课堂测试试卷—数据同步练习

• 数据结构分析：

（1）京津冀三省的2015年度的科技成果数据原始表，为Access数据库，；

（2）要求将三省的科技成果数据汇总到同一表中（要求结果表为MySql数据表）；

（3）三个原始数据表结构不一致，要求结果表中包括所有的字段，表达意思相同或相似的字段要进行合并，不允许丢失字段（若只有本表独有字段，在结果表中其他两表数据在该字段填入空值）。

• 数据同步练习：要求采编程实现三个原始表数据同步功能，将三个表的数据同步到一个结果表中。
• 数据清洗练习：

（1）重复记录清洗，分析结果表中是否存在重复的数据记录，主要是地域和成果名称相同即判定为重复记录，保留一条记录，并补充其他重复记录中独有的数据字段内容，再删除其余记录。

（2）在结果表中追加年份和地域两个标准维度字段，如果原始表中存在该字段则直接转化成维度字段，若不存在则根据单位名称确定地域字段内容，天津科技成果表中不存在年度字段，则直接将年度维度字段确定为2015年。

• 数据分析：

根据提供的已知字段名称，自动将科技成果分类，并且分析京津冀三地的科技优势。

• 将最终的MySQL数据表导入，放入源程序，将文件夹命名为为班级学号姓名提交。

 

数据读取，合并并保存到mysql中

import com.healthmarketscience.jackcess.*;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileWriter;
import java.nio.charset.StandardCharsets;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.util.*;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.util.stream.Collectors;

import lombok.SneakyThrows;
import org.json.JSONArray;
import org.json.JSONObject;
import org.xm.Similarity;



public class FileRead {
    private static Connection conn;
    private static List<List<String>> columnList=new ArrayList<>();

    private static Map<String,String> columnMap=new HashMap<>();


    @SneakyThrows
    public static void main(String[] args) {
        String mysqlUrl = "jdbc:mysql://localhost:3307/sparktest";
        String mysqlUsername = "root";
        String mysqlPassword = "123456";
        conn = DriverManager.getConnection(mysqlUrl, mysqlUsername, mysqlPassword);
        read_data("src/main/resources/data/1.1京津冀科技成果（技术）.accdb");
        read_data("src/main/resources/data/1.2河北科技成果2015年第1-2-3期（技术）.mdb");
        read_data("src/main/resources/data/1.3天津科技成果（技术）.mdb");
        read_data("src/main/resources/data/1.4北京推介项目成果.accdb");
//        System.out.println(compute_columns());
        createConTable();
        insertTotalData("src/main/resources/data/1.1京津冀科技成果（技术）.accdb");
        insertTotalData("src/main/resources/data/1.2河北科技成果2015年第1-2-3期（技术）.mdb");
        insertTotalData("src/main/resources/data/1.3天津科技成果（技术）.mdb");
        insertTotalData("src/main/resources/data/1.4北京推介项目成果.accdb");
        conn.close();
    }

    private static String check(String s){
        switch (s) {
            case "评价单位名称":
                return "鉴定部门";
            case "主要人员":
                return "完成人";
            case "单位名称":
                return "完成单位";
            case "行业":
                return "应用行业名称";
            case "年度":
                return "成果分布年份";
            case "序号":
                return "ID";
            case "单位":
                return "完成单位";
            case "负责人":
                return "完成人";
            case "所属技术领域":
                return "应用行业名称";
            case "项目简介":
                return "成果简介";
            case "领域":
                return "应用行业名称";
            case "成果产出単位":
                return "完成单位";
            case "技术领域":
                return "应用行业名称";
            case "成果产出单位":
                return "完成单位";
            case "取得的知识产权":
                return "知识产权情况";
            case "名称":
                return "成果名称";
            case "知识产权":
                return "知识产权情况";
            default:
                return s;
        }
    }
    private static List<String> compute_columns(){
        List<String> columns=new ArrayList<>();
        List<String> temp=columnList.get(0);
        for (String i:temp){
            columnMap.put(i,i);
            columns.add(i);
        }
        for(int i=1;i<columnList.size();i++){
            temp=columnList.get(i);
            for (String j:temp){
                String s=check(j);
                if(s.equals(j)&&!columns.contains(s)){
                    columns.add(j);
                    columnMap.put(j,j);
                }
                else{
                    columnMap.put(j,s);
                }
            }
        }
        return columns;

