+关键词count

author-service/src/main/java/com/example/authorservice/blImpl/AuthorDisplay/AuthorDisplayServiceImpl.java

@@ -6,9 +6,7 @@ import com.example.authorservice.vo.*;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
-import java.util.Arrays;
-import java.util.HashMap;
-import java.util.List;
+import java.util.*;
 
 
 @Service
@@ -34,8 +32,38 @@ public class AuthorDisplayServiceImpl implements  AuthorDisplayService{
     public ResponseVO getAuthorTopicsById(String id) {
         try {
             String str=authorDisplayMapper.selectAuthorTopicsById(id);
-            List<String> res=Arrays.asList(str.split("\n|;"));
-            return ResponseVO.buildSuccess(res);
+            List<String> aff=Arrays.asList(str.split("\n|;"));
+            HashMap<String,Integer> res=new HashMap<>();
+            for(int i=0;i<aff.size();i++){
+                Set<String> wordSet=res.keySet();
+                String topic=aff.get(i);
+                //如果已经有这个单词了，
+                if(topic.equals("\r")){
+                    continue;
+                }
+                if(wordSet.contains(topic))
+                {
+                    Integer number=res.get(topic);
+                    number++;
+                    res.put(topic, number);
+                }
+                else {
+                    res.put(topic, 1);
+                }
+            }
+            List<HashMap.Entry<String, Integer>> list = new ArrayList<HashMap.Entry<String, Integer>>(res.entrySet());
+            Collections.sort(list, new Comparator<HashMap.Entry<String, Integer>>() {
+                //降序排序
+                @Override
+                public int compare(HashMap.Entry<String, Integer> o1, HashMap.Entry<String, Integer> o2) {
+                    return o2.getValue().compareTo(o1.getValue());
+                }
+            });
+//            StringBuilder resStr=new StringBuilder("{");
+//            for (HashMap.Entry<String, Integer> mapping : list) {
+//                resStr.append(mapping.getKey()).append(",").append(mapping.getValue()).append(";");
+//            }
+            return ResponseVO.buildSuccess(list);
         } catch (Exception e){
             e.printStackTrace();
             return ResponseVO.buildFailure("失败");