添加了课程模块的功能：

1.小程序端用户根据类别查看课程列表
2.小程序端用户根据id查询课程详情
3.小程序端用户生成推广码

src/main/java/com/greenorange/promotion/constant/SystemConstant.java

@@ -7,4 +7,10 @@ public interface SystemConstant {
      */
     String VERIFICATION_CODE = "verificationCode";
 
+
+    /**
+     * 文件公共前缀
+     */
+    String FILE_COMMON_PREFIX = "http://27.30.77.229:9091/file/download/";
+
 }

src/main/java/com/greenorange/promotion/controller/course/CourseController.java

@@ -12,15 +12,21 @@ import com.greenorange.promotion.common.ResultUtils;
 import com.greenorange.promotion.constant.UserConstant;
 import com.greenorange.promotion.model.dto.CommonBatchRequest;
 import com.greenorange.promotion.model.dto.CommonRequest;
+import com.greenorange.promotion.model.dto.CommonStringRequest;
 import com.greenorange.promotion.model.dto.course.CourseAddRequest;
+import com.greenorange.promotion.model.dto.course.CourseQrcodeAddRequest;
 import com.greenorange.promotion.model.dto.course.CourseQueryRequest;
 import com.greenorange.promotion.model.dto.course.CourseUpdateRequest;
 import com.greenorange.promotion.model.entity.Course;
 import com.greenorange.promotion.model.entity.CourseChapter;
+import com.greenorange.promotion.model.vo.course.CourseCardVO;
+import com.greenorange.promotion.model.vo.course.CourseDetailVO;
 import com.greenorange.promotion.model.vo.course.CourseVO;
+import com.greenorange.promotion.model.vo.courseChapter.CourseChapterVO;
 import com.greenorange.promotion.service.common.CommonService;
 import com.greenorange.promotion.service.course.CourseChapterService;
 import com.greenorange.promotion.service.course.CourseService;
+import com.greenorange.promotion.service.wechat.WechatGetQrcodeService;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
 import jakarta.annotation.Resource;
@@ -52,6 +58,64 @@ public class CourseController {
     @Resource
     private CourseChapterService courseChapterService;
 
+    @Resource
+    private WechatGetQrcodeService wechatGetQrcodeService;
+
+
+    /**
+     * 小程序端用户根据类别查看课程列表
+     * @param commonStringRequest 课程类别
+     * @return 课程信息列表
+     */
+    @PostMapping("query/type")
+    @Operation(summary = "小程序端用户根据类别查看课程列表", description = "参数：课程添加请求体，权限：管理员，方法名：miniQueryCourseByType")
+    @RequiresPermission(mustRole = UserConstant.DEFAULT_ROLE)
+    @SysLog(title = "课程管理", content = "小程序端用户根据类别查看课程列表")
+    public BaseResponse<List<CourseCardVO>> miniQueryCourseByType(@Valid @RequestBody CommonStringRequest commonStringRequest) {
+        String courseType = commonStringRequest.getTemplateString();
+        LambdaQueryWrapper<Course> lambdaQueryWrapper = commonService.buildQueryWrapperByField(Course::getType, courseType, courseService);
+        List<Course> courseList = courseService.list(lambdaQueryWrapper);
+        List<CourseCardVO> courseCardVOS = commonService.convertList(courseList, CourseCardVO.class);
+        return ResultUtils.success(courseCardVOS);
+    }
+
+
+    /**
+     * 小程序端用户根据id查询课程详情
+     * @param commonRequest 课程id
+     * @return 课程信息列表
+     */
+    @PostMapping("query/id")
+    @Operation(summary = "小程序端用户根据id查询课程详情", description = "参数：课程id，权限：管理员，方法名：miniQueryCourseById")
+    @SysLog(title = "课程管理", content = "小程序端用户根据id查询课程详情")
+    public BaseResponse<CourseDetailVO> miniQueryCourseById(@Valid @RequestBody CommonRequest commonRequest) {
+        Long id = commonRequest.getId();
+        Course course = courseService.getById(id);
+        CourseDetailVO courseDetailVO = commonService.copyProperties(course, CourseDetailVO.class);
+        LambdaQueryWrapper<CourseChapter> lambdaQueryWrapper = new LambdaQueryWrapper<>();
+        lambdaQueryWrapper.eq(CourseChapter::getCourseId, id);
+        List<CourseChapter> courseChapterList = courseChapterService.list(lambdaQueryWrapper);
+        List<CourseChapterVO> courseChapterVOS = commonService.convertList(courseChapterList, CourseChapterVO.class);
+        courseDetailVO.setCourseChapters(courseChapterVOS);
+        return ResultUtils.success(courseDetailVO);
+    }
+
+
+    /**
+     * 小程序端用户生成推广码
+     * @param courseQrcodeAddRequest 课程id
+     * @return 课程信息列表
+     */
+    @PostMapping("generate/qrcode")
+    @Operation(summary = "小程序端用户生成推广码", description = "参数：课程id，权限：管理员，方法名：miniGenerateQrcode")
+    @RequiresPermission(mustRole = UserConstant.DEFAULT_ROLE)
+    @SysLog(title = "课程管理", content = "小程序端用户生成推广码")
+    public BaseResponse<String> miniGenerateQrcode(@Valid @RequestBody CourseQrcodeAddRequest courseQrcodeAddRequest) throws Exception {
+        String videoView = wechatGetQrcodeService.getWxCourseQrCode(courseQrcodeAddRequest);
+        return ResultUtils.success(videoView);
+    }
+
+
     /**
      * web端管理员添加课程
      * @param courseAddRequest 课程添加请求体

