{"id":947,"date":"2023-03-22T08:48:49","date_gmt":"2022-08-24T05:47:08","guid":{"rendered":"https:\/\/www.silicloud.com\/ja\/blog\/index.php\/2023\/11\/30\/%e5%88%9d%e5%bf%83%e8%80%85%e5%90%91%e3%81%91%e3%81%aejava%e3%82%a6%e3%82%a7%e3%83%96%e3%82%a2%e3%83%97%e3%83%aa%e3%82%b1%e3%83%bc%e3%82%b7%e3%83%a7%e3%83%b3%e3%83%81%e3%83%a5%e3%83%bc%e3%83%88\/"},"modified":"2025-08-01T03:45:30","modified_gmt":"2025-07-31T18:45:30","slug":"%e5%88%9d%e5%bf%83%e8%80%85%e5%90%91%e3%81%91%e3%81%aejava%e3%82%a6%e3%82%a7%e3%83%96%e3%82%a2%e3%83%97%e3%83%aa%e3%82%b1%e3%83%bc%e3%82%b7%e3%83%a7%e3%83%b3%e3%83%81%e3%83%a5%e3%83%bc%e3%83%88","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/ja\/blog\/%e5%88%9d%e5%bf%83%e8%80%85%e5%90%91%e3%81%91%e3%81%aejava%e3%82%a6%e3%82%a7%e3%83%96%e3%82%a2%e3%83%97%e3%83%aa%e3%82%b1%e3%83%bc%e3%82%b7%e3%83%a7%e3%83%b3%e3%83%81%e3%83%a5%e3%83%bc%e3%83%88\/","title":{"rendered":"\u521d\u5fc3\u8005\u5411\u3051\u306eJava\u30a6\u30a7\u30d6\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb"},"content":{"rendered":"<p>Java\u306eWeb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306f\u3001\u52d5\u7684\u306a\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3092\u4f5c\u6210\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002Java\u306f\u3001Servlet\u3068JSP\u3092\u901a\u3058\u3066Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3078\u306e\u30b5\u30dd\u30fc\u30c8\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u9759\u7684\u306aHTML\u30da\u30fc\u30b8\u3067\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u3059\u304c\u3001\u60c5\u5831\u3092\u52d5\u7684\u306b\u3059\u308b\u5834\u5408\u306f\u3001\u30a6\u30a7\u30d6\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<h2>Java\u306e\u30a6\u30a7\u30d6\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3<\/h2>\n<p>\u3053\u306e\u8a18\u4e8b\u306e\u76ee\u7684\u306f\u3001Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u7570\u306a\u308b\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u57fa\u672c\u7684\u306a\u8a73\u7d30\u3068\u3001Servlet\u3068JSP\u3092\u4f7f\u7528\u3057\u3066\u6700\u521d\u306eJava Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u4f5c\u6210\u3059\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u63d0\u4f9b\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u30fc\u3068\u30af\u30e9\u30a4\u30a2\u30f3\u30c8<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>HTML\u3068HTTP<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>URL\u306e\u7406\u89e3<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u306a\u305cServlet\u3068JSP\u304c\u5fc5\u8981\u306a\u306e\u304b\uff1f<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>Servlet\u3068JSP\u3092\u4f7f\u3063\u305f\u6700\u521d\u306e\u30a6\u30a7\u30d6\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u30a6\u30a7\u30d6\u30b3\u30f3\u30c6\u30ca<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u30a6\u30a7\u30d6\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u69cb\u9020<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\u30c7\u30d7\u30ed\u30a4\u30e1\u30f3\u30c8\u8a18\u8ff0\u5b50<\/ol>\n<h3>\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u30fc\u3068\u30af\u30e9\u30a4\u30a2\u30f3\u30c8<\/h3>\n<p>\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u30fc\u306f\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u51e6\u7406\u3057\u3001\u305d\u306e\u5fdc\u7b54\u3092\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u9001\u4fe1\u3059\u308b\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001Apache\u306f\u6700\u3082\u5e83\u304f\u4f7f\u308f\u308c\u3066\u3044\u308b\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u30fc\u306e\u4e00\u3064\u3067\u3059\u3002\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u30fc\u306f\u7269\u7406\u7684\u306a\u30de\u30b7\u30f3\u4e0a\u3067\u52d5\u4f5c\u3057\u3001\u7279\u5b9a\u306e\u30dd\u30fc\u30c8\u3067\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u5f85\u3061\u53d7\u3051\u307e\u3059\u3002\u30a6\u30a7\u30d6\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f\u3001\u30b5\u30fc\u30d0\u30fc\u3068\u306e\u901a\u4fe1\u3092\u652f\u63f4\u3059\u308b\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3067\u3059\u3002Firefox\u3001Google