\u3044\u3044\u306d\uff01\uff01\u00a0http:\/\/www.wakhok.ac.jp\/~tomoharu\/web2004\/text\/index_c7.html
\nhttp:\/\/www.wakhok.ac.jp\/~tomoharu\/web2004\/text\/index_c8.html
\n\u2460Servlet \u304b\u3089 JDBC \u3092\u4f7f\u3046
\n\u30bd\u30fc\u30b9\u00a0 Class.forName(“org.hsqldb.jdbcDriver”);
\nString url = “jdbc:hsqldb:hsql:\/\/localhost”;
\nConnection con = DriverManager.getConnection(url, “sa”, “”);<\/p>\n
\uff22\uff55\uff49\uff4c\uff44\u6642\u00a0javac -classpath
\n“%CATALINA_HOME%\\common\\lib\\servlet.jar;%HSQLDB_HOME%\\lib\\hsqldb.jar”
\nJDBCTestServlet.java<\/p>\n
\u5b9f\u884c\u6642\u00a0WEB-INF\/ — web.xml
\n|- classes\/ — JDBCTestServlet.class
\n|- lib\/\u00a0\u00a0\u00a0\u00a0 — hsqldb.jar (JDBC\u30c9\u30e9\u30a4\u30d0\u304c\u542b\u307e\u308c\u3066\u3044\u308b)<\/p>\n
\u2461JNDI \u3068 DataSource \u306e\u5229\u7528
\n\u30bd\u30fc\u30b9\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Context context = new InitialContext();
\nDataSource ds = (DataSource)context.lookup( “java:comp\/env\/jdbc\/library”);
\nConnection con = ds.getConnection();<\/p>\n
JNDI (Java Naming and Directory Interface)\u306f\u3001Java\u3067LDAP\u306a\u3069\u306e\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u30b5\u30fc\u30d3\u30b9\u3092\u5229\u7528\u3059\u308b\u305f\u3081\u306eAPI\u3067\u3059\u3002\u540d\u524d\u3092\u30ad\u30fc\u306b\u3057\u3066\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u53d6\u308a\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002J
\n\u3053\u3053\u3067JNDI\u3092\u5229\u7528\u3057\u3066\u3044\u307e\u3059\u3002
\n\uff11\u884c\u76ee\u3067\u3001InitialContext\u3092\u53d6\u5f97\u3057\u3066\u3044\u307e\u3059\u3002InitialContext\u3068\u306f\u3001JNDI\u3067\u691c\u7d22\u3092\u3059\u308b\u3068\u304d\u306e\u51fa\u767a\u70b9\u3067\u3059\u3002\u30d5\u30a1\u30a4\u30eb\u30b7\u30b9\u30c6\u30e0\u306b\u4f8b\u3048\u308b\u3068\u3001\u30eb\u30fc\u30c8\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\u76f8\u5f53\u3057\u307e\u3059\u3002Context\u306f\u3001\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u306b\u76f8\u5f53\u3057\u307e\u3059\u3002
\n\uff12\u884c\u76ee\u3068\uff13\u884c\u76ee\u3067\u3001Context\u306elookup\u3068\u3044\u3046\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3044\u3001”java:comp\/env\/jdbc\/library”\u3068\u3044\u3046\u540d\u524d\u304b\u3089DataSource\u578b\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u53d6\u5f97\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u540d\u524d\u3092\u300c\u30ea\u30bd\u30fc\u30b9\u53c2\u7167\u540d\u300d\u3068\u3044\u3044\u307e\u3059\u3002Java\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306f\u3001”java:comp\/env\/”\u3068\u3044\u3046\u6587\u5b57\u5217\u304b\u3089\u306f\u3058\u307e\u308b\u30ea\u30bd\u30fc\u30b9\u53c2\u7167\u540d\u3092\u6301\u3064\u3088\u3046\u306b\u5b9a\u3081\u3089\u308c\u3066\u3044\u307e\u3059\u3002
\n\uff14\u884c\u76ee\u3067\u3001DataSource\u578b\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u304b\u3089Connection\u3092\u53d6\u5f97\u3057\u3066\u3044\u307e\u3059\u3002
\nJDBC\u30c9\u30e9\u30a4\u30d0\u306e\u4f8b\u3068\u9055\u3063\u3066\u3001\u30c9\u30e9\u30a4\u30d0\u540d\u3084\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306eURL\u3001\u30e6\u30fc\u30b6\u540d\u3084\u30d1\u30b9\u30ef\u30fc\u30c9\u3068\u3044\u3063\u305f\u60c5\u5831\u304c\u30d7\u30ed\u30b0\u30e9\u30e0\u304b\u3089\u6d88\u3048\u3066\u3044\u307e\u3059\u3002\u3053\u3046\u3057\u305f\u60c5\u5831\u306f\u3001server.xml\u3084web.xml\u3068\u3044\u3063\u305f\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u306b\u8a18\u8ff0\u3055\u308c\u3066\u304a\u308a\u3001\u305d\u3053\u304b\u3089JNDI\u306b\u767b\u9332\u3055\u308c\u307e\u3059\u3002\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u3001\u62bd\u8c61\u7684\u306a\u300c