src/main/java/com/greenorange/promotion/controller/wechat/WechatGetQrcodeController.java

@@ -12,6 +12,7 @@ import com.greenorange.promotion.common.ResultUtils;
 import com.greenorange.promotion.config.WxAccessToken;
 import com.greenorange.promotion.constant.UserConstant;
 import com.greenorange.promotion.model.dto.CommonStringRequest;
+import com.greenorange.promotion.model.dto.course.CourseQrcodeAddRequest;
 import com.greenorange.promotion.service.wechat.WechatGetQrcodeService;
 import com.greenorange.promotion.utils.QRCodeUtil;
 import io.swagger.v3.oas.annotations.Hidden;
@@ -72,7 +73,7 @@ public class WechatGetQrcodeController {
      * @return
      * @throws IOException
      */
-//    @Hidden
+    @Hidden
     @PostMapping("/get/qrcode")
     @Operation(summary = "微信小程序获取二维码", description = "参数：无, 权限：所有人, 方法名：getQrcode")
 //    @RequiresPermission(mustRole = UserConstant.DEFAULT_ROLE)
@@ -88,13 +89,12 @@ public class WechatGetQrcodeController {
      * @return
      * @throws IOException
      */
-//    @Hidden
+    @Hidden
     @PostMapping("/get/course/qrcode")
     @Operation(summary = "微信小程序获取课程码", description = "参数：无, 权限：所有人, 方法名：getCourseQrcode")
 //    @RequiresPermission(mustRole = UserConstant.DEFAULT_ROLE)
-    public BaseResponse<String> getCourseQrcode(@Valid @RequestBody CommonStringRequest commonStringRequest) throws Exception {
+    public BaseResponse<String> getCourseQrcode(@Valid @RequestBody CourseQrcodeAddRequest courseQrcodeAddRequest) throws Exception {
-        String inviteCode = commonStringRequest.getTemplateString();
+        String view = wechatGetQrcodeService.getWxCourseQrCode(courseQrcodeAddRequest);
-        String view = wechatGetQrcodeService.getWxCourseQrCode(inviteCode);
         return ResultUtils.success(view);
     }
 

src/main/java/com/greenorange/promotion/model/dto/course/CourseQrcodeAddRequest.java

@@ -0,0 +1,78 @@
+package com.greenorange.promotion.model.dto.course;
+
+import com.greenorange.promotion.annotation.EnumValue;
+import com.greenorange.promotion.model.enums.CourseTypeEnum;
+import io.swagger.v3.oas.annotations.media.Schema;
+import jakarta.validation.constraints.DecimalMin;
+import jakarta.validation.constraints.Min;
+import jakarta.validation.constraints.NotBlank;
+import lombok.Data;
+
+import java.io.Serializable;
+import java.math.BigDecimal;
+
+/**
+ * 课程推广码生成请求体
+ */
+@Data
+@Schema(description = "课程推广码生成请求体", requiredProperties = {
+        "id",
+        "name",
+        "type",
+        "image",
+        "originPrice",
+        "discountPrice",
+        "invitationCode"
+})
+public class CourseQrcodeAddRequest implements Serializable {
+    /**
+     * 课程ID
+     */
+    @Min(value = 1L, message = "课程ID ID不能小于1")
+    @Schema(description = "课程ID", example = "1")
+    private Long id;
+
+    /**
+     * 课程名称
+     */
+    @NotBlank(message = "课程名称不能为空")
+    @Schema(description = "课程名称", example = "数据分析工程师训练营")
+    private String name;
+
+    /**
+     * 课程类别[考公考研,自媒体,财经]
+     */
+    @NotBlank(message = "课程类别不能为空")
+    @EnumValue(enumClass = CourseTypeEnum.class)
+    @Schema(description = "课程类别[考公考研,自媒体,财经]", example = "自媒体")
+    private String type;
+
+    /**
+     * 课程图片URL
+     */
+    @NotBlank(message = "课程图片URL不能为空")
+    @Schema(description = "课程图片URL", example = "324IEHJDE")
+    private String image;
+
+    /**
+     * 课程原价
+     */
+    @DecimalMin(value = "0.0", message = "课程原价不能小于0")
+    @Schema(description = "课程原价", example = "3499")
+    private BigDecimal originPrice;
+
+    /**
+     * 折扣价格
+     */
+    @DecimalMin(value = "0.0", message = "折扣价格不能小于0")
+    @Schema(description = "折扣价格", example = "2499")
+    private BigDecimal discountPrice;
+
+    /**
+     * 邀请码
+     */
+    @Schema(description = "邀请码", example = "666999")
+    @NotBlank(message = "邀请码不能为空")
+    private String invitationCode;
+
+}

