commit d401afc5f9a53f731bc4f4c9054edfc2b81279a4 Author: Imbus <> Date: Thu Feb 8 11:39:34 2024 +0100 initial diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..e322c60 --- /dev/null +++ b/.gitignore @@ -0,0 +1,27 @@ +target +tomcat.8080 +tomcat.5000 + +# IntelliJ Idea project files +.idea +*.iml + +target/ +pom.xml.tag +pom.xml.releaseBackup +pom.xml.versionsBackup +pom.xml.next +release.properties +dependency-reduced-pom.xml +buildNumber.properties +.mvn/timing.properties +# https://github.com/takari/maven-wrapper#usage-without-binary-jar +.mvn/wrapper/maven-wrapper.jar + +# Eclipse m2e generated files +# Eclipse Core +.project +# JDT-specific (Eclipse Java Development Tools) +.classpath + +.DS_Store \ No newline at end of file diff --git a/.mvn/wrapper/maven-wrapper.properties b/.mvn/wrapper/maven-wrapper.properties new file mode 100755 index 0000000..a447c9f --- /dev/null +++ b/.mvn/wrapper/maven-wrapper.properties @@ -0,0 +1 @@ +distributionUrl=https://repo1.maven.org/maven2/org/apache/maven/apache-maven/3.5.2/apache-maven-3.5.2-bin.zip \ No newline at end of file diff --git a/mvnw b/mvnw new file mode 100755 index 0000000..e96ccd5 --- /dev/null +++ b/mvnw @@ -0,0 +1,227 @@ +#!/bin/sh +# ---------------------------------------------------------------------------- +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance +# with the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, +# software distributed under the License is distributed on an +# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +# KIND, either express or implied. See the License for the +# specific language governing permissions and limitations +# under the License. +# ---------------------------------------------------------------------------- + +# ---------------------------------------------------------------------------- +# Maven2 Start Up Batch script +# +# Required ENV vars: +# ------------------ +# JAVA_HOME - location of a JDK home dir +# +# Optional ENV vars +# ----------------- +# M2_HOME - location of maven2's installed home dir +# MAVEN_OPTS - parameters passed to the Java VM when running Maven +# e.g. to debug Maven itself, use +# set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000 +# MAVEN_SKIP_RC - flag to disable loading of mavenrc files +# ---------------------------------------------------------------------------- + +if [ -z "$MAVEN_SKIP_RC" ] ; then + + if [ -f /etc/mavenrc ] ; then + . /etc/mavenrc + fi + + if [ -f "$HOME/.mavenrc" ] ; then + . "$HOME/.mavenrc" + fi + +fi + +# OS specific support. $var _must_ be set to either true or false. +cygwin=false; +darwin=false; +mingw=false +case "`uname`" in + CYGWIN*) cygwin=true ;; + MINGW*) mingw=true;; + Darwin*) darwin=true + # Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home + # See https://developer.apple.com/library/mac/qa/qa1170/_index.html + if [ -z "$JAVA_HOME" ]; then + if [ -x "/usr/libexec/java_home" ]; then + export JAVA_HOME="`/usr/libexec/java_home`" + else + export JAVA_HOME="/Library/Java/Home" + fi + fi + ;; +esac + +if [ -z "$JAVA_HOME" ] ; then + if [ -r /etc/gentoo-release ] ; then + JAVA_HOME=`java-config --jre-home` + fi +fi + +if [ -z "$M2_HOME" ] ; then + ## resolve links - $0 may be a link to maven's home + PRG="$0" + + # need this for relative symlinks + while [ -h "$PRG" ] ; do + ls=`ls -ld "$PRG"` + link=`expr "$ls" : '.*-> \(.*\)$'` + if expr "$link" : '/.