{"id":16560,"date":"2024-03-15T13:12:55","date_gmt":"2024-03-15T13:12:55","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-to-implement-data-filtering-after-using-pagehelper-for-pagination\/"},"modified":"2025-08-07T03:59:09","modified_gmt":"2025-08-07T03:59:09","slug":"how-to-implement-data-filtering-after-using-pagehelper-for-pagination","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-to-implement-data-filtering-after-using-pagehelper-for-pagination\/","title":{"rendered":"How to implement data filtering after using pagehelper &#8230;"},"content":{"rendered":"<p>After paginating the data with PageHelper, you can utilize the following method for filtering the data.<\/p>\n<p>Firstly, make sure that the PageHelper dependency has been added and configured accordingly.<\/p>\n<p>In the method of querying data, use the PageHelper.startPage() method to enable pagination and pass in the current page number and the number of records to display per page.<\/p>\n<p>3. Execute a query to retrieve the paginated data.<\/p>\n<p>4. To filter and process the retrieved data, you can use Java 8&#8217;s Stream API for filtering, or utilize other filtering methods.<\/p>\n<p>Return the filtered data.<\/p>\n<p>The sample code is provided below:<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-meta\">@Service<\/span>\r\n<span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">UserServiceImpl<\/span> <span class=\"hljs-keyword\">implements<\/span> <span class=\"hljs-title class_\">UserService<\/span> {\r\n\r\n    <span class=\"hljs-meta\">@Autowired<\/span>\r\n    <span class=\"hljs-keyword\">private<\/span> UserMapper userMapper;\r\n\r\n    <span class=\"hljs-meta\">@Override<\/span>\r\n    <span class=\"hljs-keyword\">public<\/span> List&lt;User&gt; <span class=\"hljs-title function_\">getUsersByPageAndFilter<\/span><span class=\"hljs-params\">(<span class=\"hljs-type\">int<\/span> pageNum, <span class=\"hljs-type\">int<\/span> pageSize, String keyword)<\/span> {\r\n        <span class=\"hljs-comment\">\/\/ \u5f00\u542f\u5206\u9875\u529f\u80fd<\/span>\r\n        PageHelper.startPage(pageNum, pageSize);\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u6267\u884c\u67e5\u8be2\u64cd\u4f5c\uff0c\u83b7\u53d6\u5206\u9875\u540e\u7684\u6570\u636e<\/span>\r\n        List&lt;User&gt; userList = userMapper.getUsers();\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u4f7f\u7528Java8\u7684Stream\u6d41\u8fdb\u884c\u7b5b\u9009<\/span>\r\n        List&lt;User&gt; filteredList = userList.stream()\r\n                .filter(user -&gt; user.getName().contains(keyword))\r\n                .collect(Collectors.toList());\r\n\r\n        <span class=\"hljs-comment\">\/\/ \u8fd4\u56de\u7b5b\u9009\u540e\u7684\u6570\u636e<\/span>\r\n        <span class=\"hljs-keyword\">return<\/span> filteredList;\r\n    }\r\n}\r\n<\/code><\/pre>\n<p>The getUsersByPageAndFilter() method in the above code takes a pageNum parameter to represent the current page number, a pageSize parameter to indicate the number of records displayed per page, and a keyword parameter for filtering purposes.<\/p>\n<p>Initially, the PageHelper.startPage() method is called to enable pagination in the process. Next, the query operation is executed to fetch the paginated data. Subsequently, Java8&#8217;s Stream is used to filter the retrieved data based on the condition that the user name contains the keyword. Finally, the filtered data is returned.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>After paginating the data with PageHelper, you can utilize the following method for filtering the data. Firstly, make sure that the PageHelper dependency has been added and configured accordingly. In the method of querying data, use the PageHelper.startPage() method to enable pagination and pass in the current page number and the number of records to [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[453,1402,299,1404,1403],"class_list":["post-16560","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-development","tag-guide","tag-programming","tag-technology","tag-tutorial"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to implement data filtering after using pagehelper ... - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Learn about how to implement data filtering after using pagehelper for pagination?. 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