[B! tips][Java] monjudohã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

monjudoh id:monjudoh

tipsã¨Javaã«é–¢ã™ã‚‹monjudohã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (27)

${{author_name}}$

{{{comment_expanded}}}

{{label}}

{{#is_bookmark}}ãƒªã‚¹ãƒˆ{{/is_bookmark}}{{^is_bookmark}}ãƒªãƒ³ã‚¯{{/is_bookmark}}

${{author_name}}$
{{author_name}}{{created}}
{{ #comment }}{{ comment }}{{ /comment }}
- {{ label }}

${{author_name}}$

{{{comment_expanded}}}

{{label}}

{{#is_bookmark}}ãƒªã‚¹ãƒˆ{{/is_bookmark}}{{^is_bookmark}}ãƒªãƒ³ã‚¯{{/is_bookmark}}

JDK6ã®HttpServerã§ç°¡å˜ãªWebã‚µãƒ¼ãƒãƒ¼ã‚’ä½œã‚‹ - ãã—ã ã®Hatena
æ—¥ä»˜ãŒã‚ã—ãŸã ã‘ã©æ°—ã«ã™ã‚‹ãªã€‚ (ä»Šã¯11/23) JDK6ã«HTTPã‚µãƒ¼ãƒãƒ¼ã‚¯ãƒ©ã‚¹ãŒç”¨æ„ã•ã‚Œã¦ã‚‹ã¨ã„ã†ã“ã¨ã§ã€ã“ã‚Œã‚’ä½¿ã£ã¦é™çš„ãƒ•ã‚¡ã‚¤ãƒ«å°‚ç”¨ã®ç°¡å˜ãªWebã‚µãƒ¼ãƒãƒ¼ä½œã£ã¦ã¿ã¾ã—ãŸã€‚ package webserver; import com.sun.net.httpserver.HttpExchange; import com.sun.net.httpserver.HttpHa ndler; import com.sun.net.httpserver.HttpServer; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.io.PrintWrit
monjudoh 2010/11/23
Java

Java SE6

HTTP

tips
ãƒªãƒ³ã‚¯
æ”»æ’ƒçš„ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã«ã¯ã€ä¾‹å¤–ãƒ–ãƒ¬ãƒ¼ã‚¯ãƒã‚¤ãƒ³ãƒˆãŒä¾¿åˆ© - åœ°å¹³ç·šã«è¡Œã
æŸ´ç”° èŠ³æ¨¹ã•ã‚“*1ã®ãƒ–ãƒã‚°ã‚’èªã‚“ã§ã„ã¦ã€ãµã¨ç›®ã«ã¨ã¾ã£ãŸã‚³ãƒ¡ãƒ³ãƒˆãŒã‚ã‚Šã¾ã—ãŸã€‚ çµæžœã¨ã—ã¦ã€APIã®å®Ÿè£…ã‚³ãƒ¼ãƒ‰ã§ã¯ä¸æ£ãƒ‘ãƒ©ãƒ¡ãƒ¼ã‚¿ã®æ¤œæŸ»ã•ã‚Œã¦ã„ãªã„ã€‚ã‚ã‚‹ã„ã¯ã€æ¤œæŸ»ã¯ã—ã¦ã„ã‚‹ãŒä¾‹å¤–ã‚’ã‚¹ãƒãƒ¼ã™ã‚‹ã“ã¨ãªãã€å˜ç´”ã«ãƒªã‚¿ãƒ¼ãƒ³ã—ã¦ã„ã‚‹ã€‚â€» ï¼ˆä¸ç•¥ï¼‰ â€»ã€€æ¤œæŸ»ã¯ã—ã¦ã„ã‚‹ãŒå˜ç´”ã«ãƒªã‚¿ãƒ¼ãƒ³ã—ã¦ã„ã‚‹ã¨ã€ãã®ä¸æ£ã¨æ€ã‚ã‚Œã‚‹å€¤ãŒæœ¬å½“ã«ä¸æ£ãªã®ã‹ã€æ£å¸¸å€¤ã®ç¯„å›²ã®ä¸€ã¤ãªã®ã‹ãŒä¸æ˜Žçžã¨ãªã‚Šã¾ã™ã€‚ ã‚³ãƒ¡ãƒ³ãƒˆï¼š å…¨ä¾‹å¤–ã‚’ã‚ãƒ£ãƒƒãƒã—ã¦ã€é©å½“ãªåˆ¥ã®ä¾‹å¤–ã«ãƒ©ãƒƒãƒ—ã—ã¦ã‚¹ãƒãƒ¼ã—ãŸã‚Šã€ã‚ãƒ£ãƒƒãƒã¯ã™ã‚‹ã‘ã©ä½•ã®å‡¦ç†ã‚‚ã—ãªã„ã§æˆ»ã‚Šå€¤ã‚’è¿”ã™äººã‚‚æ™‚ã€…ã„ã¾ã™ãã€‚FileNotFoundException ã‚’ã‚ãƒ£ãƒƒãƒã—ã¦-1ã‚’å¸°ã—ãŸã‚Šã¨ã‹ã€‚ FileNotFoundExceptionã‚’ãã®ã¾ã¾ã‚¹ãƒãƒ¼ã—ã¦ãã‚Œã‚Œã°ãƒ•ã‚¡ã‚¤ãƒ«åã‚„ãƒ‘ã‚¹ãŒé–“é•ã£ã¦ã„ã‚‹å¯èƒ½æ€§ã«å³åº§ã«æ€ã„ã‚ãŸã‚‹ã®ã«ã€-1ã‚„åˆ¥ã®ä¾‹å¤–ã‚’å¸°ã•ã‚Œã‚‹ã¨ã€ãã®ã‚¨ãƒ©ãƒ¼ãŒä½•ã§ã‚ã‚‹ã‹ã‚’è¿½è·¡ã™ã‚‹ã ã‘ã§ä¸¸ä¸€æ—¥ã‚’æµªè²»ã•
monjudoh 2010/10/14
ä¾‹å¤–ã‚’æ¡ã‚Šã¤ã¶ã™ã‚³ãƒ¼ãƒ‰ã®debug

