{"id":97086,"date":"2024-10-20T14:53:18","date_gmt":"2024-10-20T06:53:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/97086\/"},"modified":"2024-10-20T14:53:19","modified_gmt":"2024-10-20T06:53:19","slug":"p%e5%af%a6%e7%8f%be%e6%95%b8%e6%93%9a%e5%ba%ab%e5%88%86%e9%a0%81%e5%8a%9f%e8%83%bd-jsp%e5%88%86%e9%a0%81%e6%95%b8%e6%93%9a%e5%ba%ab","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/97086\/","title":{"rendered":"P\u5be6\u73fe\u6578\u64da\u5eab\u5206\u9801\u529f\u80fd (jsp\u5206\u9801\u6578\u64da\u5eab)"},"content":{"rendered":"<h1 id=\"p%e5%af%a6%e7%8f%be%e6%95%b8%e6%93%9a%e5%ba%ab%e5%88%86%e9%a0%81%e5%8a%9f%e8%83%bd-jsp%e5%88%86%e9%a0%81%e6%95%b8%e6%93%9a%e5%ba%ab-pDpeOIFQcj\">P\u5be6\u73fe\u6578\u64da\u5eab\u5206\u9801\u529f\u80fd (jsp\u5206\u9801\u6578\u64da\u5eab)<\/h1>\n<p>\u5728\u73fe\u4ee3\u7684\u7db2\u9801\u61c9\u7528\u4e2d\uff0c\u6578\u64da\u7684\u5c55\u793a\u5f80\u5f80\u9700\u8981\u8003\u616e\u5230\u7528\u6236\u9ad4\u9a57\uff0c\u5c24\u5176\u662f\u7576\u6578\u64da\u91cf\u9f90\u5927\u6642\uff0c\u5982\u4f55\u6709\u6548\u5730\u5c55\u793a\u9019\u4e9b\u6578\u64da\u6210\u70ba\u4e86\u4e00\u500b\u91cd\u8981\u7684\u8ab2\u984c\u3002\u6578\u64da\u5eab\u5206\u9801\u529f\u80fd\uff08Pagination\uff09\u4fbf\u662f\u89e3\u6c7a\u9019\u4e00\u554f\u984c\u7684\u4e00\u7a2e\u6709\u6548\u65b9\u6cd5\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u5728Java Server Pages\uff08JSP\uff09\u4e2d\u5be6\u73fe\u6578\u64da\u5eab\u5206\u9801\u529f\u80fd\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u4ee3\u78bc\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e6%95%b8%e6%93%9a%e5%ba%ab%e5%88%86%e9%a0%81%e5%8a%9f%e8%83%bd%ef%bc%9f-pDpeOIFQcj\">\u4ec0\u9ebc\u662f\u6578\u64da\u5eab\u5206\u9801\u529f\u80fd\uff1f<\/h2>\n<p>\u6578\u64da\u5eab\u5206\u9801\u529f\u80fd\u662f\u6307\u5c07\u67e5\u8a62\u7d50\u679c\u5206\u6210\u591a\u500b\u9801\u9762\uff0c\u6bcf\u9801\u986f\u793a\u4e00\u5b9a\u6578\u91cf\u7684\u6578\u64da\u3002\u9019\u6a23\u4e0d\u50c5\u80fd\u63d0\u9ad8\u9801\u9762\u7684\u52a0\u8f09\u901f\u5ea6\uff0c\u9084\u80fd\u6539\u5584\u7528\u6236\u7684\u700f\u89bd\u9ad4\u9a57\u3002\u7528\u6236\u53ef\u4ee5\u901a\u904e\u7ffb\u9801\u4f86\u67e5\u770b\u4e0d\u540c\u7684\u6578\u64da\uff0c\u800c\u4e0d\u5fc5\u4e00\u6b21\u6027\u52a0\u8f09\u6240\u6709\u6578\u64da\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e5%88%86%e9%a0%81%ef%bc%9f-pDpeOIFQcj\">\u70ba\u4ec0\u9ebc\u9700\u8981\u5206\u9801\uff1f<\/h2>\n<ul>\n<li><strong>\u6027\u80fd\u512a\u5316\uff1a<\/strong>\u7576\u6578\u64da\u91cf\u9f90\u5927\u6642\uff0c\u4e00\u6b21\u6027\u52a0\u8f09\u6240\u6709\u6578\u64da\u6703\u5c0e\u81f4\u9801\u9762\u52a0\u8f09\u7de9\u6162\uff0c\u5f71\u97ff\u7528\u6236\u9ad4\u9a57\u3002<\/li>\n<li><strong>\u6613\u65bc\u7ba1\u7406\uff