{"id":304,"date":"2005-05-19T13:00:13","date_gmt":"2005-05-19T04:00:13","guid":{"rendered":"http:\/\/www.javable.jp\/blog\/?p=304"},"modified":"2012-04-13T12:39:56","modified_gmt":"2012-04-13T03:39:56","slug":"beanutils-%e3%81%a7-javabeans-%e3%81%ae%e3%83%97%e3%83%ad%e3%83%91%e3%83%86%e3%82%a3%e3%82%92%e4%b8%80%e6%b0%97%e3%81%ab%e3%82%b3%e3%83%94%e3%83%bc%e3%81%99%e3%82%8b","status":"publish","type":"post","link":"https:\/\/www.javable.jp\/blog\/304.html","title":{"rendered":"BeanUtils \u3067 JavaBeans \u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u4e00\u6c17\u306b\u30b3\u30d4\u30fc\u3059\u308b"},"content":{"rendered":"

\r\n\tWeb \u30a2\u30d7\u30ea\u306a\u3093\u304b\u3092\u4f5c\u3063\u3066\u3044\u308b\u3068\u3001\u3088\u304f DB \u5074\u306e\u30b5\u30fc\u30d3\u30b9\u5c64\u304b\u3089\u53d6\u5f97\u3057\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\r\n\tWeb \u5c64\u5074\u306e\u30d5\u30a9\u30fc\u30e0Bean \u306b\u5909\u63db\u3057\u3066\u4f7f\u7528\u3057\u305f\u308a\u3001\u307e\u305f\u305d\u306e\u9006\u3092\u884c\u3063\u305f\u308a\u3068\u3044\u3046\u4e8b\u3092\u3088\u304f\u3084\u308a\u307e\u3059\u3002\r\n\t\u3053\u3093\u306a\u611f\u3058\u3067\u3059\u306d\u2193\r\n<\/p>\r\n

\r\nSimpleDateFormate sdf = new SimpleDateFormat(\"yyyy\/MM\/dd HH:mm:ss\");\r\n\r\n\/\/ \u30b5\u30fc\u30d3\u30b9\u30af\u30e9\u30b9\u304b\u3089 id \u3092\u30ad\u30fc\u306b\u3057\u3066 UserModel \u3092\u53d6\u5f97<\/span>\r\nUserModel model = userService.getUser(id);\r\n\r\n\/\/ \u30d5\u30a9\u30fc\u30e0Bean\u3092\u4f5c\u6210\u3057\u3066\u3001\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\uff11\u3064\uff11\u3064\u30b3\u30d4\u30fc<\/span>\r\nUserForm form = new UserForm();\r\nform.setName(model.getName());\r\nform.setLoginDate(sdf.format(model.getLoginDate()));\r\n\r\n...\r\n<\/pre>\r\n
\r\nUserForm \u3082 UserModel \u3082\u540c\u3058\u540d\u524d\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\uff08name, loginDate\uff09\u3092\u6301\u3063\u3066\u3044\u308b\u306e\u3067\u3059\u304c\u3001\r\nUserForm \u30af\u30e9\u30b9\u306f Web\u5c64\u3067\u4f7f\u7528\u3059\u308b\u30d5\u30a9\u30fc\u30e0Bean \u306e\u70ba\u3001\r\n\u5168\u3066\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u304c\r\n\r\nString \u3067\u69cb\u6210 (\u203b)<\/a>\r\n\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u4e00\u65b9\u3001 UserModel \u30af\u30e9\u30b9\u306f\u30c9\u30e1\u30a4\u30f3\u30e2\u30c7\u30eb\u3067\u3042\u308a\u3001\r\n\u305d\u306e\u307e\u307e DB \u3068\u3082\u5bfe\u5fdc\u3057\u305f\u308a\u3057\u3066\u3044\u308b\u70ba\u3001\u305d\u308c\u305e\u308c\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u304c\u9069\u5207\u306a\u578b\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002\r\n<\/p>\r\n\r\n