debug

Java

tips

Eclipse
ãƒªãƒ³ã‚¯
ã€ãƒ¬ãƒãƒ¼ãƒˆã€‘Javaã§ãƒ•ã‚¡ã‚¤ãƒ«ã‚’é«˜é€Ÿã«ã‚³ãƒ”ãƒ¼ã™ã‚‹æ–¹æ³• | ã‚¨ãƒ³ã‚¿ãƒ¼ãƒ—ãƒ©ã‚¤ã‚º | ãƒžã‚¤ã‚³ãƒŸã‚¸ãƒ£ãƒ¼ãƒŠãƒ«
Java Programming Language Javaã§ã¯ã•ã¾ã–ã¾ãªæ–¹æ³•ã§ãƒ•ã‚¡ã‚¤ãƒ«ã®ã‚³ãƒ”ãƒ¼ã‚’å®Ÿè£…ã§ãã‚‹ã€‚Javaãƒ—ãƒã‚°ãƒ©ãƒžãªã‚‰èª°ã—ã‚‚ä¸€åº¦ã¯ã€ã©ã®æ–¹æ³•ãŒã‚‚ã£ã¨ã‚‚é«˜é€Ÿã«ãƒ•ã‚¡ã‚¤ãƒ«ã‚³ãƒ”ãƒ¼ã‚’å®Ÿç¾ã§ãã‚‹ã‹è€ƒãˆãŸã“ã¨ãŒã‚ã‚‹ã ã‚ã†ã€‚ãƒ—ãƒã‚°ãƒ©ãƒžã«ã¨ã£ã¦å®Ÿè¡Œé€Ÿåº¦ã¯ã„ã¤ã§ã‚‚æœ€å¤§ã®é–¢å¿ƒäº‹ã®ã²ã¨ã¤ã ã€‚ File Copy in Java - Benchmark - Javalobbyã«ã€ã“ã†ã—ãŸç–‘å•ã«å¯¾ã™ã‚‹ã²ã¨ã¤ã®çµæžœã¨ã—ã¦èˆˆå‘³æ·±ã„è¨˜äº‹ãŒæŽ²è¼‰ã•ã‚Œã¦ã„ã‚‹ã€‚Baptiste Wichtæ°ãŒæŠ•ç¨¿ã—ãŸè¨˜äº‹ã§ã€ã‚³ãƒ”ãƒ¼å®Ÿè£…ã‚’10ã®ç¨®é¡žã«åˆ†é¡žã—ã€ãã‚Œãžã‚Œã©ã†ã„ã£ãŸé•ã„ãŒç¾ã‚Œã‚‹ã‹ã‚’ç´¹ä»‹ã—ã¦ã„ã‚‹ã€‚ã‚³ãƒ”ãƒ¼æ–¹æ³•ã¯æ¬¡ã®ã¨ãŠã‚Šã€‚ èªã¿è¾¼ã¿ã¨æ›¸ãå‡ºã—ã®Streamã‚’é–‹ã„ã¦ã€byteã”ã¨ã«ãƒ•ã‚¡ã‚¤ãƒ«ã®ã‚³ãƒ”ãƒ¼ã‚’å®Ÿæ–½ã€‚ èªã¿è¾¼ã¿ã¨æ›¸ãå‡ºã—ã®Readerã‚’é–‹ã„ã¦ã€charã”ã¨ã«ãƒ•ã‚¡ã‚¤ãƒ«ã®ã‚³ãƒ”ãƒ¼ã‚’å®Ÿæ–½ã€‚ èªã¿è¾¼ã¿ã¨æ›¸ãå‡ºã—ã®BufferdStrea
monjudoh 2010/08/12
å‚è€ƒhttp://twitter.com/ryushi/status/21042360579 ã€Žãªã‚ã¦ã‚“ã®ã‹ã¨ã€‚çœŸé¢ç›®ã«åè«–ã™ã‚‹ã®ã‚‚é¦¬é¹¿ã‚‰ã—ã„ä¸Šã«ã‚´ãƒŸã£ã½ã„ãƒžã‚¤ã‚¯ãƒãƒ™ãƒ³ãƒãƒžãƒ¼ã‚¯ã˜ã‚ƒãã‡ã‹ã€‚ã€

Java

tips
ãƒªãƒ³ã‚¯
Mavenãƒªãƒã‚¸ãƒˆãƒªã‚’æ¤œç´¢ã—ã¦POMã¨ã‹Grapeç”¨å½¢å¼ã§å‡ºåŠ›ã§ãã‚‹ã‚¹ã‚¯ãƒªãƒ—ãƒˆã‚’æ›¸ã„ã¦ã¿ãŸ - è±†ç„¡æ—¥è¨˜
ã¯ã˜ã‚ã« Groovyã§ã€Grapeã¨ã„ã†Ivyãƒ™ãƒ¼ã‚¹ã®ãƒ„ãƒ¼ãƒ«ãŒã‚ã£ã¦é¼»æ°´ã¡ã‚‡ã¡ã‚‡ãŽã‚Œã‚‹ã»ã©ä¾¿åˆ©(ry ã¨ã„ã†ã‚ã‘ã§ã€æœ€è¿‘ã¯ã¡ã‚‡ãã¡ã‚‡ãMavenãƒªãƒã‚¸ãƒˆãƒªã‚’æ¤œç´¢ã™ã‚‹ã“ã¨ãŒã‚ã‚Šã¾ã™ã€‚ Groovyã®ã‚³ãƒ¼ãƒ‰ã‚’æ›¸ãã¨ãã¯screen+vimã§ã‚„ã£ã¦ã‚‹ã‚“ã§ã™ã‘ã©ã€ãã†ãªã‚‹ã¨ã€ä¸€ã€…Webãƒ–ãƒ©ã‚¦ã‚¶çµŒç”±ã§æ¤œç´¢ã—ã«è¡Œãã®ãŒãŠã£ãã†ã«ãªã£ã¦ãã‚‹ã‚ã‘ã§ã™ã€‚ ã¨ã„ã†ã‚ã‘ã§ã€ãƒ—ãƒã‚°ãƒ©ãƒžã®ä¸‰å¤§ç¾Žå¾³ã§ã‚ã‚‹ã€Œç„¡ç²¾ï¼ˆLazinessï¼‰ã€ã®åã®ä¸‹ã«ã€Mavenãƒªãƒã‚¸ãƒˆãƒªã‚’æ¤œç´¢ã™ã‚‹Groovyã§ã‚¹ã‚¯ãƒªãƒ—ãƒˆã‚’æ›¸ã„ã¦ã¿ã¾ã—ãŸã€‚ãƒã‚¤ãƒ«ã€ç„¡ç²¾ï¼ ã‚‚ã¡ã‚ã‚“ã€Maven2ã®POMå½¢å¼ã¨ã€Groovyã®Grapeå½¢å¼ã§çµæžœã‚’å‡ºåŠ›ã§ãã‚‹ã‚ªãƒ—ã‚·ãƒ§ãƒ³ä»˜ãã§ã™ã€‚ ãªã‚“ã‹ã‚ˆãè€ƒãˆã‚‹ã¨æ—¢ã«ãŸãã•ã‚“å‰ä¾‹ãŒã‚ã‚Šãã†ã§ã™ãŒã€è»Šè¼ªã®å†ç™ºæ˜Žä¸Šç‰ã§ã™ã€‚ æ¥½ã—ã„ã‹ã‚‰ä½œã£ãŸã‚“ã ã€ä½•ã‹æ–‡å¥ã‚ã‚‹ã‹ã“ã®é‡ŽéƒŽã€‚ã§ã™ã€‚ã™ã„ã¾ã›ã‚“ã§ã™ã€‚ ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ« å®Ÿè¡Œã«å¿…è¦ãªã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰
monjudoh 2010/03/08
Java

