ae%e5%ba%93-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/64635\/","title":{"rendered":"Java\u4e2d\u600e\u4e48\u5c06\u6570\u7ec4\u5b58\u5165\u6570\u636e\u5e93"},"content":{"rendered":"<blockquote><p>\n  \u8981\u5c06\u6570\u7ec4\u5b58\u5165 java \u6570\u636e\u5e93\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e24\u79cd\u65b9\u6cd5\uff1a\u4f7f\u7528 postgresql \u6570\u7ec4\u7c7b\u578b\uff1a\u521b\u5efa\u6570\u7ec4\u7c7b\u578b\u3001\u5728\u6570\u636e\u5e93\u8868\u4e2d\u521b\u5efa\u5217\uff0c\u4f7f\u7528 pgarray \u5bf9\u8c61\u63d2\u5165\u6570\u7ec4\u3002\u4f7f\u7528 jdbc \u5bf9\u8c61\u6570\u7ec4\uff1a\u5728\u6570\u636e\u5e93\u8868\u4e2d\u521b\u5efa\u5217\u3001\u4f7f\u7528 jdbc \u5bf9\u8c61\u6570\u7ec4\u63d2\u5165\u5143\u7d20\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/04\/2024110404334434062.jpg\" class=\"aligncenter\" title=\"Java\u4e2d\u600e\u4e48\u5c06\u6570\u7ec4\u5b58\u5165\u6570\u636e\u5e93\u63d2\u56fe\" alt=\"Java\u4e2d\u600e\u4e48\u5c06\u6570\u7ec4\u5b58\u5165\u6570\u636e\u5e93\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5c06\u6570\u7ec4\u5b58\u5165 Java \u6570\u636e\u5e93<\/strong><\/p>\n<p>\u8981\u5c06\u6570\u7ec4\u5b58\u5165 Java \u6570\u636e\u5e93\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a<\/p>\n<p><strong>1. \u4f7f\u7528 PostgreSQL \u6570\u7ec4\u7c7b\u578b<\/strong><\/p>\n<p>PostgreSQL \u63d0\u4f9b\u4e86\u539f\u751f\u6570\u7ec4\u7c7b\u578b\uff0c\u53ef\u4ee5\u5b58\u50a8\u7279\u5b9a\u5143\u7d20\u7c7b\u578b\u7684\u4e00\u7ec4\u503c\u3002\u8981\u4f7f\u7528\u6570\u7ec4\u7c7b\u578b\uff0c\u8bf7\u6267\u884c\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<ul>\n<li>\n<p>\u521b\u5efa\u4e00\u4e2a\u6570\u7ec4\u7c7b\u578b\uff1a<\/p>\n<pre>CREATE TYPE my_array AS INTEGER[]<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/li>\n<li>\n<p>\u5728\u6570\u636e\u5e93\u8868\u4e2d\u521b\u5efa\u4e00\u5217\u6765\u5b58\u50a8\u6570\u7ec4\uff1a<\/p>\n<pre>CREATE TABLE my_table (\nid SERIAL PRIMARY KEY,\narray_column my_array\n)<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/li>\n<li>\n<p>\u5c06\u6570\u7ec4\u63d2\u5165\u8868\u4e2d\uff1a<\/p>\n<pre>import org.postgresql.jdbc.PgArray;\n\n...\n\n\/\/ JDBC \u8fde\u63a5\nConnection conn = DriverManager.getConnection(connectionString);\n\n\/\/ \u521b\u5efa PgArray \u5bf9\u8c61\nPgArray myArray = conn.createArrayOf(\"my_array\", new int[] { 1, 2, 3 });\n\n\/\/ \u51c6\u5907\u8bed\u53e5\nPreparedStatement stmt = conn.prepareStatement(\"INSERT INTO my_table (array_column) VALUES (?)\");\n\n\/\/ \u8bbe\u7f6e\u6570\u7ec4\u53c2\u6570\nstmt.setArray(1, myArray);\n\n\/\/ \u6267\u884c\u67e5\u8be2\nstmt.executeUpdate();<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/li>\n<\/ul>\n<p><strong>2. \u4f7f\u7528 JDBC \u5bf9\u8c61\u6570\u7ec4<\/strong><\/p>\n<p>\u5982\u679c\u6570\u636e\u5e93\u4e0d\u652f\u6301\u539f\u751f\u6570\u7ec4\u7c7b\u578b\uff0c\u53ef\u4ee5\u4f7f\u7528 JDBC \u5bf9\u8c61\u6570\u7ec4\u4f5c\u4e3a\u4e00\u79cd\u53d8\u901a\u65b9\u6cd5\u3002<\/p>\n<ul>\n<li>\n<p>\u5728\u6570\u636e\u5e93\u8868\u4e2d\u521b\u5efa\u4e00\u7ec4\u5217\u6765\u5b58\u50a8\u6570\u7ec4\u5143\u7d20\uff1a<\/p>\n<pre>CREATE