1a<\/strong>\u5206\u9801\u53ef\u4ee5\u4f7f\u6578\u64da\u7684\u7ba1\u7406\u548c\u67e5\u8a62\u8b8a\u5f97\u66f4\u52a0\u7c21\u55ae\uff0c\u7279\u5225\u662f\u5728\u5f8c\u53f0\u7ba1\u7406\u7cfb\u7d71\u4e2d\u3002<\/li>\n<li><strong>\u63d0\u5347\u53ef\u8b80\u6027\uff1a<\/strong>\u5206\u9801\u80fd\u5920\u4f7f\u4fe1\u606f\u66f4\u52a0\u6e05\u6670\uff0c\u907f\u514d\u7528\u6236\u5728\u9762\u5c0d\u5927\u91cf\u6578\u64da\u6642\u611f\u5230\u56f0\u60d1\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e5%9c%a8jsp%e4%b8%ad%e5%af%a6%e7%8f%be%e6%95%b8%e6%93%9a%e5%ba%ab%e5%88%86%e9%a0%81%e5%8a%9f%e8%83%bd-pDpeOIFQcj\">\u5982\u4f55\u5728JSP\u4e2d\u5be6\u73fe\u6578\u64da\u5eab\u5206\u9801\u529f\u80fd<\/h2>\n<p>\u5728JSP\u4e2d\u5be6\u73fe\u6578\u64da\u5eab\u5206\u9801\u529f\u80fd\uff0c\u901a\u5e38\u9700\u8981\u4ee5\u4e0b\u5e7e\u500b\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e8%a8%ad%e8%a8%88%e6%95%b8%e6%93%9a%e5%ba%ab%e6%9f%a5%e8%a9%a2-pDpeOIFQcj\">1. \u8a2d\u8a08\u6578\u64da\u5eab\u67e5\u8a62<\/h3>\n<p>\u9996\u5148\uff0c\u6211\u5011\u9700\u8981\u8a2d\u8a08\u4e00\u500bSQL\u67e5\u8a62\uff0c\u9019\u500b\u67e5\u8a62\u9700\u8981\u652f\u6301\u5206\u9801\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u57fa\u672c\u7684SQL\u67e5\u8a62\u793a\u4f8b\uff1a<\/p>\n<pre><code>\nSELECT * FROM your_table\nLIMIT ? OFFSET ?;\n<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c`LIMIT`\u7528\u65bc\u9650\u5236\u6bcf\u9801\u986f\u793a\u7684\u8a18\u9304\u6578\uff0c\u800c`OFFSET`\u5247\u7528\u65bc\u6307\u5b9a\u5f9e\u54ea\u4e00\u689d\u8a18\u9304\u958b\u59cb\u986f\u793a\u3002<\/p>\n<h3 id=\"2-%e8%a8%88%e7%ae%97%e7%b8%bd%e8%a8%98%e9%8c%84%e6%95%b8-pDpeOIFQcj\">2. \u8a08\u7b97\u7e3d\u8a18\u9304\u6578<\/h3>\n<p>\u70ba\u4e86\u5be6\u73fe\u5206\u9801\uff0c\u6211\u5011\u9700\u8981\u77e5\u9053\u7e3d\u7684\u8a18\u9304\u6578\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u67e5\u8a62\u4f86\u7372\u53d6\uff1a<\/p>\n<pre><code>\nSELECT COUNT(*) FROM your_table;\n<\/code><\/pre>\n<h3 id=\"3-%e5%9c%a8jsp%e4%b8%ad%e5%af%a6%e7%8f%be%e5%88%86%e9%a0%81%e9%82%8f%e8%bc%af-pDpeOIFQcj\">3. \u5728JSP\u4e2d\u5be6\u73fe\u5206\u9801\u908f\u8f2f<\/h3>\n<p>\u63a5\u4e0b\u4f86\uff0c\u6211\u5011\u9700\u8981\u5728JSP\u4e2d\u5be6\u73fe\u5206\u9801\u908f\u8f2f\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>\n&lt;%\n    int pageSize = 10; \/\/ \u6bcf\u9801\u986f\u793a\u7684\u8a18\u9304\u6578\n    int pageNumber = Integer.parseInt(request.getParameter(&quot;page&quot;) != null ? request.getParameter(&quot;page&quot;) : &quot;1&quot;);\n    int offset = (pageNumber - 1) * pageSize;\n\n    \/\/ \u7372\u53d6\u7e3d\u8a18\u9304\u6578\n    int totalRecords = \/\/ \u57f7\u884cCOUNT\u67e5\u8a62\u7372\u53d6\u7e3d\u8a18\u9304\u6578;\n    int totalPages = (int) Math.ceil((double) totalRecords \/ pageSize);\n\n    \/\/ \u7372\u53d6\u7576\u524d\u9801\u7684\u6578\u64da\n    List dataList = \/\/ \u57f7\u884cLIMIT\u67e5\u8a62\u7372\u53d6\u7576\u524d\u9801\u7684\u6578\u64da;\n\n    request.setAttribute(\"dataList\", dataList);\n    request.setAttribute(\"totalPages\", totalPages);\n    request.setAttribute(\"currentPage\", pageNumber);\n%&gt;\n<\/code><\/pre>\n<h3 id=\"4-%e9%a1%af%e7%a4%ba%e6%95%b8%e6%93%9a%e5%92%8c%e5%88%86%e9%a0%81%e5%b0%8e%e8%88%aa-pDpeOIFQcj\">4. \u986f\u793a\u6578\u64da\u548c\u5206\u9801\u5c0e\u822a<\/h3>\n<p>\u6700\u5f8c\uff0c\u6211\u5011\u9700\u8981\u5728JSP\u9801\u9762\u4e2d\u986f\u793a\u6578\u64da\u548c\u5206\u9801\u5c0e\u822a\uff1a<\/p>\n<pre><code>\n&lt;% List dataList = (List) request.getAttribute(\"dataList\"); %&gt;\n<table>\n    <tr>\n        <th>Column1<\/th>\n        <th>Column2<\/th>\n    <\/tr>\n    \n    <tr>\n        <td><\/td>\n        <td><\/td>\n    <\/tr>\n    \n<\/table>\n\n<div>\n    &lt;%\n        int totalPages = (Integer) request.getAttribute(&quot;totalPages&quot;);\n        int currentPage = (Integer) request.getAttribute(&quot;currentPage&quot;);\n        for (int i = 1; i \n    &lt;a href=&quot;?page=\"&gt;<\/a>\n    \n<\/div>\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-pDpeOIFQcj\">\u7e3d\u7d50<\/h2>\n<p>\u6578\u64da\u5eab\u5206\u9801\u529f\u80fd\u5728\u73fe\u4ee3\u7db2\u9801\u61c9\u7528\u4e2d\u626e\u6f14\u8457\u91cd\u8981\u7684\u89d2\u8272\uff0c\u80fd\u5920\u6709\u6548\u63d0\u5347\u7528\u6236\u9ad4\u9a57\u548c\u7cfb\u7d71\u6027\u80fd\u3002\u901a\u904e\u5728JSP\u4e2d\u5be6\u73fe\u5206\u9801\u908f\u8f2f\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u8f15\u9b06\u5730\u7ba1\u7406\u548c\u5c55\u793a\u5927\u91cf\u6578\u64da\u3002\u82e5\u60a8\u9700\u8981\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u512a\u5316\u60a8\u7684\u61c9\u7528\uff0c\u6216\u5c0b\u627e\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u7d22\u5982\u4f55\u5728JSP\u4e2d\u5be6\u73fe\u6578\u64da\u5eab\u5206\u9801\u529f\u80fd\uff0c\u63d0\u5347\u6578\u64da\u986f\u793a\u6548\u7387\uff0c\u512a\u5316\u7528\u6236\u9ad4\u9a57\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-97086","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/97086","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=97086"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/97086\/revisions"}],"predecessor-version":[{"id":97087,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/97086\/revisions\/97087"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=97086"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=97086"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=97086"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}