Maven

tips
ãƒªãƒ³ã‚¯
Effective Java èªæ›¸ä¼š 8 æ—¥ç›® ã€Œãã‚Œ enum ã§å‡ºæ¥ã‚‹ã‚ˆã€ - ITæˆ¦è¨˜
ã¯ã˜ã‚ã« ä»Šæ—¥èªã‚“ã ã¨ã“ã‚ 143 ãƒšãƒ¼ã‚¸ã€œ 159 ãƒšãƒ¼ã‚¸ å‰å›žã¯ã“ã¡ã‚‰ Effective Java èªæ›¸ä¼š 7 æ—¥ç›® ã€ŒPECS! PECS! PECS!ã€ - ITæˆ¦è¨˜ int å®šæ•°ã¨ã‹ä½¿ã‚ãªã„ åž‹å®‰å…¨ã˜ã‚ƒãªã„ã‹ã‚‰ enum ä½¿ã† enum Hoge { FOO, BAR; } ç°¡å˜ ãƒ¡ã‚½ãƒƒãƒ‰ã‚‚æŒã¦ã‚‹ enum Hoge { FOO, BAR; void a() { /* (snip) */ } } ã§ã€ä»¥ä¸‹ã®ã‚ˆã†ã«ä½¿ã† Hoge.FOO.a(); ã‚·ãƒ³ã‚°ãƒ«ãƒˆãƒ³ã‚‚ æœ€è¿‘ã® Java ã§ã¯ enum ã§ã‚„ã‚‹ã‚‰ã—ã„ï¼ switch æ–‡ã®ä»£ã‚ã‚Šã«å›ºæœ‰ãƒ¡ã‚½ãƒƒãƒ‰ enum Hoge { FOO { void a() { /*snip*/ } }, BAR { void a() { /*snip*/ } }; abstract void a(); } ä»¥ä¸‹ã®ã‚³ãƒ¼ãƒ‰ãŒ // ã“ã‚Œã¯ãƒ€ãƒ¡ swit
monjudoh 2010/02/26
Java

enum

tips
ãƒªãƒ³ã‚¯
Javaå¤‰æ…‹?ã‚³ãƒ¼ãƒ‰æœ€é€Ÿãƒžã‚¹ã‚¿ãƒ¼ - ã†ãªã®æ—¥è¨˜
Javaå¤‰æ…‹æ–‡æ³•æœ€é€Ÿãƒžã‚¹ã‚¿ãƒ¼ - ãƒ—ãƒã‚°ãƒ©ãƒžãƒ¼ã®è„³ã¿ããŒé¢ç™½ã‹ã£ãŸ && å‚è€ƒã«ãªã£ãŸã®ã§ä¾¿ä¹—ã—ã¦ãƒªã‚¹ãƒšã‚¯ãƒˆã€‚å¤‰æ…‹ä¸–é–“ã§ã‚ã¾ã‚Šè¦‹ã‹ã‘ãªã„(ã‹ã‚‚çŸ¥ã‚Œãªã„)Javaã‚³ãƒ¼ãƒ‰ã‚’ã€éŽåŽ»ã®ã‚¨ãƒ³ãƒˆãƒªã‹ã‚‰ã¾ã¨ã‚ã¦ã¿ã¾ã—ãŸã€‚ nullã§ãªã‘ã‚Œã°ãƒ«ãƒ¼ãƒ— ã€Œé…åˆ—ãŒnullã§ãªã‘ã‚Œã°ãƒ«ãƒ¼ãƒ—ã€ã¨ã„ã†ã‚·ãƒ¼ãƒ³ã¯ã¾ã‚Œã«ã‚ã‚Šã¾ã™ãŒã€nullãƒã‚§ãƒƒã‚¯ã®ãŸã‚ã«ã‚¤ãƒ³ãƒ‡ãƒ³ãƒˆãŒæ·±ããªã‚‹ã®ãŒæˆ‘æ…¢ãªã‚‰ã‚“ã€ã¨ã„ã†ã¨ãã«ã“ã†ã„ã†è¨˜è¿°ã¯ã©ã†ã§ã—ã‚‡ã†ã€‚ String[] strs = // ç•¥ // é…åˆ—ãŒnullã§ãªã‘ã‚Œã°å„è¦ç´ ã«å¯¾ã—ã¦å‡¦ç†ã‚’å®Ÿè¡Œ if ( strs != null ) for ( String str : strs ) { // å‡¦ç† } ifæ–‡ã®ã€Œ{}ã€ã‚’çœç•¥ã—ã¦forã‚’ç¹‹ã’ã¦ã„ã‚‹ã ã‘ã§ã™ãŒã€ã‚¤ãƒ³ãƒ‡ãƒ³ãƒˆã‚’ã•ã‚Šã’ãªãå‰Šã‚Œã¾ã™ã€‚ ä¼¼ãŸã‚ˆã†ãªä¾‹ã§ã€ã€Œä¾‹å¤–ã‚’ç„¡è¦–ã—ã¦æ¬¡ã¸ã€ã¨ã‹ã‚‚ã€‚ // ä¾‹å¤–ãŒç™ºç”Ÿã—ã¦ã‚‚ç„¡è¦–ã—ã¦æ¬¡ã¸ for ( S
monjudoh 2010/02/04
ãŠãŠã€Žåž‹ãƒ‘ãƒ©ãƒ¡ãƒ¼ã‚¿ã§ã€Œ&ã€ã‚’ä½¿ã†ã“ã¨ã§ã€Œè¤‡æ•°ã®ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ã‚¤ã‚¹ã‚’å®Ÿè£…ã—ãŸã‚¯ãƒ©ã‚¹ã€ã‚’è¨˜è¿°ã§ãã¾ã™ã€‚ã€