*' > /dev/null; then + PRG="$link" + else + PRG="`dirname "$PRG"`/$link" + fi + done + + saveddir=`pwd` + + M2_HOME=`dirname "$PRG"`/.. + + # make it fully qualified + M2_HOME=`cd "$M2_HOME" && pwd` + + cd "$saveddir" + # echo Using m2 at $M2_HOME +fi + +# For Cygwin, ensure paths are in UNIX format before anything is touched +if $cygwin ; then + [ -n "$M2_HOME" ] && + M2_HOME=`cygpath --unix "$M2_HOME"` + [ -n "$JAVA_HOME" ] && + JAVA_HOME=`cygpath --unix "$JAVA_HOME"` + [ -n "$CLASSPATH" ] && + CLASSPATH=`cygpath --path --unix "$CLASSPATH"` +fi + +# For Mingw, ensure paths are in UNIX format before anything is touched +if $mingw ; then + [ -n "$M2_HOME" ] && + M2_HOME="`(cd "$M2_HOME"; pwd)`" + [ -n "$JAVA_HOME" ] && + JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`" + # TODO classpath? +fi + +if [ -z "$JAVA_HOME" ]; then + javaExecutable="`which javac`" + if [ -n "$javaExecutable" ] && ! [ "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ]; then + # readlink(1) is not available as standard on Solaris 10. + readLink=`which readlink` + if [ ! `expr "$readLink" : '\([^ ]*\)'` = "no" ]; then + if $darwin ; then + javaHome="`dirname \"$javaExecutable\"`" + javaExecutable="`cd \"$javaHome\" && pwd -P`/javac" + else + javaExecutable="`readlink -f \"$javaExecutable\"`" + fi + javaHome="`dirname \"$javaExecutable\"`" + javaHome=`expr "$javaHome" : '\(.*\)/bin'` + JAVA_HOME="$javaHome" + export JAVA_HOME + fi + fi +fi + +if [ -z "$JAVACMD" ] ; then + if [ -n "$JAVA_HOME" ] ; then + if [ -x "$JAVA_HOME/jre/sh/java" ] ; then + # IBM's JDK on AIX uses strange locations for the executables + JAVACMD="$JAVA_HOME/jre/sh/java" + else + JAVACMD="$JAVA_HOME/bin/java" + fi + else + JAVACMD="`which java`" + fi +fi + +if [ ! -x "$JAVACMD" ] ; then + echo "Error: JAVA_HOME is not defined correctly." >&2 + echo " We cannot execute $JAVACMD" >&2 + exit 1 +fi + +if [ -z "$JAVA_HOME" ] ; then + echo "Warning: JAVA_HOME environment variable is not set." +fi + +CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher + +# traverses directory structure from process work directory to filesystem root +# first directory with .mvn subdirectory is considered project base directory +find_maven_basedir() { + + if [ -z "$1" ] + then + echo "Path not specified to find_maven_basedir" + return 1 + fi + + basedir="$1" + wdir="$1" + while [ "$wdir" != '/' ] ; do + if [ -d "$wdir"/.mvn ] ; then + basedir=$wdir + break + fi + # workaround for JBEAP-8937 (on Solaris 10/Sparc) + if [ -d "${wdir}" ]; then + wdir=`cd "$wdir/.."; pwd` + fi + # end of workaround + done + echo "${basedir}" +} + +# concatenates all lines of a file +concat_lines() { + if [ -f "$1" ]; then + echo "$(tr -s '\n' ' ' < "$1")" + fi +} + +BASE_DIR=`find_maven_basedir "$(pwd)"` +if [ -z "$BASE_DIR" ]; then + exit 1; +fi + +export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"} +if [ "$MVNW_VERBOSE" = true ]; then + echo $MAVEN_PROJECTBASEDIR +fi +MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS" + +# For Cygwin, switch paths to Windows format before running java +if $cygwin; then + [ -n "$M2_HOME" ] && + M2_HOME=`cygpath --path --windows "$M2_HOME"` + [ -n "$JAVA_HOME" ] && + JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"` + [ -n "$CLASSPATH" ] && + CLASSPATH=`cygpath --path --windows "$CLASSPATH"` + [ -n "$MAVEN_PROJECTBASEDIR" ] && + MAVEN_PROJECTBASEDIR=`cygpath --path --windows "$MAVEN_PROJECTBASEDIR"` +fi + +WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain + +exec "$JAVACMD" \ + $MAVEN_OPTS \ + -classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \ + "-Dmaven.home=${M2_HOME}" "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \ + ${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@" diff --git a/mvnw.cmd b/mvnw.cmd new file mode 100755 index 0000000..6a6eec3 --- /dev/null +++ b/mvnw.cmd @@ -0,0 +1,145 @@ +@REM ---------------------------------------------------------------------------- +@REM Licensed to