\u203bStruts \u306a\u3093\u304b\u3067\u306f String \u306e\u4ed6\u306b boolean \u3082\u4f7f\u3063\u3066\u826f\u3044\u3088\u3001\u3068Struts\u306e\u8a2d\u8a08\u8005\u306f\u8a00\u3063\u3066\u307e\u3059\u304c\u2026\u3001\u306a\u305c boolean \u306fOK\u306a\u306e\u304b\u3001\u610f\u5473\u4e0d\u660e\u3067\u3059\u3002\u5168\u90e8String\u306b\u3057\u3061\u307e\u3048\uff5e\u3068\u3044\u3046\u306e\u306a\u3089\u5206\u304b\u308a\u307e\u3059\u304c\u3002\u3002[\u623b\u308b<\/a>]<\/div>\r\n
\r\n\u3053\u306e\u4f8b\u306e\u3088\u3046\u306b\u30d7\u30ed\u30d1\u30c6\u30a3\u304c\uff12\u3064\u3050\u3089\u3044\u306a\u3089\u5927\u3057\u305f\u624b\u9593\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\r\n\u5927\u304d\u306a\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u306a\u308b\u3068\u30d7\u30ed\u30d1\u30c6\u30a3\u306f\uff11\uff10\u500b\u306b\u3082\uff12\uff10\u500b\u306b\u3082\u306a\u308a\u307e\u3059\u3002\r\n\u305d\u308c\u3092\u4e0a\u8a18\u306e\u4f8b\u306e\u3088\u3046\u306b\uff11\u3064\uff11\u3064\u30b3\u30d4\u30fc\u3057\u3066\u3044\u308b\u3068\u3001\r\n\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u66f8\u304f\u4e0a\u3067\u30df\u30b9\u304c\u751f\u3058\u308b\u53ef\u80fd\u6027\u3082\u9ad8\u304f\u306a\u308a\u307e\u3059\u3057\u3001\r\n\u53ef\u8aad\u6027\u3082\u4e0b\u304c\u308a\u307e\u3059\u3002\u4f55\u3088\u308a\u3081\u3093\u3069\u304f\u3055\u3044\u3067\u3059\u2026\r\n<\/p>\r\n
\r\n\u305d\u3093\u306a\u6642\u306b\u4fbf\u5229\u306a\u306e\u304c\u3001\r\n\r\nJakarta Commons<\/a>\r\n\u306e\r\n\r\nBeanUtils<\/a>\r\n\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u3059\u3002BeanUtils \u306f Struts \u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u526f\u7523\u7269\u3068\u3057\u3066\u751f\u307e\u308c\u305f\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3067\u3059\u304c\u3001\r\n\u3053\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f7f\u3046\u3068\u3001\u4e0b\u8a18\u306e\u3088\u3046\u306b\u30b3\u30fc\u30c9\u304c\u3059\u3063\u304d\u308a\u3057\u307e\u3059\u3002\r\n<\/p>\r\n
\r\n\/\/ \u30b5\u30fc\u30d3\u30b9\u30af\u30e9\u30b9\u304b\u3089 id \u3092\u30ad\u30fc\u306b\u3057\u3066 UserModel \u3092\u53d6\u5f97<\/span>\r\nUserModel model = userService.getUser(id);\r\n\r\n\/\/ \u30d5\u30a9\u30fc\u30e0Bean\u3092\u4f5c\u6210\u3057\u3066\u3001BeanUtils \u3067\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u30b3\u30d4\u30fc<\/span>\r\nUserForm form = new UserForm();\r\nBeanUtils.copyProperties(form, model);<\/strong>\r\n...\r\n<\/pre>\r\n
\r\n\u672c\u5f53\u306b\u30b3\u30d4\u30fc\u3055\u308c\u3066\u3044\u308b\u306e\u304b\u3069\u3046\u304b\u3001\r\n\u4e0b\u8a18\u306e\u3088\u3046\u306a\u30d7\u30ed\u30b0\u30e9\u30e0[\r\n\r\n\u30b5\u30f3\u30d7\u30eb\u30bd\u30fc\u30b9<\/a>\r\n]\u3092\u4f5c\u6210\u3057\u3066\u8a66\u3057\u3066\u307f\u307e\u3057\u305f\u3002\r\n<\/p>\r\n