Chrome\u3001Safari\u306a\u3069\u304c\u6700\u3082\u5e83\u304f\u4f7f\u308f\u308c\u3066\u3044\u308b\u30a6\u30a7\u30d6\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u4f8b\u3067\u3059\u3002\u79c1\u305f\u3061\u304c\u30b5\u30fc\u30d0\u30fc\u306b\u4f55\u304b\u3092\u8981\u6c42\u3059\u308b\u3068\uff08URL\u7d4c\u7531\u3067\uff09\u3001\u30a6\u30a7\u30d6\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u4f5c\u6210\u3057\u3001\u30b5\u30fc\u30d0\u30fc\u306b\u9001\u4fe1\u3057\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u5fdc\u7b54\u3092\u89e3\u6790\u3057\u3066\u30e6\u30fc\u30b6\u30fc\u306b\u8868\u793a\u3057\u307e\u3059\u3002<\/p>\n<h3>HTML\u3068HTTP<\/h3>\n<p>\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u30fc\u3068\u30a6\u30a7\u30d6\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f2\u3064\u5225\u3005\u306e\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3067\u3059\u306e\u3067\u3001\u901a\u4fe1\u306e\u305f\u3081\u306b\u306f\u5171\u901a\u306e\u8a00\u8a9e\u304c\u5fc5\u8981\u3067\u3059\u3002HTML\u306f\u30b5\u30fc\u30d0\u30fc\u3068\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u9593\u3067\u4f7f\u308f\u308c\u308b\u5171\u901a\u306e\u8a00\u8a9e\u3067\u3042\u308a\u3001HyperText Markup Language\u306e\u7565\u3067\u3059\u3002\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u30fc\u3068\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f\u5171\u901a\u306e\u901a\u4fe1\u30d7\u30ed\u30c8\u30b3\u30eb\u304c\u5fc5\u8981\u3067\u3042\u308a\u3001HTTP\uff08HyperText Transfer Protocol\uff09\u304c\u30b5\u30fc\u30d0\u30fc\u3068\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306e\u9593\u3067\u306e\u901a\u4fe1\u30d7\u30ed\u30c8\u30b3\u30eb\u3067\u3059\u3002HTTP\u306fTCP\/IP\u901a\u4fe1\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u4e0a\u3067\u52d5\u4f5c\u3057\u307e\u3059\u3002HTTP\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u91cd\u8981\u306a\u90e8\u5206\u306b\u4ee5\u4e0b\u306e\u3082\u306e\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n<ul class=\"post-ul\">\n<li>HTTP Method &#8211; action to be performed, usually GET, POST, PUT etc.<\/li>\n<li>URL &#8211; Page to access<\/li>\n<li>Form Parameters &#8211; similar to arguments in a java method, for example user,password details from login page.<\/li>\n<\/ul>\n<p>\u30b5\u30f3\u30d7\u30eb\u306eHTTP\u30ea\u30af\u30a8\u30b9\u30c8\uff1a<\/p>\n<pre class=\"post-pre\"><code>GET \/FirstServletProject\/jsps\/hello.jsp HTTP\/1.1\r\nHost: localhost:8080\r\nCache-Control: no-cache\r\n<\/code><\/pre>\n<p>HTTP\u30ec\u30b9\u30dd\u30f3\u30b9\u306e\u91cd\u8981\u306a\u8981\u7d20\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u3082\u306e\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul class=\"post-ul\">\n<li>Status Code &#8211; an integer to indicate whether the request was success or not. Some of the well known status codes are 200 for success, 404 for Not Found and 403 for Access Forbidden.<\/li>\n<li>Content Type &#8211; text, html, image, pdf etc. Also known as MIME type<\/li>\n<li>Content &#8211; actual data that is rendered by client and shown to user.