src/main/java/com/greenorange/promotion/model/dto/userInfo/UserInfoRegisterRequest.java

@@ -42,6 +42,7 @@ public class UserInfoRegisterRequest implements Serializable {
      * 邀请码
      */
     @Schema(description = "邀请码", example = "666999")
+    @NotBlank(message = "邀请码不能为空")
     private String invitationCode;
 
     /**

src/main/java/com/greenorange/promotion/model/entity/CourseChapter.java

@@ -29,12 +29,12 @@ public class CourseChapter implements Serializable {
     /**
      * 章节时长（格式可自定义，如"00:10:00"）
      */
-    private String duration;
+    private Long duration;
 
     /**
      * 试看权限
      */
-    private Object permissions;
+    private String permissions;
 
     /**
      * 视频文件 view 值

src/main/java/com/greenorange/promotion/model/vo/course/CourseCardVO.java

@@ -0,0 +1,54 @@
+package com.greenorange.promotion.model.vo.course;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.Data;
+
+import java.io.Serial;
+import java.io.Serializable;
+import java.math.BigDecimal;
+
+@Data
+@Schema(description = "课程卡片 视图对象")
+public class CourseCardVO implements Serializable {
+
+    /**
+     * 课程ID
+     */
+    @Schema(description = "课程ID", example = "1")
+    private Long id;
+
+    /**
+     * 课程名称
+     */
+    @Schema(description = "课程名称", example = "数据分析工程师训练营")
+    private String name;
+
+    /**
+     * 课程类别[考公考研,自媒体,财经]
+     */
+    @Schema(description = "课程类别[考公考研,自媒体,财经]", example = "自媒体")
+    private String type;
+
+    /**
+     * 课程图片URL
+     */
+    @Schema(description = "课程图片URL", example = "324IEHJDE")
+    private String image;
+
+    /**
+     * 折扣价格
+     */
+    @Schema(description = "折扣价格", example = "2499")
+    private BigDecimal discountPrice;
+
+    /**
+     * 已下单人数
+     */
+    @Schema(description = "已下单人数", example = "100")
+    private Integer orderCount;
+
+
+    @Serial
+    private static final long serialVersionUID = 1L;
+
+}

src/main/java/com/greenorange/promotion/model/vo/course/CourseDetailVO.java

@@ -0,0 +1,75 @@
+package com.greenorange.promotion.model.vo.course;
+
+import com.greenorange.promotion.model.vo.courseChapter.CourseChapterVO;
+import io.swagger.v3.oas.annotations.media.Schema;
+import lombok.Data;
+
+import java.io.Serial;
+import java.io.Serializable;
+import java.math.BigDecimal;
+import java.util.List;
+
+
+@Data
+@Schema(description = "课程详情 视图对象")
+public class CourseDetailVO implements Serializable {
+
+    /**
+     * 课程ID
+     */
+    @Schema(description = "课程ID", example = "1")
+    private Long id;
+
+    /**
+     * 课程名称
+     */
+    @Schema(description = "课程名称", example = "数据分析工程师训练营")
+    private String name;
+
+    /**
+     * 课程类别[考公考研,自媒体,财经]
+     */
+    @Schema(description = "课程类别[考公考研,自媒体,财经]", example = "自媒体")
+    private String type;
+
+    /**
+     * 课程概述（富文本）
+     */
+    @Schema(description = "课程概述（富文本）", example = "富文本")
+    private String detail;
+
+    /**
+     * 推广码说明（富文本）
+     */
+    @Schema(description = "推广码说明（富文本）", example = "富文本")
+    private String promoCodeDesc;
+
+    /**
+     * 课程图片URL
+     */
+    @Schema(description = "课程图片URL", example = "324IEHJDE")
+    private String image;
+
+    /**
+     * 课程原价
+     */
+    @Schema(description = "课程原价", example = "3499")
+    private BigDecimal originPrice;
+
+    /**
+     * 折扣价格
+     */
+    @Schema(description = "折扣价格", example = "2499")
+    private BigDecimal discountPrice;
+
+    /**
+     * 课程章节
+     */
+    @Schema(description = "课程章节")
+    private List<CourseChapterVO> courseChapters;
+
+
+    @Serial
+    private static final long serialVersionUID = 1L;
+
+}

src/main/java/com/greenorange/promotion/service/wechat/WechatGetQrcodeService.java

