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Tilman Walther
2012-02-10 22:42:30 +01:00
commit 115bd4d29f
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Notes.txt
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cd /Users/tilman/.m2/repository/hsqldb/hsqldb/1.8.0.10/
java -cp hsqldb-1.8.0.10.jar org.hsqldb.util.DatabaseManager
jdbc:hsqldb:file:/Volumes/hidrive-mirror/Dokumente/Finanzen/Ausgaben-Datenbank/database/db
sa
Export nach OOo Calc
SELECT "Datum", "Name", "Betrag", "Beschreibung" FROM "Transaktionen" JOIN "Kategorien" ON "Kategorien"."ID" = "Transaktionen"."Kategorie" ORDER BY "Datum" ASC
Starten:
#!/bin/sh
cd /media/usb/hidrive/Dokumente/Finanzen/Ausgaben-Datenbank/database
screen -S HSQLDB sudo -u nobody java -Duser.timezone=Europe/Berlin -cp hsqldb-1.8.0.10.jar org.hsqldb.Server -database.0 file:db -dbname.0 transaktionen
cd /media/usb/hidrive/Dokumente/Finanzen/Ausgaben-Datenbank
screen -S Transaktionen sudo -u nobody java -Duser.timezone=Europe/Berlin -jar transaktionen.jar
Transaktion einfügen und ID zurückliefern
INSERT INTO "Transaktionen" ("ID", "Datum", "Kategorie", "Betrag", "Beschreibung") VALUES (null, CURDATE(), 32, 1.99, 'Test');
CALL IDENTITY();
Letzte Transaktion
SELECT * FROM "Transaktionen" WHERE id=(SELECT Max(id) FROM "Transaktionen")
Export
SELECT "Datum", "Name", "Betrag", "Beschreibung" FROM "Transaktionen" JOIN "Kategorien" ON "Kategorien".ID="Transaktionen"."Kategorie"
Letzte 10 Transaktionen
SELECT * FROM "Transaktionen" ORDER BY ID desc LIMIT 10
SELECT * FROM "Transaktionen" WHERE "Datum">'2011-01-01'
SELECT "ID", "Datum", "Kategorie", "Betrag", "Beschreibung" FROM "Transaktionen" ORDER BY "Datum" desc, "ID" desc LIMIT 10
UPDATE "Transaktionen" SET "Datum"='2011-11-08' WHERE "ID"=930
UPDATE "Transaktionen" SET "Beschreibung"='Aufladung MyCard' WHERE "ID"=990
DELETE FROM "Transaktionen" WHERE "ID"=999
UPDATE "Transaktionen_Tilman" SET "Kategorie"=19 WHERE "ID"=15
screen -S Transaktionen sudo -u nobody java -Duser.timezone=Europe/Berlin -cp hsqldb-1.8.0.10.jar org.hsqldb.Server -database.0 file:db -dbname.0 transaktionen
CREATE CACHED TABLE "Kategorien_Tilman"("ID" INTEGER GENERATED BY DEFAULT AS IDENTITY(START WITH 0) NOT NULL PRIMARY KEY,"Name" VARCHAR(255) NOT NULL);
CREATE CACHED TABLE "Transaktionen_Tilman"("ID" INTEGER GENERATED BY DEFAULT AS IDENTITY(START WITH 0) NOT NULL PRIMARY KEY,"Datum" DATE NOT NULL,"Kategorie" INTEGER NOT NULL,"Betrag" DECIMAL(50,2) NOT NULL,"Beschreibung" VARCHAR(255));
ALTER TABLE "Transaktionen" ADD "Auslage" INTEGER DEFAULT 0 NOT NULL;
INSERT INTO "Kategorien_Tilman" VALUES (null, 'Freizeit - Sport')
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database/db.properties
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#HSQL Database Engine 1.8.0.10
#Thu Dec 22 13:18:48 CET 2011
hsqldb.script_format=0
runtime.gc_interval=0
sql.enforce_strict_size=true
hsqldb.cache_size_scale=8
readonly=false
hsqldb.nio_data_file=false
hsqldb.cache_scale=13
version=1.8.0
hsqldb.default_table_type=cached
hsqldb.cache_file_scale=1
hsqldb.lock_file=true
hsqldb.log_size=10
modified=yes
hsqldb.cache_version=1.7.0
hsqldb.original_version=1.8.0
hsqldb.compatible_version=1.8.0
database/db.script
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SET DATABASE COLLATION "German"
CREATE SCHEMA PUBLIC AUTHORIZATION DBA
CREATE CACHED TABLE "Kategorien"("ID" INTEGER GENERATED BY DEFAULT AS IDENTITY(START WITH 0) NOT NULL PRIMARY KEY,"Name" VARCHAR(255) NOT NULL)
CREATE CACHED TABLE "Transaktionen"("ID" INTEGER GENERATED BY DEFAULT AS IDENTITY(START WITH 0) NOT NULL PRIMARY KEY,"Datum" DATE NOT NULL,"Kategorie" INTEGER NOT NULL,"Betrag" DECIMAL(50,2) NOT NULL,"Beschreibung" VARCHAR(255),"Auslage" INTEGER DEFAULT 0 NOT NULL)
CREATE CACHED TABLE "Kategorien_Tilman"("ID" INTEGER GENERATED BY DEFAULT AS IDENTITY(START WITH 0) NOT NULL PRIMARY KEY,"Name" VARCHAR(255) NOT NULL)
