未设置Spring Boot配置属性

Question

I am trying to set up a clamav virus scanner in a Spring Boot environment. So I want to set the host and port in a properties file, clamav.properties, located in my resources directory along with the application.properties file. it looks like this:

clamav.host=localhost
clamav.port=3310
clamav.timeout=1000

I have this class:

@ConfigurationProperties("clamav.properties")
public class ClamAvClient {

static final Logger logger = LoggerFactory.getLogger(ClamAvClient.class);

@Value("${clamav.host}")
private String clamHost;

@Value("${clamav.port}")
private int clamPort;

@Value("${clamav.timeout}")
private int clamTimeout;

 public boolean ping() throws IOException {
     logger.debug("Host:"+clamHost+" Port:"+clamPort);
     blah.....
 }

private static byte[] asBytes(String s) {
    return s.getBytes(StandardCharsets.US_ASCII);
}   

public String getClamHost() {
    return clamHost;
}

public void setClamHost(String clamHost) {
    this.clamHost = clamHost;
}

public int getClamPort() {
    return clamPort;
}

public void setClamPort(int clamPort) {
    this.clamPort = clamPort;
}

public int getClamTimeout() {
    return clamTimeout;
}

public void setClamTimeout(int clamTimeout) {
    this.clamTimeout = clamTimeout;
}

}

It's not connecting and in the logs I get this:

2017-09-23 20:39:45.947 DEBUG 28857 --- [http-nio-8080-exec-2] xxx.ClamAvClient  : Host:null Port:0

So those values are clearly not getting set. What am I doing wrong? I am using the managed version of spring-boot-starter-web, which my Eclipse is saying is 1.4.3-RELEASE

Any Ideas?

Answer 1

Either use @ConfigurationProperties to map group of properties to a Class using Configuration Processor.

Using @Value inside @ConfigurationProperties doesn`t look right.

All you need to map your properties to the class is :

@Configuration
@ConfigurationProperties(prefix="clamav")
public class ClamAvClient {

static final Logger logger = LoggerFactory.getLogger(ClamAvClient.class);


private String host;


private int port;


private int timeout;

//getters and setters

}

prefix ="clamav" matches your prefixes in the properties file.

host,port,timeout matches the properties of the class.