\r\n-+-+-+-+-+-+-+-+-+-+-\r\nUserModel.java\r\n-+-+-+-+-+-+-+-+-+-+-\r\npackage jp.javable.sample.beanutils;\r\n\r\nimport java.io.Serializable;\r\nimport java.util.Date;\r\n\r\npublic class UserModel implements Serializable {\r\n    private String name;\r\n    private Date loginDate;\r\n    public String getName() {\r\n        return name;\r\n    }\r\n    public void setName(String name) {\r\n        this.name = name;\r\n    }\r\n    public Date getLoginDate() {\r\n        return loginDate;\r\n    }\r\n    public void setLoginDate(Date loginDate) {\r\n        this.loginDate = loginDate;\r\n    }\r\n}\r\n-+-+-+-+-+-+-+-+-+-+-\r\nUserForm.java\r\n-+-+-+-+-+-+-+-+-+-+-\r\npackage jp.javable.sample.beanutils;\r\n\r\nimport java.io.Serializable;\r\n\r\npublic class UserForm implements Serializable {\r\n    private String name;\r\n    private String loginDate;\r\n    public String getName() {\r\n        return name;\r\n    }\r\n    public void setName(String name) {\r\n        this.name = name;\r\n    }\r\n    public String getLoginDate() {\r\n        return loginDate;\r\n    }\r\n    public void setLoginDate(String loginDate) {\r\n        this.loginDate = loginDate;\r\n    }\r\n    public String toString() {\r\n        return this.getClass().getName() + \"@\"\r\n         + Long.toHexString(System.identityHashCode(this))\r\n         + \"[name=\" + this.getName() \r\n         + \",loginDate=\" + this.getLoginDate() + \"]\";\r\n    }\r\n}\r\n-+-+-+-+-+-+-+-+-+-+-\r\nMain.java\r\n-+-+-+-+-+-+-+-+-+-+-\r\npackage jp.javable.sample.beanutils;\r\n\r\nimport org.apache.commons.beanutils.BeanUtils;\r\n\r\npublic class Main {\r\n\r\n    public static void main(String[] args) throws Exception {\r\n        UserModel model = new UserModel();\r\n        model.setName(\"\u6e9d\u53e3\");\r\n        model.setLoginDate(new java.util.Date());\r\n\r\n        UserForm form = new UserForm();\r\n        \/\/ \u9593\u9055\u3048\u3084\u3059\u3044\u3067\u3059\u304c\u3001\u3053\u306e\u30e1\u30bd\u30c3\u30c9\u306f\u53f3\u304b\u3089\u5de6<\/strong>\uff08\u7b2c\uff12\u5f15\u6570\u304b\u3089\u7b2c\uff11\u5f15\u6570\uff09\u306b\u30b3\u30d4\u30fc\u3057\u307e\u3059<\/span>\r\n        BeanUtils.copyProperties(form, model);<\/strong>\r\n\r\n        System.out.println(form);\r\n    }\r\n}\r\n<\/pre>\r\n
\r\n\u5b9f\u884c\u3057\u3066\u307f\u307e\u3059\u3002\r\n<\/p>\r\n
\r\nD:\\eclipse_workspace\\test> java -classpath bin;lib\\commons-beanutils.jar;\r\nlib\\commons-collections.jar;\r\nlib\\commons-logging.jar jp.javable.sample.beanutils.Main\r\n\uff08\u2191\u5b9f\u969b\u306b\u306f\u3059\u3079\u3066\uff11\u884c\u3067\u3059\uff09<\/span>\r\n\r\njp.javable.sample.beanutils.UserForm@1027b4d[name=\u6e9d\u53e3,\r\n            loginDate=Thu May 19 23:02:18 JST 2005]\r\n<\/pre>\r\n
\r\n\u3061\u3083\u3093\u3068\u30b3\u30d4\u30fc\u3055\u308c\u307e\u3057\u305f\uff01\r\n\u3057\u304b\u3057\u3001\u6700\u521d\u306e\u4f8b\u3067\u306f loginDate \u306f yyyy\/MM\/dd HH:mm:ss \u5f62\u5f0f\u306e\u6587\u5b57\u5217\u306b\u3057\u3066\u3044\u305f\u306e\u3067\u3059\u304c\u3001\r\n\u3053\u306e\u30b1\u30fc\u30b9\u3067\u306f java.util.Date#toString() \u306e\u7d50\u679c\u304c\u305d\u306e\u307e\u307e\u683c\u7d0d\u3055\u308c\u3066\u3044\u307e\u3059\u3002\r\n\u3053\u306e\u307e\u307e\u3067\u306f\u4f7f\u3048\u307e\u305b\u3093\u3002\r\n\u3053\u308c\u3092\u4f55\u3068\u304b\u3059\u308b\u65b9\u6cd5\u306f\u3001\r\n\r\nBeanUtils \u3067\u72ec\u81ea\u306e\u30b3\u30f3\u30d0\u30fc\u30bf\u30fc\u3092\u4f7f\u7528\u3059\u308b<\/a>\r\n\u306b\u66f8\u304d\u307e\u3059\u3002\r\n<\/p>\r\n
