Increase file upload size in wildfly

To increase file upload size limit in wildfly, the steps are as follows:

1. Go to bin directory in wildfly (assuming your wildfly directory is located in /opt), and connect to wildfly console

# cd /opt/wildfly/bin

# ./jboss-cli.sh -c

2. Go to /subsystem=undertow/server=default-server/http-listener=default

[standalone@localhost:9990 /] cd /subsystem=undertow/server=default-server/http-listener=default

3. Increase max-header-size to a higher value

[standalone@localhost:9990 /] :write-attribute(name=max-header-size,value=30000000)

{

    "outcome" => "success",

    "response-headers" => {

        "operation-requires-reload" => true,

        "process-state" => "reload-required"

    }

}

4. Increase max-post-size to a higher value

[standalone@localhost:9990 /] :write-attribute(name=max-post-size,value=30000000)

{

    "outcome" => "success",

    "response-headers" => {

        "operation-requires-reload" => true,

        "process-state" => "reload-required"

    }

}

5. Check if both is now increased in value

[standalone@localhost:9990 /] ls

max-header-size=30000000

...

max-post-size=30000000  

You are all set, test upload using your application to verify the change. Restart wildfly if necessary.

Extracting and creating war files in centos

To manipulate war files, you need a command called jar, and this command is available from openjdk-devel package.

Install openjdk-devel -y

# yum install java-1.8.0-openjdk-devel

You should be able to use jar command

# which jar

/usr/bin/jar

View the content of a war file

# jar tf sample.jar

Extract the content of a war file

# jar xf sample.jar

Create war from files

# jar cf sample.jar /path/to/files