the Apache Software Foundation (ASF) under one +@REM or more contributor license agreements. See the NOTICE file +@REM distributed with this work for additional information +@REM regarding copyright ownership. The ASF licenses this file +@REM to you under the Apache License, Version 2.0 (the +@REM "License"); you may not use this file except in compliance +@REM with the License. You may obtain a copy of the License at +@REM +@REM http://www.apache.org/licenses/LICENSE-2.0 +@REM +@REM Unless required by applicable law or agreed to in writing, +@REM software distributed under the License is distributed on an +@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +@REM KIND, either express or implied. See the License for the +@REM specific language governing permissions and limitations +@REM under the License. +@REM ---------------------------------------------------------------------------- + +@REM ---------------------------------------------------------------------------- +@REM Maven2 Start Up Batch script +@REM +@REM Required ENV vars: +@REM JAVA_HOME - location of a JDK home dir +@REM +@REM Optional ENV vars +@REM M2_HOME - location of maven2's installed home dir +@REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands +@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a key stroke before ending +@REM MAVEN_OPTS - parameters passed to the Java VM when running Maven +@REM e.g. to debug Maven itself, use +@REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000 +@REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files +@REM ---------------------------------------------------------------------------- + +@REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on' +@echo off +@REM set title of command window +title %0 +@REM enable echoing my setting MAVEN_BATCH_ECHO to 'on' +@if "%MAVEN_BATCH_ECHO%" == "on" echo %MAVEN_BATCH_ECHO% + +@REM set %HOME% to equivalent of $HOME +if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%") + +@REM Execute a user defined script before this one +if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre +@REM check for pre script, once with legacy .bat ending and once with .cmd ending +if exist "%HOME%\mavenrc_pre.bat" call "%HOME%\mavenrc_pre.bat" +if exist "%HOME%\mavenrc_pre.cmd" call "%HOME%\mavenrc_pre.cmd" +:skipRcPre + +@setlocal + +set ERROR_CODE=0 + +@REM To isolate internal variables from possible post scripts, we use another setlocal +@setlocal + +@REM ==== START VALIDATION ==== +if not "%JAVA_HOME%" == "" goto OkJHome + +echo. +echo Error: JAVA_HOME not found in your environment. >&2 +echo Please set the JAVA_HOME variable in your environment to match the >&2 +echo location of your Java installation. >&2 +echo. +goto error + +:OkJHome +if exist "%JAVA_HOME%\bin\java.exe" goto init + +echo. +echo Error: JAVA_HOME is set to an invalid directory. >&2 +echo JAVA_HOME = "%JAVA_HOME%" >&2 +echo Please set the JAVA_HOME variable in your environment to match the >&2 +echo location of your Java installation. >&2 +echo. +goto error + +@REM ==== END VALIDATION ==== + +:init + +@REM Find the project base dir, i.e. the directory that contains the folder ".mvn". +@REM Fallback to current working directory if not found. + +set MAVEN_PROJECTBASEDIR=%MAVEN_BASEDIR% +IF NOT "%MAVEN_PROJECTBASEDIR%"=="" goto endDetectBaseDir + +set EXEC_DIR=%CD% +set WDIR=%EXEC_DIR% +:findBaseDir +IF EXIST "%WDIR%"\.mvn goto baseDirFound +cd .. +IF "%WDIR%"=="%CD%" goto baseDirNotFound +set WDIR=%CD% +goto findBaseDir + +:baseDirFound +set MAVEN_PROJECTBASEDIR=%WDIR% +cd "%EXEC_DIR%" +goto endDetectBaseDir + +:baseDirNotFound +set MAVEN_PROJECTBASEDIR=%EXEC_DIR% +cd "%EXEC_DIR%" + +:endDetectBaseDir + +IF NOT EXIST "%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config" goto endReadAdditionalConfig + +@setlocal EnableExtensions EnableDelayedExpansion +for /F "usebackq delims=" %%a in ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do set JVM_CONFIG_MAVEN_PROPS=!JVM_CONFIG_MAVEN_PROPS! %%a +@endlocal & set JVM_CONFIG_MAVEN_PROPS=%JVM_CONFIG_MAVEN_PROPS% + +:endReadAdditionalConfig + +SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe" + +set WRAPPER_JAR="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar" +set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain + +%MAVEN_JAVA_EXE% %JVM_CONFIG_MAVEN_PROPS% %MAVEN_OPTS% %MAVEN_DEBUG_OPTS% -classpath %WRAPPER_JAR% "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" %WRAPPER_LAUNCHER% %MAVEN_CONFIG% %* +if ERRORLEVEL 1 goto error +goto end + +:error +set ERROR_CODE=1 + +:end +@endlocal & set ERROR_CODE=%ERROR_CODE% + +if not "%MAVEN_SKIP_RC%" == "" goto skipRcPost +@REM check for post script, once with legacy .bat ending and once with .cmd ending +if exist "%HOME%\mavenrc_post.bat" call "%HOME%\mavenrc_post.bat" +if exist "%HOME%\mavenrc_post.cmd" call "%HOME%\mavenrc_post.cmd" +:skipRcPost + +@REM pause the script if MAVEN_BATCH_PAUSE is set to 'on' +if "%MAVEN_BATCH_PAUSE%" == "on" pause + +if "%MAVEN_TERMINATE_CMD%" == "on" exit %ERROR_CODE% + +exit /B %ERROR_CODE% diff --git a/pom.xml b/pom.xml new file mode 100644 index 0000000..085a89f --- /dev/null +++ b/pom.xml @@ -0,0 +1,94 @@ + + 4.0.0 + se.lth.cs.etsf20 + lab + 1.0-SNAPSHOT + jar + ETSF20 Lab Maven Webapp + http://maven.apache.org + + 9.0.85 + 11 + 11 + + + + org.apache.tomcat.embed + tomcat-embed-core + ${tomcat.version} + + + org.apache.tomcat.embed + tomcat-embed-jasper + ${tomcat.version} + + + org.apache.tomcat + tomcat-jasper + ${tomcat.version} + + + org.apache.tomcat + tomcat-jasper-el + ${tomcat.version} + + + org.apache.tomcat + tomcat-jsp-api + ${tomcat.version} + + + + com.mysql + mysql-connector-j + 8.3.0 + + + + org.xerial + sqlite-jdbc + 3.45.1.0 + + + + + + + + org.apache.maven.plugins + maven-dependency-plugin + + + copy-dependencies + prepare-package + + copy-dependencies + + + + ${project.build.directory}/libs + + + + + + + org.apache.maven.plugins + maven-jar-plugin + + + + true + libs/ + false + + launch.Main + + + + + + + + diff --git a/src/main/java/launch/Main.java b/src/main/java/launch/Main.java new file mode 100644 index 0000000..28c023a --- /dev/null +++ b/src/main/java/launch/Main.java @@ -0,0 +1,110 @@ +package launch; + +import java.io.File; +import java.io.UnsupportedEncodingException; +import java.net.URISyntaxException; +import java.nio.file.Files; +import java.nio.file.Path; + +import org.apache.catalina.Server; +import org.apache.catalina.WebResourceRoot; +import org.apache.catalina.WebResourceSet; +import org.apache.catalina.core.StandardContext; +import org.apache.catalina.startup.Tomcat; +import org.apache.catalina.webresources.DirResourceSet; +import org.apache.catalina.webresources.EmptyResourceSet; +import org.apache.catalina.webresources.StandardRoot; + +import java.util.logging.*; + +public class Main { + + private static File getRootFolder() { + try { + File root; + String runningJarPath = Main.class.getProtectionDomain().getCodeSource().getLocation().toURI().getPath().replaceAll("\\\\", "/"); + int lastIndexOf = runningJarPath.lastIndexOf("/target/"); + if (lastIndexOf < 0) { + root = new File(""); + } else { + root = new File(runningJarPath.substring(0, lastIndexOf)); + } + System.out.println("application resolved root folder: " + root.getAbsolutePath()); + return root; + } catch (URISyntaxException ex) { + throw new