<\/li>\n<\/ul>\n<p>\u30b5\u30f3\u30d7\u30eb\u306eHTTP\u30ec\u30b9\u30dd\u30f3\u30b9:<\/p>\n<pre class=\"post-pre\"><code>200 OK\r\nDate: Wed, 07 Aug 2013 19:55:50 GMT\r\nServer: Apache-Coyote\/1.1\r\nContent-Length: 309\r\nContent-Type: text\/html;charset=US-ASCII\r\n\r\n&lt;!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD HTML 4.01 Transitional\/\/EN\" \"https:\/\/www.w3.org\/TR\/html4\/loose.dtd\"&gt;\r\n&lt;html&gt;\r\n&lt;head&gt;\r\n&lt;meta http-equiv=\"Content-Type\" content=\"text\/html; charset=US-ASCII\"&gt;\r\n&lt;title&gt;Hello&lt;\/title&gt;\r\n&lt;\/head&gt;\r\n&lt;body&gt;\r\n&lt;h2&gt;Hi There!&lt;\/h2&gt;\r\n&lt;br&gt;\r\n&lt;h3&gt;Date=Wed Aug 07 12:57:55 PDT 2013\r\n&lt;\/h3&gt;\r\n&lt;\/body&gt;\r\n&lt;\/html&gt;\r\n<\/code><\/pre>\n<p>MIME\u30bf\u30a4\u30d7\u307e\u305f\u306f\u30b3\u30f3\u30c6\u30f3\u30c4\u30bf\u30a4\u30d7\uff1a\u4e0a\u8a18\u306e\u30b5\u30f3\u30d7\u30ebHTTP\u5fdc\u7b54\u30d8\u30c3\u30c0\u30fc\u3092\u898b\u308b\u3068\u3001\u300cContent-Type\u300d\u3068\u3044\u3046\u30bf\u30b0\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306fMIME\u30bf\u30a4\u30d7\u3068\u3082\u547c\u3070\u308c\u3001\u30b5\u30fc\u30d0\u30fc\u306f\u3053\u308c\u3092\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u9001\u4fe1\u3057\u3066\u3001\u9001\u4fe1\u3059\u308b\u30c7\u30fc\u30bf\u306e\u7a2e\u985e\u3092\u77e5\u3089\u305b\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306f\u30c7\u30fc\u30bf\u3092\u30e6\u30fc\u30b6\u30fc\u306b\u8868\u793a\u3059\u308b\u969b\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u6700\u3082\u3088\u304f\u4f7f\u7528\u3055\u308c\u308bMIME\u30bf\u30a4\u30d7\u306b\u306f\u3001text\/html\u3001text\/xml\u3001application\/xml\u306a\u3069\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>URL\u3092\u7406\u89e3\u3059\u308b<\/h3>\n<p>URL\u306fUniversal Resource Locator\u306e\u982d\u6587\u5b57\u3067\u3042\u308a\u3001\u30b5\u30fc\u30d0\u30fc\u3068\u30ea\u30bd\u30fc\u30b9\u306e\u5834\u6240\u3092\u7279\u5b9a\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u30a6\u30a7\u30d6\u4e0a\u306e\u3059\u3079\u3066\u306e\u30ea\u30bd\u30fc\u30b9\u306b\u306f\u72ec\u81ea\u306e\u30a2\u30c9\u30ec\u30b9\u304c\u3042\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306bURL\u306e\u4e00\u90e8\u3092\u4f8b\u3068\u5171\u306b\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002https:\/\/localhost:8080\/FirstServletProject\/jsps\/hello.jsp https:\/\/ &#8211; \u3053\u308c\u306fURL\u306e\u6700\u521d\u306e\u90e8\u5206\u3067\u3042\u308a\u3001\u30b5\u30fc\u30d0\u30fc\u3068\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u9593\u306e\u901a\u4fe1\u306b\u4f7f\u7528\u3055\u308c\u308b\u901a\u4fe1\u30d7\u30ed\u30c8\u30b3\u30eb\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002localhost &#8211; \u30b5\u30fc\u30d0\u30fc\u306e\u30e6\u30cb\u30fc\u30af\u306a\u30a2\u30c9\u30ec\u30b9\u3067\u3042\u308a\u3001\u307b\u3068\u3093\u3069\u306e\u5834\u5408\u3001\u30db\u30b9\u30c8\u540d\u3092\u4e00\u610f\u306eIP\u30a2\u30c9\u30ec\u30b9\u306b\u30de\u30c3\u30d7\u3059\u308b\u3082\u306e\u3067\u3059\u3002\u8907\u6570\u306e\u30db\u30b9\u30c8\u540d\u304c\u540c\u3058IP\u30a2\u30c9\u30ec\u30b9\u3092\u6307\u3059\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u304c\u3001\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u30fc\u306e\u4eee\u60f3\u30db\u30b9\u30c8\u304c\u7279\u5b9a\u306e\u30b5\u30fc\u30d0\u30fc\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306b\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u9001\u4fe1\u3057\u307e\u3059\u30028080 &#8211; \u30b5\u30fc\u30d0\u30fc\u304c\u30ea\u30c3\u30b9\u30f3\u3057\u3066\u3044\u308b\u30dd\u30fc\u30c8\u756a\u53f7\u3067\u3042\u308a\u3001\u30aa\u30d7\u30b7\u30e7\u30f3\u3067\u3059\u3002URL\u3067\u6307\u5b9a\u3057\u306a\u3044\u5834\u5408\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u306f\u30d7\u30ed\u30c8\u30b3\u30eb\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u30dd\u30fc\u30c8\u306b\u9001\u4fe1\u3055\u308c\u307e\u3059\u3002\u30dd\u30fc\u30c8\u756a\u53f70\u304b\u30891023\u307e\u3067\u306f\u3001\u3088\u304f\u77e5\u3089\u308c\u305f\u30b5\u30fc\u30d3\u30b9\u7528\u306b\u4e88\u7d04\u3055\u308c\u305f\u30dd\u30fc\u30c8\u3067\u3059\u3002\u305f\u3068\u3048\u3070\u3001HTTP\u306e80\u3001HTTPS\u306e443\u3001FTP\u306e21\u306a\u3069\u3067\u3059\u3002FirstServletProject\/jsps\/hello.jsp &#8211; \u30b5\u30fc\u30d0\u30fc\u304b\u3089\u8981\u6c42\u3055\u308c\u305f\u30ea\u30bd\u30fc\u30b9\u3067\u3059\u3002\u9759\u7684\u306aHTML\u3001PDF\u3001JSP\u3001\u30b5\u30fc\u30d6\u30ec\u30c3\u30c8\u3001PHP\u306a\u3069\u304c\u542b\u307e\u308c\u307e\u3059\u3002<\/p>\n<h3>\u306a\u305c\u79c1\u305f\u3061\u306fServlet\u3068JSP\u304c\u5fc5\u8981\u306a\u306e\u3067\u3059\u304b\uff1f<\/h3>\n<p>\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u306f\u9759\u7684\u306a\u30b3\u30f3\u30c6\u30f3\u30c4\u306eHTML\u30da\u30fc\u30b8\u306b\u9069\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u52d5\u7684\u306a\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u751f\u6210\u3057\u305f\u308a\u3001\u30c7\u30fc\u30bf\u3092\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u4fdd\u5b58\u3059\u308b\u65b9\u6cd5\u3092\u77e5\u308a\u307e\u305b\u3093\u3002\u305d\u306e\u305f\u3081\u3001\u52d5\u7684\u306a\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u751f\u6210\u3059\u308b\u305f\u3081\u306b\u5225\u306e\u30c4\u30fc\u30eb\u304c\u5fc5\u8981\u3067\u3059\u3002PHP\u3001Python\u3001Ruby on Rails\u3001Java Servlets\u3001JSP\u306a\u3069\u3001\u3044\u304f\u3064\u304b\u306e\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u304c\u3042\u308a\u307e\u3059\u3002Java Servlet\u3068JSP\u306f\u3001\u52d5\u7684\u306a\u5fdc\u7b54\u3068\u30c7\u30fc\u30bf\u306e\u6c38\u7d9a\u5316\u306e\u30b5\u30dd\u30fc\u30c8\u3092\u63d0\u4f9b\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u306e\u6a5f\u80fd\u3092\u62e1\u5f35\u3059\u308b\u305f\u3081\u306e\u30b5\u30fc\u30d0\u30fc\u30b5\u30a4\u30c9\u306e\u6280\u8853\u3067\u3059\u3002<\/p>\n<h2>Java\u306eWeb\u958b\u767a<\/h2>\n<h3>\u6700\u521d\u306eWeb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306fServlet\u3068JSP\u3092\u4f7f\u7528\u3057\u305f\u3082\u306e\u3067\u3059\u3002<\/h3>\n<p>\u6700\u521d\u306e\u30b5\u30fc\u30d6\u30ec\u30c3\u30c8\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u4f5c\u6210\u3059\u308b\u305f\u3081\u306b\u3001\u300cEclipse IDE for Java EE Developers\u300d\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u30b5\u30fc\u30d6\u30ec\u30c3\u30c8\u306f\u30b5\u30fc\u30d0\u30fc\u30b5\u30a4\u30c9\u306e\u6280\u8853\u3067\u3042\u308b\u305f\u3081\u3001Servlet\u30c6\u30af\u30ce\u30ed\u30b8\u30fc\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308bWeb\u30b3\u30f3\u30c6\u30ca\u304c\u5fc5\u8981\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001Apache Tomcat\u30b5\u30fc\u30d0\u30fc\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u8a2d\u5b9a\u306f\u975e\u5e38\u306b\u7c21\u5358\u3067\u3001\u305d\u306e\u90e8\u5206\u306f\u81ea\u5206\u3067\u884c\u3063\u3066\u304f\u3060\u3055\u3044\u3002\u958b\u767a\u306e\u7c21\u4fbf\u3055\u306e\u305f\u3081\u306b\u3001Tomcat\u3092Eclipse\u3067\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30c7\u30d7\u30ed\u30a4\u3068\u5b9f\u884c\u304c\u5bb9\u6613\u306b\u306a\u308a\u307e\u3059\u3002Eclipse\u306e\u8a2d\u5b9a\u3067\u300cServer Runtime Environments\u300d\u3092\u9078\u629e\u3057\u3001Tomcat\u30b5\u30fc\u30d0\u30fc\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3092\u9078\u629e\u3057\u307e\u3059\u3002\u79c1\u306e\u5834\u5408\u306fTomcat 7\u3067\u3059\u3002Apache