Web JavaScript Java Applet Flash ActionScript CGI (C, perl, ruby ) PHP Servlet, JSP (JavaServer Pages) ASP 7-2

Size: px

Start display at page:

Download "Web JavaScript Java Applet Flash ActionScript CGI (C, perl, ruby ) PHP Servlet, JSP (JavaServer Pages) ASP 7-2"

たしろうはまもり
7 years ago
Views:

1 Servlet 7-1

2 Web JavaScript Java Applet Flash ActionScript CGI (C, perl, ruby ) PHP Servlet, JSP (JavaServer Pages) ASP 7-2

3 Servlet Java CGI Tomcat Apache+Tomcat JSP Web HTML Java Java Servlet ( ) 7-3

4 Servlet $CATALINA HOME/webapps/tomcat-docs/appdev/ sample Ant build build.properties app.name=myapp app.version=0.1-dev catalina.home=/usr/local/lib/tomcat5 manager.username=xxx manager.password=yyy Tomcat ant install 7-4

5 Ant build.xml build.properties Unix make $ ant compile # $ ant javadoc # Javadoc $ ant dist # war $ ant clean # build, dist $ ant install # Tomcat deploy ( ) $ ant reload # Tomcat deploy $ ant remove # Tomcat 7-5

6 sample sample/ +- index.html ( ) +- sample.war war ( ) +- build.xml Ant build +- build.properties Ant build +- docs/ +- README.txt ( ) +- src/ +- mypackage/ +- Hello.java +- web/ HTML, JSP +- WEB-INF/ +- web.xml +- index.html HTML +- hello.jsp JSP +- images/ +- build/ ant compile +- dist/ ant dist +- docs/ Javadoc +- myapp-0.1-dev.war war 7-6

7 web.xml <?xml version="1.0" encoding="iso "?> <web-app xmlns="  <display-name>hello, World Application</display-name> <description> This is a simple web application with a source code organization based on the recommendations of the Application Developer s Guide. </description>  <servlet> <servlet-name>helloservlet</servlet-name> <servlet-class>mypackage.hello</servlet-class> </servlet>  <servlet-mapping> <servlet-name>helloservlet</servlet-name> <url-pattern>/hello</url-pattern> </servlet-mapping> </web-app> 7-7

8 Hello.java public final class Hello extends HttpServlet { public void doget(httpservletrequest request, HttpServletResponse response) throws IOException, ServletException { response.setcontenttype("text/html"); PrintWriter writer = response.getwriter();... } } Hello /myapp/hello HttpServletRequest HttpServletResponse Hello GET doget POST dopost ( ) 7-8

9 sample2/ +- build.xml +- build.properties +- docs/ +- README.txt ( ) +- src/ +- mypackage/ +- ShowParams.java +- web/ +- WEB-INF/ +- web.xml +- index.html +- showparams.jsp ( ) +- manager/ +- index.html sample sample2 7-9

10 build.properties web.xml build.properties app.name=myapp2 app.version=0.1 catalina.home=/usr/local/lib/tomcat5 manager.username=xxx manager.password=yyy web.xml <servlet> <servlet-name>showparams</servlet-name> <servlet-class>mypackage.showparams</servlet-class> </servlet> <servlet-mapping> <servlet-name>showparams</servlet-name> <url-pattern>/showparams</url-pattern> </servlet-mapping> 7-10

11 index.html <h1>get </h1> <form method="get" action="showparams"> <dl> <dd>param1 <input name="param1" type="text"> <dd>param2 <input name="param2" type="text"> <dd><input type="submit" value="submit"> </dl> </form> <h1>post </h1> <form method="post" action="showparams"> <dl> <dd>param1 <input name="param1" type="text"> <dd>param2 <input name="param2" type="text"> <dd><input type="submit" value="submit"> </dl> </form> 7-11

12 ShowParams.java package mypackage; int accesscounter = 0; public void doget(httpservletrequest request, HttpServletResponse response) throws ServletException, IOException { // response.setcontenttype("text/html; charset=shift_jis"); PrintWriter out = response.getwriter(); // accesscounter++;... // showrequest(out, request);... // showheaders(out, request);... // // JIS showparameters(out, request, "Shift_JIS");... } 7-12

13 ShowParams.java ( ) public void dopost(httpservletrequest request, HttpServletResponse response) throws ServletException, IOException { doget(request, response); } POST 7-13