Java

tips

ã‚¸ã‚§ãƒãƒªãƒƒã‚¯
ãƒªãƒ³ã‚¯
Configure Maven Jetty plugin for SSL communication
For a recent project I had to enable SSL communication for the Maven Jetty plugin. So when we run mvn jetty:run we must be able to use the https protocol. After browsing several mailing list I found the answer. For development we can create our own security certificate and configure the plugin to use it. To create the development certificate we run the following command: $ keytool -genkey -alias j
monjudoh 2010/01/20
Java

Maven

Jetty

SSL

tips
ãƒªãƒ³ã‚¯
Velocityï¼Œå¾®å¦™ãƒ»ãƒ»ãƒ»
monjudoh 2010/01/13
Java

Velocity

tips
ãƒªãƒ³ã‚¯
Xmas Java - ã‚ˆãã®ã¯ã¦ãª
ä»¥ä¸‹ã®sourceã¯compileãŒé€šã‚‹ã§ã—ã‚‡ã†ã‹ï¼Ÿ public class Xmas { <T> T func1() { return this.func2(); } <T> T func2() { return null; } } è©¦ã—ã«ã‚³ãƒ³ãƒ‘ã‚¤ãƒ«ã—ã¦ã¿ã‚‹ã¨ yone098>javac Xmas.java Xmas.java:6: åž‹ãƒ‘ãƒ©ãƒ¡ãƒ¼ã‚¿ <T>T ã‚’åˆ¤åˆ¥ã§ãã¾ã›ã‚“; åž‹å¤‰æ•° T (ä¸Šé™ T,java.lang.Object) ã®å›ºæœ‰ã®æœ€å¤§ã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹ãŒå˜åœ¨ã—ã¾ã›ã‚“ã€‚ return this.func2(); ^ ã‚¨ãƒ©ãƒ¼ 1 å€‹ Eclipseã§OKãªã®ã«ã€mvnã§ã‚³ãƒ³ãƒ‘ã‚¤ãƒ«å‡ºæ¥ãªã„ã¨ã„ã†çµŒé¨“ã—ãŸæ–¹ã‚‚ã„ã‚‹ã®ã§ã¯ãªã„ã§ã—ã‚‡ã†ã‹ã€‚ åž‹ãƒ‘ãƒ©ãƒ¡ãƒ¼ã‚¿Tãã‚‰ã„ã€åˆ¤åˆ¥å‡ºæ¥ã‚‹ã˜ã‚ƒã‚“ã¨æ€ã„ã¾ã™ãŒã€å‡ºæ¥ãªã„åã§ã™ã€‚ ã™ãåˆ†ã‹ã£ãŸæ–¹ã¯ã€Sunã®JDKãƒžãƒ‹ã‚¢ã§ã™ãã€‚ ã“ã†ã„ã†ã¨ãã¯ã€ä»¥ä¸‹ã®ã‚ˆã†ã«å¤‰æ›´ã—
monjudoh 2009/12/26
Java

tips

ã‚¸ã‚§ãƒãƒªã‚¯ã‚¹
ãƒªãƒ³ã‚¯
Javaã®ã‚·ã‚¹ãƒ†ãƒ ãƒ—ãƒãƒ‘ãƒ†ã‚£ã‚’ã™ã¹ã¦è¡¨ç¤ºã™ã‚‹Javaã‚³ãƒ¼ãƒ‰ - ã„ã‚ã„ã‚è§£æžæ—¥è¨˜
Javaã®ã‚·ã‚¹ãƒ†ãƒ ãƒ—ãƒãƒ‘ãƒ†ã‚£ã¯ã€System.getProperties()ãƒ¡ã‚½ãƒƒãƒ‰ã‚’å‘¼ã³å‡ºã™ã“ã¨ã§å–å¾—ã§ãã¾ã™ã€‚ã“ã®ãƒ¡ã‚½ãƒƒãƒ‰ã¯Mapã‚’ç¶™æ‰¿ã—ãŸPropertiesã‚¯ãƒ©ã‚¹ã®ã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹ã‚’è¿”ã™ã®ã§ã€Mapã¨åŒæ§˜ã«for-eachæ–‡ã‚’ç”¨ã„ã¦ã™ã¹ã¦ã®ãƒ‡ãƒ¼ã‚¿(ã‚·ã‚¹ãƒ†ãƒ ãƒ—ãƒãƒ‘ãƒ†ã‚£)ã¸ã®ç¹°ã‚Šè¿”ã—å‡¦ç†ãŒå¯èƒ½ã§ã™ã€‚ ä»¥ä¸‹ã€ã‚·ã‚¹ãƒ†ãƒ ãƒ—ãƒãƒ‘ãƒ†ã‚£ã‚’ã™ã¹ã¦è¡¨ç¤ºã™ã‚‹Javaã‚³ãƒ¼ãƒ‰ã§ã™ã€‚ import java.util.*; /** * Javaã®ã‚·ã‚¹ãƒ†ãƒ ãƒ—ãƒãƒ‘ãƒ†ã‚£ã®è¡¨ç¤ºã€‚ * @nattou_curry */ public class PrintProperties { public static void main( String[] args ) { // ã‚·ã‚¹ãƒ†ãƒ ãƒ—ãƒãƒ‘ãƒ†ã‚£ã‚’ã™ã¹ã¦å–å¾—ã™ã‚‹ã€‚ Properties properties = System.getProperties(); // ã™ã¹ã¦ã®ã‚·ã‚¹ãƒ†
monjudoh 2009/11/30
ã€ŽSystem.getProperties().list(System.out);ã€