CREATE CACHED TABLE "Transaktionen_Tilman"("ID" INTEGER GENERATED BY DEFAULT AS IDENTITY(START WITH 0) NOT NULL PRIMARY KEY,"Datum" DATE NOT NULL,"Kategorie" INTEGER NOT NULL,"Betrag" DECIMAL(50,2) NOT NULL,"Beschreibung" VARCHAR(255),"Auslage" INTEGER DEFAULT 0 NOT NULL)
SET TABLE "Kategorien" INDEX'108664 37'
SET TABLE "Transaktionen" INDEX'128352 763'
SET TABLE "Kategorien_Tilman" INDEX'163952 2'
SET TABLE "Transaktionen_Tilman" INDEX'164120 3'
ALTER TABLE "Kategorien" ALTER COLUMN "ID" RESTART WITH 37
ALTER TABLE "Transaktionen" ALTER COLUMN "ID" RESTART WITH 763
ALTER TABLE "Kategorien_Tilman" ALTER COLUMN "ID" RESTART WITH 2
ALTER TABLE "Transaktionen_Tilman" ALTER COLUMN "ID" RESTART WITH 3
CREATE USER SA PASSWORD ""
GRANT DBA TO SA
SET WRITE_DELAY 60
pom.xml
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>Transaktionen</groupId>
<artifactId>Transaktionen</artifactId>
<version>0.0.1-SNAPSHOT</version>
<build>
<plugins>
<plugin>
<groupId>org.mortbay.jetty</groupId>
<artifactId>jetty-maven-plugin</artifactId>
<version>8.0.1.v20110908</version>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.2</version>
<executions>
<execution><goals><goal>java</goal></goals></execution>
</executions>
<configuration>
<mainClass>org.example.HelloWorld</mainClass>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.14</version>
<type>jar</type>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.mortbay.jetty</groupId>
<artifactId>jetty-embedded</artifactId>
<version>6.1.26</version>
<type>jar</type>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>hsqldb</groupId>
<artifactId>hsqldb</artifactId>
<version>1.8.0.10</version>
<type>jar</type>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.0.1</version>
<type>jar</type>
<scope>compile</scope>
</dependency>
</dependencies>
</project>
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src/main/java/de/tilman/transactions/DatabaseController.java
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package de.tilman.transactions;
import java.math.BigDecimal;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.LinkedList;
import java.util.Map;
import java.util.SortedMap;
import java.util.TreeMap;
import org.apache.log4j.Logger;
public class DatabaseController {
private final static Logger log = Logger.getLogger(DatabaseController.class);
final String DB_TREIBER = "org.hsqldb.jdbcDriver";
// final String DB_URL = "jdbc:hsqldb:file:database/db;ifexists=true;shutdown=true"; // embedded mode, für Testzwecke
final String DB_URL = "jdbc:hsqldb:hsql://localhost/transaktionen"; // Datenbank läuft separat im server mode
final String DB_LOGIN = "sa";
final String DB_PASSWORT = "";
String tblTransactions = "Transaktionen";
String tblCategories = "Kategorien";
Connection connection;
Statement statement;
PreparedStatement selectCategoriesSql;
PreparedStatement insertTransactionSql;
PreparedStatement getLastIdSql;
ResultSet resultSet;
String path;
boolean hasAuslagen;
public DatabaseController(String tblTransactions, String tblCategories, String path, boolean hasAuslagen) throws Exception {
this.tblTransactions = tblTransactions;
this.tblCategories = tblCategories;
this.path = path;
this.hasAuslagen = hasAuslagen;
Class.forName("org.hsqldb.jdbcDriver");
connection = DriverManager.getConnection(DB_URL, DB_LOGIN, DB_PASSWORT);
statement = connection.createStatement();
// prepare SQL statements
selectCategoriesSql = connection.prepareCall("SELECT * FROM \""+tblCategories+"\" ORDER BY \"ID\" asc");
insertTransactionSql = connection.prepareCall("INSERT INTO \""+tblTransactions+"\" (\"ID\", \"Datum\", \"Kategorie\", \"Betrag\", \"Beschreibung\", \"Auslage\") VALUES (null,?,?,?,?,?)");
}
public SortedMap<Integer, String> getCategories() throws SQLException {
resultSet = selectCategoriesSql.executeQuery();
TreeMap<Integer, String> categoryMap = new TreeMap<Integer, String>();
while (resultSet.next()) {
categoryMap.put(resultSet.getInt(1), resultSet.getString(2));
}
