优化

src/main/java/top/fjy8018/designpattern/pattern/behavior/command/CloseCourseVideoCommand.java

@@ -1,18 +1,17 @@
 package top.fjy8018.designpattern.pattern.behavior.command;
 
+import lombok.AllArgsConstructor;
+
 /**
  * 关闭视频命令
  *
  * @author F嘉阳
  * @date 2020/7/21 15:58
  */
+@AllArgsConstructor
 public class CloseCourseVideoCommand implements Command {
     private final CourseVideo courseVideo;
 
-    public CloseCourseVideoCommand(CourseVideo courseVideo) {
-        this.courseVideo = courseVideo;
-    }
-
     @Override
     public void execute() {
         courseVideo.close();

src/main/java/top/fjy8018/designpattern/pattern/behavior/command/CourseVideo.java

@@ -1,18 +1,17 @@
 package top.fjy8018.designpattern.pattern.behavior.command;
 
+import lombok.AllArgsConstructor;
+
 /**
  * 操作视频
  *
  * @author F嘉阳
  * @date 2020/7/21 15:58
  */
+@AllArgsConstructor
 public class CourseVideo {
     private final String name;
 
-    public CourseVideo(String name) {
-        this.name = name;
-    }
-
     public void open() {
         System.out.println(this.name + "课程视频开放");
     }

src/main/java/top/fjy8018/designpattern/pattern/behavior/command/OpenCourseVideoCommand.java

@@ -1,18 +1,17 @@
 package top.fjy8018.designpattern.pattern.behavior.command;
 
+import lombok.AllArgsConstructor;
+
 /**
  * 打开视频命令
  *
  * @author F嘉阳
  * @date 2020/7/21 15:58
  */
+@AllArgsConstructor
 public class OpenCourseVideoCommand implements Command {
     private final CourseVideo courseVideo;
 
-    public OpenCourseVideoCommand(CourseVideo courseVideo) {
-        this.courseVideo = courseVideo;
-    }
-
     @Override
     public void execute() {
         courseVideo.open();

src/main/java/top/fjy8018/designpattern/pattern/behavior/mediator/User.java

@@ -1,24 +1,17 @@
 package top.fjy8018.designpattern.pattern.behavior.mediator;
 
+import lombok.AllArgsConstructor;
+import lombok.Data;
+
 /**
  * @author F嘉阳
  * @date 2020/7/21 16:20
  */
+@Data
+@AllArgsConstructor
 public class User {
     private String name;
 
-    public String getName() {
-        return name;
-    }
-
-    public void setName(String name) {
-        this.name = name;
-    }
-
-    public User(String name) {
-        this.name = name;
-    }
-
     public void sendMessage(String message) {
         // 只和中介者交互
         StudyGroup.showMessage(this, message);

src/test/java/top/fjy8018/designpattern/pattern/behavior/command/CommandTest.java

@@ -4,7 +4,7 @@ import org.junit.jupiter.api.Test;
 
 /**
  * @author F嘉阳
- * @date 2020/7/20 16:02
+ * @date 2020/7/21 16:02
  */
 class CommandTest {