通过话题id与话题name获取话题详情

src/main/java/cn/meteor/beyondclouds/modules/topic/api/TopicApi.java

@@ -83,10 +83,14 @@ public class TopicApi {
 
     @Anonymous
     @ApiOperation("话题详情")
-    @GetMapping("/topic/{topicId}")
-    public Response getTopic(@PathVariable("topicId") String topicId) {
+    @GetMapping("/topic/{topicBy}")
+    public Response getTopic(@PathVariable("topicBy") String topicBy, String by) {
+
+        if (by == null) {
+            by="id";
+        }
         try {
-            Topic topic = topicService.getTopic(topicId);
+            Topic topic = topicService.getTopic(topicBy,by);
             return Response.success(topic);
         } catch (TopicServiceException e) {
             e.printStackTrace();

src/main/java/cn/meteor/beyondclouds/modules/topic/service/ITopicService.java

@@ -46,10 +46,12 @@ public interface ITopicService extends IService<Topic> {
 
     /**
      * 话题详情
-     * @param topicId
+     * @param topicBy
+     * @param by
      * @return
+     * @throws TopicServiceException
      */
-    Topic getTopic(String topicId) throws TopicServiceException;
+    Topic getTopic(String topicBy, String by) throws TopicServiceException;
 
     /**
      * 我关注的话题

src/main/java/cn/meteor/beyondclouds/modules/topic/service/impl/TopicServiceImpl.java

@@ -99,10 +99,24 @@ public class TopicServiceImpl extends ServiceImpl<TopicMapper, Topic> implements
 
 
     @Override
-    public Topic getTopic(String topicId) throws TopicServiceException {
+    public Topic getTopic(String topicBy,String by) throws TopicServiceException {
 
-        //1. 获取话题
-        Topic topic = getById(topicId);
+        //1. 判断by为话题id，还是话题名称
+        Topic topic;
+
+        if ("id".equals(by)) {
+
+            // 通过话题id获取话题
+            topic = getById(topicBy);
+
+        } else {
+
+            // 通过话题name获取话题
+            QueryWrapper<Topic> topicQueryWrapper = new QueryWrapper<>();
+            topicQueryWrapper.eq("topic_name",topicBy);
+            topic = getOne(topicQueryWrapper);
+
+        }
 
         //2. 找不到该话题，抛出业务异常
         if (topic == null) {