\r\n\u3061\u306a\u307f\u306b\u4e0a\u8a18\u306e\u5b9f\u884c\u4f8b\u3067\u3082\u5206\u304b\u308a\u307e\u3059\u304c\u3001\r\nBeanUtils \u306f\r\n\r\nCommons Collection<\/a>\r\n\u3068\r\n\r\nCommons Logging<\/a>\r\n\u3092\u5185\u90e8\u3067\u4f7f\u7528\u3057\u3066\u3044\u308b\u306e\u3067\u3001\r\n\u5b9f\u884c\u6642\u306b\u306f\u4e0a\u8a18\r\n\r\n\uff12\u3064\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u304c\u5fc5\u8981 (\u203b)<\/a>\u3068\u306a\u308a\u307e\u3059\u3002\r\n<\/p>\r\n
\r\n\u203b\r\nBeanUtils \u306e\u30d0\u30fc\u30b8\u30e7\u30f3 1.7 \u304b\u3089\u306f\u3001\u4f7f\u7528\u3057\u3066\u3044\u308b Commons Collections \u306e\u30af\u30e9\u30b9\u304c\u4e00\u90e8\u540c\u68b1\u3055\u308c\u3066\u3044\u308b\u3088\u3046\u3067\u3059\u3002\r\n1.7 \u4ee5\u964d\u306f Commons Logging(1.0.3\u4ee5\u4e0a)\u304c\u3042\u308c\u3070 OK \u3067\u3059\u3002[\u623b\u308b<\/a>]\r\n<\/div>\r\n","protected":false},"excerpt":{"rendered":"Web \u30a2\u30d7\u30ea\u306a\u3093\u304b\u3092\u4f5c\u3063\u3066\u3044\u308b\u3068\u3001\u3088\u304f DB \u5074\u306e\u30b5\u30fc\u30d3\u30b9\u5c64\u304b\u3089\u53d6\u5f97\u3057\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092 Web \u5c64\u5074\u306e\u30d5\u30a9\u30fc\u30e0Bean \u306b\u5909\u63db\u3057\u3066\u4f7f\u7528\u3057\u305f\u308a\u3001\u307e\u305f\u305d\u306e\u9006\u3092\u884c\u3063\u305f\u308a\u3068\u3044\u3046\u4e8b\u3092\u3088\u304f\u3084\u308a\u307e\u3059\u3002","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-304","post","type-post","status-publish","format-standard","hentry","category-programming"],"_links":{"self":[{"href":"https:\/\/www.javable.jp\/blog\/wp-json\/wp\/v2\/posts\/304","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.javable.jp\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.javable.jp\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.javable.jp\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.javable.jp\/blog\/wp-json\/wp\/v2\/comments?post=304"}],"version-history":[{"count":15,"href":"https:\/\/www.javable.jp\/blog\/wp-json\/wp\/v2\/posts\/304\/revisions"}],"predecessor-version":[{"id":385,"href":"https:\/\/www.javable.jp\/blog\/wp-json\/wp\/v2\/posts\/304\/revisions\/385"}],"wp:attachment":[{"href":"https:\/\/www.javable.jp\/blog\/wp-json\/wp\/v2\/media?parent=304"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.javable.jp\/blog\/wp-json\/wp\/v2\/categories?post=304"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.javable.jp\/blog\/wp-json\/wp\/v2\/tags?post=304"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}