diff --git a/project2/.idea/artifacts/project2_war_exploded.xml b/project2/.idea/artifacts/project2_war_exploded.xml
index 7143a7d..da8803b 100644
--- a/project2/.idea/artifacts/project2_war_exploded.xml
+++ b/project2/.idea/artifacts/project2_war_exploded.xml
@@ -19,17 +19,12 @@
           <element id="library" level="project" name="Maven: javax.servlet:javax.servlet-api:4.0.1" />
           <element id="library" level="project" name="Maven: jstl:jstl:1.2" />
           <element id="library" level="project" name="Maven: junit:junit:4.13.1" />
-          <element id="library" level="project" name="Maven: log4j:log4j:1.2.16" />
           <element id="library" level="project" name="Maven: mysql:mysql-connector-java:8.0.28" />
-          <element id="library" level="project" name="Maven: org.apache.logging.log4j:log4j-api:2.12.4" />
-          <element id="library" level="project" name="Maven: org.apache.logging.log4j:log4j-core:2.12.4" />
           <element id="library" level="project" name="Maven: org.apache.tomcat.embed:tomcat-embed-core:9.0.73" />
           <element id="library" level="project" name="Maven: org.apache.tomcat:tomcat-annotations-api:9.0.73" />
           <element id="library" level="project" name="Maven: org.hamcrest:hamcrest-core:1.3" />
           <element id="library" level="project" name="Maven: org.mybatis:mybatis-spring:2.0.7" />
           <element id="library" level="project" name="Maven: org.mybatis:mybatis:3.5.7" />
-          <element id="library" level="project" name="Maven: org.slf4j:slf4j-api:1.6.1" />
-          <element id="library" level="project" name="Maven: org.slf4j:slf4j-log4j12:1.6.1" />
           <element id="library" level="project" name="Maven: org.springframework.security:spring-security-config:5.7.8" />
           <element id="library" level="project" name="Maven: org.springframework.security:spring-security-core:5.7.8" />
           <element id="library" level="project" name="Maven: org.springframework.security:spring-security-crypto:5.7.8" />
@@ -48,6 +43,7 @@
           <element id="library" level="project" name="Maven: taglibs:standard:1.1.2" />
           <element id="library" level="project" name="Maven: org.apache.commons:commons-csv:1.10.0" />
           <element id="library" level="project" name="Maven: commons-io:commons-io:2.12.0" />
+          <element id="library" level="project" name="Maven: log4j:log4j:1.2.17" />
         </element>
       </element>
     </root>
diff --git a/project2/out/artifacts/project2_war_exploded/WEB-INF/classes/applicationContext.xml b/project2/out/artifacts/project2_war_exploded/WEB-INF/classes/applicationContext.xml
index 1af98d1..3ad282e 100644
--- a/project2/out/artifacts/project2_war_exploded/WEB-INF/classes/applicationContext.xml
+++ b/project2/out/artifacts/project2_war_exploded/WEB-INF/classes/applicationContext.xml
@@ -6,6 +6,7 @@
        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
                             http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc https://www.springframework.org/schema/mvc/spring-mvc.xsd">
 
+
     <!-- 开启注解扫描 -->
     <context:component-scan base-package="cyou.chenx221"/>
 
diff --git a/project2/out/artifacts/project2_war_exploded/WEB-INF/classes/log4j.properties b/project2/out/artifacts/project2_war_exploded/WEB-INF/classes/log4j.properties
new file mode 100644
index 0000000..ba59947
--- /dev/null
+++ b/project2/out/artifacts/project2_war_exploded/WEB-INF/classes/log4j.properties
@@ -0,0 +1,11 @@
+log4j.rootLogger=INFO, stdout
+
+log4j.appender.stdout=org.apache.log4j.ConsoleAppender
+log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
+log4j.appender.stdout.layout.ConversionPattern=%d [%t] %-5p %c - %m%n
+
+log4j.logger.your.package.name=INFO, sql
+
+log4j.appender.sql=org.apache.log4j.ConsoleAppender
+log4j.appender.sql.layout=org.apache.log4j.PatternLayout
+log4j.appender.sql.layout.ConversionPattern=%d [%t] %-5p %c - %m%n