\u540d\u524d\u300d\u304b\u3089DataSource\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u53d6\u5f97\u3059\u308b\u3060\u3051\u3067\u826f\u3044\u306e\u3067\u3059\u3002\u3082\u3057\u53d6\u308a\u6271\u3046\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u304c\u5909\u66f4\u3055\u308c\u305f\u3068\u3057\u3066\u3082\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3078\u306e\u30a2\u30af\u30bb\u30b9\u306b\u5fc5\u8981\u306a\u60c5\u5831\u306fJNDI\u306b\u767b\u9332\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u3001\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u3092\u5909\u66f4\u3059\u308b\u3060\u3051\u3067\u6e08\u307f\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u5909\u66f4\u306f\u5fc5\u8981\u3042\u308a\u307e\u305b\u3093\u3002\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u4fdd\u5b88\u6027\u304c\u9ad8\u307e\u308a\u307e\u3059\u3002
\nWeb.xml\u3000\u307e\u305a\u3001web.xml\u3067JNDI\u306e\u5229\u7528\u3092\u5ba3\u8a00\u3057\u307e\u3059\u3002
\n<resource-ref>
\n<res-ref-name>jdbc\/library<\/res-ref-name>
\n<res-type>javax.sql.DataSource<\/res-type>
\n<res-auth>Container<\/res-auth>
\n<\/resource-ref>
\nresource-ref\u3068\u3044\u3046\u8981\u7d20\u3067JNDI\u306e\u5229\u7528\u3092\u5ba3\u8a00\u3057\u3066\u3044\u307e\u3059\u3002
\n\u3053\u306e\u5b50\u8981\u7d20\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002
\nres-ref-name\u3068\u3044\u3046\u8981\u7d20\u3067\u3001\u30ea\u30bd\u30fc\u30b9\u53c2\u7167\u540d\u3092\u8a18\u8ff0\u3057\u3066\u3044\u307e\u3059\u3002JNDITestServlet.java\u3067\u306f”java:comp\/env\/jdbc\/library”\u3068\u3044\u3046\u540d\u524d\u3092\u4f7f\u3063\u3066\u3044\u307e\u3057\u305f\u3002\u3053\u306e\u540d\u524d\u304b\u3089\u3001Java\u306e\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u8b58\u5225\u306b\u4f7f\u308f\u308c\u308b”java:comp\/env\/”\u3092\u53d6\u308a\u9664\u304d\u3001\u6b8b\u3063\u305f”jdbc\/library”\u304c\u6307\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002
\nres-type\u3068\u3044\u3046\u8981\u7d20\u3067\u306f\u3001JNDI\u306b\u683c\u7d0d\u3055\u308c\u3066\u3044\u308b\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u578b\u3092\u8a18\u8ff0\u3057\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001”javax.sql.DataSource”\u3092\u6307\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002
\n\u307e\u305f\u3001res-auth\u3068\u3044\u3046\u8981\u7d20\u3067\u306f\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u8a8d\u8a3c\u3092\u3069\u3053\u3067\u884c\u3046\u304b\u6307\u5b9a\u3057\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001Web\u30b3\u30f3\u30c6\u30ca(Tomcat)\u3067\u8a8d\u8a3c\u3092\u884c\u3046\u306e\u3067\u3001”Container”\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n
server.xml \u306e\u8a2d\u5b9a
\n<Context path=”\/test” docBase=”test” reloadable=”true”>
\n<Resource name=”jdbc\/library” auth=”Container”
\ntype=”javax.sql.DataSource” \/>
\n<ResourceParams name=”jdbc\/library”>
\n<parameter>
\n<name>driverClassName<\/name>
\n<value>org.hsqldb.jdbcDriver<\/value>
\n<\/parameter>
\n<parameter>
\n<name>username<\/name>
\n<value>sa<\/value>
\n<\/parameter>
\n<parameter>
\n<name>password<\/name>
\n<value><\/value>
\n<\/parameter>
\n<parameter>
\n<name>url<\/name>
\n<value>jdbc:hsqldb:hsql:\/\/localhost<\/value>
\n<\/parameter>
\n<\/ResourceParams>
\n<\/Context>
\nTomcat \u3078\u306e\u914d\u7f6e
\nJDBCTestServlet.java\u3067\u306f\u3001JDBC\u30c9\u30e9\u30a4\u30d0\u304c\u542b\u307e\u308c\u3066\u3044\u308bhsqldb.jar\u3092WEB-INF\/lib\u306b\u30b3\u30d4\u30fc\u3057\u307e\u3057\u305f\u3002\u3057\u304b\u3057\u3001JNDITestServlet.java\u3067\u306f\u3001server.xml\u306b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u8a2d\u5b9a\u60c5\u5831\u3092\u8a18\u8ff0\u3057\u307e\u3057\u305f\u3002
