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Merge remote-tracking branch 'origin/master'

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This commit is contained in:
landaiqing 2023-12-25 02:02:42 +08:00
commit ee639e7f4a
5 changed files with 158 additions and 9 deletions
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5
src/main/java/com/lovenav/dao/CommentDao.java
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@ -1,12 +1,14 @@
package com.lovenav.dao;
import com.lovenav.entity.Comment;
import com.lovenav.entity.CommentNode;
import org.apache.ibatis.annotations.Mapper;
import org.mybatis.spring.annotation.MapperScan;
import org.springframework.stereotype.Repository;
import java.util.List;
@Repository
@Mapper
public interface CommentDao {
@ -25,4 +27,7 @@ public interface CommentDao {
List<Comment> selectAllComment();
List<Comment> selectByAllReply(int id);
List<CommentNode> queryFirstCommentList(int urlid);
List<CommentNode> querySecondCommentList(int UrlId);
}

44
src/main/java/com/lovenav/entity/CommentNode.java Normal file
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@ -0,0 +1,44 @@
package com.lovenav.entity;
import lombok.Data;
import lombok.EqualsAndHashCode;
import lombok.NoArgsConstructor;
import org.springframework.beans.factory.annotation.Autowired;
import java.util.ArrayList;
import java.util.List;
/**
* 功能描述：封装博客评论的BO <br>
* 采用链表结构实现
**/
@EqualsAndHashCode(callSuper = true)
@Data
@NoArgsConstructor
public class CommentNode extends Comment {
/**
* 评论的用户信息
*/
private User user;
/**
* 下一条回复
*/
private List<CommentNode> nextNodes = new ArrayList<>();
public CommentNode ( CommentNode commentNode ) {
super();
setId(commentNode.getId());
setUrlId(commentNode.getUrlId());
setUserId(commentNode.getUserId());
setContent(commentNode.getContent());
setRootCommentId(commentNode.getRootCommentId());
setCommentStatus(commentNode.getCommentStatus());
setCommentTime(commentNode.getCommentTime());
setUpdateTime(commentNode.getUpdateTime());
setRating(commentNode.getRating());
setLikeCount(commentNode.getLikeCount());
this.user = commentNode.getUser();
}
}

67
src/main/java/com/lovenav/service/serviceImpl/CommentServiceImpl.java
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@ -5,6 +5,8 @@ import com.alibaba.fastjson2.JSONObject;
import com.lovenav.dao.CommentDao;
import com.lovenav.dao.UserDao;
import com.lovenav.entity.Comment;
import com.lovenav.entity.CommentNode;
import com.lovenav.entity.User;
import com.lovenav.service.CommentService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
@ -64,10 +66,16 @@ public class CommentServiceImpl implements CommentService {
return JSON.toJSONString(hashMap);
}
// 显示评论
// 显示一级评论和用户信息
public String View_comment(){
List<Comment> list = commentDao.selectAllComment();
return JSON.toJSONString(list);
List<Comment> list_comment = commentDao.selectAllComment();
HashMap<Comment, User> result = new HashMap<>();
for(int i=0;i<list_comment.size();++i){
int user_id = list_comment.get(i).getUserId();
User user = userDao.selectByPrimaryKey(user_id);
result.put(list_comment.get(i),user );
}
return JSON.toJSONString(result);
}
// 显示回复
@ -75,4 +83,57 @@ public class CommentServiceImpl implements CommentService {
List<Comment> list = commentDao.selectByAllReply(id);
return JSON.toJSONString(list);
}
private boolean addNode (List<CommentNode> firstList, CommentNode commentNode ) {
//循环添加
for (CommentNode node : firstList) {
//判断留言的上一段是否是这条留言（判断这条回复，是否是当前评论的回复）
if (node.getId().equals(commentNode.getRootCommentId())) {
//是，添加，返回true
node.getNextNodes().add(commentNode);
return true;
} else {
//否则递归继续判断
if (node.getNextNodes().size() != 0) {
if (addNode(node.getNextNodes(), commentNode)) {
return true;
}
}
}
}
return false;
}
/**
* 功能描述：将查出来的lastId不为null的回复都添加到第一层Node集合中
*
* @param firstList 第一层评论集合（链表）
* @param thenList 非第一层评论集合（链表）
* @return 所有评论集合（非第一层评论集合对应添加到第一层评论集合，返回）
*/
private List<CommentNode> addAllNode ( List<CommentNode> firstList, List<CommentNode> thenList ) {
while (thenList.size() != 0) {
int size = thenList.size();
for (int i = 0; i < size; i++) {
if (addNode(firstList, new CommentNode(thenList.get(i)))) {
thenList.remove(i);
i--;
size--;
}
}
}
return firstList;
}
public List<CommentNode> queryObserveByBlogId ( Integer UrlId ) {
//所有未处理的一级评论集合
List<CommentNode> firstCommentList = commentDao.queryFirstCommentList(UrlId);
//所有未处理的二级评论集合
List<CommentNode> secondCommentList = commentDao.querySecondCommentList(UrlId);
//将二级评论用链表的方式添加到一级评论
List<CommentNode> list = addAllNode(firstCommentList, secondCommentList);
return list;
}
}