RuntimeException(ex); + } + } + + private static void configureLogging() throws SecurityException, UnsupportedEncodingException { + Level level = Level.INFO; + java.util.logging.Logger logger = java.util.logging.Logger.getLogger(""); + logger.setLevel(level); + Handler[] handlers = logger.getHandlers(); + Handler handler; + if (handlers.length == 1 && handlers[0] instanceof ConsoleHandler) { + handler = handlers[0]; + } else { + handler = new ConsoleHandler(); + } + handler.setFormatter(new SimpleFormatter()); + handler.setLevel(level); + handler.setEncoding("UTF-8"); + logger.addHandler(handler); + } + + public static void main(String[] args) throws Exception { + configureLogging(); + + File root = getRootFolder(); + System.setProperty("org.apache.catalina.startup.EXIT_ON_INIT_FAILURE", "true"); + Tomcat tomcat = new Tomcat(); + + Path tempPath = Files.createTempDirectory("tomcat-base-dir"); + tomcat.setBaseDir(tempPath.toString()); + + //The port that we should run on can be set into an environment variable + //Look for that variable and default to 8080 if it isn't there. + String webPort = System.getenv("PORT"); + if (webPort == null || webPort.isEmpty()) { + webPort = "8080"; + } + + tomcat.setHostname("localhost"); + tomcat.setPort(Integer.parseInt(webPort)); + + File webContentFolder = new File(root.getAbsolutePath(), "src/main/resources/webapp"); + if (!webContentFolder.exists()) { + webContentFolder = Files.createTempDirectory("default-doc-base").toFile(); + } + StandardContext ctx = (StandardContext) tomcat.addWebapp("", webContentFolder.getAbsolutePath()); + ctx.setDocBase(webContentFolder.getAbsolutePath() + File.separator + "static"); + //Set execution independent of current thread context classloader (compatibility with exec:java mojo) + ctx.setParentClassLoader(Main.class.getClassLoader()); + + System.out.println("configuring app with basedir: " + webContentFolder.getAbsolutePath()); + + // Declare an alternative location for your "WEB-INF/classes" dir + // Servlet 3.0 annotation will work + File additionWebInfClassesFolder = new File(root.getAbsolutePath(), "target/classes"); + WebResourceRoot resources = new StandardRoot(ctx); + + WebResourceSet resourceSet; + if (additionWebInfClassesFolder.exists()) { + resourceSet = new DirResourceSet(resources, "/WEB-INF/classes", additionWebInfClassesFolder.getAbsolutePath(), "/"); + System.out.println("loading WEB-INF resources from as '" + additionWebInfClassesFolder.getAbsolutePath() + "'"); + } else { + resourceSet = new EmptyResourceSet(resources); + } + resources.addPreResources(resourceSet); + resources.addPreResources(new DirResourceSet(resources, "/WEB-INF/jsp", webContentFolder.getAbsolutePath() + File.separator + "jsp", "/")); + ctx.setResources(resources); + tomcat.getConnector(); + + tomcat.start(); + System.out.println("Listening to port " + webPort); + + Server server = tomcat.getServer(); + server.await(); + } +} diff --git a/src/main/java/model/HelloJspViewModel.java b/src/main/java/model/HelloJspViewModel.java new file mode 100644 index 0000000..84b24b8 --- /dev/null +++ b/src/main/java/model/HelloJspViewModel.java @@ -0,0 +1,14 @@ +package model; + +import java.util.List; + +public class HelloJspViewModel { + private final List data; + public HelloJspViewModel(List data) { + this.data = data; + } + + public List getData() { + return data; + } +} diff --git a/src/main/java/servlet/Database.java b/src/main/java/servlet/Database.java new file mode 100644 index 0000000..eb89056 --- /dev/null +++ b/src/main/java/servlet/Database.java @@ -0,0 +1,65 @@ +package servlet; +import java.sql.