return categoryMap;
}
public int writeTransaction(Transaktion transaction) throws SQLException {
insertTransactionSql.setBigDecimal(3, transaction.betrag);
insertTransactionSql.setInt(2, transaction.kategorie);
insertTransactionSql.setDate(1, new java.sql.Date(transaction.datum.getTime()));
insertTransactionSql.setString(4, transaction.beschreibung);
insertTransactionSql.setInt(5, transaction.auslage);
insertTransactionSql.execute();
// return the ID of the new row
resultSet = statement.executeQuery("CALL IDENTITY();");
resultSet.next();
int lastId = resultSet.getInt(1);
log.info("written transaction with ID " + lastId);
return lastId;
}
public void deleteTransaction(int id) throws SQLException {
log.info("delete transaction #" + id);
statement.execute("DELETE FROM \""+tblTransactions+"\" WHERE id=" + id);
}
public Transaktion getLastTransaction() throws SQLException {
resultSet = statement.executeQuery("SELECT \"ID\", \"Datum\", \"Kategorie\", \"Betrag\", \"Beschreibung\", \"Auslage\" FROM \""+tblTransactions+"\" WHERE id = (SELECT Max(id) FROM \""+tblTransactions+"\");");
resultSet.next();
return new Transaktion(resultSet.getInt(1), resultSet.getBigDecimal(4), resultSet.getInt(3), resultSet.getDate(2), resultSet.getString(5), resultSet.getInt(6));
}
public LinkedList<Transaktion> getLastTransactions(int num) throws SQLException {
LinkedList<Transaktion> list = new LinkedList<Transaktion>();
Map<Integer, String> categories = getCategories();
resultSet = statement.executeQuery("SELECT \"ID\", \"Datum\", \"Kategorie\", \"Betrag\", \"Beschreibung\", \"Auslage\" FROM \""+tblTransactions+"\" ORDER BY \"Datum\" desc, \"ID\" desc LIMIT " + num);
while (resultSet.next()) {
Transaktion trns = new Transaktion(resultSet.getInt(1), resultSet.getBigDecimal(4), resultSet.getInt(3), categories.get(resultSet.getInt(3)), resultSet.getDate(2), resultSet.getString(5), resultSet.getInt(6));
list.push(trns);
}
return list;
}
public BigDecimal getSumExpenses(int id) throws SQLException {
resultSet = statement.executeQuery("SELECT SUM(\"Betrag\") FROM \"" + tblTransactions + "\" WHERE \"Auslage\"=" + id);
resultSet.next();
BigDecimal result = resultSet.getBigDecimal(1);
if (result == null)
return new BigDecimal(0);
return result;
}
public void resetExpenses(int id) throws SQLException {
log.info("resetting expenses for ID " + id);
statement.execute("UPDATE \"Transaktionen\" SET \"Auslage\"=0 WHERE \"Auslage\"=" + id);
}
public void close() throws SQLException {
selectCategoriesSql.close();
insertTransactionSql.close();
log.info("shutting down database");
statement.execute("SHUTDOWN COMPACT");
statement.close();
connection.close();
log.info("database closed");
}
}
src/main/java/de/tilman/transactions/Service.java
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package de.tilman.transactions;
import java.io.IOException;
import java.io.PrintWriter;
import java.math.BigDecimal;
import java.sql.SQLException;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Random;
import java.util.SortedMap;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.lang3.StringEscapeUtils;
import org.apache.commons.lang3.StringUtils;
import org.apache.log4j.BasicConfigurator;
import org.apache.log4j.ConsoleAppender;
import org.apache.log4j.Logger;
import org.apache.log4j.PatternLayout;
import org.mortbay.jetty.Handler;
import org.mortbay.jetty.Server;
import org.mortbay.jetty.handler.DefaultHandler;
import org.mortbay.jetty.handler.HandlerList;
import org.mortbay.jetty.handler.ResourceHandler;
import org.mortbay.jetty.servlet.Context;
import org.mortbay.jetty.servlet.ServletHolder;
import org.mortbay.thread.QueuedThreadPool;
public class Service {
private final static Logger log = Logger.getLogger(Service.class);
private static int hostPort = 8080;
protected Server jetty;
private static SimpleDateFormat formatter = new SimpleDateFormat("dd.MM.yyyy");
private Random rnd = new Random();
public void start() {
