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@13andrew13

13andrew13/AdminServlet.java

Last active April 15, 2017 18:28
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Создать проект «Анкета». Сделать возможностьввода пользователем его имени, фамилии,возраста и ответов на 2-3 вопроса. Данныедолжны отправляться на сервер, который в ответдолжен вернуть статистику по ответам в видеHTML документа.
Raw
AdminServlet.java
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
/**
* Created by andrew on 13.04.17.
*/
public class AdminServlet extends HttpServlet {
public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
resp.getWriter().println(String.format("<html><head></head><body><p>%s</p></body></html>",Users.newUsers().toString()));
}
}
Raw
LoginServlet.java
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;
/**
* Created by andrew on 11.04.17.
*/
public class LoginServlet extends HttpServlet {
public static String name;
public static String surname;
public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
}
public void doPost(HttpServletRequest req, HttpServletResponse resp) throws IOException {
name = req.getParameter("name");
surname = req.getParameter("surname");
if(name.equals("admin")){
resp.sendRedirect("/admin");
}else{
Users.newUsers().add(name+' '+ surname);
resp.sendRedirect("test.html");
}
}
}
Raw
src_AdminServlet.java
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
/**
* Created by andrew on 13.04.17.
*/
public class AdminServlet extends HttpServlet {
public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
resp.getWriter().println(String.format("<html><head></head><body><p>%s</p></body></html>",Users.newUsers().toString()));
}
}
Raw
src_LoginServlet.java
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;
/**
* Created by andrew on 11.04.17.
*/
public class LoginServlet extends HttpServlet {
public static String name;
public static String surname;
public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
}
public void doPost(HttpServletRequest req, HttpServletResponse resp) throws IOException {
name = req.getParameter("name");
surname = req.getParameter("surname");
if(name.equals("admin")){
resp.sendRedirect("/admin");
}else{
Users.newUsers().add(name+' '+ surname);
resp.sendRedirect("test.html");
}
}
}
Raw
src_StatisticServlet.java
/**
* Created by andrew on 11.04.17.
*
*/
import javax.servlet.*;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
public class StatisticServlet extends HttpServlet {
public static int x=0;
public static int y=0;
public static int w=0;
public static int z=0;
public static final String TEMPLATE ="<html><head></head><body>";
public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
String answer1 = req.getParameter("first");
String answer2 = req.getParameter("second");
if("yes".equals(answer1)){
x++;
}
else {
y++;
}
if("yes".equals(answer2)){
w++;
}
else {
z++;
}
StringBuilder statistic= new StringBuilder();
statistic.append("%s %s" +
"<p>Liking java: yes=%s no=%s</p>");
statistic.append("<p>Liking java: yes=%s no=%s</p></body></html>");
resp.setContentType("text/html");
resp.getWriter().println(String.format(TEMPLATE+statistic.toString(),LoginServlet.name,LoginServlet.surname,x,y,w,z));
}
}
Raw
src_Users.java
import java.util.ArrayList;
import java.util.List;
/**
* Created by andrew on 13.04.17.
*/
public class Users {
private List<String> list = new ArrayList<>();
private static Users instance = new Users();
private Users(){}
public static Users newUsers(){
return instance;
}
public List<String> getList() {
return list;
}
@Override
public String toString() {
return "Users{" +
"list=" + list +
'}';
}
public void add(String s){
list.add(s);
}
}
Raw
StatisticServlet.java
/**
* Created by andrew on 11.04.17.
*
*/
import javax.servlet.*;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
public class StatisticServlet extends HttpServlet {
public static int x=0;
public static int y=0;
public static int w=0;
public static int z=0;
public static final String TEMPLATE ="<html><head></head><body>";
public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
String answer1 = req.getParameter("first");
String answer2 = req.getParameter("second");
if("yes".equals(answer1)){
x++;
}
else {
y++;
}
if("yes".equals(answer2)){
w++;
}
else {
z++;
}
StringBuilder statistic= new StringBuilder();
statistic.append("%s %s" +
"<p>Liking java: yes=%s no=%s</p>");
statistic.append("<p>Liking java: yes=%s no=%s</p></body></html>");
resp.setContentType("text/html");
resp.getWriter().println(String.format(TEMPLATE+statistic.toString(),LoginServlet.name,LoginServlet.surname,x,y,w,z));
}
}
Raw
Users.java
import java.util.ArrayList;
import java.util.List;
/**
* Created by andrew on 13.04.17.
*/
public class Users {
private List<String> list = new ArrayList<>();
private static Users instance = new Users();
private Users(){}
public static Users newUsers(){
return instance;
}
public List<String> getList() {
return list;
}
@Override
public String toString() {
return "Users{" +
"list=" + list +
'}';
}
public void add(String s){
list.add(s);
}
}
Raw
web_index.html
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Title</title>
</head>
<body>
<form action="/login" method="post">
Name<input type="text" name="name">
Surname<input type="text" name = "surname">
<input type="submit" value="Submit">
</form>
</body>
</html>
Raw
web_test.html
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Form</title>
</head>
<body>
<form action="/answer" method="get">
Do you like Java?
<br>
Yes<input type="radio" name="first" value="yes">
No<input type="radio" name="first" value="no">
<br>
Do you like C#?
<br>
Yes<input type="radio" name="second" value="yes" >
No<input type="radio" name="second" value="no">
<br>
<input type="submit" name="submit">
</body>
</html>
Raw
web_WEB-INF_web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
version="3.1">
<servlet>
<servlet-name>StatisticServlet</servlet-name>
<servlet-class>StatisticServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>StatisticServlet</servlet-name>
<url-pattern>/answer</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>loginServlet</servlet-name>
<servlet-class>LoginServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>loginServlet</servlet-name>
<url-pattern>/login</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>adminServlet</servlet-name>
<servlet-class>AdminServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>adminServlet</servlet-name>
<url-pattern>/admin</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
</welcome-file-list>
</web-app>
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