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1 Servlet/JSP

2 Web Servlet/JSP JSP EL page request session application out request session application response Tomcat

........................................ 13 3.2 request........................................ 13 3.3 session........................................ 14 3.4 application...................................... 14 4 15 4.

3 2 5.2 Servlet/JSP web.xml context.xml

4 context.xml..................................... 24

3 1 1.1 Web Web Web. Web HTTP, HTML XML. Web, /. Web,., (HTML XML ).

4 Web Web Web. Web HTTP, HTML XML. Web, /. Web,., (HTML XML ). 1.2 Servlet/JSP Web Java. Servlet Java HTML, JSP HTML Java.

5 4 1 public class SampleServlet extends HttpServlet { public void doget(httpservletrequest request, HttpServletResponse response) throws ServletException, IOException { response.setcontenttype( text/html; charset=utf-8 ); PrintWriter out = response.getwriter(); out.println( <html> ); out.println( <head> ); out.println( <title>loop </title> ); out.println( </head> ); out.println( <body> ); for (int i=1; i<=5; i++) { out.print( ); out.print( i ); out.println( ); } out.println( </body> ); out.println( </html> ); } } page language= page contenttype= text/html; charset=utf-8 <html> <head> <title>loop </title> </head> <body> for (int i=1; i<=5; i++) { = i } </body> </html> JSP <html> <head> <title>loop </title> </head> <body> 1 2

println( <body> ); for (int i=1; i<=5; i++) { out.print( <p> ); out.print( i ); out.println( </p> ); } out.println( </body> ); out.

6 1.2. Servlet/JSP 5 3 4 5 </body> </html> HTML

7 2 JSP HTML.jsp JSP ( ). Java,. 2.1 JSP.. @ 1= 1 2= 2...., UTF-8 HTML.

8 7 2 JSP HTML.jsp JSP ( ). Java, = 1 2= 2...., UTF-8 page contenttype= text/html; charset=utf-8 page language= page contenttype= text/html; charset=utf-8! // // int count = 0;

@ page contenttype= text/html; charset=utf-8 2.2!,,.

9 8 2 JSP // 1 count++; <html> <head> <title> </title> </head> <body>= count.</body> </html> (test01.jsp) 2.3, JSP Java. JSP, if page language= page contenttype= text/html; charset=utf-8 // // int count = 0; // 1 count++; <html> <head> <title> </title> </head> <body>= count.</body> </html> (test02.jsp) 2.4 = (Expression),.

10 2.5. EL page language= page contenttype= text/html; charset=utf-8 // String str = ; java.util.list<string> list = new java.util.arraylist<string>(); list.add( ); list.add( ); session.setattribute( list, list); java.util.map<string, String> map = new java.util.hashmap<string, String>(); map.put( str1, ); map.put( str2, ); request.setattribute( map, map); <html> <head> <title> </title> </head> <body> [= str ] [= 2 * 5 ] [= ((java.util.list<string>)session.getattribute( list )).get(0) ] [= ((java.util.map<string, String>)request.getAttribute( map )).get( str1 ) ] </body> </html> (test03 1.jsp) 2.5 EL ${ } EL (Expression Language), ( ). page language= page contenttype= text/html; charset=utf-8 // String str = ; pagecontext.setattribute( str, str); java.util.list<string> list = new java.util.arraylist<string>(); list.add( ); list.add( ); session.setattribute( list, list); java.util.map<string, String> map = new java.util.hashmap<string, String>(); map.put( str1, );

setattribute( map, map); <html> <head> <title> </title> </head> <body> [= str ]<br /> [= 2 * 5 ]<br /> [= ((java.util.list<string>)session.getattribute( list )).get(0) ]<br /> [= ((java.util.map<string, String>)request.

11 10 2 JSP map.put( str2, ); request.setattribute( map, map); <html> <head> <title>el </title> </head> <body> [${ pagescope.str }] [${ str }] [${ 2 * 5 }] [${ sessionscope.list[0] }] [${ list[0] }] [${ requestscope.map.str1 }] [${ map.str1 }] </body> </html> (test03 2.jsp) < 1= 1 2= 2... > </ > < 1= 1 2= 2... />., to.jsp. <jsp:forward page= to.jsp /> ,. // /* */,.

12 /* out.println( ); */ - - out.println( ); - -

13 3,.,.. 3.1 page JSP. JSP.. 3.2 request HTTP.

14 13 3,., page JSP. JSP request HTTP. 1) 2) Servlet JSP 3) HTTP. Servlet JSP page, forward.

15 session PC.,. HTTP, Cookie URL PC,. 3.4 application Web.,.

16 15 4 JSP page language= page contenttype= text/html; charset=utf-8 <html> <head> <title> -out-</title> </head> <body> 3. out.print( ); = </body> </html> (test04.jsp)

16 4 4.2 request, Cookie HTTP. request.. @ page language= java @ page contenttype= text/html; charset=utf-8 <html> <head> <title> -request-</title> </head> <body> <form action=./test06.

