Skip to content

Commit 0af8a18

Browse files
dvspandeydvspandey
authored
Adding Points with more description
1 parent 2b06503 commit 0af8a18

File tree

1 file changed

+88
-37
lines changed

1 file changed

+88
-37
lines changed

‎README.md‎

Lines changed: 88 additions & 37 deletions
Original file line numberDiff line numberDiff line change
@@ -1,51 +1,102 @@
11
# Web-ChatApplication
2-
Application with JSPs and Servlets
2+
## Application with JSPs and Servlets
33
.
44
.
55
.
6-
It provides client application which runs on the users’ desktop and server application which runs on any machine on the network. To start chatting our client should get connected to a server where they can do group and private chatting.
6+
**It provides client application which runs on the users’ desktop and server application which runs on any machine on the network. To start chatting our client should get connected to a server where they can do group and private chatting.**
77

88

9-
#Software requirements of the project
9+
## Software requirements of the project
1010
Windows & Higher version (32/64-bit) license copies as per requirement
1111
Tomcat9 Server
1212
JDBC connectivity
1313

1414

15-
#Implementation Languages used to develop the project
16-
Java
17-
HTML
18-
CSS
19-
JavaScript
20-
Not using AJAX | Socket Programming here, but use Seprate two Frames.
15+
## Implementation Languages used to develop the project
16+
- Java
17+
- HTML
18+
- CSS
19+
- JavaScript
20+
- Not using AJAX | Socket Programming here, but use Seprate two Frames.
2121

2222

23-
#Database
23+
## Database
2424
The total number of tables in the database that was identified to build our system is 2.
25-
>CHATAPP_LOGIN
26-
>CHATAPP_CHAT
27-
28-
29-
#Backend
30-
JDBC: JDBC stands for Java Database Connectivity. It is a part of JavaSE (Java Standard Edition). JDBC API uses JDBC drivers to connect with the database.
31-
32-
#JSP & Servlets: Java Server Pages (JSP) is a server-side technology that allows development of Web-based applications.
33-
34-
JSP stands for Java Server Page. It is used to create a web application just like Servlet technology. We can think of JSP as an extension to Servlet because it provides more functionality than servlets such as expression language, JSTL, etc.
35-
36-
37-
38-
39-
#Frontend
40-
HTML (HyperText Markup Language)
41-
42-
HTML stands for HyperText Markup Language and it is a standard markup language for creating Web pages. It describes the structure of Web pages.
43-
44-
CSS (Cascading Style Sheets)
45-
46-
CSS is a language that describes the style of an HTML document. It describes how HTML elements should be displayed.
47-
48-
Servlets used in the project
49-
50-
51-
#Servlets used in the project
25+
1. CHATAPP_LOGIN
26+
- This Table have several coulumns and this helps to **Login | Register | List all user **
27+
- EMAIL (pk)
28+
- PASSWORD
29+
- TIME_STAMP
30+
2. CHATAPP_CHAT
31+
- This table have 4 columns and these columns helps to **Store | Retrive(Select)** Chat messages into DataBase
32+
- MESSAGES
33+
- TIME_STAMP
34+
- MSG_FROM (FK)
35+
- REFERENCES CHATAPP_LOGIN ("EMAIL") ON DELETE CASCADE
36+
- MSG_TO (FK)
37+
- REFERENCES CHATAPP_LOGIN ("EMAIL") ON DELETE CASCADE
38+
39+
40+
## Backend
41+
**JDBC**: JDBC stands for Java Database Connectivity. It is a part of JavaSE (Java Standard Edition). JDBC API uses JDBC drivers to connect with the database.
42+
43+
## JSP & Servlets:
44+
- Java Server Pages (JSP) is a server-side technology that allows development of Web-based applications.
45+
46+
- JSP stands for Java Server Page. It is used to create a web application just like Servlet technology. We can think of JSP as an extension to Servlet because it provides more functionality than servlets such as expression language, JSTL, etc.
47+
48+
49+
50+
51+
## Frontend
52+
###### HTML (HyperText Markup Language)
53+
54+
- HTML stands for HyperText Markup Language and it is a standard markup language for creating Web pages. It describes the structure of Web pages.
55+
56+
###### CSS (Cascading Style Sheets)
57+
58+
- CSS is a language that describes the style of an HTML document. It describes how HTML elements should be displayed.
59+
60+
61+
## web.xml
62+
* Here i use web.xml configuration file as my Properties file.
63+
- Because we can't use direct Properties file in our webapplication as per my knowledge But it is possible in Standalone java applications
64+
- using **java.util.Properties** which helps to read properies file value because it is subclass of hashtabe so it contains keys and values pair
65+
* web.xml is using for configur **welcomePage.jsp** as my welcome file
66+
* web.xml is using to configure **LoginServlet.java** mapping with url and enable LOAD-ON-STARTUP because at this time i don't know with Annotations to enable.
67+
* web.xml contains JDBC related properties into **Servlet-Context** parameter to access into whole webapplication, | give reusability of code | esay to modification
68+
- Becuse it provide
69+
- consistency
70+
- Reusability
71+
72+
73+
## Servlets used in the project
74+
* Servlets used in the project 5
75+
1. LoginServlet.java
76+
- This servlet is use to handel Login related request and provide Non-techencal guidence to user to handel next steps.
77+
- This uses a helper class "com.nt.dao package" where login SQL Queries and Database connection logics exsist.
78+
- The - LoginServlet - is **Lode-on-startup=0** Servlet which contain init() method with user defined code
79+
- This code is a logic for giving **Servlet-Context** object to that helper class
80+
- becuse helper classs is using driver class name, url, pwd, and SQL Queries from **web.xml** configuration file with the help of getInitparameter() method
81+
- of ServeltContext object
82+
83+
2. RegisterServlet.java
84+
- This servlet is use to handel register request comming to server and provide Non-techencal guidence to user to guide for next steps..
85+
- It also uses that same helper class which contains logic to register user into Database
86+
- That helper class also take query and JDBC properties form web.xml using ServletContext obj which is provided by **LoginServlet.java** on Load-on-startup init() method.
87+
88+
3. ListAllRegisteredUserServlet.java
89+
- This servlet get request and sends all user who are registered (except that user who requested for List of registered user) in webApplication as response
90+
- It not take any help of helper class but it self contains logic to connect DataBase and perform SQL operations
91+
- It take JDBC properties and SQL query for select all users from database with the help of **ServletContext** object and **web.xml** configuration file
92+
93+
4. ShowSavedChatServlet.java
94+
- This servlet get request and sends all private Chat messages as a responce of perticular user.
95+
- It not take any help of helper class but it self contains logic to connect DataBase and perform SQL operations
96+
- It take JDBC properties and SQL query for select all users from database with the help of **ServletContext** object and **web.xml** configuration file
97+
98+
5. StoreChatServlet.java
99+
- This servlet helps to store private chat into database.
100+
- It not take any help of helper class but it self contains logic to connect DataBase and perform SQL operations
101+
- It take JDBC properties and SQL query for select all users from database with the help of **ServletContext** object and **web.xml** configuration file
102+

0 commit comments

Comments
 (0)