\n\u305d\u3053\u3067\u3001\u5358\u306a\u308b\u4e00\u3064\u306eWeb\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3060\u3051\u3067\u306a\u304f\u3001Tomcat\u5168\u4f53\u3067\u5171\u6709\u3067\u304d\u308b\u5834\u6240\u306bhsqldb.jar\u3092\u30b3\u30d4\u30fc\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002
\n\u305d\u3053\u3067\u3001hsqldb.jar\u3092%CATALINA_HOME%\\common\\lib\u306b\u30b3\u30d4\u30fc\u3057\u307e\u3059\u3002<\/p>\n
\u2462\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u30fb\u30d7\u30fc\u30ea\u30f3\u30b0
\nConnection\u306e\u53d6\u5f97\u3068\u3044\u3046\u51e6\u7406\u306f\u3001\u6642\u9593\u304c\u304b\u304b\u308b\u300c\u91cd\u3044\u300d\u51e6\u7406\u3067\u3059\u3002
\n\u305d\u3053\u3067\u3001\u300c\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u30fb\u30d7\u30fc\u30ea\u30f3\u30b0\u300d\u3068\u3044\u3046\u624b\u6cd5\u304c\u8003\u6848\u3055\u308c\u307e\u3057\u305f\u3002\u307e\u305a\u3001\u8907\u6570\u306eConnection\u3092\u3042\u3089\u304b\u3058\u3081\u4f5c\u6210\u3057\u3066\u304a\u304d\u3001\u305f\u3081\u3066\u304a\u304d\u307e\u3059\u3002\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u3092\u5229\u7528\u3059\u308b\u3068\u304d\u3060\u3051Connection\u3092\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306b\u8cb8\u3057\u51fa\u3057\u3001
\n\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067Connection\u304cclose\u3055\u308c\u305f\u3089\u5143\u306b\u623b\u3057\u307e\u3059\u3002\u3053\u306e\u624b\u6cd5\u306b\u3088\u3063\u3066\u3001Coonection\u306f\u65b0\u305f\u306b\u4f5c\u6210\u3055\u308c\u308b\u3053\u3068\u306f\u306a\u304f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u4f7f\u3044\u307e\u308f\u3055\u308c\u307e\u3059\u3002\u7d50\u679c\u3068\u3057\u3066\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u65e9\u304f\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u3059\u3002
\n\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u30fb\u30d7\u30fc\u30ea\u30f3\u30b0\u3092\u884c\u3046\u305f\u3081\u306b\u3001Jakarta Project\u304b\u3089\u300cDBCP\u300d\u3068\u3044\u3046\u30e9\u30a4\u30d6\u30e9\u30ea\u304c\u63d0\u4f9b\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u76f4\u63a5DBCP\u306e\u30af\u30e9\u30b9\u3092\u64cd\u4f5c\u3057\u3066\u3001\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u30fb\u30d7\u30fc\u30ea\u30f3\u30b0\u306e\u6a5f\u80fd\u3092\u4f7f\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002
\n\u3057\u304b\u3057\u3001Tomcat\u306b\u306fDBCP\u304c\u65e2\u306b\u7d44\u307f\u8fbc\u307e\u308c\u3066\u304a\u308a\u3001server.xml\u3068web.xml\u3092\u5909\u66f4\u3059\u308b\u3060\u3051\u3067\u30b3\u30cd\u30af\u30b7\u30e7\u30f3\u30fb\u30d7\u30fc\u30ea\u30f3\u30b0\u3092\u5229\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n
server.xml \u306e\u8a2d\u5b9a
\nServlet\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u306f\u3001\u4e0a\u8a18\u306b\u89e3\u8aac\u3057\u305fJNDITestServlet.java\u3092\u305d\u306e\u307e\u307e\u5229\u7528\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001web.xml\u3082\u3001JNDI\u306e\u5229\u7528\u3092\u5ba3\u8a00\u3057\u305f\u30b5\u30f3\u30d7\u30eb\u3092\u305d\u306e\u307e\u307e\u5229\u7528\u3067\u304d\u307e\u3059\u3002
\n\u3053\u3053\u3067\u306f\u3001server.xml\u306b\u3064\u3044\u3066\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002
\n<Context path=”\/test” docBase=”test” reloadable=”true”>
\n<Resource name=”jdbc\/library” auth=”Container”
\ntype=”javax.sql.DataSource” \/>
\n<ResourceParams name=”jdbc\/library”>
\n<parameter>
\n<name>factory<\/name>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0JNDI\u306e\u3068\u304d\u306eserver.xml\u3068\u6bd4\u3079\u308b\u3068\u3001parameter\u306e\u6570\u304c\u5897\u3048\u3066\u3044\u307e\u3059\u3002\u65b0\u3057\u304f\u8ffd\u52a0\u3055\u308c\u305fparameter\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002
