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添加了轮播图

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chen-xin-zhi
2025-08-15 08:18:57 +08:00
parent 1ad79f600d
commit 6e31701403
3 changed files with 187 additions and 3 deletions
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7
src/main/java/com/greenorange/promotion/constant/UserConstant.java
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@ -59,7 +59,12 @@ public interface UserConstant {
String STAFF_ROLE = "staff";
/**
* 申请通知
* 员工申请须知
*/
String APPLY_NOTICE_KEY = "applyNotice";
/**
* 课程购买须知
*/
String COURSE_DESC_KEY = "courseDesc";
}

149
src/main/java/com/greenorange/promotion/controller/course/BannerController.java Normal file
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@ -0,0 +1,149 @@
package com.greenorange.promotion.controller.course;
import com.greenorange.promotion.annotation.RequiresPermission;
import com.greenorange.promotion.common.BaseResponse;
import com.greenorange.promotion.common.ErrorCode;
import com.greenorange.promotion.common.ResultUtils;
import com.greenorange.promotion.constant.UserConstant;
import com.greenorange.promotion.exception.BusinessException;
import com.greenorange.promotion.model.dto.CommonStringRequest;
import io.swagger.v3.oas.annotations.Operation;
import io.swagger.v3.oas.annotations.tags.Tag;
import jakarta.annotation.Resource;
import jakarta.validation.Valid;
import lombok.extern.slf4j.Slf4j;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.web.bind.annotation.*;
import java.util.List;
/**
* 轮播图 控制器
*/
@RestController
@RequestMapping("banner")
@Slf4j
@Tag(name = "轮播图模块")
@Transactional
public class BannerController {
@Resource
private RedisTemplate<String, String> redisTemplate;
private static final String BANNER_KEY = "banners:list";
private static final String TOMBSTONE = "\u0000__DEL__\u0000"; // 删除占位符，极低冲突
/**
* web端管理员添加轮播图
* @param commonStringRequest 图片view值
* @return 是否添加成功
*/
@PostMapping("add")
@Operation(summary = "web端管理员添加轮播图", description = "参数：图片view值，权限：管理员，方法名：addBanner")
@RequiresPermission(mustRole = UserConstant.ADMIN_ROLE)
public BaseResponse<Boolean> addBanner(@Valid @RequestBody CommonStringRequest commonStringRequest) {
String view = commonStringRequest.getTemplateString();
redisTemplate.opsForList().rightPush(BANNER_KEY, view);
return ResultUtils.success(true);
}
/**
* 删除轮播图（根据索引）
* @param index 索引
* @return 是否添加成功
*/
@PostMapping("del")
@Operation(summary = "删除轮播图（根据索引）", description = "参数：图片view值，权限：管理员，方法名：delBanner")
@RequiresPermission(mustRole = UserConstant.ADMIN_ROLE)
public BaseResponse<Boolean> delBanner(@RequestParam long index) {
long len = getLenOrThrow();
long idx = normalizeIndex(index, len);
try {
// 先把该位置设置为占位符
redisTemplate.opsForList().set(BANNER_KEY, idx, TOMBSTONE);
// 再删除第一个占位符
Long removed = redisTemplate.opsForList().remove(BANNER_KEY, 1, TOMBSTONE);
boolean ok = removed != null && removed > 0;
log.info("按索引删除轮播图：index={}, removed={}", idx, ok);
return ResultUtils.success(ok);
} catch (Exception e) {
throw new BusinessException(ErrorCode.PARAMS_ERROR, "索引越界或参数错误");
}
}
/**
* 修改轮播图（根据索引）
* @param index 索引
* @param newView 新的图片view值
* @return 是否添加成功
*/
@PostMapping("modify")
@Operation(summary = "修改轮播图（根据索引）", description = "参数：图片view值，权限：管理员，方法名：delBanner")
@RequiresPermission(mustRole = UserConstant.ADMIN_ROLE)
public BaseResponse<Boolean> modifyBanner(@RequestParam long index, @RequestParam String newView) {
long len = getLenOrThrow();
long idx = normalizeIndex(index, len); // 支持 -1
try {
redisTemplate.opsForList().set(BANNER_KEY, idx, newView);
log.info("更新轮播图：index={} -> {}", idx, newView);
return ResultUtils.success(true);
} catch (Exception e) {
throw new BusinessException(ErrorCode.PARAMS_ERROR, "索引越界或参数错误");
}
}
/**
* web端获取所有轮播图（按添加顺序）
*/
@GetMapping("web/list")
@Operation(summary = "web端获取所有轮播图（按添加顺序）", description = "按添加顺序返回")
@RequiresPermission(mustRole = UserConstant.ADMIN_ROLE)
public BaseResponse<List<String>> webListBanners() {
List<String> banners = redisTemplate.opsForList().range(BANNER_KEY, 0, -1);
return ResultUtils.success(banners);
}
/**
* 小程序端获取所有轮播图（按添加顺序）
*/
@GetMapping("mini/list")
@Operation(summary = "小程序端获取所有轮播图（按添加顺序）", description = "按添加顺序返回")
@RequiresPermission(mustRole = UserConstant.DEFAULT_ROLE)
public BaseResponse<List<String>> miniListBanners() {
List<String> banners = redisTemplate.opsForList().range(BANNER_KEY, 0, -1);
return ResultUtils.success(banners);
}
/* ===== 工具方法 ===== */
/** 获取列表长度，不存在或为空时抛错 */
private long getLenOrThrow() {
Long len = redisTemplate.opsForList().size(BANNER_KEY);
if (len == null || len == 0) {
throw new BusinessException(ErrorCode.NOT_FOUND_ERROR, "轮播图列表为空");
}
return len;
}
/** 归一化索引（支持负索引），并做范围校验 */
private long normalizeIndex(long index, long len) {
long idx = index < 0 ? len + index : index; // -1 -> len-1
if (idx < 0 || idx >= len) {
throw new BusinessException(ErrorCode.PARAMS_ERROR, "索引越界：" + index);
}
return idx;
}
}

