添加请求实体，修改请求

src/main/java/cn/celess/blog/service/PartnerSiteService.java

@@ -2,6 +2,7 @@ package cn.celess.blog.service;
 
 import cn.celess.blog.entity.PartnerSite;
 import cn.celess.blog.entity.model.PageData;
+import cn.celess.blog.entity.request.LinkApplyReq;
 import cn.celess.blog.entity.request.LinkReq;
 import org.springframework.stereotype.Service;
 
@@ -53,4 +54,10 @@ public interface PartnerSiteService {
      */
     List<PartnerSite> findAll();
 
+    /**
+     *  申请友链
+     * @param linkApplyReq  linkApplyReq
+     * @return linkApplyReq
+     */
+    PartnerSite apply(LinkApplyReq linkApplyReq);
 }