*; + +/* + * Class for managing the database. + */ +public class Database implements AutoCloseable { + + // If you have the mysql server on your own computer use "localhost" as server address. + private static String databaseServerAddress = "vm26.cs.lth.se"; + private static String databaseUser = ""; // database login user + private static String databasePassword = ""; // database login password + private static String database = ""; // the database to use, i.e. default schema + private Connection conn = null; + + public Database() { + try{ + conn = DriverManager.getConnection("jdbc:mysql://" + databaseServerAddress + "/" + + database, databaseUser, databasePassword); + + // Display the contents of the database in the console. + // This should be removed in the final version + try(Statement stmt = conn.createStatement()) { + ResultSet rs = stmt.executeQuery("select * from Respondents"); + while (rs.next()) { + String name = rs.getString("name"); + System.out.println(name); + } + } + + } catch (SQLException e) { + throw new RuntimeException(e); + } + } + + public boolean addName(String name) { + String sql = "insert into Respondents (name) values(?)"; + + try(PreparedStatement ps = conn.prepareStatement(sql)) { + ps.setString(1, name); + ps.executeUpdate(); + return true; + } catch (SQLException e) { + if(e.getErrorCode()==1062 && e.getSQLState().equals("23000")){ + // duplicate key error + System.out.println(name + " already exists in the database"); + } else { + printSqlError(e); + } + return false; + } + // Using the try-with-resources syntax, this will call ps.close() automatically + } + + private void printSqlError(SQLException e){ + System.out.println("SQLException: " + e.getMessage()); + System.out.println("SQLState: " + e.getSQLState()); + System.out.println("VendorError: " + e.getErrorCode()); + throw new RuntimeException(e); + } + + public void close() throws SQLException { + conn.close(); + } +} diff --git a/src/main/java/servlet/FormGenerator.java b/src/main/java/servlet/FormGenerator.java new file mode 100644 index 0000000..3572d2b --- /dev/null +++ b/src/main/java/servlet/FormGenerator.java @@ -0,0 +1,48 @@ +package servlet; +/* + * This class provides forms to be displayed to the user + */ +public class FormGenerator { + + + private String formElement(String par) { + return '"' + par + '"'; + } + + + /* + * Form for requesting user name + */ + public String nameRequestForm() { + String html = "Please enter your name"; + html += "

'; + html += "

'; + return html; + } + + + /* + * Form for requesting success with respect to four factors + */ + public String projectDataRequestForm() { + String[][] variables = { + {"Met operational performance", "s11"}, + {"Met technical performance", "s12"}, + {"Met project schedule", "s13"}, + {"Stayed on budget", "s14"}}; + String html = "

Please assess the importance of the following factors (1-10, where 1 is least important)"; + html += "

'; + return html; + } + +} diff --git a/src/main/java/servlet/HelloJsp.java b/src/main/java/servlet/HelloJsp.java new file mode 100644 index 0000000..8963eae --- /dev/null +++ b/src/main/java/servlet/HelloJsp.java @@ -0,0 +1,25 @@ +package servlet; + +import java.io.IOException; + +import javax.servlet.RequestDispatcher; +import javax.servlet.ServletException; +import javax.servlet.annotation.WebServlet; +import javax.servlet.http.HttpServlet; +import javax.servlet.http.HttpServletRequest; +import javax.servlet.http.HttpServletResponse; +import java.util.