Tomcat\u306e\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u5834\u6240\u3068JRE\u60c5\u5831\u3092\u63d0\u4f9b\u3057\u3066\u30e9\u30f3\u30bf\u30a4\u30e0\u74b0\u5883\u3092\u8ffd\u52a0\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u305d\u308c\u304b\u3089\u300cServers\u300d\u30d3\u30e5\u30fc\u306b\u79fb\u52d5\u3057\u3001\u4e0a\u8a18\u3067\u8ffd\u52a0\u3057\u305f\u30e9\u30f3\u30bf\u30a4\u30e0\u74b0\u5883\u3092\u6307\u3059\u3088\u3046\u306b\u4ee5\u4e0b\u306e\u753b\u50cf\u306e\u3088\u3046\u306b\u65b0\u3057\u3044\u30b5\u30fc\u30d0\u30fc\u3092\u4f5c\u6210\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u6ce8\uff1a\u3082\u3057\u300cServers\u300d\u30bf\u30d6\u304c\u8868\u793a\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u306f\u3001Window &gt; Show View &gt; Servers \u3092\u9078\u629e\u3057\u3066Eclipse\u30a6\u30a3\u30f3\u30c9\u30a6\u3067\u8868\u793a\u3055\u308c\u308b\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30b5\u30fc\u30d0\u30fc\u304c\u6b63\u5e38\u306b\u52d5\u4f5c\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306b\u3001\u30b5\u30fc\u30d0\u30fc\u306e\u505c\u6b62\u3068\u958b\u59cb\u3092\u8a66\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002\u65e2\u306b\u30bf\u30fc\u30df\u30ca\u30eb\u304b\u3089\u30b5\u30fc\u30d0\u30fc\u3092\u8d77\u52d5\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u30bf\u30fc\u30df\u30ca\u30eb\u304b\u3089\u505c\u6b62\u3057\u3001\u305d\u306e\u5f8cEclipse\u304b\u3089\u8d77\u52d5\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u305d\u3046\u3057\u306a\u3044\u3068\u6b63\u5e38\u306b\u52d5\u4f5c\u3057\u307e\u305b\u3093\u3002\u3053\u308c\u3067\u3001\u30b5\u30fc\u30d6\u30ec\u30c3\u30c8\u3092\u4f5c\u6210\u3057\u3001Tomcat\u30b5\u30fc\u30d0\u30fc\u3067\u5b9f\u884c\u3059\u308b\u305f\u3081\u306e\u6e96\u5099\u304c\u6574\u3044\u307e\u3057\u305f\u3002File &gt; New &gt; Dynamic Web Project \u3092\u9078\u629e\u3057\u3001\u4ee5\u4e0b\u306e\u753b\u50cf\u306e\u3088\u3046\u306b\u30e9\u30f3\u30bf\u30a4\u30e0\u3092\u5148\u307b\u3069\u8ffd\u52a0\u3057\u305f\u30b5\u30fc\u30d0\u30fc\u306b\u8a2d\u5b9a\u3057\u3001\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u30923.0\u306b\u3057\u3066Servlet 3.0\u306e\u4ed5\u69d8\u3092\u4f7f\u7528\u3057\u3066\u30b5\u30fc\u30d6\u30ec\u30c3\u30c8\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3059\u308b\u306b\u306fFinish\u30dc\u30bf\u30f3\u3092\u76f4\u63a5\u30af\u30ea\u30c3\u30af\u3059\u308b\u304b\u3001\u4ed6\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306bNext\u30dc\u30bf\u30f3\u3092\u30af\u30ea\u30c3\u30af\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002\u6b21\u306b\u3001File &gt; New &gt; Servlet \u3092\u9078\u629e\u3057\u3001\u4ee5\u4e0b\u306e\u753b\u50cf\u3092\u4f7f\u7528\u3057\u3066\u6700\u521d\u306e\u30b5\u30fc\u30d6\u30ec\u30c3\u30c8\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002\u518d\u5ea6\u3001Finish\u30dc\u30bf\u30f3\u3092\u30af\u30ea\u30c3\u30af\u3057\u3066\u3082\u826f\u3044\u3067\u3059\u3057\u3001Next\u30dc\u30bf\u30f3\u3092\u4f7f\u7528\u3057\u3066\u4ed6\u306e\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002Finish\u30dc\u30bf\u30f3\u3092\u30af\u30ea\u30c3\u30af\u3059\u308b\u3068\u3001\u30b5\u30fc\u30d6\u30ec\u30c3\u30c8\u306e\u30b9\u30b1\u30eb\u30c8\u30f3\u30b3\u30fc\u30c9\u304c\u751f\u6210\u3055\u308c\u307e\u3059\u306e\u3067\u3001\u7570\u306a\u308b\u30e1\u30bd\u30c3\u30c9\u3084\u30a4\u30f3\u30dd\u30fc\u30c8\u3092\u5165\u529b\u3059\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3053\u308c\u306b\u3088\u308a\u6642\u9593\u3092\u7bc0\u7d04\u3067\u304d\u307e\u3059\u3002doGet()\u30e1\u30bd\u30c3\u30c9\u306b\u52d5\u7684\u30c7\u30fc\u30bf\u306eHTML\u30b3\u30fc\u30c9\u3092\u8ffd\u52a0\u3057\u3001HTTP