一份只属于我们的QQ年终总结

参考文章
https://blog.csdn.net/weixin_30561425/article/details/99526793
https://blog.csdn.net/qq_42715494/article/details/83582648
https://zhuanlan.zhihu.com/p/183877990

1.导出聊天记录

将红框选中的部分删除，只留下消息

2.将聊天记录导入到数据库中

创建一个maven项目导入依赖包


    
        mysql
        mysql-connector-java
        8.0.23

创建三个java文件

QQChat.java

public class QQChat {
    private String qqDate;
    private String qqTime;
    private String qqUser;
    private String qqContent;
    public String getQqDate() {
        return qqDate;
    }
    public void setQqDate(String qqDate) {
        this.qqDate = qqDate;
    }
    public String getQqTime() {
        return qqTime;
    }
    public void setQqTime(String qqTime) {
        this.qqTime = qqTime;
    }
    public String getQqUser() {
        return qqUser;
    }
    public void setQqUser(String qqUser) {
        this.qqUser = qqUser;
    }
    public String getQqContent() {
        return qqContent;
    }
    public void setQqContent(String qqContent) {
        this.qqContent = qqContent;
    }
}

DBUtil.java

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
public class DBUtil {
    public static Connection getConnection() {
        String username = "root";
        String password = "root";
        //qqchat需要改成你自己的数据库名称，上面的账户密码同样
        String url = "jdbc:mysql://127.0.0.1:3306/qqchat?serverTimezone=GMT%2b8&useUnicode=true&characterEncoding=utf-8&useSSL=false";
        Connection con = null;
        try {
            con = DriverManager.getConnection(url, username, password);
        } catch (SQLException e) {
            e.printStackTrace();
        }
        return con;
    }

    public static void close(Connection con) {
        try {
            if(con!=null) con.close();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }

    public static void close(java.sql.PreparedStatement ps) {
        try {
            if(ps!=null) ps.close();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }

    public static void close(ResultSet rs) {
        try {
            if(rs!=null) rs.close();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}

R2DB.java

import java.io.*;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class R2DB {
    public static void main(String[] args) {
        //处理原始文档，处理后的文档存入999.txt中
        //处理之前先把文档前面的说明性文字去掉
        processTxt();
        //读取原始文档并插入数据库
        readAndInsert();
    }

    private static void readAndInsert() {
        String sql = "";
        try {
            File file = new File("C:\Users\86155\Desktop\999.txt");
            String str = null;
            BufferedReader br = new BufferedReader(new FileReader(file));
            QQChat qqChat = new QQChat();
            List list = new ArrayList();
            while ((str = br.readLine()) != null) {
                String[] strs = str.split(" ");
                qqChat.setQqDate(strs[0]);
                qqChat.setQqTime(strs[1]);
                qqChat.setQqUser(strs[2]);
                
                if (strs.length==4) {
                    qqChat.setQqContent(strs[3]);
                }else{
                    qqChat.setQqContent("未知消息");
                }
                list.add(qqChat);
                qqChat = new QQChat();
            }
            Connection con = null;
            PreparedStatement ps = null;
            con = DBUtil.getConnection();
            try {
                for (QQChat q : list) {
                    sql = "insert into qq_record values('"
                            + q.getQqDate() + "','" + q.getQqTime() + "','"
                            + q.getQqUser() + "','" + q.getQqContent() + "');";
                    ps = con.prepareStatement(sql);
                    ps.executeUpdate();
                }
                System.out.println("插入成功！");
            } catch (SQLException e) {
                //如果遇到出错的插入语句，则输出，查看问题在哪里，直接解决即可
                System.out.println(sql);
                e.printStackTrace();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private static void processTxt() {
        try {
            //修改你自己txt文件的路径
            File file = new File("C:\Users\86155\Desktop\lover.txt");
            String str = null;
            BufferedReader br = new BufferedReader(new FileReader(file));
            PrintWriter out = new PrintWriter(new File("C:\Users\86155\Desktop\999.txt"));
            while ((str = br.readLine()) != null) {
                //这个正则表达式用来匹配2015-02-10 16:02:50 张三
                //如果是导出与一个人的聊天记录就不必用正则，但是我要导出的是群聊，所以要用正则
                Pattern pattern = Pattern
                        .compile("\d{4}\-\d{2}\-\d{2}\s\d{2}\:\d{2}\:\d{2}\s.+");
                Matcher matcher = pattern.matcher(str);
                if (matcher.matches()) {
                    //每次输出时间姓名那一行之前都先输出一个换行
                    out.println();
                    //将有的文本中的两个空格替换成一个
                    out.print(str.replace("  ", " ")+" ");
                } else {
                    
                    out.print(str.replace(" ", "").replace("'", """));
                }
            }
            out.close();
            System.out.println("OK!");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