17 request, Cookie HTTP. page language= page contenttype= text/html; charset=utf-8 <html> <head> <title> -request-</title> </head> <body> <form action=./test06.jsp method= post > <input type= text name= loginname /> <input type= submit value= /> </form> </body> </html> page language= page contenttype= text/html; charset=utf-8 // request.setcharacterencoding( UTF-8 ); // String name = request.getparameter( loginname ); <html> <head> <title> -request-</title> </head> <body>

. @ page language= java @ page contenttype= text/html; charset=utf-8 <html> <head> <title> -request-</title> </head> <body> <form

18 4.3. session 17! = name. </body> </html> (test06.jsp) 4.3 session page language= page contenttype= text/html; charset=utf-8 // session Integer count = (Integer)session.getAttribute( COUNT ); if(null == count) { count = Integer.valueOf(0); } // 1 count = Integer.valueOf(count.intValue() + 1); // session session.setattribute( COUNT, count); <html> <head> <title> -session-</title> </head> <body> test08.jsp = count.intvalue(). </body> </html> (test07.jsp)

getAttribute( COUNT ); if(null == count) { count = Integer.valueOf(0); } // 1 count = Integer.valueOf(count.

18 4 @ page language= java @ page contenttype= text/html; charset=utf-8 // session Integer count = (Integer)session.getAttribute( COUNT ); if(null == count) { count = Integer.

19 18 page language= page contenttype= text/html; charset=utf-8 // session Integer count = (Integer)session.getAttribute( COUNT ); if(null == count) { count = Integer.valueOf(0); } // 1 count = Integer.valueOf(count.intValue() + 1); // session session.setattribute( COUNT, count); <html> <head> <title> -session-</title> </head> <body> test07.jsp = count.intvalue(). </body> </html> (test08.jsp) 4.4 application page language= page contenttype= text/html; charset=utf-8 // application Integer count = (Integer)application.getAttribute( COUNT ); if(null == count) { count = Integer.valueOf(0); } // 1 count = Integer.valueOf(count.intValue() + 1);

setattribute( COUNT, count); <html> <head> <title> -session-</title> </head> <body> test07.jsp <br /> = count.intvalue(). </body> </html> (test08.jsp) 4.

20 4.5. response 19 // application application.setattribute( COUNT, count); <html> <head> <title> -application-</title> </head> <body> test10.jsp = count.intvalue(). </body> </html> page language= page contenttype= text/html; charset=utf-8 // application Integer count = (Integer)application.getAttribute( COUNT ); if(null == count) { count = Integer.valueOf(0); } // 1 count = Integer.valueOf(count.intValue() + 1); // application application.setattribute( COUNT, count); <html> <head> <title> -application-</title> </head> <body> test09.jsp = count.intvalue(). </body> </html> (test10.jsp) 4.5 response. out, out, response. Cookie.

getAttribute( COUNT ); if(null == count) { count = Integer.valueOf(0); } // 1 count = Integer.valueOf(count.intValue() + 1); // application application.

20 4. @ page language= java @ page contenttype= text/html; charset=utf-8 // // ( ) Cookie cook = new Cookie( test key, test value );

21 20 page language= page contenttype= text/html; charset=utf-8 // // ( ) Cookie cook = new Cookie( test key, test value ); cook.setmaxage(-1); // response.addcookie(cook); <html> <head> <title> -response-</title> </head> <body>cookie.</body> </html> (test11.jsp)

22 21 5 Tomcat Servlet JSP. Jakarta, Apache Tomcat Project. Apache License, Version2.0. Web,. 5.1 Tomcat.. bin Tomcat common conf

23 22 5 Tomcat logs webapps work JSP java/class, webapps. webapps. 5.2 Servlet/JSP META-INF. WEB-INF,. classes, jar lib, web.xml,. html js, css JSP..,. 1 war jar war..

24 5.3. web.xml 23 jar cvf c : v : f : D:Y=app1, C:Y=> D: D:Y=> cd app1 D:Y=app1> dir 2010/04/01 10:00 <DIR> META-INF 2010/04/01 10: index.jsp 2010/04/01 10:00 1,011 file2.jsp 2010/04/01 10:00 <DIR> WEB-INF D:Y=app1> jar cvf app1.war * D:Y=app1> app1.war. 2 webapps war webapps. 3 Tomcat %CATALINA HOME%/bin/startup.bat Tomcat. #%CATALINA HOME% Tomcat Tomcat %CATALINA HOME%/bin/shutdown.bat Tomcat. 5.3 web.xml. filter( ) listener(

25 24 5 Tomcat ), context-param( ). Servlet,. <web-app> <servlet> <servlet-name>testservlet</servlet-name> <servlet-class>package.testservlet</servlet-class> </servlet> <servlet-mapping> <servlet-name>testservlet</servlet-name> <url-pattern>/test.do</url-pattern> </servlet-mapping> </web-app> servlet servlet-name Servlet ( ) servlet-class Servlet servlet-mapping servlet-name URL Servlet url-pattern URL, /test.do, package.testservlet( dopost do- Get). 5.4 context.xml Web.. <Context> <! > <Resource name= jdbc/ossmc auth= Container type= javax.sql.datasource factory= org.apache.commons.dbcp.basicdatasourcefactory driverclassname= org.postgresql.driver username= user password= passwd

26 5.4. context.xml 25 url= jdbc:postgresql:// :5432/db name maxactive= 10 maxidle= 5 maxwait= -1 /> </Context>

... 2 1 Servlet... 3 1.1... 3 1.2... 4 2 JSP... 6 2.1... 6 JSP... 6... 8 2.2... 9 - Servlet/JSP における日本語の処理 - 1

Servlet/JSP Creation Date: Oct 18, 2000 Last Update: Mar 29, 2001 Version: 1.1 ... 2 1 Servlet... 3 1.1... 3 1.2... 4 2 JSP... 6 2.1... 6 JSP... 6... 8 2.2... 9 - Servlet/JSP における日本語の処理 - 1 Servlet