    }
    @SneakyThrows
    private static void createConTable(){
        List<String> columns=compute_columns();
        StringBuilder createTableSql = new StringBuilder("CREATE TABLE IF NOT EXISTS TOTAL_DATA" );
        createTableSql.append(" (");
        for (String column : columns) {
            createTableSql.append("`" + column + "`").append(" TEXT, ");
        }
        createTableSql.delete(createTableSql.length() - 2, createTableSql.length());
        createTableSql.append(")");
        PreparedStatement createTableStmt = conn.prepareStatement(createTableSql.toString());
        createTableStmt.executeUpdate();

    }

    @SneakyThrows
    private static void insertTotalData(String filepath) {
        Database db = DatabaseBuilder.open(new File(filepath));
        for (String tableName : db.getTableNames()) {
            Table table = db.getTable(tableName);
            List<Column> columns = (List<Column>) table.getColumns();
            StringBuilder insertDataSql = new StringBuilder("INSERT INTO ");
            insertDataSql.append("TOTAL_DATA").append(" (");
            for (Column column : columns) {
                String v = columnMap.get(column.getName().replace(":", ""));
                insertDataSql.append("`" + v + "`").append(",");
            }
            insertDataSql.deleteCharAt(insertDataSql.length() - 1);
            insertDataSql.append(") VALUES (");

            for (int i = 0; i < columns.size(); i++) {
                insertDataSql.append("?,");
            }
            insertDataSql.deleteCharAt(insertDataSql.length() - 1);
            insertDataSql.append(")");
            PreparedStatement insertDataStmt = conn.prepareStatement(insertDataSql.toString());
            for (Row row : table) {
                for (int i = 0; i < columns.size(); i++) {

                    insertDataStmt.setObject(i + 1, row.get(columns.get(i).getName()).toString().replace("\\\\",""));
                }
                insertDataStmt.executeUpdate();
            }
        }
        db.close();
    }

    @SneakyThrows
    private static void read_data(String filepath){
        Database db = DatabaseBuilder.open(new File(filepath));
        for (String tableName : db.getTableNames()) {
            Table table = db.getTable(tableName);
            List<Column> columns = (List<Column>) table.getColumns();
            List<String> temp=new ArrayList<>();
            for (Column column : columns) {
                String v = column.getName().replace(":", "");
                System.out.printf(v+"\t");
                temp.add(v);
            }
            columnList.add(temp);
            System.out.println("\n");
        }
//        saveTxT(filepath);
//        createTable(filepath);
//        insertData(filepath);
    }

    @SneakyThrows
    private static void saveTxT(String filepath){
        Database db = DatabaseBuilder.open(new File(filepath));
        for (String tableName : db.getTableNames()) {
            Table table = db.getTable(tableName);
            String fileName = tableName.replace("/","_");
            File outputFile = new File("src/main/resources/data/" + fileName + ".txt");
            FileWriter fw = new FileWriter(outputFile);
            BufferedWriter bw = new BufferedWriter(fw);
            for (Row row : table) {
                String rowData = row.toString();
                bw.write(rowData);
                bw.newLine();
            }
            bw.close();
            fw.close();
        }
        db.close();
    }
    @SneakyThrows
    private static void createTable(String filepath){
        Database db = DatabaseBuilder.open(new File(filepath));
        for (String tableName : db.getTableNames()) {
            Table table = db.getTable(tableName);
            String fileName = tableName.replace("/","_");
            List<Column> columns = (List<Column>) table.getColumns();
            StringBuilder createTableSql = new StringBuilder("CREATE TABLE IF NOT EXISTS " + fileName);
            createTableSql.append(" (");
            List<String> temp=new ArrayList<>();
            for (Column column : columns) {
                String v = column.getName().replace(":", "");
                temp.add(v);
                createTableSql.append("`" + v + "`").append(" TEXT, ");
            }
            columnList.add(temp);
            createTableSql.delete(createTableSql.length() - 2, createTableSql.length());
            createTableSql.append(")");
            PreparedStatement createTableStmt = conn.prepareStatement(createTableSql.toString());
            System.out.println(createTableSql.toString());
            createTableStmt.executeUpdate();
        }
        db.close();
    }
    @SneakyThrows
    private static void insertData(String filepath) {
        Database db = DatabaseBuilder.open(new File(filepath));
        for (String tableName : db.getTableNames()) {
            Table table = db.getTable(tableName);
            String fileName = tableName.replace("/","_");
            List<Column> columns = (List<Column>) table.getColumns();
            StringBuilder insertDataSql = new StringBuilder("INSERT INTO ");
            insertDataSql.append(fileName).append(" (");
            for (Column column : columns) {
                String v = column.getName().replace(":", "");
                insertDataSql.append("`" + v + "`").append(",");
            }
            insertDataSql.deleteCharAt(insertDataSql.length() - 1);
            insertDataSql.append(") VALUES (");