34
src/main/java/com/greenorange/promotion/controller/userInfo/UserInfoController.java
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@ -121,7 +121,7 @@ public class UserInfoController {
* @return 是否修改成功
*/
@PostMapping("modify/applyNotice")
@Operation(summary = "web端修改员工申请须知", description = "参数：昵称，权限：管理员（boss, admin)，方法名：modifyApplyNotice")
@Operation(summary = "web端修改员工申请须知", description = "参数：修改内容，权限：管理员（boss, admin)，方法名：modifyApplyNotice")
@RequiresPermission(mustRole = UserConstant.ADMIN_ROLE)
public BaseResponse<Boolean> modifyApplyNotice(@Valid @RequestBody CommonStringRequest commonStringRequest) {
String applyNotice = commonStringRequest.getTemplateString();
@ -136,13 +136,43 @@ public class UserInfoController {
*/
@PostMapping("query/applyNotice")
@Operation(summary = "小程序端查询员工申请须知", description = "参数：无，权限：管理员（boss, admin)，方法名：queryApplyNotice")
@RequiresPermission(mustRole = UserConstant.ADMIN_ROLE)
@RequiresPermission(mustRole = UserConstant.DEFAULT_ROLE)
public BaseResponse<String> queryApplyNotice() {
String applyNotice = redisTemplate.opsForValue().get(UserConstant.APPLY_NOTICE_KEY);
return ResultUtils.success(applyNotice);
}
/**
* web端修改课程购买须知
* @param commonStringRequest 修改内容
* @return 是否修改成功
*/
@PostMapping("modify/courseDesc")
@Operation(summary = "web端修改课程购买须知", description = "参数：修改内容，权限：管理员（boss, admin)，方法名：modifyCourseDesc")
@RequiresPermission(mustRole = UserConstant.ADMIN_ROLE)
public BaseResponse<Boolean> modifyCourseDesc(@Valid @RequestBody CommonStringRequest commonStringRequest) {
String courseDesc = commonStringRequest.getTemplateString();
redisTemplate.opsForValue().set(UserConstant.COURSE_DESC_KEY, courseDesc);
return ResultUtils.success(true);
}
/**
* 小程序端查询课程购买须知
* @return 是否修改成功
*/
@PostMapping("query/courseDesc")
@Operation(summary = "小程序端查询课程购买须知", description = "参数：无，权限：管理员（boss, admin)，方法名：queryApplyNotice")
@RequiresPermission(mustRole = UserConstant.DEFAULT_ROLE)
public BaseResponse<String> queryCourseDesc() {
String courseDesc = redisTemplate.opsForValue().get(UserConstant.COURSE_DESC_KEY);
return ResultUtils.success(courseDesc);
}
/**
* 小程序端用户修改用户昵称
* @param commonStringRequest 昵称