commit some codes

04.系统编码/Backend/pom.xml

@@ -15,11 +15,35 @@
     <description>Demo project for Spring Boot</description>
     <properties>
         <java.version>11</java.version>
+        <log4j2.version>2.15.0</log4j2.version>
     </properties>
     <dependencies>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-web</artifactId>
+            <exclusions>
+                <exclusion>
+                    <artifactId>log4j-api</artifactId>
+                    <groupId>org.apache.logging.log4j</groupId>
+                </exclusion>
+                <exclusion>
+                    <artifactId>log4j-to-slf4j</artifactId>
+                    <groupId>org.apache.logging.log4j</groupId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+
+<!--        <dependency>-->
+<!--            <groupId>org.apache.logging.log4j</groupId>-->
+<!--            <artifactId>log4j-core</artifactId>-->
+<!--            <version>2.15.0</version>-->
+<!--        </dependency>-->
+
+        <!-- https://mvnrepository.com/artifact/commons-codec/commons-codec -->
+        <dependency>
+            <groupId>commons-codec</groupId>
+            <artifactId>commons-codec</artifactId>
+            <version>1.7</version>
         </dependency>
 
         <dependency>
@@ -77,7 +101,6 @@
             <artifactId>bcprov-jdk15on</artifactId>
             <version>1.59</version>
         </dependency>
-
     </dependencies>
 
     <build>