NIO-based Java implementation of a multi-threaded Web server

Code Address: https://github.com/iyuanyb/webserver

Achieved

Static, dynamic resource acquisition;
Cookie, Session, long HTTP connection, and the timing and clear the HTTP Session long link;

Spring MVC annotation similar programming, such as @RequestMapping @RequestParam the like, data may be obtained from the process according to the parameter reception names, objects can be passed, and also supports cascading attributes, such as:

 
    // GET /page?pageSize=10&pageNum=1 HTTP/1.1
@RequestMapping("/page")
String page(@RequestParam(value="pageSize", defaultValue="10") Integer pageSize, Integer pageNum) {...}

/**
 * POST /login HTTP/1.1
 * ...
 * user.name=admin&user.passwd=admin&user.data.val=ok
 * *******
 * User 类：String name; String passwd; Data data;
 * Data type: String val;
 */
@RequestMapping("/login", method = HttpMethod.POST)
String login(User user) {...} 
   

Method returns a string that represents the path template, the template is achieved using a positive, only from request and session getting a property value field, such as ${request.user.id};
Logging (built using java.util.logging logger, customized log format): related to the operation log server (server-n.log), HTTP requests the log (access-n.log).

API Summary:

@Controller
@RequestMapping
@RequestParam
@RequestHeader
@CookieValue
HttpRequest
HttpResponse
HttpSession
Cookie
HttpMethod

Instructions

Import jar package (see release) related to the use of notes, also need to create a webapp directory in the classpath, it represents the root path of static web resources. Then in the main class of main method calls BootStrap.run(), because the scan controller is implemented by traversing the directory, so the project does not support the package, must be published in the form of class files. Server-config.properties parameters need to provide a profile to the classpath, contains the following configuration items:

# Server port
PORT=80
Path # log files are stored
LOG_FILE_STORAGE_PATH=E:\\
# Connection expiration time in milliseconds
CONNECTION_EXPIRY_TIME=30000
# Clean up period expired connected milliseconds
CONNECTION_CLEANING_CYCLE=30000
# Session expiration time in milliseconds
SESSION_EXPIRY_TIME=30000
# Clean up expired Session of the cycle, in milliseconds
SESSION_CLEANING_CYCLE=30000
# The number of threads to listen for client reading event
POLLER_THREAD_COUNT=2
# Processing specific requests thread pool size
REQUEST_PROCESSOR_THREAD_COUNT=4

Show

Project structure

EchoController.java

 
    package com.test;

// 导包 omitted ...

@Controller // Only @Controller mark will be considered as controller
            // @RequestMapping supports the use of annotations in the class,
public class EchoController {

    // thread-safe
    private static final DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");

    @RequestMapping ( "/ echo") // mapped to "/ echo"
    public String echo(HttpRequest request, @RequestParam(value = "msg", defaultValue = "输入为空") String msg) {

        LocalDateTime localDateTime = LocalDateTime.ofEpochSecond(request.getSession().getLastAccessedTime() / 1000, 0, ZoneOffset.ofHours(8));
        request.setAttribute("lastAccessedTime", localDateTime.format(formatter));
        request.setAttribute("msg", msg);
        return "test.html"; // to render the template path (classpath: webapp / test.html)
    }

    public static void main(String[] args) {
        BootStrap.run();
    }
} 
   

test.html

 
    <!DOCTYPE>
<html lang="en">
    <head>
        <title>Test</title>
    </head>
    <body>
        <p>Echo: ${request.msg}</p>
        <p>Last Accessed Time: ${request.lastAccessedTime}</p>
        <p><img src="img/girl.jpg" alt="girl" width="320" height="480"/></p>
    </body>
</html> 
   

effect
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