Tomcat???Web????????????

1
Tomcat???Web????????????
Servlet??(1)
????? ???? 2003?5?15?
2
?????

• Web?????????????????
• ????Web???????????????
• CGI?Servlet??????????????
• Web???????????? ??????????
• web.xml?????????????
• Servlet??????????????? ??????

3
Web??????????
??????HTTP????????????????????
Web?????????
???????Web?????????
?????? ? Web???
Web???????????????????
????????????????????? ????????Web???????
?SFC?????????
4
Web??????????
SFC??????????????? ????????????????????
???? ????????? ???? ?????????????
?????????
??????????????????Web???????????
????????????????????????????? ????????????????????
??Web?????????
???????Web?????????????????????????
5
Web???????????
??????????Web?????????
??
???? ????
??A
??
???? ????
??????HTTP????????
??B
??
???? ????
??C
????????????
??????????????????????
6
?????????????

• ???Web??????????????
• Web????Web??????????????????
• HTTP?????
• ???????????????Java????????????
• Web???????????????????
• ?Web??????????????????
• ?Web???????????????????
• Tomcat??????????????????

??????????? Tomcat
???????Web???? HTTP?????/?????????? ?????????????
7
????????

• ?????????Java??????
• ??????(??????)??HTTP??????????????
• HTTP???????????????????HTTP???????????
• ??????????????????????????

HTTP?????
java HOGE
??
??

• ???????????????????????

8
??????????
import java.io. import javax.servlet.
import javax.servlet.http. public class
HelloWorldServlet extends HttpServlet public
void doGet(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException
// ContentType???
response.setContentType("text/html
charsetShift_JIS") //
???PrintWriter??? PrintWriter out
response.getWriter() // ??
out.println("lthtmlgt")
out.println("ltheadgt")
out.println("lttitlegtHello World
Servletlt/titlegt")
out.println("lt/headgt")
out.println("ltbodygt")
out.println("Hello World")
out.println("lt/bodygt")
out.println("lt/htmlgt")
Servlet???????????????
GET????????????????? ???????
HTML??????????
HTML??????
9
Tomcat??????????????????

• ?Tomcat?????
• ?Web?????
• http//localhost8080/examples/servlet/HelloWo
  rldExample
• ?????
• ???????????????

10
??????????????HTTP?????/??????????????????
?????????GET?????????????

• ??????HTTP???????????????????

HTTP/1.1 200 OK Content-Type text/html Date
Wed, 08 May 2002 073258 GMT Server Apache
Tomcat/4.0.1-b1 (HTTP/1.1 Connector) Connection
close lthtmlgt ltbody bgcolorwhitegt lth1gtHello
World!lt/h1gt lt/bodygt lt/htmlgt ????????????????
?????????????????? ?????????????? ????????????????
11
???Web???????????
??????Web??????????????
?Web??????????????
?WEB-INF?????????
?web.xml???????
????????
??????????????
?????????????
???????????Web??????????????
12
Web??????

• TOMCAT_HOME/webapps/???????????????
• TOMCAT_HOME/webapps/Web????

Web??????????????? ???????????????
http//localhost8080/Web????/??
??Web??????????
TOMCAT_HOME/
webapps
13
Web???????????????

• Web???????????????

/Web????/WEB-INF/classes/ /WEB-INF/lib/
/WEB-INF /web.xml
/index.html

• Web??????????????? (web.xml????)

??????????? http//?????????/web????/servlet/???
? ?http//localhost8080/examples/servlet/Hello
WorldServlet index.html????? http//?????????/we
b????/index.html
14
????????

• TOMCAT_HOME/webapps/Web???????WEB-INF???????????

• ???????????????????classes?????????
• ???????????????????Web ??????????????????????????
  ???????????????????????????????

lib?????????(???????)
Web????
15
CGI?Web???????

• CGI???????Java?Web????2??????????????

/public_html
????????? ???????? ?????
taikuLogin.html
?
/cgi
taiikuLogin.cgi
2??????
?????????????Web?????????! Web??????????? CGI?????
????????????
16
???????Web???????

• ??????Java?Web?????????1??????????????????????????
  ????????????1??????????????

?
2??????
Web???????????????????????? Web??????????? ??????J
ava?Web???????????
17
Web??????

• ??????????????????WEB????????????????
  ??web.xml ?WEB-INF????????

• web.xml????Web?????????????????!
• ???????????????????
• ???????????????????????????????????????/JSP???
  ???????/JSP???????MIME?????????????????????????
  ????????????
• ??????????????????????????

??????????????
Web????
WEB-INF
classes
lib
18
web.xml???????
???????????????URL????????????????????????????????
????? ?http//localhost8080/examples/greeting..ht
ml????URL??????????????HelloWorldServlet??????????
?????????? lt?xml version"1.0"
encoding"ISO-8859-1"?gt lt!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application
2.3//EN" "http//java.sun.com/dtd/web-app_2_3.dtd"
gt ltweb-appgt ltservletgt ltservlet-namegtHello
WorldServletlt/servlet-namegt
ltservlet-classgtHelloWorldServletlt/servlet-classgt
lt/servletgt ltservlet-mappinggt
ltservlet-namegtHelloWorldServletlt/servlet-namegt
lturl-patterngt/greeting.htmllt/url-patterngt
lt/servlet-mappinggt lt/web-appgt
???????? ?????????
???????? ??????? URL??????
19
server.xml????????
server.xml??????????????????????????? Tomcat?????
????????????????Web??????????????server.xml???ltHos
tgtlt/Hostgt?????????Web??????????????????? ltHost
name"localhost" debug"0" appBase"webapps"
unpackWARs"true" autoDeploy"true"gt ltContext
path"/test" docBase"C\programing\java\test"
debug"0"/gt lt/Hostgt ?path??????URL???????????????
?docBase?????????????Web????????????????????????
??????????http//???????IP????8080/test/????UR
L?????????? C\programing\java\test
???????????Web???????????????????
????????Web?????????Tomcat????????????????????
20
??????

• 1.????????????????????????????Web??????
• ?TOMCAT_HOME/conf/web.xml ?273???278????????????
  ??????
• 2.???Web??????????????????????????????????????????
  ????????HTML????????????????????
• 3.????Web????web.xml?????
• http//localhost8080/date/clock.html
• ????????TimeServlet???????????
• ?????????????????
• 4.????Web????Tomcat?????????????????
• ???server.xml????????????????????
• ???????