BasicConfigurator.configure(new ConsoleAppender(new PatternLayout("%d{ISO8601} - %m%n")));
try {
log.info("open database");
DatabaseController database = new DatabaseController("Transaktionen", "Kategorien", "/input", true);
log.info("add shutdown hook for database");
Runtime.getRuntime().addShutdownHook(new ShutdownThread(database));
DatabaseController databaseTilman = new DatabaseController("Transaktionen_Tilman", "Kategorien_Tilman", "/tilman", false);
jetty = new Server(hostPort);
jetty.setThreadPool(new QueuedThreadPool(10));
Context inputContext = new Context(jetty, "/", Context.SESSIONS);
inputContext.addServlet(new ServletHolder(new ReadServlet(database)), "/input");
inputContext.addServlet(new ServletHolder(new StatsServlet(database)), "/input/last");
inputContext.addServlet(new ServletHolder(new CsvServlet(database)), "/input/csv");
inputContext.addServlet(new ServletHolder(new ReadServlet(databaseTilman)), "/tilman");
inputContext.addServlet(new ServletHolder(new StatsServlet(databaseTilman)), "/tilman/last");
inputContext.addServlet(new ServletHolder(new CsvServlet(databaseTilman)), "/tilman/csv");
ResourceHandler resourceHandler = new ResourceHandler();
resourceHandler.setResourceBase("resources");
log.info("serving " + resourceHandler.getBaseResource());
HandlerList handlers = new HandlerList();
handlers.setHandlers(new Handler[] { resourceHandler, inputContext, new DefaultHandler() });
jetty.setHandler(handlers);
jetty.start();
jetty.join();
log.info("Listening at " + hostPort);
} catch (Exception e) {
e.printStackTrace();
log.fatal("Failed to start on port " + hostPort + ", reason: " + e.getMessage());
}
}
protected static void writeHeader(PrintWriter out) {
out.println("<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">\n" +
"<html xmlns='http://www.w3.org/1999/xhtml'>" +
"<head><title>Ausgaben</title>" +
"<meta http-equiv=\"content-type\" " +
"content=\"text/html; charset=utf-8\" />");
out.println("<meta name='viewport' content='width=360'/>");
out.println("<meta name='apple-mobile-web-app-capable' content='yes' />");
out.println("<link rel='apple-touch-icon' href='/icon.png'/>");
out.println("<style type='text/css'>\na:link { color:darkred; }\na:visited { color:darkred; }\n</style>");
out.println("</head><body style='font-family:Arial;sans-serif;'>"); // onload='document.forms[0].betrag.focus()'
}
protected static void writeFooter(PrintWriter out) {
out.println("</body></html>");
out.close();
}
protected static void showTable(DatabaseController database, int num, PrintWriter out) throws ServletException {
out.println("<table border='1' cellpadding='3' style='margin:auto; margin-top: 2em; font-size: 80%; border-collapse:collapse;'>");
out.println("<tr><th>Datum</th><th>Kategorie</th><th>Betrag</th><th>Beschreibung</th></tr>");
LinkedList<Transaktion> transactions = null;
try {
transactions = database.getLastTransactions(num);
} catch (SQLException se) {
throw new ServletException(se);
}
while (!transactions.isEmpty()) {
Transaktion t = transactions.removeLast();
out.println("<tr><td>" + formatter.format(t.datum) + "</td><td>" + StringEscapeUtils.escapeHtml4(t.kategorieName) + "</td><td align=\"right\" " + ((t.auslage > 0) ? "style=\"background-color: #ccddff;\">" : ">") + t.betrag.toPlainString() + "&nbsp;€</td><td>" + ((t.beschreibung == null) ? "" : StringEscapeUtils.escapeHtml4(t.beschreibung)) + "</td></tr>");
}
out.println("</table>");
}
public class ReadServlet extends HttpServlet {
private static final long serialVersionUID = 1572581546682459768L;
private int undoChallenge = -1;
private int auslagenChallenge = -1;
private int lastId = -1;
private DatabaseController database;
public ReadServlet(DatabaseController database) {
super();
this.database = database;
}
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html;charset=utf-8");
response.setStatus(HttpServletResponse.SC_OK);
PrintWriter out = response.getWriter();
writeHeader(out);