14 ShowParams.java ( ) public static void showrequest(printwriter out, HttpServletRequest request) { out.println("<li>method : " + request.getmethod()); out.println("<li>request URI : " + request.getrequesturi()); out.println("<li>protocol : " + request.getprotocol()); out.println("<li>pathinfo : " + request.getpathinfo()); out.println("<li>remote Address : " + request.getremoteaddr()); } 7-14

15 ShowParams.java ( ) public static void showheaders(printwriter out, HttpServletRequest request) { out.println("<ul>"); Enumeration e = request.getheadernames(); while (e.hasmoreelements()) { String name = (String)e.nextElement(); String value = request.getheader(name); out.println("<li>" + htmlencode(name) + " : " + htmlencode(value)); } out.println("</ul>"); } 7-15

16 ShowParams.java ( ) public static void showparameters(printwriter out, HttpServletRequest request, String encoding) { out.println("<ul>"); Enumeration e = request.getparameternames(); while (e.hasmoreelements()) { String name = (String)e.nextElement(); String value = request.getparameter(name); value = decodeparameter(value, encoding); out.println("<li>" + htmlencode(name) + " : " + htmlencode(value)); } out.println("</ul>"); } 7-16

17 ShowParams.java ( ) public static String decodeparameter(string param, String encoding) { if (param == null param.equals("")) return param; try { param = new String(param.getBytes("iso "), encoding); } catch (UnsupportedEncodingException e) { } return param; } decodeparameter encoding Unicode (encoding JISAutoDetect ) request.setcharacterencoding("shift JIS") GET 7-17

18 ShowParams.java ( ) public static String htmlencode(string str) { return str.replaceall("[\\x00-\\x1f]", " ").replaceall("&", "&").replaceall("<", "<").replaceall(">", ">").replaceall("\"", """); } htmlencode ( ) 7-18

19 (session) ID ( ) ID 7-19

20 ( ) // HttpSession session = request.getsession(true); // Vector cart = (Vector)session.getAttribute("cart"); // if (cart == null) { cart = new Vector(); } // String item = request.getparameter("item"); cart.add(item); // session.setattribute("cart", cart); 7-20

21 setattribute, getattribute ( ) / JSP EL Servlet JSP : (forward ) : : (ServletContext ) 7-21

22 Tomcat Basic Digest Web Form SSL ID (, realm) : conf/tomcat-users.xml JDBC : JDBC RDB JNDI : LDAP 7-22

23 Tomcat Basic/Digest WEB-INF/web.xml <security-constraint> <web-resource-collection> <web-resource-name>manager pages</web-resource-name> <url-pattern>/manager/*</url-pattern>  </web-resource-collection> <auth-constraint> <role-name>manager</role-name>  </auth-constraint> </security-constraint> <login-config> <auth-method>basic</auth-method>  <realm-name>manager pages</realm-name> </login-config> <security-role> <role-name>manager</role-name> </security-role> 7-23

24 Tomcat Form (login- WEB-INF/web.xml config ) login.jsp error.jsp <login-config> <auth-method>form</auth-method> <realm-name>manager pages</realm-name> <form-login-config> <form-login-page>/login.jsp</form-login-page> <form-error-page>/error.jsp</form-error-page> </form-login-config> </login-config> 7-24

25 Tomcat Form ( ) login.jsp <%@ page language="java" contenttype="text/html; charset=shift_jis" %> <html> <head> <title>login</title> </head> <body> <form method="post" action= <%= response.encodeurl("j_security_check") %> > <ul> <li> ID <input type="text" name="j_username"> <li> <input type="password" name="j_password"> <li><input type="submit" value="login"> </ul> </form> </body> </html> 7-25

26 myapp myapp2 7-26

メディプロ1 Javaサーブレット補足資料.ppt

メディプロ1 Javaサーブレット補足資料.ppt メディアプロジェクト演習 1 Java サーブレット補足資料 CGI の基本 CGI と Java サーブレットの違い Java サーブレットの基本インタラクティブな Web サイトとは Interactive q 対話または双方向 q クライアントとシステムが画面を通して対話を行う形式で操作を行っていく仕組み利用用途 Web サイト, シミュレーションシステム, ゲームなど WWW = インタラクティブなメディア