Get command-line arguments from spring-boot:run - java

Is there any way to input arguments when launching spring-boot application (mvn spring-boot:run) from commandline and then get them in main()?

Looking at the source code of the spring-boot-maven-plugin I found that you need to do:
mvn spring-boot:run -Drun.arguments="arg1,arg2"
Another way to get more information about what options the run goal of the spring-boot plugin supports is to execute the following command:
mvn help:describe -Dcmd=spring-boot:run -Ddetail
For Spring Boot 2.x, the source is here and you now need to use -Dspring-boot.run.arguments="args1,args2"
(edit from april 2021)
For Spring Boot 2.2+, you now need to use -Dspring-boot.run.arguments="args1 args2"
If you are using Gradle and you want to be able to pass command line arguments to the Gradle bootRun task, you first need to configure, for example like so:
bootRun {
if ( project.hasProperty('args') ) {
args project.args.split('\\s+')
}
}
and run the task using gradle bootRun -Pargs="arg1 arg2"

When passing multiple arguments using -Drun.arguments, if the argument in turn has 'comma-separated' values, then only the first value of each argument is used. To avoid this repeat the argument as many times as the number of values.
This is more of a workaround. Not sure if there is an alternative unless the delimiter is different - like '|'.
E.g Issue:
mvn spring-boot:run -Drun.arguments="--spring.profiles.active=test,dev"
Picks only 'test' profile for the above command.
Workaround:
mvn spring-boot:run -Drun.arguments="--spring.profiles.active=test,--spring.profiles.active=dev"
Picks both 'dev' & 'test' profiles for the above command.

Be aware : The way of passing arguments depends on the spring-boot major.minor version.
TLDR
For Spring Boot 1:
mvn spring-boot:run -Drun.arguments="argOne,argTwo"
For Spring Boot 2.0 and 2.1:
mvn spring-boot:run -Dspring-boot.run.arguments="argOne,argTwo"
(edit from april 2021)
For Spring boot 2.2 and later:
mvn spring-boot:run -Dspring-boot.run.arguments="argOne argTwo"
spring-boot-maven-plugin version and the the Spring Boot version you use has to be aligned.
According to the Spring Boot major version used (1 or 2), the spring-boot-maven-plugin in the 1 or the 2 version should indeed be used.
If your pom.xml inherits from the spring-boot-starter-parent :
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>ONE_OR_TWO_VERSION</version>
</parent>
In your pom, the version of the plugin used should not even be specified as this plugin dependency is inherited :
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
...
</configuration>
</plugin>
</plugins>
In case of your pom.xml not inheriting from spring-boot-starter-parent, don't forget to align the version of spring-boot-maven-plugin with the exact version of spring boot you want to use.
Passing arguments in command line with spring-boot-maven-plugin:1.X.X
For one argument :
mvn spring-boot:run -Drun.arguments="argOne"
for multiple :
mvn spring-boot:run -Drun.arguments="argOne,argTwo"
The maven plugin page documents it :
Name Type Since Description
arguments | String[] | 1.0 | Arguments that should be passed
to the application. On command line use
commas to separate multiple arguments.
User property is: run.arguments.
Passing arguments in command line with spring-boot-maven-plugin:2.X.X
For one argument :
mvn spring-boot:run -Dspring-boot.run.arguments="argOne"
for multiple :
mvn spring-boot:run -Dspring-boot.run.arguments="argOne,argTwo"
I didn't find the plugin documentation for the 2.X.X version that refers to that.
But the org.springframework.boot.maven.AbstractRunMojo class of the spring-boot-maven-plugin:2.0.0.M3 plugin refers to this user property:
public abstract class AbstractRunMojo extends AbstractDependencyFilterMojo
...
#Parameter(property="spring-boot.run.arguments")
private String[] arguments;
...
protected RunArguments resolveApplicationArguments(){
RunArguments runArguments = new RunArguments(this.arguments);
addActiveProfileArgument(runArguments);
return runArguments;
}
...
}
Hint : as you pass more than one argument, whitespaces between commas are considered.
mvn spring-boot:run -Dspring-boot.run.arguments="argOne,argTwo"
will be interpreted as ["argOne", "argTwo"]
But this :
mvn spring-boot:run -Dspring-boot.run.arguments="argOne, argTwo"
will be interpreted as ["argOne", " argTwo"]
(edit from march 2021)
Whitespaces are now used as separator for multiple-arguments commands, see the relevant issue.

As I checked today, the correct usage for Spring Boot 2.2.5 is:
mvn spring-boot:run -Dspring-boot.run.arguments="--arg1=value --arg2=value"
Because help says:
commandlineArguments
User property: spring-boot.run.arguments
Arguments from the command line that should be passed to the application.
Use spaces to separate multiple arguments and make sure to wrap multiple
values between quotes. When specified, takes precedence over arguments.