GET\u30ea\u30af\u30a8\u30b9\u30c8\u306b\u5bfe\u3057\u3066\u547c\u3073\u51fa\u3055\u308c\u308b\u3088\u3046\u306b\u3057\u307e\u3059\u3002\u6700\u521d\u306e\u30b5\u30fc\u30d6\u30ec\u30c3\u30c8\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code>package com.scdev.first;\r\n\r\nimport java.io.IOException;\r\nimport java.io.PrintWriter;\r\nimport java.util.Date;\r\n\r\nimport javax.servlet.ServletException;\r\nimport javax.servlet.annotation.WebInitParam;\r\nimport javax.servlet.annotation.WebServlet;\r\nimport javax.servlet.http.HttpServlet;\r\nimport javax.servlet.http.HttpServletRequest;\r\nimport javax.servlet.http.HttpServletResponse;\r\n\r\n\/**\r\n * Servlet implementation class FirstServlet\r\n *\/\r\n@WebServlet(description = \"My First Servlet\", urlPatterns = { \"\/FirstServlet\" , \"\/FirstServlet.do\"}, initParams = {@WebInitParam(name=\"id\",value=\"1\"),@WebInitParam(name=\"name\",value=\"scdev\")})\r\npublic class FirstServlet extends HttpServlet {\r\n\tprivate static final long serialVersionUID = 1L;\r\n\tpublic static final String HTML_START=\"&lt;html&gt;&lt;body&gt;\";\r\n\tpublic static final String HTML_END=\"&lt;\/body&gt;&lt;\/html&gt;\";\r\n       \r\n    \/**\r\n     * @see HttpServlet#HttpServlet()\r\n     *\/\r\n    public FirstServlet() {\r\n        super();\r\n        \/\/ TODO Auto-generated constructor stub\r\n    }\r\n\r\n\t\/**\r\n\t * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)\r\n\t *\/\r\n\tprotected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {\r\n\t\tPrintWriter out = response.getWriter();\r\n\t\tDate date = new Date();\r\n\t\tout.println(HTML_START + \"&lt;h2&gt;Hi There!&lt;\/h2&gt;&lt;br\/&gt;&lt;h3&gt;Date=\"+date +\"&lt;\/h3&gt;\"+HTML_END);\r\n\t}\r\n\r\n\t\/**\r\n\t * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)\r\n\t *\/\r\n\tprotected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {\r\n\t\t\/\/ TODO Auto-generated method stub\r\n\t}\r\n\r\n}\r\n<\/code><\/pre>\n<p>Servlet 3\u3088\u308a\u524d\u306f\u3001Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u30c7\u30d7\u30ed\u30a4\u8a18\u8ff0\u5b50\u306bURL\u30d1\u30bf\u30fc\u30f3\u60c5\u5831\u3092\u63d0\u4f9b\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3057\u305f\u304c\u3001servlet 3.0\u3067\u306fJava\u306e\u30a2\u30ce\u30c6\u30fc\u30b7\u30e7\u30f3\u304c\u4f7f\u7528\u3055\u308c\u3001\u7406\u89e3\u3057\u3084\u3059\u304f\u30a8\u30e9\u30fc\u306e\u53ef\u80fd\u6027\u304c\u5c11\u306a\u304f\u306a\u308a\u307e\u3057\u305f\u3002\u305f\u3060\u3057\u3001\u30b5\u30fc\u30d6\u30ec\u30c3\u30c8\u30a8\u30c7\u30a3\u30bf\u30a6\u30a3\u30f3\u30c9\u30a6\u306e[\u5b9f\u884c]\u30e1\u30cb\u30e5\u30fc\u304b\u3089[\u30b5\u30fc\u30d0\u30fc\u3067\u5b9f\u884c]\u30aa\u30d7\u30b7\u30e7\u30f3\u3092\u9078\u629e\u3057\u3001\u4ee5\u4e0b\u306e\u753b\u50cf\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002[\u5b8c\u4e86]\u3092\u30af\u30ea\u30c3\u30af\u3059\u308b\u3068\u3001\u30d6\u30e9\u30a6\u30b6\u304cEclipse\u3067\u958b\u304d\u3001\u6b21\u306eHTML\u30da\u30fc\u30b8\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u65e5\u4ed8\u304c\u52d5\u7684\u306b\u5909\u308f\u308a\u7d9a\u3051\u308b\u305f\u3081\u3001\u30ea\u30d5\u30ec\u30c3\u30b7\u30e5\u3057\u3066\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002Eclipse\u306e\u5916\u3067\u3082\u4ed6\u306e\u30d6\u30e9\u30a6\u30b6\u3067\u958b\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u30b5\u30fc\u30d6\u30ec\u30c3\u30c8\u306fHTML\u3092\u751f\u6210\u3057\u3066\u30ec\u30b9\u30dd\u30f3\u30b9\u3067\u9001\u4fe1\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002doGet()\u306e\u5b9f\u88c5\u3092\u898b\u308b\u3068\u3001\u5b9f\u969b\u306b\u306fHTML\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u4f5c\u6210\u3057\u3001\u305d\u308c\u3092\u30ec