diff --git a/project2/out/artifacts/project2_war_exploded/WEB-INF/classes/log4j2.properties b/project2/out/artifacts/project2_war_exploded/WEB-INF/classes/log4j2.properties
new file mode 100644
index 0000000..906ccfd
--- /dev/null
+++ b/project2/out/artifacts/project2_war_exploded/WEB-INF/classes/log4j2.properties
@@ -0,0 +1,10 @@
+status = warn
+
+appender.console.type = Console
+appender.console.name = ConsoleAppender
+appender.console.target = SYSTEM_OUT
+appender.console.layout.type = PatternLayout
+appender.console.layout.pattern = %d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n
+
+rootLogger.level = debug
+rootLogger.appenderRef.console.ref = ConsoleAppender
diff --git a/project2/out/artifacts/project2_war_exploded/WEB-INF/classes/mapper/TeacherMapper.xml b/project2/out/artifacts/project2_war_exploded/WEB-INF/classes/mapper/TeacherMapper.xml
index 9de3184..1e1bbed 100644
--- a/project2/out/artifacts/project2_war_exploded/WEB-INF/classes/mapper/TeacherMapper.xml
+++ b/project2/out/artifacts/project2_war_exploded/WEB-INF/classes/mapper/TeacherMapper.xml
@@ -38,11 +38,11 @@
                 AND sex = #{sex}
             </if>
             <if test="course !=null">
-                <if test="course.CourseID != null">
-                    AND c.CourseID = #{course.courseID}
+                <if test="course.CourseID != -1">
+                    AND c.CourseID = #{course.CourseID}
                 </if>
                 <if test="course.CourseName != null">
-                    AND c.CourseName LIKE CONCAT('%', #{course.courseName}, '%')
+                    AND c.CourseName LIKE CONCAT('%', #{course.CourseName}, '%')
                 </if>
             </if>
             <if test="classes != null">
diff --git a/project2/out/artifacts/project2_war_exploded/WEB-INF/classes/mybatis-config.xml b/project2/out/artifacts/project2_war_exploded/WEB-INF/classes/mybatis-config.xml
index 6f46284..3aa3c98 100644
--- a/project2/out/artifacts/project2_war_exploded/WEB-INF/classes/mybatis-config.xml
+++ b/project2/out/artifacts/project2_war_exploded/WEB-INF/classes/mybatis-config.xml
@@ -3,6 +3,9 @@
         PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
         "http://mybatis.org/dtd/mybatis-3-config.dtd">
 <configuration>
+    <settings>
+        <setting name="logImpl" value="LOG4J2" />
+    </settings>
     <!-- 配置类型别名 -->
     <typeAliases>
         <package name="cyou.chenx221.pojo"/>
@@ -17,4 +20,5 @@
         <mapper resource="mapper/TeacherMapper.xml"/>
         <!-- 可以添加其他的映射器配置 -->
     </mappers>
+
 </configuration>
diff --git a/project2/out/artifacts/project2_war_exploded/WEB-INF/lib/log4j-1.2.17.jar b/project2/out/artifacts/project2_war_exploded/WEB-INF/lib/log4j-1.2.17.jar
new file mode 100644
index 0000000..1d425cf
Binary files /dev/null and b/project2/out/artifacts/project2_war_exploded/WEB-INF/lib/log4j-1.2.17.jar differ
diff --git a/project2/out/artifacts/project2_war_exploded/WEB-INF/views/teachermanage.jsp b/project2/out/artifacts/project2_war_exploded/WEB-INF/views/teachermanage.jsp
index 98585b0..abd1bb9 100644
--- a/project2/out/artifacts/project2_war_exploded/WEB-INF/views/teachermanage.jsp
+++ b/project2/out/artifacts/project2_war_exploded/WEB-INF/views/teachermanage.jsp
@@ -322,16 +322,17 @@
                                                 </div>
                                             </div>
                                         </div>
-                                        <div class="row mb-2">
-                                            <div class="col-12">
-                                                <label for="sex-select2" style="color: rgba(0,0,0,.6);">性别</label>
-                                                <select name="sex" id="sex-select2">
-                                                    <option value="">请选择性别</option>
-                                                    <option value="男">男</option>
-                                                    <option value="女">女</option>