\n<value>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0factory\u3068\u3044\u3046\u8981\u7d20\u3067\u306f\u3001DataSource\u3092\u751f\u6210\u3059\u308b\u305f\u3081\u306e\u30af\u30e9\u30b9\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002
\norg.apache.commons.dbcp.BasicDataSourceFactory\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u3053\u3053\u3067\u306fDBCP\u3092\u4f7f\u3046\u306e\u3067\u3001org.apache.commons.dbcp.BasicDataSourceFactory\u3092\u6307\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002
\n<\/value>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0maxActive\u3068\u3044\u3046\u8981\u7d20\u3067\u306f\u3001\u540c\u6642\u306b\u5229\u7528\u3067\u304d\u308bConnection\u306e\u6570\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002\u3053\u306e\u6570\u3092\u8d85\u3048\u3066Connection\u3092\u5229\u7528\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u3001
\n<\/parameter>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u5225\u306e\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u304cConnection\u3092\u4f7f\u3044\u7d42\u308f\u308b\u307e\u3067\u5f85\u3064\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002
\n<parameter>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0maxWait\u3068\u3044\u3046\u8981\u7d20\u3067\u306f\u3001Connection\u306e\u5229\u7528\u3092\u5f85\u3064\u6642\u9593\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002\u5358\u4f4d\u306f\u30df\u30ea\u79d2\u3067\u3059\u3002\u3053\u3053\u3067\u306f10\u79d2\u3068\u6307\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002
\n<name>driverClassName<\/name>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0maxIdle\u3068\u3044\u3046\u8981\u7d20\u3067\u306f\u3001Connection\u306e\u5229\u7528\u304c\u306a\u3044\u72b6\u614b\u306e\u3068\u304d\u306b\u3001\u3044\u304f\u3064\u306eConnection\u3092\u305f\u3081\u3066\u304a\u304f\u304b\u3069\u3046\u304b\u8a2d\u5b9a\u3057\u307e\u3059\u3002
\n<value>org.hsqldb.jdbcDriver<\/value>
\n<\/parameter>
\n<parameter>
\n<name>username<\/name>
\n<value>sa<\/value>
\n<\/parameter>
\n<parameter>
\n<name>password<\/name>
\n<value><\/value>
\n<\/parameter>
\n<parameter>
\n<name>url<\/name>
\n<value>jdbc:hsqldb:hsql:\/\/localhost<\/value>
\n<\/parameter>
\n<parameter>
\n<name>maxActive<\/name>
\n<value>20<\/value>
\n<\/parameter>
\n<parameter>
\n<name>maxIdle<\/name>
\n<value>10<\/value>
\n<\/parameter>
\n<parameter>
\n<name>maxWait<\/name>
\n<value>10000<\/value>
\n<\/parameter>
\n<\/ResourceParams>
\n<\/Context><\/p>\n","protected":false},"excerpt":{"rendered":"
\u3044\u3044\u306d\uff01\uff01\u00a0http:\/\/www.wakhok.ac.jp\/~tomoharu\/web2004\/text\/in […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[53],"tags":[],"_links":{"self":[{"href":"https:\/\/vongg.com\/index.php?rest_route=\/wp\/v2\/posts\/987"}],"collection":[{"href":"https:\/\/vongg.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vongg.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vongg.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vongg.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=987"}],"version-history":[{"count":1,"href":"https:\/\/vongg.com\/index.php?rest_route=\/wp\/v2\/posts\/987\/revisions"}],"predecessor-version":[{"id":988,"href":"https:\/\/vongg.com\/index.php?rest_route=\/wp\/v2\/posts\/987\/revisions\/988"}],"wp:attachment":[{"href":"https:\/\/vongg.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=987"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vongg.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=987"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vongg.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=987"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}