Spring Boot 1 as 2 provide a way to pass multiple profiles as argument and avoid the issue related to the comma used both as separator between the args and the values passed as active profile.
So instead of writing :
mvn spring-boot:run -Dspring-boot.run.arguments=--spring.profiles.active=test,--spring.profiles.active=dev
use the Spring Boot Maven profiles property that is a convenience shortcut of spring.profiles.active such as the followings :
The Maven user property is different according to the Spring Boot version.
For Spring Boot 1.4+, that is run.profiles :
mvn spring-boot:run -Drun.profiles=dev,test
For Spring Boot 2, that is spring-boot.run.profiles :
mvn spring-boot:run -Dspring-boot.run.profiles=dev,test
From the plugin documentation :
profiles:
The spring profiles to activate. Convenience shortcut of specifying
the 'spring.profiles.active' argument. On command line use commas to
separate multiple profiles.
Type: java.lang.String[]
Since: 1.3
Required: No
User Property: spring-boot.run.profiles

I'm using spring.boot 2.4.2 and i separated the arguments with withe-space and put the values between double quotes.
mvn spring-boot:run -Dspring-boot.run.arguments="--param1=value2 --param2=value2"

And if you're using Eclipse...
| Parameter Name | Value |
| run.arguments | "--name=Adam" |

This is what worked for me (spring-boot v1.4.3.RELEASE),.
mvn spring-boot:run -Dspring.profiles.active=test,local -Dlogback-debug=true

For the latest version of spring use -Dspring-boot.run.arguments= as shown in the example below
spring-boot:run -Djasypt.encryptor.password=temp -Dspring-boot.run.arguments="OU,Grade"

Use the following command for a Spring Boot application.
mvn spring-boot:run -Dspring-boot.run.arguments="--java.net.preferIPv4Stack=true --config.password=PASSWORD --config.token=s.TOKEN --spring.application.name=ENV --config.server.ip=IP_ADDRESS --spring.profiles.active=ENV --spring.profiles.active.custom=ENV_custom"

Related

Provide configuration as part of mvn azure-function:deploy

Currently we deploy our Java based azure-function and then set the configuration:
mvn azure-function:deploy
az functionapp config appsettings set --name function-app --resource-group XXXX --settings "EndPoint=https://XXXX" "Key2=YYYY" "Key3=ZZZZ"
This is not perfect. Is there a maven task to set the configuration?
Even better, if it could deploy and set the configuration together?
The configurations would need to be provided as command line arguments?

Maven doesn't recognize parameter when containing "-"

I was trying to test this maven plugin on a simple spring-boot project. But I'm facing an issue with mojo parameters, when I use parameter containing a "-" along with goals it doesn't seem to work:
$ mvn clean install fabric8:build fabric8:resource \
> -Dfabric8.openshift.enableAutomaticTrigger=false \
> -Dfabric8.enricher.fmp-openshift-imageChangeTrigger.enrichAll=true
But when I put these parameters as system properties in project's pom.xml. They seem to be picked by maven plugin and work as they are supposed to do. I added this to pom like this:
<properties>
<fabric8.openshift.enableAutomaticTrigger>false</fabric8.openshift.enableAutomaticTrigger>
<fabric8.enricher.fmp-openshift-imageChangeTrigger.enrichAll>true</fabric8.enricher.fmp-openshift-imageChangeTrigger.enrichAll>
</properties>
I'm a big confused here. Can anyone please tell me why it's not working in former case? Is there some kind of naming convention for mojo parameters that we're supposed to follow?
I suggest you to use a workaround (seems to me a faster solution than debug maven) :
<properties>
<f8.autoTrigger>your_default_here</f8.autoTrigger>
<f8.enrichAll>your_other_default_here<f8.enrichAll>
<fabric8.openshift.enableAutomaticTrigger>${f8.autoTrigger}</fabric8.openshift.enableAutomaticTrigger>
<fabric8.enricher.fmp-openshift-imageChangeTrigger.enrichAll>${f8.enrichAll}</fabric8.enricher.fmp-openshift-imageChangeTrigger.enrichAll>
</properties>
And if you want to override your defaults you can invoke maven like :
$ mvn clean install fabric8:build fabric8:resource \
> -Df8.autoTrigger=false \
> -Df8.enrichAll=true
It is even shorter :)

