java smtp server example

Java Mail API is one of the latest standard extensions developed by Sun. It provides Java application developers with Mail/communication solutions independent of platforms and protocols. This article introduces the core mechanism of this API and demonstrates its usage through a mail forwarding server (mail list server.The development of

http://www.oschina.net/translate/java-ee-html5-websocket-example?cmpHTML5 brings the ability of a full-duplex TCP connection WebSocket a standard server to a Web browser.In other words, the browser is able to establish a connection with the server, sending and receiving data through the established communication channe

A multi-client chat room, support multi-client chat, like the following features: Feature 1: Client connects to the server via Java NIO, supports multiple client connections Function 2: When the client initial connection, the server prompts for a nickname, if the nickname has been used, prompt re-enter, if the nickname is unique, the login is success

Introduction to Ssl/tls/jsse:1) SSL/TLS protocol operating mechanism2) graphical SSL/TLS protocol3) Use Wireshark to observe the SSL/TLS handshake process4) The Java implementation of SSL/TLS--jsse(i) Creating a keystore using KeytoolUsing two-way authentication for SSL/TLS protocol communication, both the client and server are set up to authenticate themselves with the security certificate, and also set wh

path=Execute the following command to make the configuration effectiveSource/etc/profileNote: path= "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games" must be retained, Doing so will cause the system not to log in. You can also use another two configurations instead of the line configuration:5. How to unload your own OPENJDK: sudo apt-get remove openjdk* 6. Set the default JDK (if you have OpenJDK)Because there may be default JDK in Ubuntu,

About the concept and advantages of JSON, we have talked many times, do not understand the students can search, this article we mainly talk about how JavaScript processing parse JSON data.For a simple example:JS Codefunction Showjson () {var user ={"username": "Andy","Age": 20,"Info": {"tel": "123456", "cellphone": "98765"},"Address":[{"City": "Beijing", "postcode": "222333"},{"City": "NewYork", "Postcode": "555666"}]}alert (user.username);alert (user.age);alert (User.info.cellphone);alert (user

hessiancsharp. io; Namespace WindowsFormsApplication3{Public partial class Form1: Form{Public Form1 (){InitializeComponent ();} Private void button#click (object sender, EventArgs e){String url = "http: // localhost/HessianServer/hessian ";CHessianProxyFactory factory = new CHessianProxyFactory (); Hello test = (Hello) factory. Create (typeof (Hello), url );MessageBox. Show (test. sayHello ("migle"); // print the string obtained from the serverTest. printHello ("Hessian"); // print "Hello Hessi

submission forms. Therefore, the background data processing method is, no difficulty, you know! Don't you understand? This ...... Make up HTML knowledge. The best example is the submission of the logon window. you can try to practice in a language you are familiar. 2. submit in Ajax format. The example here is the password reset during user login. although the data format is not fixed, the submit parameter

Java-WCF Communication Example Let's just move on to the source code: http://download.csdn.net/detail/centre10/3612982. The source code is here. Java and WCF Communication Example... 1 I. Summary... 1 II. Environment description... 2 3. Compile the WCF server and client

Many beginners for the Java network communication is not very familiar with the relevant concepts are not very clear, here we mainly implement socket communication, socket communication in Java application is very wide, such as QQ and MSN are based on the socket communication, what is the socket? Simply understand that the socket is the ip+ port. Use an example t

Java database connection pool configuration methods (take MySQL database as an example), database connection mysqlSeveral configuration methods for Java Database Connection Pool (taking MySQL database as an example) 1. Tomcat configuration data source: Prerequisites: You need to put the jar package for connecting to th

, CIFS runs at the top, rather than at the bottom, as the TCP/IP protocol does. CIFS can be seen as an implementation of application protocols such as file transfer protocols and hypertext transfer protocols.CIFS enables you to achieve the following features:1. Access the server local files and read and write these files2. Share some file blocks with other users3. Automatically restore the connection to the network when disconnected 4. Using Western E

I. Client GUI In this example, the Client GUI is implemented using swing, and the server does not use the GUI. Public class javaclient extends jframe implements actionlistener // use jframe as the base class to implement the actionlistener Interface{Jbutton sendbutton; // "send" buttonJtextfield inputfield; // input boxJtextarea outputaera; // server return boxP

" runs in a virtual machine? What if my "inner hanging" is a short piece of code inserted into the original game? You know, it's not a long time to dynamically load the class and modify the bytecode. In this case, you need to verify the validity of the Java program.It is time-consuming to verify such a thing, but if we are good at using each download of resources (relatively large, such as image or game updates), if we do not just "Download ", more sy

Java NIO mainly involves the relationship among the Channel, SelectionKey, and Selector classes. The following example shows how to use NIO to process requests :/****/Package dongzi.nio.exe rcise. nio; Import java. io. IOException;Import java.net. InetSocketAddress;Import java.net. ServerSocket;Import java. nio. ByteBu

, the data processing method in the background is not much different from the data submitted in the form. 3. Store Data Synchronization submission method. As long as writer is defined and the same data submission method is used, the background data processing method is basically the same. For example, for adding, editing, and deleting operations in user management, the submitted data must be extracted from the data keyword, then, you need to convert t

Original:Java S2SH Project Framework Integration Building Example TutorialSource code: Http://www.zuidaima.com/share/1787220771113984.htmNow the development of a project using the S2SH framework, configuration of the environment for a day or two, now the configuration of the environment when the document was written out, but also to strengthen the point of memory.1 development environment? MyEclipse5.5? JDK 1.6? J