{"id":6193,"date":"2024-03-14T17:12:52","date_gmt":"2024-03-14T08:12:52","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7poi%e3%82%92%e4%bd%bf%e7%94%a8%e3%81%97%e3%81%a6%e3%82%bb%e3%83%ab%e3%82%92%e7%b5%90%e5%90%88%e3%81%97%e3%80%81%e5%86%85%e5%ae%b9%e3%82%92%e4%b8%ad%e5%a4%ae%e3%81%ab%e8%a8%ad%e5%ae%9a\/"},"modified":"2025-08-03T07:44:46","modified_gmt":"2025-08-02T22:44:46","slug":"java%e3%81%a7poi%e3%82%92%e4%bd%bf%e7%94%a8%e3%81%97%e3%81%a6%e3%82%bb%e3%83%ab%e3%82%92%e7%b5%90%e5%90%88%e3%81%97%e3%80%81%e5%86%85%e5%ae%b9%e3%82%92%e4%b8%ad%e5%a4%ae%e3%81%ab%e8%a8%ad%e5%ae%9a","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/java%e3%81%a7poi%e3%82%92%e4%bd%bf%e7%94%a8%e3%81%97%e3%81%a6%e3%82%bb%e3%83%ab%e3%82%92%e7%b5%90%e5%90%88%e3%81%97%e3%80%81%e5%86%85%e5%ae%b9%e3%82%92%e4%b8%ad%e5%a4%ae%e3%81%ab%e8%a8%ad%e5%ae%9a\/","title":{"rendered":"Java POI: \u30bb\u30eb\u7d50\u5408\u3068\u4e2d\u592e\u63c3\u3048\u306e\u8a2d\u5b9a\u65b9\u6cd5"},"content":{"rendered":"<p>Apache POI\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f7f\u7528\u3057\u3066Excel\u30d5\u30a1\u30a4\u30eb\u3092\u64cd\u4f5c\u3057\u3001\u30bb\u30eb\u306e\u7d50\u5408\u3068\u5185\u5bb9\u306e\u4e2d\u592e\u63c3\u3048\u3092\u5b9f\u73fe\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u7c21\u5358\u306a\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u3059\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"hljs-keyword\">import<\/span> org.apache.poi.ss.usermodel.*;\r\n<span class=\"hljs-keyword\">import<\/span> org.apache.poi.xssf.usermodel.XSSFWorkbook;\r\n\r\n<span class=\"hljs-keyword\">import<\/span> java.io.FileOutputStream;\r\n<span class=\"hljs-keyword\">import<\/span> java.io.IOException;\r\n\r\n<span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title class_\">MergeCellsExample<\/span> {\r\n\r\n    <span class=\"hljs-keyword\">public<\/span> <span class=\"hljs-keyword\">static<\/span> <span class=\"hljs-keyword\">void<\/span> <span class=\"hljs-title function_\">main<\/span><span class=\"hljs-params\">(String[] args)<\/span> {\r\n        <span class=\"hljs-keyword\">try<\/span> (<span class=\"hljs-type\">Workbook<\/span> <span class=\"hljs-variable\">workbook<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">XSSFWorkbook<\/span>()) {\r\n            <span class=\"hljs-type\">Sheet<\/span> <span class=\"hljs-variable\">sheet<\/span> <span class=\"hljs-operator\">=<\/span> workbook.createSheet(<span class=\"hljs-string\">\"Sheet1\"<\/span>);\r\n\r\n            <span class=\"hljs-type\">Row<\/span> <span class=\"hljs-variable\">row<\/span> <span class=\"hljs-operator\">=<\/span> sheet.createRow(<span class=\"hljs-number\">0<\/span>);\r\n            <span class=\"hljs-type\">Cell<\/span> <span class=\"hljs-variable\">cell<\/span> <span class=\"hljs-operator\">=<\/span> row.createCell(<span class=\"hljs-number\">0<\/span>);\r\n            cell.setCellValue(<span class=\"hljs-string\">\"Merged Cell\"<\/span>);\r\n            <span class=\"hljs-type\">CellStyle<\/span> <span class=\"hljs-variable\">style<\/span> <span class=\"hljs-operator\">=<\/span> workbook.createCellStyle();\r\n            style.setAlignment(HorizontalAlignment.CENTER);\r\n            style.setVerticalAlignment(VerticalAlignment.CENTER);\r\n            cell.setCellStyle(style);\r\n\r\n            sheet.addMergedRegion(<span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">CellRangeAddress<\/span>(<span class=\"hljs-number\">0<\/span>, <span class=\"hljs-number\">0<\/span>, <span class=\"hljs-number\">0<\/span>, <span class=\"hljs-number\">5<\/span>));\r\n\r\n            <span class=\"hljs-keyword\">try<\/span> (<span class=\"hljs-type\">FileOutputStream<\/span> <span class=\"hljs-variable\">fileOut<\/span> <span class=\"hljs-operator\">=<\/span> <span class=\"hljs-keyword\">new<\/span> <span class=\"hljs-title class_\">FileOutputStream<\/span>(<span class=\"hljs-string\">\"workbook.xlsx\"<\/span>)) {\r\n                workbook.write(fileOut);\r\n            }\r\n        } <span class=\"hljs-keyword\">catch<\/span> (IOException e) {\r\n            e.printStackTrace();\r\n        }\r\n    }\r\n}\r\n<\/code><\/pre>\n<p>\u3053\u306e\u4f8b\u3067\u306f\u3001\u307e\u305a\u65b0\u3057\u3044Workbook\u3068Sheet\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3057\u3001\u6b21\u306b\u65b0\u3057\u3044Row\u3068Cell\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3057\u3066\u3001\u30bb\u30eb\u306e\u5024\u3092\u300c\u30de\u30fc\u30b8\u3055\u308c\u305f\u30bb\u30eb\u300d\u3068\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u305d\u306e\u5f8c\u3001CellStyle\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3057\u3066\u3001\u30bb\u30eb\u306e\u5185\u5bb9\u3092\u6c34\u5e73\u304a\u3088\u3073\u5782\u76f4\u4e2d\u592e\u306b\u8a2d\u5b9a\u3057\u307e\u3059\u3002\u305d\u306e\u5f8c\u3001addMergedRegion\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3057\u3066\u30bb\u30eb\u3092\u7d50\u5408\u3057\u3001\u6700\u5f8c\u306bWorkbook\u3092\u30d5\u30a1\u30a4\u30eb\u306b\u66f8\u304d\u8fbc\u307f\u307e\u3059\u3002<\/p>\n<p>Excel\u30d5\u30a1\u30a4\u30eb\u5185\u3067\u30bb\u30eb\u3092\u7d50\u5408\u3057\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u4e2d\u592e\u63c3\u3048\u306b\u8a2d\u5b9a\u3059\u308b\u64cd\u4f5c\u304c\u5b8c\u4e86\u3057\u307e\u3057\u305f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Apache POI\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f7f\u7528\u3057\u3066Excel\u30d5\u30a1\u30a4\u30eb\u3092\u64cd\u4f5c\u3057\u3001\u30bb\u30eb\u306e\u7d50\u5408\u3068\u5185\u5bb9\u306e\u4e2d\u592e\u63c3\u3048\u3092\u5b9f\u73fe\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u7c21\u5358\u306a\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u3059\uff1a import org.apache.poi.ss.usermode [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[360,42,1733,1734,1394],"class_list":["post-6193","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-excel","tag-java","tag-poi","tag-1734","tag-1394"],"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>Java POI: 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