Java

tips
ãƒªãƒ³ã‚¯
IBM Developer
IBM Developer is your one-stop location for getting hands-on training and learning in-demand skills on relevant techno logies such as generative AI, data science, AI, and open source.
monjudoh 2009/10/27
ctrl+ãƒžã‚¦ã‚¹ã‚ªãƒ¼ãƒãƒ¼ã§ã“ã‚Œã¾ã§ã®ã€ŽOpen Declaration (å®£è¨€ã‚’é–‹ã)ã€ã®ä»–ã«ã€ŽOpen Implementation (å®Ÿè£…ã‚’é–‹ã)ã€ã‚‚é¸æŠžå‡ºæ¥ã‚‹ã‚ˆã†ã«ãªã£ãŸã€‚

Java

Eclipse

Eclipse3.5

tips
ãƒªãƒ³ã‚¯
IBM Developer
IBM Developer is your one-stop location for getting hands-on training and learning in-demand skills on relevant techno logies such as generative AI, data science, AI, and open source.
monjudoh 2009/10/07
toString(),equals(),hashCode()ã®ã‚½ãƒ¼ã‚¹ã‚’ç”Ÿæˆå‡ºæ¥ã‚‹

Eclipse

Eclipse3.5

Java

tips
ãƒªãƒ³ã‚¯
Java ã® enum - ãã‚‹ãã‚‹ï½ž
ã‚¤ãƒžãƒ‰ã‚ã® Java ã«ã¯ enum ãŒã‚ã‚‹ã‚“ã§ã™ã‚ˆå®Ÿã¯ã€ã¨ã„ã†è©±ã€‚ çŸ¥ã£ã¦ã‚‹ã‚ˆãã‚“ãªã“ã¨ï¼ãªäººã¯èªã‚€ã¾ã§ã‚‚ãªã„ã‹ã‚‚ã€‚ enum ã£ã¦ï¼Ÿ åˆ—æŒ™åž‹ã®ã“ã¨ã€‚C ã¨ã‹ C++ ã¨ã‹ C# ã¨ã‹ã§ãŠãªã˜ã¿ã®ã‚¢ãƒ¬ã€‚ å˜ç´”ãª enum ã¯ Java ã§ã‚‚ã“ã‚Œã‚‰ã®è¨€èªžã® enum ã¨åŒã˜ã‚ˆã†ãªè¨˜è¿°ã«ãªã‚‹ã‘ã©ã€ã“ã‚Œã‚‰ã®è¨€èªžã® enum ãŒæ•´æ•°åž‹ã‚’ãƒ™ãƒ¼ã‚¹ã«ã—ã¦ã„ã‚‹ã®ã«å¯¾ã—ã¦ã€Java ã§ã¯ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã‚’ãƒ™ãƒ¼ã‚¹ã«ã—ã¦ã„ã‚‹ç‚¹ãŒç•°ãªã‚‹ã€‚ ã¾ããã®è©±ã¯å¾Œã»ã©ãƒ»ãƒ»ãƒ» å˜ç´”ãª enum ãŸã åˆ—æŒ™ã™ã‚‹ã ã‘ã® enum ãªã‚‰ã€æœ¬å½“ã« C ã‚„ C++ ã‚„ C# ã¨ã»ã¨ã‚“ã©å¤‰ã‚ã‚‰ãªã„ã€‚ // ä¿¡å·æ©Ÿã®è‰² enum SignalColor { RED, BLUE, YELLOW } ãŸã ã“ã‚Œã ã‘ã€‚æœ«å°¾ã«ã¯ã€ä½™åˆ†ãªã‚«ãƒ³ãƒžãŒã‚ã£ã¦ã‚‚ã„ã„ã€‚ enum SignalColor { RED, BLUE, YELLOW, } æ›´ã«ã€æœ«å°¾ã«ã‚»
monjudoh 2009/09/25
Java

enum

tips
ãƒªãƒ³ã‚¯
Maven2ã®Tipsã‚’é›†ã‚ã‚‹Wiki - CookBook
{{toc}} !ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ« !! Maven2ã‚’ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã™ã‚‹ æ—¢ã«Javaç’°å¢ƒ(1.4ä»¥ä¸Š)ã‚’ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã—ã¦ã„ã‚‹ã‚‚ã®ã¨ã™ã‚‹ã€‚ http://maven.apache.org/download.html ã‚ˆã‚Š [[magnoto|http://horoscope.magnoto.com/]] * maven-2.0.X-bin.tar.bz2 * maven-2.0.X-bin.tar.gz * maven-2.0.X-bin.zip ã®ã©ã‚Œã‹1ã¤ã‚’ãƒ€ã‚¦ãƒ³ãƒãƒ¼ãƒ‰ã—é©å½“ãªè§£å‡ã‚½ãƒ•ãƒˆã§å±•é–‹ã™ã‚‹ã€‚å±•é–‹å¾Œã®'''maven-2.0.X'''ãƒ‡ã‚£ãƒ¬ã‚¯ãƒˆãƒªã‚’ä»»æ„ã®å ´æ‰€ã«ç½®ãã€‚(ä¾‹ãˆã°Windowsã§ã‚ã‚Œã°'''C:\maven-2.0.4'''ã€Unixã§ã‚ã‚Œã°'''/usr/local/maven-2.0.4''') Windowsã®å ´åˆã€ã‚¨ã‚¯ã‚¹ãƒ—ãƒãƒ¼ãƒ©ã‚ˆã‚Š'''ãƒžã‚¤ã‚³ãƒ³ãƒ”ãƒ¥ãƒ¼ã‚¿'''ã‚’å³ã‚¯
monjudoh 2009/09/04
Java