if (request.getParameter("chl") != null) {
if ((undoChallenge == Integer.parseInt(request.getParameter("chl"))) && (lastId == Integer.parseInt(request.getParameter("del")))) {
try {
database.deleteTransaction(lastId);
} catch (SQLException se) {
throw new ServletException(se);
}
showMessage(out, "Transaktion gelöscht.");
}
else if (auslagenChallenge == Integer.parseInt(request.getParameter("chl"))) {
try {
database.resetExpenses(Integer.parseInt(request.getParameter("id")));
} catch (SQLException se) {
throw new ServletException(se);
}
showMessage(out, "Auslagen zurückgesetzt.");
}
undoChallenge = -1;
auslagenChallenge = -1;
}
showInputForm(out);
showTable(database, 10, out);
showAuslagen(out);
writeFooter(out);
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html;charset=utf-8");
boolean error = false;
String errorMessage = null;
// der Betrag kann mit Punkt oder Komma als Dezimalzeichen eingegeben werden
String betragStr = StringUtils.replaceChars(request.getParameter("betrag"), ',', '.');
// wenn kein Vorzeichen angegeben wurde, nehmen wir eine Ausgabe an
// und setzen den Betrag negativ
if (!(betragStr.startsWith("-") || betragStr.startsWith("+"))) {
betragStr = "-" + betragStr;
}
BigDecimal betrag = null;
try {
betrag = new BigDecimal(betragStr);
if (betrag.compareTo(BigDecimal.valueOf(0)) == 0)
error = true;
}
catch (NumberFormatException nfe) {
error = true;
}
if (error)
errorMessage = "<span style='color: red;'>Fehler: </span> &quot;" + request.getParameter("betrag") + "&quot; ist kein zulässiger Betrag.";
Date datum = null;
try {
datum = formatter.parse(request.getParameter("datum"));
} catch (ParseException pe) {
error = true;
errorMessage = "<span style='color: red;'>Fehler:</span> &quot;" + request.getParameter("datum") + "&quot; ist kein zulässiges Datum.";
}
if (!error) {
Transaktion transaction = new Transaktion(betrag, Integer.parseInt(request.getParameter("kategorie")), datum, request.getParameter("beschreibung"), (database.hasAuslagen ? Integer.parseInt(request.getParameter("auslage")) : 0));
try {
lastId = database.writeTransaction(transaction);
} catch (SQLException se) {
throw new ServletException(se);
}
}
response.setStatus(HttpServletResponse.SC_OK);
PrintWriter out = response.getWriter();
writeHeader(out);
if (!error)
showLastTransaction(out);
else
showMessage(out, errorMessage);
showInputForm(out);
showTable(database, 10, out);
showAuslagen(out);
writeFooter(out);
}
private void showInputForm(PrintWriter out) throws ServletException {
SortedMap<Integer, String> categories;
try {
categories = database.getCategories();
} catch (SQLException e) {
throw new ServletException(e);
}
out.println("<form action='" + database.path + "' method='post' style='text-align: center;'><table border='0' cellpadding='1' style='margin:auto;'>");
out.println("<tr><td align='right'>Betrag:</td><td align='left'><input name='betrag' type='text' size='10' maxlength='10' style='font-size:100%' /></td></tr>");
out.println("<tr><td align='right'>Kategorie:</td><td align='left'><select name='kategorie' size='1' style='width: 23ex; font-size:100%'>");
for (Map.Entry<Integer, String> category : categories.entrySet()) {
if (category.getKey() == 4) {
out.println("<option selected='selected' value='" + category.getKey() + "'>" + StringEscapeUtils.escapeHtml4(category.getValue()) + "</option>");
}
else {
out.println("<option value='" + category.getKey() + "'>" + StringEscapeUtils.escapeHtml4(category.getValue()) + "</option>");
}
}
out.println("</select></td></tr>");
out.println("<tr><td align='right'>Datum:</td><td align='left'><input name='datum' type='text' size='10' maxlength='10' value='" + formatter.format(new Date()) + "' style='font-size:100%' /></td></tr>");
out.println("<tr><td align='right'>Notiz:</td><td align='left'><input name='beschreibung' type='text' size='25' maxlength='255' style='font-size:100%' /></td></tr>");
if (database.hasAuslagen)