项目目录如图所示

创建数据库,数据表

字段如下所示

sql语句

DROP TABLE IF EXISTS `qq_record`;
CREATE TABLE `qq_record`  (
  `qqDate` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
  `qqTime` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
  `qqUser` varchar(255) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
  `qqContent` varchar(2550) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL
) ENGINE = InnoDB CHARACTER SET = utf8 COLLATE = utf8_general_ci ROW_FORMAT = Dynamic;
SET FOREIGN_KEY_CHECKS = 1;

在idea中连接数据库

开始运行

结果如图所示

3. 对导入的数据进行处理

查找长度大于50的消息

SELECT * FROM qq_record where length(qqContent)>50;

按时间升序 or 降序

# 时间字段名可以是qqDate，qqTime
SELECt * FROM qq_record ORDER BY 时间字段名 DESC;  #降序
SELECt * FROM qq_record ORDER BY 时间字段名 ASC;   #升序
SELECt * FROM qq_record ORDER BY 时间字段名 ;      #升序

查找某一月份的消息数

SELECt count(*) FROM qq_record
WHERe STR_TO_DATE(qqDate ,'%Y-%m-%d')
BETWEEN STR_TO_DATE(起始时间, '%Y-%m-%d')AND STR_TO_DATE(结束时间, '%Y-%m-%d"')
ORDER BY STR_TO_DATE(qqDate, '%Y-%m-%d');

#示例： 查询一月份的数据
SELECt count(*) FROM qq_record
WHERe STR_TO_DATE(qqDate ,'%Y-%m-%d')
BETWEEN STR_TO_DATE('2021-1-1', '%Y-%m-%d')AND STR_TO_DATE('2021-1-31', '%Y-%m-%d"')
ORDER BY STR_TO_DATE(qqDate, '%Y-%m-%d');

将得到的数据生成柱状图 (下边的是python代码)

import numpy as np
import matplotlib.pyplot as plt
plt.style.use("ggplot")
x = ['1','2','3','4','5','6','7','8','9','10','11','12']
y = [1618 ,1373 ,1140 ,1134 ,1379 ,1426 ,2214 ,1879 ,1430 ,1695 ,1699 ,1873 ]

fig, ax = plt.subplots(figsize=(10, 7))
ax.bar(
    x=x,  # Matplotlib自动将非数值变量转化为x轴坐标
    height=y,  # 柱子高度，y轴坐标
    width=0.6,  # 柱子宽度，默认0.8，两根柱子中心的距离默认为1.0
    align="center",  # 柱子的对齐方式，'center' or 'edge'
    color="blue",  # 柱子颜色
    edgecolor="red",  # 柱子边框的颜色
    linewidth=2.0  # 柱子边框线的大小
)
ax.set_title("hello world", fontsize=15)

# 一个常见的场景是：每根柱子上方添加数值标签
# 步骤：
# 1. 准备要添加的标签和坐标
# 2. 调用ax.annotate()将文本添加到图表
# 3. 调整样式，例如标签大小，颜色和对齐方式
xticks = ax.get_xticks()
for i in range(len(y)):
    xy = (xticks[i], y[i] * 1.03)
    s = str(y[i])
    ax.annotate(
        s=s,  # 要添加的文本
        xy=xy,  # 将文本添加到哪个位置
        fontsize=12,  # 标签大小
        color="grey",  # 标签颜色
        ha="center",  # 水平对齐
        va="baseline"  # 垂直对齐
    )
plt.show()

效果图如下：

查询某一个小时中的消息数

# 示例: 查询四点到五点的消息数
SELECt count(*) FROM qq_record
WHERe STR_TO_DATE(qqTime, '%H:%i:%s')
BETWEEN STR_TO_DATE('4:00:00', '%H:%i:%s') AND STR_TO_DATE('4:59:59', '%H:%i:%s')
ORDER BY STR_TO_DATE(qqTime, '%H:%i:%s');

本篇文章到这里就结束了，你可以利用上述技能制作一份只属于你和你女朋友的独一无二的QQ年终总结，相信你女朋友一定会很开心的。

一份只属于我们的QQ年终总结

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