Maven

tips

ã‚¯ãƒƒã‚¯ãƒ–ãƒƒã‚¯
ãƒªãƒ³ã‚¯
JSPã€JSTLã€EL ã§å®šæ•°ã‚’ä½¿ã† - cypher256's blog
ä»Šå›žã®ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã§ã¯å®šæ•°ã‚¯ãƒ©ã‚¹ã¯è¨è¨ˆæ›¸ã‹ã‚‰è‡ªå‹•ç”Ÿæˆã•ã‚Œã‚‹ã‚ˆã†ã«ã—ã¾ã—ãŸã€‚ã§ã‚‚ã›ã£ã‹ãå®šæ•°ã‚¯ãƒ©ã‚¹ä½œã£ã¦ã‚‚ã€JSP ã§ã¯ãƒ™ã‚¿æ›¸ãã—ã¦ã„ãŸã‚Šã€JSP ã§å®šæ•°ä½¿ã†ã®ã¯ãŠã‹ã—ã„ã¨ã‹è¨€ã†ã‚¨ãƒ©ã„äººã‚‚ã„ãŸã‚Šã—ã¾ã™ãŒã€ã‚„ã£ã±ã‚Š JSP ã§ã‚‚å®šæ•°ä½¿ã„ãŸã„å ´é¢ã¯ã‚ã‚Šã¾ã™ã€‚ä¾‹ã¯æ‚ªã„ã§ã™ã‘ã©ã€ã“ã‚“ãªã€‚ public interface Flg { String ON = "1"; String OFF = "0"; } <td>${Flg.OFF}</td> ã¨ã‹ <c:if test="${hogeFlg == Flg.ON}"> ä»Šã¾ã§ã€å®šæ•°ã‚¯ãƒ©ã‚¹ã”ã¨ã«ãƒžãƒƒãƒ—ã‚’ä½œã£ã¦ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ãƒ»ã‚¹ã‚³ãƒ¼ãƒ—ã«ç™»éŒ²ã—ãŸã‚Šã—ã¦ã„ãŸã®ã§ã™ãŒã€é¢å€’ãªã®ã§è‡ªå‹•ç™»éŒ²ã—ã¦ã—ã¾ãŠã†ã¨ã„ã†ã®ãŒã€JSTLConstantsRegister ã§ã™ã€‚ã©ã“ã‹ã§èžã„ãŸè¨€ã„å›žã—ã§ã™ã‘ã©ã€‚ã“ã‚Œã¯ãƒ«ãƒ¼ãƒˆãƒ»ãƒ‘ãƒƒã‚±ãƒ¼ã‚¸é…ä¸‹ã®ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ãƒ¼ã‚¹ã‹ public s
monjudoh 2009/07/13
Java

JSP

JSTL

tips
ãƒªãƒ³ã‚¯
å…¨Eclipse Java ãƒ—ãƒã‚°ãƒ©ãƒžãƒ¼ã«æ§ã’ã‚‹ Eclispe å¾¹åº•æ´»ç”¨è¡“å®Œå…¨ç‰ˆã€œEclipseã«ç©ºæ°—ã‚’èªã¾ã›ã¦æ¥½ã™ã‚‹è¡“ã€œ - Yamashiro0217ã®æ—¥è¨˜
ã“ã®è¨˜äº‹ã¯ã€http://d.hatena.ne.jp/higayasuo/20090612/1244772658 ã®ã€ŒCtrl+1ã¨Ctrl+Spaceã†ã‚“ã¬ã‚“ã€ã®è©±ã«ã‚¤ãƒ³ã‚¹ãƒ‘ã‚¤ã‚¢ã•ã‚Œã¦æ›¸ã„ãŸã€‚Eclipseå¯æ„›ã„ã‚ˆã€‚Eclipseã€‚ è¨˜äº‹é•·ã„ã‹ã‚‰ã€ã•ãã£ã¨èªã¿é£›ã°ã—ã¦ã€ã‚¢ãƒ‹ãƒ¡ãƒ¼ã‚·ãƒ§ãƒ³gifãŒã‚ã‚‹ã¨ã“ã‚ã‹ã‚‰èªã‚“ã§ã‚‚ååˆ†è¨³ã«ãŸã¤ã¨æ€ã†ã€‚ ã‚ã¨ã€æ–°äººã•ã‚“ã¨ã‹ã«å†™çµŒã•ã›ã‚‹ã®ã‚‚ã„ã„ã‹ã‚‚ã€‚ã¨ã„ã†ã‹ã€åŠåˆ†ãã‚‰ã„ã†ã¡ã®æ–°äººã«å‹‰å¼·ã®ãŸã‚ã¨æ€ã£ã¦æ›¸ã„ãŸã‹ã‚‰ã€‚ã§ã€å®Ÿéš›ã«å†™çµŒã•ã›ã¦å½¹ã«ãŸã£ãŸã€‚ Java ã¯ Eclipse ãªã©ã® IDE ã‚‚å«ã‚ã¦è¨€èªžã¨ã„ã†ã‹ã€ç’°å¢ƒã¨ã„ã†ã‹â€¦ã ã¨åƒ•ã¯æ€ã£ã¦ã‚‹ã€‚Commons, Maven ãªã©ã‚‚å«ã‚ãŸã„ï¼ˆã¾ãã€ãã®ã‚ãŸã‚Šã¯ã€CPANã‚‚å«ã‚ã¦perlã ã‚ã€‚ã¨ã‹ã€ã“ã‚Œã¯å¦å®šã™ã‚‹äººã ã‚‰ã‘ã ã‚ã†ã‘ã©ã€Railsï¼rubyã¨ã„ã†ã“ã¨ã‚’è¨€ã†äººã‚‚ã„ã‚‹ã‚ˆãï¼‰ã€‚ å°‘ãªãã¨ã‚‚åƒ•ã¯ã€Eclipse
monjudoh 2009/06/17
ã¨ã¦ã‚‚ã™ã°ã‚‰ã—ã„

Eclipse

Java

tips

TDD
ãƒªãƒ³ã‚¯
Eclipse ã®ã‚³ãƒ¼ãƒ‰è£œå®Œ (Complete) ã§ java.awt.List ã¨ã‹ã‚’è£œå®Œå€™è£œã‹ã‚‰é™¤å¤–ã—ãŸã„å ´åˆã®è¨å®š - Yamashiro0217ã®æ—¥è¨˜
java.util.List ãŒä½¿ã„ãŸã„ã®ã«ã€ã€ŒListã€ã§ eclipse ã§ Ctrl+Space ã—ã¦è£œå®Œã—ã‚ˆã†ã¨ã—ãŸæ™‚ã«ã€java.awt.List ãŒå‡ºã¦æ¥ã¦ãŠå›°ã‚Šã® Java ãƒ—ãƒã‚°ãƒ©ãƒžãƒ¼ã®çš†æ§˜ã”ãã’ã‚“ã‚ˆã†ã€‚ ãã—ã¦ã€åƒ•ã¯ã¤ã„æœ€è¿‘ã€Wicketã¨ã„ã†Webãƒ•ãƒ¬ãƒ¼ãƒ ãƒ¯ãƒ¼ã‚¯ã®å‹‰å¼·ã‚’ã—ã¦ã„ã¦ã€wicketã®TextFieldãŒä½¿ã„ãŸã„ã®ã«ã€java.awt.TextFieldãŒå‡ºã¦æ¥ã¦ã—ã¾ã†ã¨ã„ã†ã®ã«ãŠå›°ã‚Šã§ã—ãŸã€‚ java.awt.* ä»¥ä¸‹ãªã‚“ã¦Swingãƒ—ãƒã‚°ãƒ©ãƒžãƒ¼ã§ã‚‚ãªã‘ã‚Œã°ä½¿ã„ã¾ã›ã‚“ã—ã€Swingãƒ—ãƒã‚°ãƒ©ãƒžãƒ¼ã§ã‚‚è£œå®Œå¯¾è±¡ã«ãªã‚‰ãªãã¦ã„ã„ã§ã™ã‚ˆãï¼ˆè¨€ã„éŽãŽï¼‰ã€‚ Preferenceï¼ˆè¨å®š) ã® [Java]-[Appearance]-[Type Filters]ã‹ã‚‰è¨å®šã§ãŒã§ãã¾ã™ã€‚ è¨å®šç”»é¢ã§[Add]ã‚’æŠ¼ã—ã¦[java.awt.*]ãªã©ã¨æ‰“ã¤ã ã‘ã€‚ [Type Filter
monjudoh 2009/03/27
Java