*; + +@WebServlet("/HelloJsp") +public class HelloJsp extends HttpServlet { + @Override + protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { + + RequestDispatcher requestDispatcher = this.getServletContext().getRequestDispatcher("/WEB-INF/jsp/example.jsp"); + + req.setAttribute("simple", "example"); + req.setAttribute("complex", new model.HelloJspViewModel(List.of(5,4,3,2,1))); + + requestDispatcher.include(req, resp); + } +} diff --git a/src/main/java/servlet/Survey.java b/src/main/java/servlet/Survey.java new file mode 100644 index 0000000..bc71a6a --- /dev/null +++ b/src/main/java/servlet/Survey.java @@ -0,0 +1,157 @@ +package servlet; + +import java.io.*; +import java.sql.SQLException; + +import javax.servlet.ServletException; +import javax.servlet.annotation.WebServlet; +import javax.servlet.http.HttpServlet; +import javax.servlet.http.HttpSession; +import javax.servlet.http.HttpServletRequest; +import javax.servlet.http.HttpServletResponse; + + + +/** + * Servlet implementation class Survey. + */ +@WebServlet("/Survey") +public class Survey extends HttpServlet { + private static final long serialVersionUID = 1L; + + // Define states + private static final int NEED_NAME = 0; + private static final int NEED_PROJECT_DATA = 2; + + private FormGenerator formGenerator = new FormGenerator(); + + + /** + * Default constructor. + */ + public Survey() { + } + + /* + * Checks first if name includes characters (i.e. is longer than zero characters) and then + * if so if the name is possible to add to + * the database. It is not possible to add an already existing name to the database. + */ + boolean nameOk(Database db, String name){ + boolean result = !name.equals(""); + if (result) + result = db.addName(name); + return result; + } + + /* + * Checks if a value entered as answer is OK. Answers should be between 1 and 10. + */ + boolean valueOk(int value){ + return value > 0 && value <11; + } + + /** + * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response) + */ + protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { + // Try with resources to create a connection, will ensure close is always called. + try(Database db = new Database()) { + + // Get the session + HttpSession session = request.getSession(true); + + int state = 0; + String name; + boolean sessionShouldBeEnded = false; + + // Decide which state the session is in + if (session.isNew()) + state = NEED_NAME; + else { + state = (Integer) session.getAttribute("state"); + } + + // Get a writer, which will be used to write the next page for the user + PrintWriter out = response.getWriter(); + + // Start the page, print the HTML header and start the body part of the page + out.println(""); + out.println(" FANTASTIC WEB APPLICATION "); + out.println(""); + + switch (state){ + case NEED_NAME: // First state: get user name + name = request.getParameter("user"); // get the string that the user entered in the form + if (name != null) { + if (nameOk(db, name)) { + session.setAttribute("name", name); // save the name in the session + state = NEED_PROJECT_DATA; + out.println(formGenerator.projectDataRequestForm()); + } + else { + out.println("That was not a valid name. Maybe it is already taken by someone else."); + out.println(formGenerator.nameRequestForm()); + } + }else{ // name was null, probably because no form has been filled out yet. Display form. + out.println(formGenerator.nameRequestForm()); + } + break; + case NEED_PROJECT_DATA: + int s11 = 0, s12 = 0, s13 = 0, s14 = 0; + name = (String) session.getAttribute("name"); + String s11String = request.getParameter("s11"); + String s14String = request.getParameter("s14"); + String s12String = request.getParameter("s12"); + String s13String = request.getParameter("s13"); + if (s11String==null) + out.println(formGenerator.projectDataRequestForm()); // first time + else { + boolean valuesOk = true; + try { + s11 = Integer.parseInt(s11String); + s12 = Integer.parseInt(s12String); + s13 = Integer.parseInt(s13String); + s14 = Integer.parseInt(s14String); + } catch (NumberFormatException e) { + valuesOk = false; + } + valuesOk = valuesOk && valueOk(s11) && valueOk(s12) && valueOk(s13) && valueOk(s14); + + // display the next page + if (valuesOk){ + int sum = s11 + s12 + s13 + s14; + // This is only to show that it is possible to do something with the values. + // It is of course meaningless to calculate the sum. + out.println("

