5.4 课程预览服务端
5.4.1 Api定义
此Api是课程管理前端请求服务端进行课程预览的Api 请求：课程Id
响应：课程预览Url 1、定义响应类型
[AppleScript] 纯文本查看 复制代码 @Data
@ToString
@NoArgsConstructor public class CoursePublishResult extends ResponseResult {
String previewUrl;
public CoursePublishResult(ResultCode resultCode,String previewUrl) {
super(resultCode);
this.previewUrl = previewUrl;
} }
2、接口定义如下
[AppleScript] 纯文本查看 复制代码 @ApiOperation("预览课程")
public CoursePublishResult preview(String id);
5.4.2 创建 Feign Client
在课程管理工程创建CMS服务的Feign Client，通过此Client远程请求cms添加页面。
[AppleScript] 纯文本查看 复制代码
@FeignClient(value = XcServiceList.XC_SERVICE_MANAGE_CMS)
public interface CmsPageClient{
//保存页面
@PostMapping("/cms/page/save")
public CmsPageResult save(@RequestBody CmsPage cmsPage); }
5.4.3 Service
1、配置添加页面参数信息
在application.yml中配置：
[AppleScript] 纯文本查看 复制代码 course‐publish:
siteId: 5b30cba5f58b4411fc6cb1e5
templateId: 5b345a6b94db44269cb2bfec
previewUrl: [url]http://www.xuecheng.com/cms/preview/[/url]
pageWebPath: /course/detail/
pagePhysicalPath: /course/detail/
dataUrlPre: http://localhost:31200/course/courseview/
2、代码如下：
[AppleScript] 纯文本查看 复制代码 @Value("${course‐publish.dataUrlPre}")
private String publish_dataUrlPre;
@Value("${course‐publish.pagePhysicalPath}")
private String publish_page_physicalpath;
@Value("${course‐publish.pageWebPath}")
private String publish_page_webpath;
@Value("${course‐publish.siteId}")
private String publish_siteId;
@Value("${course‐publish.templateId}")
private String publish_templateId;
@Value("${course‐publish.previewUrl}")
private String previewUrl;
//根据id查询课程基本信息
public CourseBase findCourseBaseById(String courseId){
Optional<CourseBase>
baseOptional = courseBaseRepository.findById(courseId);
if(baseOptional.isPresent()){
[AppleScript] 纯文本查看 复制代码 CourseBase courseBase = baseOptional.get();
return courseBase;
}
ExceptionCast.cast(CourseCode.COURSE_GET_NOTEXISTS);
return null;
}
//课程预览
public CoursePublishResult preview(String courseId){
CourseBase one = this.findCourseBaseById(courseId);
//发布课程预览页面
CmsPage cmsPage = new CmsPage();
//站点
cmsPage.setSiteId(publish_siteId);//课程预览站点
//模板
cmsPage.setTemplateId(publish_templateId);
//页面名称
cmsPage.setPageName(courseId+".html");
//页面别名
cmsPage.setPageAliase(one.getName());
//页面访问路径
cmsPage.setPageWebPath(publish_page_webpath);
//页面存储路径
cmsPage.setPagePhysicalPath(publish_page_physicalpath);
//数据url
cmsPage.setDataUrl(publish_dataUrlPre+courseId);
//远程请求cms保存页面信息
CmsPageResult cmsPageResult = cmsPageClient.save(cmsPage);
if(!cmsPageResult.isSuccess()){
return new CoursePublishResult(CommonCode.FAIL,null);
}
//页面id
String pageId = cmsPageResult.getCmsPage().getPageId();
//页面url
String pageUrl = previewUrl+pageId;
return new CoursePublishResult(CommonCode.SUCCESS,pageUrl);
}
5.4.4 Controller
[AppleScript] 纯文本查看 复制代码 @Override
@PostMapping("/preview/{id}") public CoursePublishResult
preview(@PathVariable("id") String id) {
return courseService.preview(id); }
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