Eclipse

tips
ãƒªãƒ³ã‚¯
ãƒ¡ã‚½ãƒƒãƒ‰ã®ã‚¢ã‚¯ã‚»ã‚¹åˆ¶å¾¡ - éƒ½å…ƒãƒ€ã‚¤ã‚¹ã‚± IT-PRESS
ã„ã‚„ã„ã‚„ã€å¿™ã—ãã¦ãƒ–ãƒã‚°æ›´æ–°ã‚µãƒœã£ã¡ã¾ã£ãŸãƒã€‚ã¾ãã€ã¼ã¡ã¼ã¡æ›¸ãã¤ã‚‚ã‚Šã§ã™ã€‚ ãƒ¡ã‚½ãƒƒãƒ‰ã®ã‚¢ã‚¯ã‚»ã‚¹ï¼ˆå¯è¦–æ€§ï¼‰ã‚’åˆ¶å¾¡ã™ã‚‹ãŸã‚ã«ã€ã—ã°ã—ã°ã‚¢ã‚¯ã‚»ã‚¹ä¿®é£¾å(private, publicãªã©ï¼‰ã‚’ä½¿ã†ã®ã¯ã”å˜çŸ¥ã®é€šã‚Šã€‚æ›¸ã„ãŸã‚³ãƒ¼ãƒ‰ã®å¯è¦–æ€§ã‚’ã€å…¨ã¦publicã«ã—ã¦ã‚‚ã€å¤‰æ›´å‰ã¨åŒã˜å‹•ä½œã¯å‡ºæ¥ã¾ã™ã€‚ã—ã‹ã—ãƒ¼ã€ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆæŒ‡å‘ã§ã¯ã€ã“ã®æ‰‹æ³•ã‚’ä½¿ã£ã¦ã€Œå¤–ã«è¦‹ãˆã‚‹å¿…è¦ãŒãªã„ã‚‚ã®ã¯å…¬é–‹ã™ã‚‹ã¹ãã§ã¯ãªã„ã€ã¨ã„ã†æƒ…å ±éš è”½(information hiding)ã‚’å®Ÿè·µã—ã¦ã„ãã‚³ãƒˆãŒå¤šã„ã§ã™ã€‚åŸºæœ¬ä¸ã®åŸºæœ¬ã§ã™ãã€‚ è‡ªåˆ†ã€ä»Šã¾ã§ã€Œã‚¢ã‚¯ã‚»ã‚¹ä¿®é£¾åã®ã¿ã§ã€æƒ…å ±éš è”½ã‚’è¡Œã£ã¦æ¥ãŸã®ã§ã™ãŒã€æœ€è¿‘ä¸€ã¤å¦ã‚“ã ã®ã§æ›¸ãè¨˜ã—ã¦ãŠãã¾ã™ã€‚ ãƒ¡ã‚½ãƒƒãƒ‰ã¸ã®ã‚¢ã‚¯ã‚»ã‚¹åˆ¶å¾¡ã£ã¦ã€ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ã‚¤ã‚¹ã‚’ä½¿ã£ã¦ã‚‚å®Ÿè·µã§ãã‚‹ã‚“ã§ã™ãã€‚ ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ã‚¤ã‚¹ã«ã¯è¨˜è¿°ã•ã‚Œã¦ã„ãªã„ã‘ã©ã€å®Ÿè£…ã‚¯ãƒ©ã‚¹ã«ã¯å˜åœ¨ã™ã‚‹publicãƒ¡ã‚½ãƒƒãƒ‰ã€‚ä¾‹ãˆã°ã€ã‚ã‚‹ã‚¯ãƒ©ã‚¹ãƒ©ã‚¤ãƒ–ãƒ©ãƒªã§ã€Fact
monjudoh 2008/10/11
ã‚½ãƒ•ãƒˆãªæƒ…å ±éš è”½ã€Žã‚ã‚‹ã‚¯ãƒ©ã‚¹ãƒ©ã‚¤ãƒ–ãƒ©ãƒªã§ã€Factoryã‚’ä½¿ã£ã¦ã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹ã‚’å¾—ã¦ã€ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ã‚¤ã‚¹ã§ãã‚Œã‚’å—ã‘å–ã‚‹ã‚±ãƒ¼ã‚¹ã€‚ã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹çš„ã«ã¯publicãƒ¡ã‚½ãƒƒãƒ‰ã‚’æŒã£ã¦ã„ã¦ã‚‚ã€ã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ã‚¤ã‚¹ã«ã¯æŒã£ã¦ã„ãªã„ã€‚ã€