Hello " + name); + out.println("

The sum of the values you entered is " + sum); + sessionShouldBeEnded = true; + } else { + out.println("The values you entered were not OK"); + out.println(formGenerator.projectDataRequestForm()); + } + } + break; + } + + // Save the state in the session until next time doGet is requested + session.setAttribute("state", state); + + // Print the end of the HTML-page + out.println(""); + + if (sessionShouldBeEnded) + session.invalidate(); + } catch(SQLException ex) { + // If Database.close for any reason fails. + throw new ServletException(ex); + } + } + + /** + * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) + */ + protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { + doGet(request, response); + } +} diff --git a/src/main/resources/webapp/jsp/example.jsp b/src/main/resources/webapp/jsp/example.jsp new file mode 100644 index 0000000..c1d2084 --- /dev/null +++ b/src/main/resources/webapp/jsp/example.jsp @@ -0,0 +1,16 @@ +<%@ page import="model.HelloJspViewModel" %> + + +

Hello Jsp, simple data from Servlet: <%=request.getAttribute("simple")%>

+
    + <% + HelloJspViewModel model = (HelloJspViewModel)request.getAttribute("complex"); + for(int el : model.getData()) { %> +
  1. + <%=el%> + <% out.print(":" + el); // or as ordinary java code %> +
    2. + <% } %> +
+ + diff --git a/src/main/resources/webapp/static/css/pure-min.css b/src/main/resources/webapp/static/css/pure-min.css new file mode 100644 index 0000000..acdc431 --- /dev/null +++ b/src/main/resources/webapp/static/css/pure-min.css @@ -0,0 +1,11 @@ +/*! +Pure v3.0.0 +Copyright 2013 Yahoo! +Licensed under the BSD License. +https://github.com/pure-css/pure/blob/master/LICENSE +*/ +/*! +normalize.css v | MIT License | https://necolas.github.io/normalize.css/ +Copyright (c) Nicolas Gallagher and Jonathan Neal +*/ +/*! normalize.css v8.0.1 | MIT License | github.com/necolas/normalize.css */html{line-height:1.15;-webkit-text-size-adjust:100%}body{margin:0}main{display:block}h1{font-size:2em;margin:.67em 0}hr{box-sizing:content-box;height:0;overflow:visible}pre{font-family:monospace,monospace;font-size:1em}a{background-color:transparent}abbr[title]{border-bottom:none;text-decoration:underline;-webkit-text-decoration:underline dotted;text-decoration:underline 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td{background-color:transparent}.pure-table-odd td{background-color:#f2f2f2}.pure-table-striped tr:nth-child(2n-1) td{background-color:#f2f2f2}.pure-table-bordered td{border-bottom:1px solid #cbcbcb}.pure-table-bordered tbody>tr:last-child>td{border-bottom-width:0}.pure-table-horizontal td,.pure-table-horizontal th{border-width:0 0 1px 0;border-bottom:1px solid #cbcbcb}.pure-table-horizontal tbody>tr:last-child>td{border-bottom-width:0} \ No newline at end of file diff --git a/src/main/resources/webapp/static/index.html b/src/main/resources/webapp/static/index.html new file mode 100644 index 0000000..c884673 --- /dev/null +++ b/src/main/resources/webapp/static/index.html @@ -0,0 +1,27 @@ + + + + + +the Book Store + + + +
+

the Test Site

+ + Welcome to this Fantastic Web Page. + +

The following services are available today: + +

+
+ + \ No newline at end of file