            for (int i = 0; i < columns.size(); i++) {
                insertDataSql.append("?,");
            }
            insertDataSql.deleteCharAt(insertDataSql.length() - 1);
            insertDataSql.append(")");
            PreparedStatement insertDataStmt = conn.prepareStatement(insertDataSql.toString());
            for (Row row : table) {
                for (int i = 0; i < columns.size(); i++) {

                    insertDataStmt.setObject(i + 1, row.get(columns.get(i).getName()));
                }
                insertDataStmt.executeUpdate();
            }
        }
        db.close();
    }
}

将合并的表进行数据清洗导出并分析

import org.apache.log4j.{Level, Logger}
import org.apache.spark.sql.catalyst.dsl.expressions.{DslAttr, StringToAttributeConversionHelper}
import org.apache.spark.{SparkConf, SparkContext}
import org.apache.spark.sql.{Column, DataFrame, Row, SparkSession}
import org.apache.spark.sql.functions._
import org.apache.spark.sql.types.StringType

object DataClean {
  def inferArea(area: Column): Column = {
    when(area.contains("天津"), "天津")
      .when(area.contains("北京"), "北京")
      .otherwise("河北")
  }


  def main(args: Array[String]): Unit = {
    Logger.getLogger("org").setLevel(Level.ERROR)
    val sc = SparkSession.builder
      .appName("DataClean")
      .master("local[*]")
      .getOrCreate()

    val mysqlHost = "localhost"
    val mysqlPort = "3307"
    val mysqlDatabase = "sparktest"
    val mysqlTable = "total_data"
    val mysqlUser = "root"
    val mysqlPassword = "123456"

    val jdbcUrl = s"jdbc:mysql://$mysqlHost:$mysqlPort/$mysqlDatabase?useSSL=false"
    var df: DataFrame = sc.read
      .format("jdbc")
      .option("url", jdbcUrl)
      .option("dbtable", mysqlTable)
      .option("user", mysqlUser)
      .option("password", mysqlPassword)
      .load()


    val stringColumns = df.schema.fields.filter(_.dataType == StringType).map(_.name)


    df = stringColumns.foldLeft(df)((accDF, colName) =>
      accDF.withColumn(colName, regexp_replace(col(colName), "\"", ""))
    )

    val columns=df.columns

    df =df.withColumn("年份", when(df("成果分布年份") !== null, df("成果分布年份")).otherwise(2015))
    df =df.withColumn("地域", when(df("省市") !== null, df("省市")).otherwise(inferArea(df("完成单位"))))
    df=df.dropDuplicates(Seq("地域", "成果名称")).repartition(1)
    df.write
      .format("csv")
      .option("header", "true")
      .option("encoding", "GBK")
      .save("src/main/resources/data/out")
    sc.stop()

  }


}

import pandas as pd
import matplotlib.pyplot as plt
import pymysql
from matplotlib import rcParams

if __name__ == '__main__':
    mydb = pymysql.connect(
        host="localhost",
        port=3307,
        user="root",
        password="123456",
        database="sparktest"
    )

    query="SELECT * FROM res_data"
    df = pd.read_sql(query, mydb)
    grouped = df.groupby('地域').size()
    rcParams['font.family'] = 'SimHei'

    # 绘制饼状图
    plt.figure(figsize=(10, 7))
    grouped.plot(kind='pie', autopct='%1.1f%%', startangle=140)
    plt.title('地域分布饼状图')
    plt.ylabel('')
    plt.axis('equal')  # 使饼状图保持圆形
    plt.show()

    grouped = df.groupby('应用行业名称').size()
    grouped = grouped[grouped > 50]

    # 绘制直方图
    plt.figure(figsize=(12, 6))
    grouped.plot(kind='bar', color='skyblue')
    plt.title('数量大于50的应用行业分布直方图')
    plt.xlabel('应用行业')
    plt.ylabel('数量')
    plt.xticks(rotation=45, ha='right')  # 设置 x 轴标签旋转角度
    plt.tight_layout()  # 调整布局以防止标签重叠
    plt.show()


    mydb.close()