out.println("<tr><td align='right'>Auslage:</td><td align='left'><input name='auslage' type='radio' value='0' checked='checked' />&nbsp;Keine&nbsp;&nbsp;&nbsp;<input name='auslage' type='radio' value='1' />&nbsp;Tilman&nbsp;&nbsp;&nbsp;<input name='auslage' type='radio' value='2' />&nbsp;Anica</td></tr>");
out.println("<tr><td align='center' colspan='2'><input type='submit' value='Absenden' /></td></tr></table>");
out.println("</form>");
}
private void showAuslagen(PrintWriter out) throws ServletException {
if (database.hasAuslagen) {
auslagenChallenge = rnd.nextInt(Integer.MAX_VALUE);
out.println("<table border='0' cellpadding='3' style='margin:auto; margin-top: 2em; font-size: 80%; border-collapse:collapse;'>");
try {
out.println("<tr><td>Auslagen Anica </td><td align=\"right\">" + database.getSumExpenses(2) + "&nbsp;€</td><td><span style='color: red; font-weight: bold;'><a href='" + database.path + "?id=2&chl=" + auslagenChallenge + "'>überwiesen</a></span></td>");
out.println("<tr><td>Auslagen Tilman </td><td align=\"right\">" + database.getSumExpenses(1) + "&nbsp;€</td><td><span style='color: red; font-weight: bold;'><a href='" + database.path + "?id=1&chl=" + auslagenChallenge + "'>überwiesen</a></span></td>");
} catch (SQLException se) {
throw new ServletException(se);
}
out.println("</table>");
}
}
private void showLastTransaction(PrintWriter out) throws ServletException {
Transaktion trns = null;
try {
trns = database.getLastTransaction();
} catch (SQLException e) {
throw new ServletException(e);
}
out.println("<div style='text-align: center; font-size: 80%; font-weight: bold; padding: 0.5ex; background-color: lightgray; width: 25em; margin:auto; margin-bottom: 3em;'>");
out.println("gespeichert: ");
out.print(trns.datum + " ");
if (trns.betrag.compareTo(BigDecimal.valueOf(0)) < 0) {
out.print("<span style='color: red;'>");
}
else {
out.print("<span style='color: green;'>");
}
out.println(trns.betrag.toPlainString() + "&nbsp;€</span>");
undoChallenge = rnd.nextInt(Integer.MAX_VALUE);
out.println("&nbsp;&nbsp;&nbsp;<span style='color: red; font-weight: bold;'><a href='" + database.path + "?del=" + trns.id + "&chl=" + undoChallenge + "'>löschen</a></span>");
out.println("</div>");
}
private void showMessage(PrintWriter out, String message) {
out.println("<div style='text-align: center; font-weight: bold; padding: 0.5ex; border: 2px dotted red; background-color: lightgray; width: 25em; margin:auto; margin-bottom: 3em;'>");
out.println(message);
out.println("</div>");
}
}
public class StatsServlet extends HttpServlet {
private static final long serialVersionUID = 4104919572342151480L;
private DatabaseController database;
public StatsServlet(DatabaseController database) {
super();
this.database = database;
}
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
response.setContentType("text/html;charset=utf-8");
response.setStatus(HttpServletResponse.SC_OK);
PrintWriter out = response.getWriter();
writeHeader(out);
showTable(database, ((request.getParameter("n") != null) ? Integer.parseInt(request.getParameter("n")) : 20), out);
writeFooter(out);
}
}
public class CsvServlet extends HttpServlet {
private static final long serialVersionUID = 4104919572342151480L;
private DatabaseController database;
public CsvServlet(DatabaseController database) {
super();
this.database = database;
}
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
char separator = ';';
if (request.getParameter("separator") != null) {
separator = request.getParameter("separator").charAt(0);
}
response.setContentType("text/html;charset=utf-8");
response.setStatus(HttpServletResponse.SC_OK);
PrintWriter out = response.getWriter();
writeHeader(out);
out.println("<pre>");
out.println("ID" + separator + "Datum" + separator + "Kategorie" + separator + "Betrag" + separator + "Beschreibung");
List<Transaktion> transactions = null;
try {
transactions = database.getLastTransactions(((request.getParameter("n") != null) ? Integer.parseInt(request.getParameter("n")) : 50));