-                                                </select>
-                                            </div>
-                                        </div>
+                                        <%--                                        修改性别什么鬼--%>
+                                        <%--                                        <div class="row mb-2">--%>
+                                        <%--                                            <div class="col-12">--%>
+                                        <%--                                                <label for="sex-select2" style="color: rgba(0,0,0,.6);">性别</label>--%>
+                                        <%--                                                <select name="sex" id="sex-select2">--%>
+                                        <%--                                                    <option value="">请选择性别</option>--%>
+                                        <%--                                                    <option value="男">男</option>--%>
+                                        <%--                                                    <option value="女">女</option>--%>
+                                        <%--                                                </select>--%>
+                                        <%--                                            </div>--%>
+                                        <%--                                        </div>--%>
                                         <div class="row mb-2">
                                             <div class="col-12">
                                                 <div class="form-outline">
diff --git a/project2/out/artifacts/project2_war_exploded/WEB-INF/web.xml b/project2/out/artifacts/project2_war_exploded/WEB-INF/web.xml
index 9d7d1ee..3482565 100644
--- a/project2/out/artifacts/project2_war_exploded/WEB-INF/web.xml
+++ b/project2/out/artifacts/project2_war_exploded/WEB-INF/web.xml
@@ -3,6 +3,10 @@
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
          version="4.0">
+
+    <!-- 其他配置 -->
+    <!-- ... -->
+
     <servlet>
         <servlet-name>dispatcherServlet</servlet-name>
         <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
@@ -11,6 +15,7 @@
             <param-value>classpath:applicationContext.xml</param-value>
         </init-param>
         <load-on-startup>1</load-on-startup>
+
     </servlet>
     <servlet-mapping>
         <servlet-name>dispatcherServlet</servlet-name>
diff --git a/project2/pom.xml b/project2/pom.xml
index 2d7a384..d582c87 100644
--- a/project2/pom.xml
+++ b/project2/pom.xml
@@ -139,23 +139,28 @@
             <artifactId>jackson-annotations</artifactId>
             <version>2.12.7</version>
         </dependency>
-        <dependency>
-            <groupId>org.slf4j</groupId>
-            <artifactId>slf4j-log4j12</artifactId>
-            <version>1.6.1</version>
-        </dependency>
+<!--        <dependency>-->
+<!--            <groupId>org.slf4j</groupId>-->
+<!--            <artifactId>slf4j-log4j12</artifactId>-->
+<!--            <version>1.6.1</version>-->
+<!--        </dependency>-->
         <!-- 日志工具包 -->
         <dependency>
-            <groupId>org.apache.logging.log4j</groupId>
-            <artifactId>log4j-api</artifactId>
-            <version>2.12.4</version>
-        </dependency>
-        <!--日志核心包-->
-        <dependency>
-            <groupId>org.apache.logging.log4j</groupId>
-            <artifactId>log4j-core</artifactId>
-            <version>2.12.4</version>
+            <groupId>log4j</groupId>
+            <artifactId>log4j</artifactId>
+            <version>1.2.17</version>
         </dependency>
+<!--        <dependency>-->
+<!--            <groupId>org.apache.logging.log4j</groupId>-->
+<!--            <artifactId>log4j-api</artifactId>-->
+<!--            <version>2.12.4</version>-->
+<!--        </dependency>-->
