{"type":"rich","description":"Java1.4\u304b\u3089\u3042\u3063\u305f\u3089\u3057\u3044\u304c\u3001\u4ed5\u4e8b\u3067\u306flog4j\u3070\u304b\u308a\u306a\u306e\u3067\u4f7f\u3046\u6a5f\u4f1a\u304c\u306a\u304b\u3063\u305f\u3002 import java.io.IOException; import java.util.logging.FileHandler; import java.util.logging.Level; import java.util.logging.Logger; import java.util.logging.SimpleFormatter; public class LoggingTest { public static void main(String[] args) { FileHandler hand\u2026","provider_name":"Hatena Blog","blog_title":"\u6280\u8853\u30e1\u30e2\u306e\u304b\u3051\u3089","width":"100%","author_name":"eichisanden","version":"1.0","height":"190","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Feichisanden.hateblo.jp%2Fentry%2F2012%2F03%2F19%2F222456\" title=\"java.util.logging\u30d1\u30c3\u30b1\u30fc\u30b8 - \u6280\u8853\u30e1\u30e2\u306e\u304b\u3051\u3089\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_url":"https://eichisanden.hateblo.jp/","title":"java.util.logging\u30d1\u30c3\u30b1\u30fc\u30b8","author_url":"https://blog.hatena.ne.jp/eichisanden/","provider_url":"https://hatena.blog","published":"2012-03-19 22:24:56","categories":["Java"],"url":"https://eichisanden.hateblo.jp/entry/2012/03/19/222456","image_url":null}