{"id":6867,"date":"2013-02-13T23:41:40","date_gmt":"2013-02-13T14:41:40","guid":{"rendered":"http:\/\/arison.jp\/blog\/?p=6867"},"modified":"2017-07-14T02:10:29","modified_gmt":"2017-07-13T17:10:29","slug":"defaultstring","status":"publish","type":"post","link":"https:\/\/arison.jp\/blog\/2013\/02\/13\/defaultstring\/","title":{"rendered":"\u3010Java\u3011\u6587\u5b57\u5217\u306e\u521d\u671f\u5024\u3092\u8a2d\u5b9a\u3059\u308b"},"content":{"rendered":"<p>\u6587\u5b57\u5217\u306e\u521d\u671f\u5024<br \/>\nnull\u3084\u7a7a\u6587\u5b57\u3092\u521d\u671f\u5024\u306b\u3057\u305f\u3044\u6642\u3002<\/p>\n<p>defaultString<br \/>\n\u5909\u63db\u5bfe\u8c61\u306e\u6587\u5b57\u5217\u304cNULL\u306e\u5834\u5408\u3001\u7a7a\u6587\u5b57\u306b\u5909\u63db\u3059\u308b\u3002<\/p>\n<p>defaultIfEmpty<br \/>\n\u5909\u63db\u5bfe\u8c61\u306e\u6587\u5b57\u5217\u304cNULL\u3001\u307e\u305f\u306f\u7a7a\u6587\u5b57\u306e\u5834\u5408\u3001\u6307\u5b9a\u3055\u308c\u305f\u521d\u671f\u5024\u306b\u5909\u63db\u3059\u308b\u3002<\/p>\n<p><!--more--><\/p>\n<h3>defaultString<\/h3>\n<p>public static java.lang.String defaultString(java.lang.String str)<br \/>\n<span class=\"font20px\">\u5909\u63db\u5bfe\u8c61\u306e\u6587\u5b57\u5217\u304cNULL\u306e\u5834\u5408\u3001\u7a7a\u6587\u5b57\u306b\u5909\u63db\u3059\u308b\u3002<\/span><br \/>\n\u30d1\u30e9\u30e1\u30fc\u30bf: str \u2013 \u5909\u63db\u5bfe\u8c61\u306e\u6587\u5b57\u5217<br \/>\n\u623b\u308a\u5024: \u5909\u63db\u5bfe\u8c61\u306e\u6587\u5b57\u5217\u304cNULL\u306e\u5834\u5408\u306f\u7a7a\u6587\u5b57\u3001\u305d\u3046\u3067\u306a\u3044\u5834\u5408\u306f\u5909\u63db\u5bfe\u8c61\u306e\u6587\u5b57\u5217\u306e\u307e\u307e<\/p>\n<p>[java]<br \/>\nString test1 = StringUtils.defaultString(null)<br \/>\nString test2 = StringUtils.defaultString(&quot;&quot;)<br \/>\nString test3 = StringUtils.defaultString(&quot;hoge&quot;)<\/p>\n<p>test1 = &quot;&quot;<br \/>\ntest2 = &quot;&quot;<br \/>\ntest3 = &quot;hoge&quot;<br \/>\n[\/java]<\/p>\n<p>\u521d\u671f\u5024\u3092\u8a2d\u5b9a\u3067\u304d\u308b\u3002<br \/>\npublic static java.lang.String defaultString(java.lang.String str, java.lang.String defaultStr)<\/p>\n<hr \/>\n<h3>defaultIfEmpty<\/h3>\n<p>public static java.lang.String defaultIfEmpty(java.lang.String str, java.lang.String defaultStr)<br \/>\n<span class=\"font20px\">\u5909\u63db\u5bfe\u8c61\u306e\u6587\u5b57\u5217\u304cNULL\u3001\u307e\u305f\u306f\u7a7a\u6587\u5b57\u306e\u5834\u5408\u3001\u6307\u5b9a\u3055\u308c\u305f\u521d\u671f\u5024\u306b\u5909\u63db\u3059\u308b\u3002<\/span><br \/>\n\u30d1\u30e9\u30e1\u30fc\u30bf: str \u2013 \u5909\u63db\u5bfe\u8c61\u306e\u6587\u5b57\u5217 defaultStr \u2013 \u521d\u671f\u5024<br \/>\n\u623b\u308a\u5024: \u5909\u63db\u5bfe\u8c61\u306e\u6587\u5b57\u5217\u304cNULL\u3001\u307e\u305f\u306f\u7a7a\u6587\u5b57\u306e\u5834\u5408\u306f\u6307\u5b9a\u3055\u308c\u305f\u521d\u671f\u5024\u3001\u305d\u3046\u3067\u306a\u3044\u5834\u5408\u306f\u5909\u63db\u5bfe\u8c61\u306e\u6587\u5b57\u5217\u306e\u307e\u307e<\/p>\n<p>[java]<br \/>\nString test1 = StringUtils.defaultIfEmpty(null, &quot;fuga&quot;)<br \/>\nString test2 = StringUtils.defaultIfEmpty(&quot;&quot;, &quot;fuga&quot;)<br \/>\nString test3 = StringUtils.defaultIfEmpty(&quot;hoge&quot;, &quot;fuga&quot;)<\/p>\n<p>test1 = &quot;fuga&quot;<br \/>\ntest2 = &quot;fuga&quot;<br \/>\ntest3 = &quot;hoge&quot;<br \/>\n[\/java]<br \/>\n\u3010\u53c2\u8003\u30b5\u30a4\u30c8\u3011<br \/>\nApache Commons Lang \u2013 StringUtils\uff08DefaultString\uff09  TK Factory<br \/>\n<a href=\"http:\/\/tk-factory.net\/wordpress\/?p=1455\" title=\"Apache Commons Lang \u2013 StringUtils\uff08DefaultString\uff09  TK Factory\">http:\/\/tk-factory.net\/wordpress\/?p=1455<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u5b57\u5217\u306e\u521d\u671f\u5024 null\u3084\u7a7a\u6587\u5b57\u3092\u521d\u671f\u5024\u306b\u3057\u305f\u3044\u6642\u3002 defaultString \u5909\u63db\u5bfe\u8c61\u306e\u6587\u5b57\u5217\u304cNULL\u306e\u5834\u5408\u3001\u7a7a\u6587\u5b57\u306b\u5909\u63db\u3059\u308b\u3002 defaultIfEmpty \u5909\u63db\u5bfe\u8c61\u306e\u6587\u5b57\u5217\u304cNULL\u3001\u307e\u305f\u306f\u7a7a\u6587\u5b57\u306e\u5834\u5408\u3001\u6307\u5b9a\u3055 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":17178,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6,4],"tags":[703],"class_list":["post-6867","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-programming","category-diary","tag-java"],"_links":{"self":[{"href":"https:\/\/arison.jp\/blog\/wp-json\/wp\/v2\/posts\/6867","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/arison.jp\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/arison.jp\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/arison.jp\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/arison.jp\/blog\/wp-json\/wp\/v2\/comments?post=6867"}],"version-history":[{"count":0,"href":"https:\/\/arison.jp\/blog\/wp-json\/wp\/v2\/posts\/6867\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/arison.jp\/blog\/wp-json\/wp\/v2\/media\/17178"}],"wp:attachment":[{"href":"https:\/\/arison.jp\/blog\/wp-json\/wp\/v2\/media?parent=6867"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/arison.jp\/blog\/wp-json\/wp\/v2\/categories?post=6867"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/arison.jp\/blog\/wp-json\/wp\/v2\/tags?post=6867"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}