} catch (SQLException se) {
throw new ServletException(se);
}
for (Transaktion t : transactions) {
String s = "" + t.id + separator + formatter.format(t.datum) + separator + StringEscapeUtils.escapeHtml4(t.kategorieName) + separator + t.betrag.toPlainString() + separator + ((t.beschreibung == null) ? "" : StringEscapeUtils.escapeHtml4(t.beschreibung));
System.out.println(s);
out.println(s);
}
out.println("</pre>");
writeFooter(out);
}
}
class ShutdownThread extends Thread {
DatabaseController database;
public ShutdownThread(DatabaseController database) {
this.database = database;
}
public void run() {
try {
database.close();
} catch (SQLException se) {
log.error(se);
}
}
}
public static void main(String[] args) {
Service service = new Service();
service.start();
}
}
src/main/java/de/tilman/transactions/Transaktion.java
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package de.tilman.transactions;
import java.math.BigDecimal;
import java.util.Date;
public class Transaktion {
public int id;
public BigDecimal betrag;
public int kategorie;
public String kategorieName;
public Date datum;
public String beschreibung;
public int auslage;
public Transaktion(int id, BigDecimal betrag, int kategorie, Date datum, String beschreibung, int auslage) {
this.id = id;
this.betrag = betrag;
this.kategorie = kategorie;
this.datum = datum;
this.beschreibung = beschreibung;
this.auslage = auslage;
}
public Transaktion(int id, BigDecimal betrag, int kategorie, String kategorieName, Date datum, String beschreibung, int auslage) {
this(id, betrag, kategorie, datum, beschreibung, auslage);
this.kategorieName = kategorieName;
}
public Transaktion(BigDecimal betrag, int kategorie, Date datum, String beschreibung, int auslage) {
this(-1, betrag, kategorie, datum, beschreibung, auslage);
}
}
src/main/java/org/example/HelloServlet.java
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package org.example;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class HelloServlet extends HttpServlet
{
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
{
response.setContentType("text/html");
response.setStatus(HttpServletResponse.SC_OK);
response.getWriter().println("<h1>Hello Servlet</h1>");
response.getWriter().println("session=" + request.getSession(true).getId());
}
}
src/main/java/org/example/HelloWorld.java
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package org.example;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.mortbay.jetty.HttpConnection;
import org.mortbay.jetty.Request;
import org.mortbay.jetty.Server;
import org.mortbay.jetty.handler.AbstractHandler;
public class HelloWorld extends AbstractHandler {
public void handle(String target, HttpServletRequest request, HttpServletResponse response, int dispatch) throws IOException,
ServletException {
response.setContentType("text/html;charset=utf-8");
response.setStatus(HttpServletResponse.SC_OK);
response.getWriter().println("<pre>Aloha,\nfunky time</pre>");
Request base_request = (request instanceof Request) ? (Request)request:HttpConnection.getCurrentConnection().getRequest();
base_request.setHandled(true);
}
public static void main(String[] args) throws Exception {
Server server = new Server(8080);
server.setHandler(new HelloWorld());
server.start();
server.join();
}
}
src/webapp/WEB-INF/index.html
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<h1>Hello World Webapp</h1>
<a href="/hello">Hello Servlet</a>
src/webapp/WEB-INF/web.xml
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<?xml version="1.0" encoding="ISO-8859-1"?>
<web-app
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
version="2.5">
<servlet>
<servlet-name>Hello</servlet-name>
<servlet-class>org.example.HelloServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Hello</servlet-name>
<url-pattern>/hello/*</url-pattern>
</servlet-mapping>
</web-app>
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