TABLE my_table (\nid SERIAL PRIMARY KEY,\nelem1 INTEGER,\nelem2 INTEGER,\nelem3 INTEGER\n)<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/li>\n<li>\n<p>\u4f7f\u7528 JDBC \u5bf9\u8c61\u6570\u7ec4\u63d2\u5165\u5143\u7d20\uff1a<\/p>\n<pre>\/\/ JDBC \u8fde\u63a5\nConnection conn = DriverManager.getConnection(connectionString);\n\n\/\/ \u521b\u5efa JDBC \u5bf9\u8c61\u6570\u7ec4\nObject[] arrayElements = { 1, 2, 3 };\n\n\/\/ \u51c6\u5907\u8bed\u53e5\nPreparedStatement stmt = conn.prepareStatement(\"INSERT INTO my_table (elem1, elem2, elem3) VALUES (?, ?, ?)\");\n\n\/\/ \u8bbe\u7f6e\u6570\u7ec4\u5143\u7d20\u7684\u53c2\u6570\nfor (int i = 1; i &lt;= arrayElements.length; i++) {\nstmt.setObject(i, arrayElements[i - 1]);\n}\n\n\/\/ \u6267\u884c\u67e5\u8be2\nstmt.executeUpdate();<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fJava\u4e2d\u600e\u4e48\u5c06\u6570\u7ec4\u5b58\u5165\u6570\u636e\u5e93\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8981\u5c06\u6570\u7ec4\u5b58\u5165 java \u6570\u636e\u5e93\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e24\u79cd\u65b9\u6cd5\uff1a\u4f7f\u7528 postgresql \u6570\u7ec4\u7c7b\u578b\uff1a\u521b\u5efa\u6570\u7ec4\u7c7b\u578b\u3001\u5728\u6570\u636e\u5e93\u8868\u4e2d\u521b\u5efa\u5217\uff0c\u4f7f\u7528 pgarray \u5bf9\u8c61\u63d2\u5165\u6570\u7ec4\u3002\u4f7f\u7528 jdbc \u5bf9\u8c61\u6570\u7ec4\uff1a\u5728\u6570\u636e\u5e93\u8868\u4e2d\u521b\u5efa\u5217\u3001\u4f7f\u7528 jdbc \u5bf9\u8c61\u6570\u7ec4\u63d2\u5165\u5143\u7d20\u3002 \u5982\u4f55\u5c06\u6570\u7ec4\u5b58\u5165 Java \u6570\u636e\u5e93 \u8981\u5c06\u6570\u7ec4\u5b58\u5165 Java \u6570\u636e\u5e93\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\uff1a 1. \u4f7f\u7528 PostgreSQL \u6570\u7ec4\u7c7b\u578b PostgreSQL \u63d0\u4f9b\u4e86\u539f\u751f\u6570\u7ec4\u7c7b\u578b\uff0c\u53ef\u4ee5\u5b58\u50a8\u7279\u5b9a\u5143\u7d20\u7c7b\u578b\u7684\u4e00\u7ec4\u503c\u3002\u8981\u4f7f\u7528\u6570\u7ec4\u7c7b\u578b\uff0c\u8bf7\u6267\u884c\u4ee5\u4e0b\u6b65\u9aa4\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u521b\u5efa\u4e00\u4e2a\u6570\u7ec4\u7c7b\u578b\uff1a CREATE TYPE my_array AS INTEGER[] \u767b\u5f55\u540e\u590d\u5236 \u5728\u6570\u636e\u5e93\u8868\u4e2d\u521b\u5efa\u4e00\u5217\u6765\u5b58\u50a8\u6570\u7ec4\uff1a CREATE TABLE my_table ( id SERIAL PRIMARY KEY, array_column my_array ) \u767b\u5f55\u540e\u590d\u5236 \u5c06\u6570\u7ec4\u63d2\u5165\u8868\u4e2d\uff1a import org.postgresql.jdbc.PgArray; &#8230; \/\/ JDBC \u8fde\u63a5 Connection conn = DriverManager.getConnection(connectionString); [&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-64635","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/64635","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=64635"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/64635\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=64635"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=64635"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=64635"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}