@@ -1,6 +1,7 @@
 package com.greenorange.promotion.service.wechat;
 
 import com.greenorange.promotion.config.WxAccessToken;
+import com.greenorange.promotion.model.dto.course.CourseQrcodeAddRequest;
 
 import java.io.IOException;
 
@@ -27,5 +28,5 @@ public interface WechatGetQrcodeService {
     /**
      * 微信小程序获取课程码
      */
-    String getWxCourseQrCode(String inviteCode) throws Exception;
+    String getWxCourseQrCode(CourseQrcodeAddRequest courseQrcodeAddRequest) throws Exception;
 }

src/main/java/com/greenorange/promotion/service/wechat/impl/WechatGetQrcodeServiceImpl.java

@@ -12,7 +12,9 @@ import com.freewayso.image.combiner.enums.ZoomMode;
 import com.google.gson.Gson;
 import com.greenorange.promotion.common.ErrorCode;
 import com.greenorange.promotion.config.WxAccessToken;
+import com.greenorange.promotion.constant.SystemConstant;
 import com.greenorange.promotion.exception.BusinessException;
+import com.greenorange.promotion.model.dto.course.CourseQrcodeAddRequest;
 import com.greenorange.promotion.model.entity.FileInfo;
 import com.greenorange.promotion.service.file.FileInfoService;
 import com.greenorange.promotion.service.wechat.WechatGetQrcodeService;
@@ -197,14 +199,14 @@ public class WechatGetQrcodeServiceImpl implements WechatGetQrcodeService {
      */
     @Override
     @Transactional(rollbackFor = Exception.class)
-    public String getWxCourseQrCode(String inviteCode) throws Exception {
+    public String getWxCourseQrCode(CourseQrcodeAddRequest courseQrcodeAddRequest) throws Exception {
         String accessToken = (String) redisTemplate.opsForValue().get(ACCESS_TOKEN_KEY);
         if (accessToken == null) {
             accessToken = this.getAccessToken().getAccess_token();
         }
         Map<String, Object> param = new HashMap<>();
         param.put("page", "pages/loginModule/register/register");
-        param.put("scene", "invitationCode=" + inviteCode);
+        param.put("scene", "invitationCode=" + courseQrcodeAddRequest.getInvitationCode());
         param.put("width", 430);
         param.put("check_path", false);
         param.put("env_version", "develop");
@@ -216,9 +218,9 @@ public class WechatGetQrcodeServiceImpl implements WechatGetQrcodeService {
                 .execute()
                 .bodyBytes();
 
-        String courseTitle = "【早鸟42折】掌握CAD技能实战技能实战技能实战技能实战工作训练营";
+        String courseTitle = courseQrcodeAddRequest.getName();
-        String originalPrice = "2680元";
+        String originalPrice = String.valueOf(courseQrcodeAddRequest.getOriginPrice());
-        String discountPrice = "1680";
+        String discountPrice = String.valueOf(courseQrcodeAddRequest.getDiscountPrice());
         String discountText = "元券后价";
         String FontType = "Microsoft YaHei UI";
         int FontStyle = Font.PLAIN;
@@ -228,7 +230,7 @@ public class WechatGetQrcodeServiceImpl implements WechatGetQrcodeService {
         ImageCombiner combiner = new ImageCombiner(blankUrl, 341, 391, ZoomMode.WidthHeight, OutputFormat.PNG);
 
         // 加载课程图片
-        String courseUrl = "https://img.picui.cn/free/2025/06/22/6856ef5908d4b.jpg";
+        String courseUrl = SystemConstant.FILE_COMMON_PREFIX + courseQrcodeAddRequest.getImage();
         BufferedImage courseImage = ImageIO.read(new URL(courseUrl));
 
 //        Graphics2D graphics = courseImage.createGraphics();
@@ -314,18 +316,6 @@ public class WechatGetQrcodeServiceImpl implements WechatGetQrcodeService {
         return biz + "-" + view;
     }
 
-    public static void main(String[] args) {
-        // 获取本地图形环境
-        GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
-        // 列出所有可用字体家族名
-        String[] families = ge.getAvailableFontFamilyNames();
-
-        // 打印全部字体（可选）
-        System.out.println("=== Available Font Families ===");
-        Arrays.stream(families).forEach(System.out::println);
-    }
-
-