16
src/main/java/com/lovenav/service/serviceImpl/QRCServiceImpl.java
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@ -32,7 +32,7 @@ public class QRCServiceImpl implements QRCService{
List<CollectIconList> list = collectIconListDao.selectByUrlid(collect.getUrl_id());
if(list.size()==0){
if(urlList != null){
if(urlList != null && collect.getIcon_url()!=null){
// 将icon下载到本地并存储本地路径
String icon_url = QRCodeUtil.downloadPicture(collect.getIcon_url());
collect.setIcon_url(icon_url);
@ -45,11 +45,15 @@ public class QRCServiceImpl implements QRCService{
collectIconListDao.insert(collect);
String base64 = QRCodeUtil.ImageToBase64(url_wait);
return JSON.toJSONString(base64);
}else{
HashMap<String,Object> result = new HashMap<>();
result.put("code",500);
result.put("msg", "找不到对应网址");
return JSON.toJSONString(result);
}else if(urlList != null && collect.getIcon_url()==null){
// 获取网址url
String url = urlList.getUrl();
String url_wait = QRCodeUtil.encode(url, logoPath, destPath, true);
// 为collect设置二维码本地路径
collect.setQr_url(url_wait);
collectIconListDao.insert(collect);
String base64 = QRCodeUtil.ImageToBase64(url_wait);
return JSON.toJSONString(base64);
}
}else{
String url_wait = list.get(0).getQr_url();

35
src/main/resources/mybatis/CommentDao.xml
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@ -159,4 +159,39 @@
from ln_comment
where root_comment_id = #{rootCommentId,jdbcType=INTEGER} and comment_status = 0
</select>
<select id="queryFirstCommentList" parameterType="java.lang.Integer" resultMap="ResultMap">
SELECT * FROM ln_comment o LEFT JOIN ln_user u
ON o.user_id=u.id
WHERE o.url_id=#{urlId,jdbcType=INTEGER} AND o.root_comment_id is null
</select>
<resultMap id="ResultMap" type="com.lovenav.entity.Comment">
<id column="id" jdbcType="INTEGER" property="id" />
<result column="url_id" jdbcType="INTEGER" property="urlId" />
<result column="user_id" jdbcType="INTEGER" property="userId" />
<result column="content" jdbcType="VARCHAR" property="content" />
<result column="root_comment_id" jdbcType="INTEGER" property="rootCommentId" />
<result column="like_count" jdbcType="BIGINT" property="likeCount" />
<result column="comment_time" jdbcType="TIMESTAMP" property="commentTime" />
<result column="comment_status" jdbcType="TINYINT" property="commentStatus" />
<result column="update_time" jdbcType="TIMESTAMP" property="updateTime" />
<result column="rating" jdbcType="INTEGER" property="rating" />
</resultMap>
<select id="querySecondCommentList" parameterType="java.lang.Integer" resultMap="ResultMap">
SELECT * FROM ln_comment o LEFT JOIN ln_user u
ON o.user_id=u.id
WHERE o.url_id=#{urlId,jdbcType=INTEGER} AND o.root_comment_id is not null
</select>
</mapper>