CODEWITHSUNDEEP
javaspring
ProgrammingPanda
ProgrammingPanda

Reputation: 143

Deploy a html file on tomcat which gets created after deploying a war

I have a dynamic web-app. I'm working in a spring environment, with maven and mybatis. I'm deploying a war file on tomcat. I'm using log4j for logging the data. I want this data to be accessible real time to everyone. For example if the home page of the web-app is localhost:8080 then I want something like localhost:8080/logs to display the logs real time. I know I have to Spring request mapping for this. But I don't know how to make it work, when my file keeps on updating itself.

Any help is appreciated

Upvotes: 0

Views: 114

Answers (2)

Prashant Kalkar
Prashant Kalkar

Reputation: 690

You can use HTML Layout feature of log4j as following:

# Define the root logger with appender file
log4j.rootLogger = DEBUG, FILE

# Define the file appender
log4j.appender.FILE=org.apache.log4j.FileAppender
log4j.appender.FILE.File=${catalina.base}/webapps/yourappname/log.html

# Define the layout for file appender
log4j.appender.FILE.layout=org.apache.log4j.HTMLLayout
log4j.appender.FILE.layout.Title=HTML logs
log4j.appender.FILE.layout.LocationInfo=true

This file should be accessible on http://localhost:8080/yourappname/log.html. Tomcat will provide catalina.base/catalina.home as system property or you can provide full file path.

Upvotes: 1

Seabook
Seabook

Reputation: 127

If it's a spring mvc.
In your controller, you need to read the file and write it into the response.
It's actually fair simple.

Code snippet for you as reference: The following is SUDO code. Just give you the direction

@RequestMapping("/log") public class Controller {

public void readLog(HttpRequest req, HttpResponse resp) {

    File file = new File('YOUR_FILE_LOCATION')

    FileReader fr = new FileReader(file);


    // you can read every line for the log file and write into resposne
    while(str = nextLine()) {
        resp.println(str)
    }

    fr.close()  

}

}

Upvotes: 4

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