Java

OOP

èªã¿ç‰©

tips
ãƒªãƒ³ã‚¯
jarã§ãƒ•ã‚¡ã‚¤ãƒ«ã‚’ã¾ã¨ã‚ã‚‹
jarã‚³ãƒžãƒ³ãƒ‰ã‚’ä½¿ã£ã¦ã€ã„ãã¤ã‹ã®ãƒ•ã‚¡ã‚¤ãƒ«ã‚’ã¾ã¨ã‚ã¦åœ§ç¸®ã™ã‚‹ã“ã¨ãŒã§ãã¾ã™ã€‚ åœ§ç¸® jarã‚³ãƒžãƒ³ãƒ‰ã§ãƒ•ã‚¡ã‚¤ãƒ«ã‚’ã¾ã¨ã‚ã¦åœ§ç¸®ã™ã‚‹ã¨ãã«ã¯æ¬¡ã®ã‚ˆã†ã«ã—ã¾ã™ã€‚ ä¾‹ãˆã°ã€Sample3_1ã§ã¯Sample3_1.classã¨Sample3_1$1.classã¨ã„ã†ãƒ•ã‚¡ã‚¤ãƒ«ãŒç”Ÿæˆã•ã‚Œã¦ã€å®Ÿè¡Œã«ã¯ã“ã®ï¼’ã¤ã®ãƒ•ã‚¡ã‚¤ãƒ«ãŒå¿…è¦ã§ã—ãŸã€‚ã“ã®ï¼’ã¤ã®ãƒ•ã‚¡ã‚¤ãƒ«ã‚’ã¾ã¨ã‚ã‚‹ãŸã‚ã®ã‚³ãƒžãƒ³ãƒ‰ã¯ jar cf Sample3_1.jar Sample3_1.class Sample3_1$1.class ã¨ãªã‚Šã¾ã™ã€‚ ã¾ãŸã€ãŸã¨ãˆã°Sample13_4ã§ã¯ï¼•ã¤ã®classãƒ•ã‚¡ã‚¤ãƒ«ãŒç”Ÿæˆã•ã‚Œã¾ã—ãŸã€‚ã“ã‚Œã‚‰ã®ã‚¯ãƒ©ã‚¹ãƒ•ã‚¡ã‚¤ãƒ«ã‚’ã™ã¹ã¦ã„ã¡ã„ã¡æŒ‡å®šã™ã‚‹ã®ã¯é¢å€’ã§ã™ã€‚åœ§ç¸®ã™ã‚‹ãƒ•ã‚¡ã‚¤ãƒ«ã®æŒ‡å®šã«ã¯*ã‚„?ãªã©ã®ãƒ¯ã‚¤ãƒ«ãƒ‰ã‚«ãƒ¼ãƒ‰æ–‡å—ãŒä½¿ãˆã¾ã™ã€‚ãƒ¯ã‚¤ãƒ«ãƒ‰ã‚«ãƒ¼ãƒ‰æ–‡å—ã‚’ä½¿ã£ã¦Sample13_4ã«å¿…è¦ãªclassãƒ•ã‚¡ã‚¤ãƒ«ã‚’ã¾ã¨ã‚
monjudoh 2008/09/29
MANIFEST.MFã®æ›¸ãæ–¹ã€‚Main-Classã€Class-Pathã®è¨˜è¿°ã®ä»•æ–¹ã€‚

Java

JAR

tips
ãƒªãƒ³ã‚¯
ã‚µãƒ¼ãƒ–ãƒ¬ãƒƒãƒˆä»•æ§˜ã®èªè¨¼ã‚’ä½¿ã‚ãšã«getRemoteUserã‚„isUserInRoleã‚’ä½¿ã†ã€‚ - NullPointer's
Javaã®Webã‚¢ãƒ—ãƒªã§ãƒ¦ãƒ¼ã‚¶èªè¨¼ã‚’è¡Œã†å ´åˆã€ã‚µãƒ¼ãƒ–ãƒ¬ãƒƒãƒˆä»•æ§˜ã§æ±ºã‚ã‚‰ã‚ŒãŸèªè¨¼æ©Ÿèƒ½ã‚’ä½¿ã†ã‹ã€ç‹¬è‡ªã®èªè¨¼æ©Ÿæ§‹ã‚’å®Ÿè£…ã™ã‚‹ã‹ã€ã„ãšã‚Œã‹ã§ã‚ã‚‹ã¨æ€ã†ã€‚ ã‚µãƒ¼ãƒ–ãƒ¬ãƒƒãƒˆã®èªè¨¼æ©Ÿèƒ½ã‚’ä½¿ã†ã¨HttpServletRequestã®isUserInRoleã‚„getRemoteUserãŒæœ‰åŠ¹ã«ãªã‚‹ã®ãŒåœ°å‘³ã«å¬‰ã—ã„ã€‚Strutsãƒ•ãƒ¬ãƒ¼ãƒ ãƒ¯ãƒ¼ã‚¯ã®ãƒãƒ¼ãƒ«ã«ã‚ˆã‚‹ã‚¢ã‚¯ã‚»ã‚¹åˆ¶å¾¡ã‚‚æœ‰åŠ¹ã«ãªã‚‹ã®ã§ã‚µãƒ¼ãƒ–ãƒ¬ãƒƒãƒˆã®èªè¨¼æ©Ÿèƒ½ã¯çµæ§‹ä½¿ãˆã‚‹ã€‚ä¸€æ–¹ã€ç‹¬è‡ªã®èªè¨¼æ©Ÿæ§‹ã‚’ä½¿ã†ã¨è‡ªç”±ã«ãƒã‚°ã‚¤ãƒ³å‡¦ç†ã‚’è¨˜è¿°ã§ãã‚‹ä»£ã‚ã‚Šã«HttpServletRequestã®getRemoteUserã‚„isUserInRoleã¯ä½¿ãˆãªã„ã€‚ ã—ã‹ã—ç‹¬è‡ªã®èªè¨¼ã§ã‚‚HttpServletRequestWrapperã¨Filterã‚’çµ„ã¿åˆã‚ã›ã‚Œã°ã€getRemoteUserã‚„isUserInRoleã‚’æœ‰åŠ¹ã«ã§ãã‚‹ã€‚ ã¾ãšã€èªè¨¼æ™‚ã«ãƒ¦ãƒ¼ã‚¶åã¨ãƒãƒ¼ãƒ«ã‚’é©å½“ãªåå‰ã§ã‚»ãƒƒã‚·ãƒ§ãƒ³ã«æ ¼ç´
monjudoh 2008/09/22
HttpServletRequestWrapperã®ç¶™æ‰¿ã‚¯ãƒ©ã‚¹ã‚’ä½œã£ã¦ã€filterã§å…ƒã®HttpServletRequestã‚’ãƒ©ãƒƒãƒ—ã™ã‚‹ã‚ˆã†ã«ã™ã‚‹ã€‚

Java

Servlet

èªè¨¼

tips
ãƒªãƒ³ã‚¯
1 2 æ¬¡ã®ãƒšãƒ¼ã‚¸