Spring boot 1.3.1.RELEASE, used devtools.
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
</dependency>
Now I add some code in controller method, e.g.
logger.info("delete {} ", name);
but in eclipse console, nothing output, and access this url , the new add logger did not output. So why is so? why hot reload not work?
I found something could explain this phenomenon. Because my project name is spring-boot, and run Application class in eclispe you could see:
you could see after Application name appended (1)
I don't know what's this mean.
After rename project name to anything else(e.g. spring-boot-reservation), now I found devtools could work normally.
And this time the number after Application name is changed to 2,
Related
What does adding the '#' to name value of application.properties to the beginning and to the end mean?
I couldn't find usage of something like this. I checked the Spring docs as well, but I couldn't find it. Is this usage a generic thing for programming or specific to application.properties of Spring?
Please go through the documentation
Rather than hardcoding some properties that are also specified in your
project’s build configuration, you can automatically expand them by
instead using the existing build configuration. This is possible in
both Maven and Gradle.
The format you mentioned is for Maven
You can automatically expand properties from the Maven project by
using resource filtering. If you use the spring-boot-starter-parent,
you can then refer to your Maven ‘project properties’ with #..#
placeholders
Update
With Spring Boot Actuator dependency added to pom.xml
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
and
info endpoint exposed (for http : management.endpoints.web.exposure.include=info )
a quick verification of this can be done.
Add the following property to pom.xml
<properties>
<app.info.test>Test Value</app.info.test>
</properties>
and following entries in the application.properties file
info.app.name= Test App
info.app.java.source=1.8
info.app.test=#app.info.test#
Hitting http://localhost:8080/actuator/info will give the following response
{"app":{"name":"Test App","java":{"source":"1.8"},"test":"Test Value"}}
Straight Forward answer is the value which you store with #name# in application.properties are initialized when your project build start (based on same parameter name you pass with command).
It's used when you want to pass value of that variable at time of build
or value which are different based on environment.If you don't do that then it value becomes fixed.
when you're want to pass some parameter which are constant or repetitively use in your application like mail configuration or AWS configuration, version or etc. that things define in application.properties file.
I've got a small project running Spring Boot and Spring Cloud Streams with version Greenwich.SR4.
So far I've tried to include the following dependency.
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-actuator-autoconfigure</artifactId>
</dependency>
Wanting to have a /check/health endpoint which basically returns a code 200.
I've modified the config accordingly so that I don't have useless health configs within.
management.endpoints.web.base-path=/check
management.endpoint.health.enabled=true
management.health.solr.enabled=false
management.health.elasticsearch.enabled=false
However, whenever I try to run localhost:8080/check/health a 404 is prompted. What could be happening?
Also mentioning that I've tried including my own #RestController but same behavior happens.
The URL for the health check should be http://localhost:8080/check/health, not /check/status.
It is depends on the Spring-Boot version. After version 2.0 the path name is manage, so your right url is: http://localhost:8080/check/health
You can also change that with (.yml version):
management:
context-path: /manage
security:
enabled: false
Our application is based on Spring-boot 2.0. I've enabled basic security by adding the following dependency to pom.xml:
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
<version>2.0.4.RELEASE</version>
</dependency>
I also have added properties so that I can define my own userid and password for basic security, instead of the generated ones. I defined them like this in /resources/applicaiton.properties file:
security.user.name=user1
security.user.password=pass1
When I startup my application, I can see that is still generates the password for me in the log. Also, I am unable to login using user1/pass1 combination. I can only successfully login with the user=user and password=generated-password-from-log file.
Why won't spring security allow me to login with user1/pass1? What could be the problem?
Those properties need the spring prefix.
spring.security.user.name=user # Default user name.
spring.security.user.password= # Password for the default user name.
If I want to configure something I often take a look at this List
I hope this helps.
i have simple application using Spring Boot. I wanted allow method caching with JSR107 - JCache. So with help of tutorial i put together this code :
#CacheResult(cacheName = "testpoc")
public Country getCountry(Integer id){
System.out.println("---> Loading country with code '" + id + "'");
return new Country(id, "X", "Title");
}
with this POM file
...
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
<version>1.4.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-cache</artifactId>
<version>1.4.0.RELEASE</version>
</dependency>
<dependency>
<groupId>javax.cache</groupId>
<artifactId>cache-api</artifactId>
<version>1.0.0</version>
</dependency>
</dependencies>
...
(dependency 'spring-boot-starter-web' is there for simple REST service which call getCountry method)
Everything works like documentations says - method is invoked only once.
Now i wanted to try it on WildFly 10 application server
I have modified pom file :
excluded tomcat
exluded spring-boot-starter-cache
added infinispan-jcache (because i want to use cache configured / managed by wildfly in standalone/domain.xml)
Check pom file here on pastebin.
Problem is, that i am receiving following error :
Cannot find cache named 'java:jboss/infinispan/app-cache'
(i have tried to use both JNDI assigned and name to infinispan cache configured in wildfly).
Following code created Cache object (so i can used it) :
CacheManager cacheManager = Caching.getCachingProvider().getCacheManager();
Cache<String, String> cache = cacheManager.createCache("testpoc", new MutableConfiguration<String, String>());
Question :
It is possible to use JCache method caching on WildFly 10 using Infinispan managed by WildFly ?
Or Infinispan should be used for method caching like JCache, hence JCache has "more functionality" than Infinispan.
Thank you very much
PS :It is not problem for me to put whole code on github and post link - it is few lines of code ...
There are a couple of problems with your approach so let me go through them in steps.
At first you need to use proper Infinispan setup. Infinispan bits shipped with WF should be considered as internal or private. In order to use Infinispan in your app properly - either add org.infinispan:infinispan-embedded to your deployment or install Infinispan Wildfly modules. You can find installation guide here (it's a bit outdated but still, the procedure is exactly the same - unpack modules into WF and use Dependencies MANIFEST.MF entry).
Once you have successfully installed Infinispan (or added it to your app), you need to consider whether you want to use Spring Cache or JCache. If you're only interested in using annotations - I would recommend the former since it's much easier to setup (all you need to do is to add #EnableCaching to one of your configurations). Finally with Spring Cache you will create an Infinispan CacheManager bean. An example can be found here.
Final note - if you still need to use JCache - use this manual to setup Caching Provider.
Hi I have move on to spring tool suite 3.7.0 with the highly anticipated feature of YAML editor as described here https://spring.io/blog/2015/06/30/spring-tool-suite-3-7-0-released specially the content assist that it provides .
The issue I am having is that my properties class as below
#ConfigurationProperties(prefix="datasource.ucp")
#Data
public Class DumbProperties{
private String url;
private String user;
...
}
does work but when I open my application.yml I still have to provide these manually the content assist doesnt work .ALso STS givem me a warning that the property doesnt exists .Screen shot below
ALso the maven entry for the same to find #ConfigurationProperties are added as below
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
<optional>true</optional>
anything I am missing here!!
Two things have to be in place for the configuration properties in your own source-code to work.
The "spring-boot-configuration-processor" must be on the classpath
The project must be confgure properly so that Eclipse JDT Annotation Processing is enabled to run the spring-boot-configuration-processor as part of an eclipse workspace build.
It sounds like you have 1. so probably its number 2. that's missing.
Normally, 2. should be configured automatically by STS, but it does this as part of m2e project configuration. If you just added the configuration-processor by pasting the xml into your pom, then its likely the project-configurator has not yet been executed. So try forcing it by selecting "Update Project" from the "Maven" context menu (accessed by right click on your project).
If that doesn't help, we'll have to troubleshoot a bit more as I don't know what's missing from your project's setup.