fix(log):replace log4j by logback (#45)

Author: 2b3c511

.gitignore

@@ -10,4 +10,5 @@ build/
 *.txt
 target/
 *.versionsBackup
+logs/
 

backend/pom.xml

@@ -38,6 +38,8 @@
     <java.version>1.8</java.version>
     <skipTests>true</skipTests>
     <spotless.version>2.4.2</spotless.version>
+    <slf4j.version>1.7.12</slf4j.version>
+    <logback.version>1.2.11</logback.version>
   </properties>
 
 
@@ -61,8 +63,14 @@
     </dependency>
 
     <dependency>
-      <groupId>org.springframework.boot</groupId>
-      <artifactId>spring-boot-starter-log4j2</artifactId>
+      <groupId>org.slf4j</groupId>
+      <artifactId>slf4j-api</artifactId>
+      <version>${slf4j.version}</version>
+    </dependency>
+    <dependency>
+      <groupId>ch.qos.logback</groupId>
+      <artifactId>logback-classic</artifactId>
+      <version>${logback.version}</version>
     </dependency>
 
 

backend/src/main/resources/application-dev.properties

@@ -18,7 +18,7 @@
 #
 
 # Designate the log configuration file
-logging.config=classpath:log4j2.xml
+logging.classpath=logback.xml
 
 # Set port and context path
 server.port=9090

backend/src/main/resources/application-prod.properties

@@ -17,7 +17,7 @@
 # under the License.
 #
 
-logging.config=classpath:log4j2-prod.xml
+logging.classpath=logback.xml
 
 server.port=9089
 server.servlet.context-path=/api

backend/src/main/resources/application-test.properties

@@ -17,8 +17,7 @@
 # under the License.
 #
 
-logging.config=classpath:log4j2.xml
-
+logging.classpath=logback.xml
 server.port=8079
 server.servlet.context-path=/api