[Java] 如何修改logback.xml配置文件在resource以外的位置

public URL findURLOfDefaultConfigurationFile(boolean updateStatus) {
ClassLoader myClassLoader = Loader.getClassLoaderOfObject(this);
URL url = findConfigFileURLFromSystemProperties(myClassLoader, updateStatus);
if (url != null) {
return url;
}
url = getResource(TEST_AUTOCONFIG_FILE, myClassLoader, updateStatus);
if (url != null) {
return url;
}
url = getResource(GROOVY_AUTOCONFIG_FILE, myClassLoader, updateStatus);
if (url != null) {
return url;
}
return getResource(AUTOCONFIG_FILE, myClassLoader, updateStatus);
}

public class ContextInitializer {
final public static String GROOVY_AUTOCONFIG_FILE = "logback.groovy";
final public static String AUTOCONFIG_FILE = "logback.xml";
final public static String TEST_AUTOCONFIG_FILE = "logback-test.xml";
final public static String CONFIG_FILE_PROPERTY = "logback.configurationFile";

URL url = findConfigFileURLFromSystemProperties(myClassLoader, updateStatus);
if (url != null) {
return url;
}

private URL findConfigFileURLFromSystemProperties(ClassLoader classLoader, boolean updateStatus) {
String logbackConfigFile = OptionHelper.getSystemProperty(CONFIG_FILE_PROPERTY);

final public static String CONFIG_FILE_PROPERTY = "logback.configurationFile";</div>
<div>OptionHelper.getSystemProperty中的内容是</div>
public static String getSystemProperty(String key) {
try {
return System.getProperty(key);
} catch (SecurityException e) {
return null;
}
}

private static final Logger log;
static {
System.setProperty("logback.configurationFile","./logback.xml");
log = LoggerFactory.getLogger(MonitorApplication.class);
}

private static final Logger log = LoggerFactory.getLogger(MonitorApplication.class);;
static {
System.setProperty("logback.configurationFile","./logback.xml");
}
public static void main(String[] args) {}

public class MonitorApplication {
private static final Logger log = LoggerFactory.getLogger(MonitorApplication.class);

java -Dlogback.configurationFile=./logback.xml -jar monitor-1.0-SNAPSHOT.jar

<build>
<resources>
<resource>
<directory>src/main/resources</directory>
<excludes>
<exclude>*.properties</exclude>
<exclude>*.xml</exclude>
</excludes>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
 
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<configuration>
<skipTests>true</skipTests>
</configuration>
</plugin>
</plugins>
</build>

<resources>
<resource>
<directory>src/main/resources</directory>
<excludes>
<exclude>*.properties</exclude>
<exclude>*.xml</exclude>
</excludes>
</resource>
</resources>

java -Xms100m -Xmx100m -jar myboot001-0.0.1-SNAPSHOT.jar &

java -Xms100m -Xmx100m -jar myboot001-0.0.1-SNAPSHOT.jar --spring.config.location=configs/application.properties --logging.config=./log4j2.xml >> /dev/null 2>&1 &

java -Xms100m -Xmx100m -jar myboot001-0.0.1-SNAPSHOT.jar --spring.config.location=configs/application.properties --debug

<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-log4j2</artifactId>
</dependency>

<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-redis</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-jdbc</artifactId>
</dependency>

<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-logging</artifactId>
</exclusion>
</exclusions>
</dependency>