\u30b9\u30dd\u30f3\u30b9\u306ePrintWriter\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u66f8\u304d\u8fbc\u3093\u3067\u5fc5\u8981\u306a\u5834\u6240\u306b\u52d5\u7684\u306a\u60c5\u5831\u3092\u8ffd\u52a0\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306f\u521d\u3081\u3066\u306e\u30b9\u30bf\u30fc\u30c8\u3067\u3059\u304c\u3001\u30ec\u30b9\u30dd\u30f3\u30b9\u304c\u975e\u5e38\u306b\u5927\u304d\u304f\u3001\u591a\u304f\u306e\u52d5\u7684\u306a\u30c7\u30fc\u30bf\u3092\u542b\u3093\u3067\u3044\u308b\u5834\u5408\u3001\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u3084\u3059\u304f\u8aad\u307f\u3084\u3059\u304f\u4fdd\u5b88\u304c\u56f0\u96e3\u3067\u3059\u3002\u3053\u308c\u304cJSP\u306e\u5c0e\u5165\u306e\u4e3b\u306a\u7406\u7531\u3067\u3059\u3002JSP\u3082\u30b5\u30fc\u30d0\u30fc\u30b5\u30a4\u30c9\u306e\u6280\u8853\u3067\u3042\u308a\u3001\u5fc5\u8981\u306a\u5834\u6240\u306b\u52d5\u7684\u306a\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u8ffd\u52a0\u3059\u308b\u305f\u3081\u306e\u8ffd\u52a0\u6a5f\u80fd\u3092\u6301\u3063\u305fHTML\u306e\u3088\u3046\u306a\u3082\u306e\u3067\u3059\u3002JSP\u306f\u8868\u793a\u306b\u9069\u3057\u3066\u3044\u308b\u305f\u3081\u3001HTML\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3057\u3084\u3059\u3044\u3067\u3059\u3002\u4ee5\u4e0b\u306f\u3001\u4e0a\u8a18\u306e\u30b5\u30fc\u30d6\u30ec\u30c3\u30c8\u3068\u540c\u3058\u3053\u3068\u3092\u884c\u3046\u6700\u521d\u306eJSP\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u3059\u3002<\/p>\n<pre class=\"post-pre\"><code>&lt;%@page import=\"java.util.Date\"%&gt;\r\n&lt;%@ page language=\"java\" contentType=\"text\/html; charset=US-ASCII\"\r\n    pageEncoding=\"US-ASCII\"%&gt;\r\n&lt;!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD HTML 4.01 Transitional\/\/EN\" \"https:\/\/www.w3.org\/TR\/html4\/loose.dtd\"&gt;\r\n&lt;html&gt;\r\n&lt;head&gt;\r\n&lt;meta http-equiv=\"Content-Type\" content=\"text\/html; charset=US-ASCII\"&gt;\r\n&lt;title&gt;Hello&lt;\/title&gt;\r\n&lt;\/head&gt;\r\n&lt;body&gt;\r\n&lt;h2&gt;Hi There!&lt;\/h2&gt;\r\n&lt;br&gt;\r\n&lt;h3&gt;Date=&lt;%= new Date() %&gt;\r\n&lt;\/h3&gt;\r\n&lt;\/body&gt;\r\n&lt;\/html&gt;\r\n<\/code><\/pre>\n<p>\u3082\u3057\u79c1\u305f\u3061\u304c\u4e0a\u8a18\u306eJSP\u3092\u5b9f\u884c\u3059\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u30a4\u30e1\u30fc\u30b8\u306e\u3088\u3046\u306a\u51fa\u529b\u304c\u5f97\u3089\u308c\u307e\u3059\u3002Eclipse\u3067\u306f\u3001\u6700\u7d42\u7684\u306a\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u968e\u5c64\u306f\u4ee5\u4e0b\u306e\u30a4\u30e1\u30fc\u30b8\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>FirstServlet\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/h3>\n<p>\u300c\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u30b5\u30fc\u30d6\u30ec\u30c3\u30c8\u306e\u30cf\u30ed\u30fc\u30ef\u30fc\u30eb\u30c9\u306e\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u300d<\/p>\n<p>\u5c06\u6765\u306e\u6295\u7a3f\u3067\u306f\u3001Servlet\u3068JSP\u306b\u3064\u3044\u3066\u3055\u3089\u306b\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3059\u304c\u3001\u3053\u306e\u6295\u7a3f\u3092\u7d50\u8ad6\u4ed8\u3051\u308b\u524d\u306b\u3001Java\u30a6\u30a7\u30d6\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u3044\u304f\u3064\u304b\u306e\u5074\u9762\u3092\u3088\u304f\u7406\u89e3\u3057\u3066\u304a\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>\u30a6\u30a7\u30d6\u30b3\u30f3\u30c6\u30ca<\/h3>\n<p>Tomcat\u306fWeb\u30b3\u30f3\u30c6\u30ca\u3067\u3059\u3002\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u304b\u3089\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u30fc\u3078\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u3042\u308b\u3068