+<!--        &lt;!&ndash;日志核心包&ndash;&gt;-->
+<!--        <dependency>-->
+<!--            <groupId>org.apache.logging.log4j</groupId>-->
+<!--            <artifactId>log4j-core</artifactId>-->
+<!--            <version>2.12.4</version>-->
+<!--        </dependency>-->
         <dependency>
             <groupId>org.apache.commons</groupId>
             <artifactId>commons-csv</artifactId>
diff --git a/project2/src/main/resources/applicationContext.xml b/project2/src/main/resources/applicationContext.xml
index 1af98d1..3ad282e 100644
--- a/project2/src/main/resources/applicationContext.xml
+++ b/project2/src/main/resources/applicationContext.xml
@@ -6,6 +6,7 @@
        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
                             http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc https://www.springframework.org/schema/mvc/spring-mvc.xsd">
 
+
     <!-- 开启注解扫描 -->
     <context:component-scan base-package="cyou.chenx221"/>
 
diff --git a/project2/src/main/resources/log4j.properties b/project2/src/main/resources/log4j.properties
new file mode 100644
index 0000000..41bf498
--- /dev/null
+++ b/project2/src/main/resources/log4j.properties
@@ -0,0 +1,11 @@
+log4j.rootLogger=WARN, stdout
+
+log4j.appender.stdout=org.apache.log4j.ConsoleAppender
+log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
+log4j.appender.stdout.layout.ConversionPattern=%d [%t] %-5p %c - %m%n
+
+log4j.logger.your.package.name=WARN, sql
+
+log4j.appender.sql=org.apache.log4j.ConsoleAppender
+log4j.appender.sql.layout=org.apache.log4j.PatternLayout
+log4j.appender.sql.layout.ConversionPattern=%d [%t] %-5p %c - %m%n
diff --git a/project2/src/main/resources/mapper/TeacherMapper.xml b/project2/src/main/resources/mapper/TeacherMapper.xml
index 9de3184..1e1bbed 100644
--- a/project2/src/main/resources/mapper/TeacherMapper.xml
+++ b/project2/src/main/resources/mapper/TeacherMapper.xml
@@ -38,11 +38,11 @@
                 AND sex = #{sex}
             </if>
             <if test="course !=null">
-                <if test="course.CourseID != null">
-                    AND c.CourseID = #{course.courseID}
+                <if test="course.CourseID != -1">
+                    AND c.CourseID = #{course.CourseID}
                 </if>
                 <if test="course.CourseName != null">
-                    AND c.CourseName LIKE CONCAT('%', #{course.courseName}, '%')
+                    AND c.CourseName LIKE CONCAT('%', #{course.CourseName}, '%')
                 </if>
             </if>
             <if test="classes != null">
diff --git a/project2/src/main/resources/mybatis-config.xml b/project2/src/main/resources/mybatis-config.xml
index 6f46284..3aa3c98 100644
--- a/project2/src/main/resources/mybatis-config.xml
+++ b/project2/src/main/resources/mybatis-config.xml
@@ -3,6 +3,9 @@
         PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
         "http://mybatis.org/dtd/mybatis-3-config.dtd">
 <configuration>
+    <settings>
+        <setting name="logImpl" value="LOG4J2" />
+    </settings>
     <!-- 配置类型别名 -->
     <typeAliases>
         <package name="cyou.chenx221.pojo"/>
@@ -17,4 +20,5 @@
         <mapper resource="mapper/TeacherMapper.xml"/>
         <!-- 可以添加其他的映射器配置 -->
     </mappers>
+
 </configuration>
diff --git a/project2/web/WEB-INF/web.xml b/project2/web/WEB-INF/web.xml
index 9d7d1ee..3482565 100644
--- a/project2/web/WEB-INF/web.xml
+++ b/project2/web/WEB-INF/web.xml
@@ -3,6 +3,10 @@
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
          version="4.0">
+
+    <!-- 其他配置 -->
+    <!-- ... -->
+
     <servlet>
         <servlet-name>dispatcherServlet</servlet-name>
         <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
@@ -11,6 +15,7 @@
             <param-value>classpath:applicationContext.xml</param-value>
         </init-param>
         <load-on-startup>1</load-on-startup>
+
     </servlet>
     <servlet-mapping>
         <servlet-name>dispatcherServlet</servlet-name>