mvn test - override values in application.properties

I have these properties in my application.properties:
spring.datasource.url=jdbc:postgresql://localhsost:5432/myDatabase
spring.datasource.username=myUsername
I would like to run mvn test with other values than the above, for example:
spring.datasource.url=jdbc:postgresql://my.test.server.com:5432/myDatabase
spring.datasource.username=anotherUsername
I tried the following
mvn test -Drun.arguments='--spring.datasource.jdbc:postgresql://my.test.server.com:5432/myDatabase --spring.datasource.username=anotherUsername'
and without spring prefix:
mvn test -Drun.arguments='--datasource.jdbc:postgresql://my.test.server.com:5432/myDatabase --datasource.username=anotherUsername'
But this does not seem to work. How can I override the values in the application.properties in context of running mvn test?
Something like this should work:
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.20.1</version>
<configuration>
<systemPropertyVariables>
<spring.datasource.jdbc>value</spring.datasource.jdbc>
</systemPropertyVariables>
</configuration>
</plugin>
But more often we do this by placing a test version of application.properties into the src/test/resources. During testing, that file will have greater priority.
When overriding parameters in the command line, use a comma as separator, not a space:
mvn test -Drun.arguments='--spring.datasource.url=...,--spring.datasource.username=...'
This should work too:
mvn test -Dspring.datasource.url=... -Dspring.datasource.username=...
Edit from april 2021
The syntax above was valid for Spring Boot 1.X.
With Spring Boot 2.0/2.1, use:
mvn test -Dspring-boot.run.arguments='--spring.datasource.url=...,--spring.datasource.username=...'
And with Spring Boot 2.2, the syntax was changed again (use a whitespace as separator):
mvn test -Dspring-boot.run.arguments='--spring.datasource.url=... --spring.datasource.username=...'
Other answers and comments mention using profiles and put a custom application.properties in /src/test/resources, which is not a viable solution for you since you use different pipelines, but if I remember correctly, you can even use application-{profile}.properties in /src/test/resources. This way you should be able to maintain one test profile per pipeline, where you put your custom parameters, and then test your pipeline with:
mvn test -Dspring.profiles.active=foobar
Option 1 (preferred as is Maven structure-specific)
Create an application.properties under the test/resources to be picked up for your testing purposes
Option 2 (Spring Test fine-tuning a particular Test class alone)
Override your properties directly on the Test class by inlining the ones you want by using #TestPropertySource
Option 3 (Spring Boot - multiple properties files or a single YAML file)
Group the props under a Spring Profile (Example here) and invoke it directly from maven: mvn test -Dspring.profiles.active="myOtherSpringProfile"
Create another application-dev.properties file and paste:
spring.datasource.url=jdbc:postgresql://my.test.server.com:5432/myDatabase
spring.datasource.username=anotherUsername
Then run with the option -Dspring.profiles.active=dev in your mvn command.
E.g.: mvn test -Dspring.profiles.active=dev
You can add as many profiles as needed.
syntax: application-<profile name>.properties
I don't see many people using the environment variable option. If you set an environment variable for corresponding properties, then the value in the environment variable will be used. e.g.
Environment variables:
SPRING_DATASOURCE_URL="jdbc:postgresql://my.test.server.com:5432/myDatabase"
SPRING_DATASOURCE_USERNAME=anotherUsername
Inside the properties file:
spring.datasource.url=jdbc:postgresql://localhsost:5432/myDatabase
spring.datasource.username=myUsername
The application will use the values in the environment variables. For this to work you'll need to follow the naming convention. Use uppercase and replace "." with "_".

Pass system property to spring boot

A library I need to use reads system property in the following way:
System.getProperty("library.system.property")
Is there any way to pass such a property to spring boot while starting the app or do I need to set it in the system?
You can pass it on the command line:
java -Dlibrary.system.property=value -jar myapp.jar
Update 2020-01-08
For spring-boot 2.2.2.RELEASE while develop
mvn spring-boot:run -Dspring-boot.run.jvmArguments="-Dmy_-Dmy_system_properties=test1"
For spring-boot 1.5.x.RELEASE or below while develop
mvn spring-boot:run -Drun.jvmArguments="-Dmy_system_properties=test1"
For run as jar
java -Dmy_system_properties=test1 -jar service.jar
You can try with a runnable example, here https://www.surasint.com/spring-boot-pass-system-properties-in-command-line/
you can also do it like this:
public static void main(String[] args) {
System.setProperty("key", "value");
SpringApplication.run(MyApplication.class);
}
If you are using spring-boot maven plugin to execute the application, try (no line breaks)
mvn spring-boot:run -Drun.jvmArguments="-Xms2048m -Xmx4000m -XX:MaxPermSize=2048m
-Dlibrary.system.property=value"
Refer maven plugin for additional details

maven command line - plugin configuration

I'm in the need to run integration tests one by one with the failsafe plugin (please, don't ask why... They just have to run in individual jvms, one good reason for avoiding singletons).
So I'd like to create a script with one maven call per line where each maven call runs tests on a single test file. Something like this:
mvn failsafe:integration-test -D<???>=**/ITest1.java
mvn failsafe:integration-test -D<???>=**/ITest2.java
mvn failsafe:integration-test -D<???>=**/ITest3.java
...
In a pom.xml I'd add something like
<includes>
<include>**/ITest1.java</include>
</includes>
to the plugins configuration. Is there a way to achieve the same with the command line? Is it possible to specify list-like configuration options?
The syntax is:
mvn -Dit.test=TestName verify
Source: Failsafe Plugin Examples: Running a Single Test
The it.test parameter does that. You can read about it here.
From the docs:
[...] so you can just type "-Dit.test=MyTest" to run a single test called "foo/MyTest.java".

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