\u3001Tomcat\u306f\u305d\u306e\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u30a6\u30a7\u30d6\u30b3\u30f3\u30c6\u30ca\u306b\u6e21\u3057\u3001\u30a6\u30a7\u30d6\u30b3\u30f3\u30c6\u30ca\u306f\u9069\u5207\u306a\u30ea\u30bd\u30fc\u30b9\uff08\u30b5\u30fc\u30d6\u30ec\u30c3\u30c8\u307e\u305f\u306fJSP\uff09\u3092\u898b\u3064\u3051\u3066\u3001\u305d\u306e\u30ea\u30bd\u30fc\u30b9\u304b\u3089\u306e\u30ec\u30b9\u30dd\u30f3\u30b9\u3092\u5229\u7528\u3057\u3066\u30ec\u30b9\u30dd\u30f3\u30b9\u3092\u751f\u6210\u3057\u3001\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u30fc\u306b\u63d0\u4f9b\u3057\u307e\u3059\u3002\u305d\u308c\u304b\u3089\u30a6\u30a7\u30d6\u30b5\u30fc\u30d0\u30fc\u304c\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u30ec\u30b9\u30dd\u30f3\u30b9\u3092\u9001\u308a\u8fd4\u3057\u307e\u3059\u3002\u30a6\u30a7\u30d6\u30b3\u30f3\u30c6\u30ca\u304c\u30ea\u30af\u30a8\u30b9\u30c8\u3092\u53d7\u3051\u53d6\u308b\u3068\u3001\u3082\u3057\u30b5\u30fc\u30d6\u30ec\u30c3\u30c8\u306e\u5834\u5408\u306f\u3001\u30b3\u30f3\u30c6\u30ca\u306f2\u3064\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3067\u3042\u308bHTTPServletRequest\u3068HTTPServletResponse\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002\u305d\u3057\u3066URL\u306b\u57fa\u3065\u3044\u3066\u9069\u5207\u306a\u30b5\u30fc\u30d6\u30ec\u30c3\u30c8\u3092\u898b\u3064\u3051\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u306e\u305f\u3081\u306b\u30b9\u30ec\u30c3\u30c9\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002\u305d\u3057\u3066\u3001\u30b5\u30fc\u30d6\u30ec\u30c3\u30c8\u306eservice()\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3057\u3001HTTP\u30e1\u30bd\u30c3\u30c9\u306b\u57fa\u3065\u3044\u3066doGet()\u307e\u305f\u306fdoPost()\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3057\u307e\u3059\u3002\u30b5\u30fc\u30d6\u30ec\u30c3\u30c8\u306e\u30e1\u30bd\u30c3\u30c9\u306f\u52d5\u7684\u306a\u30da\u30fc\u30b8\u3092\u751f\u6210\u3057\u3001\u305d\u308c\u3092\u30ec\u30b9\u30dd\u30f3\u30b9\u306b\u66f8\u304d\u8fbc\u307f\u307e\u3059\u3002\u30b5\u30fc\u30d6\u30ec\u30c3\u30c8\u306e\u30b9\u30ec\u30c3\u30c9\u304c\u5b8c\u4e86\u3059\u308b\u3068\u3001\u30b3\u30f3\u30c6\u30ca\u306f\u30ec\u30b9\u30dd\u30f3\u30b9\u3092HTTP\u30ec\u30b9\u30dd\u30f3\u30b9\u306b\u5909\u63db\u3057\u3066\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u9001\u308a\u8fd4\u3057\u307e\u3059\u3002\u30a6\u30a7\u30d6\u30b3\u30f3\u30c6\u30ca\u304c\u884c\u3046\u91cd\u8981\u306a\u4f5c\u696d\u306e\u4e00\u90e8\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<ul class=\"post-ul\">\n<li>Communication Support &#8211; Container provides easy way of communication between web server and the servlets and JSPs. Because of the container, we don\u2019t need to build a server socket to listen for any request from the webserver, parse the request and generate a response. All these important and complex tasks are done by container and all we need to focus is on our business logic for our applications.<\/li>\n<li>Lifecycle and Resource Management &#8211; Container takes care of managing the life cycle of servlet. The container takes care of loading the servlets into memory, initializing servlets, invoking servlet methods and destroying them. The container also provides utility like JNDI for resource pooling and management.<\/li>\n<li>Multithreading Support &#8211; Container creates a new thread for every request to the servlet and when it\u2019s processed the thread dies. So servlets are not initialized for each request and save time and memory.<\/li>\n<li>JSP Support &#8211; JSPs doesn\u2019t look like normal java classes and web container provides support for JSP. 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