抓取历史天气

工具类

package com.example.demo.util;

import org.apache.poi.hssf.usermodel.*;
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.text.DecimalFormat;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

public class ReadExcel {

    public static List<List<String>> readExcel(String path) throws IOException {
        if (path.endsWith(".xlsx")) {
            return readXlsx(path);
        } else if (path.endsWith(".xls")) {
            return readXlsx(path);
        } else {
            return null;
        }
    }

    /**
     * Read the Excel 2010
     */
    public static List<List<String>> readXlsx(String path) throws IOException {
        InputStream is = new FileInputStream(path);
        XSSFWorkbook xssfWorkbook = new XSSFWorkbook(is);

        List<List<String>> list = new ArrayList<List<String>>();
        // Read the Sheet
        int numSheets = xssfWorkbook.getNumberOfSheets();// 获取sheet页数
        for (int numSheet = 0; numSheet < 1; numSheet++) {
            XSSFSheet xssfSheet = xssfWorkbook.getSheetAt(numSheet);
            if (xssfSheet == null) {
                continue;
            }
            // Read the Row
            int rowNums = xssfSheet.getLastRowNum();
            for (int rowNum = 0; rowNum <= rowNums; rowNum++) {
                List<String> l = new ArrayList<String>();
                // 获取对应的行数据
                XSSFRow xssfRow = xssfSheet.getRow(rowNum);
                if (xssfRow != null) {
                    // 获取列数
                    int columnNum = xssfRow.getLastCellNum();
                    for (int cloNum = 0; cloNum < columnNum; cloNum++) {
                        l.add(getValue(xssfRow.getCell(cloNum)));
                    }
                    list.add(l);
                }
            }
        }
        return list;
    }

    /**
     * Read the Excel 2003
     */
    public void readXls(String path) throws IOException {
        InputStream is = new FileInputStream(path);
        HSSFWorkbook hssfWorkbook = new HSSFWorkbook(is);

        List<List<String>> list = new ArrayList<List<String>>();
        // Read the Sheet
        int numSheets = hssfWorkbook.getNumberOfSheets();// 获取sheet页数
        for (int numSheet = 0; numSheet < 1; numSheet++) {
            HSSFSheet hssfSheet = hssfWorkbook.getSheetAt(numSheet);
            if (hssfSheet == null) {
                continue;
            }
            // Read the Row
            int rowNums = hssfSheet.getLastRowNum();
            for (int rowNum = 0; rowNum <= rowNums; rowNum++) {
                // 获取对应的行数据
                HSSFRow hssfRow = hssfSheet.getRow(rowNum);
                List<String> l = new ArrayList<String>();
                if (hssfRow != null) {
                    // 获取列数
                    int columnNum = hssfRow.getLastCellNum();
                    for (int cloNum = 0; cloNum < columnNum; cloNum++) {
                        l.add(getValue(hssfRow.getCell(cloNum)));
                    }
                    list.add(l);
                }
            }
        }
    }

    /**
     * 取值2010excel
     *
     * @param cell
     * @return
     */
    private static String getValue(XSSFCell cell) {
        if (cell == null) {
            return "";
        }

        String value = "";

        switch (cell.getCellType()) {
            case HSSFCell.CELL_TYPE_STRING:
                value = cell.getStringCellValue();
                break;
            case HSSFCell.CELL_TYPE_NUMERIC:
                if (HSSFDateUtil.isCellDateFormatted(cell)) {
                    Date date = cell.getDateCellValue();
                    if (date != null) {
                        value = new SimpleDateFormat("yyyy-MM-dd").format(date);
                    } else {
                        value = "";
                    }
                } else {
                    value = new DecimalFormat("0").format(cell.getNumericCellValue());
                }
                break;
            case HSSFCell.CELL_TYPE_FORMULA:
                // 导入时如果为公式生成的数据则无值
                if (!cell.getStringCellValue().equals("")) {
                    value = cell.getStringCellValue();
                } else {
                    value = cell.getNumericCellValue() + "";
                }
                break;
            case HSSFCell.CELL_TYPE_BLANK:
                break;
            case HSSFCell.CELL_TYPE_ERROR:
                break;
            case HSSFCell.CELL_TYPE_BOOLEAN:
                value = (cell.getBooleanCellValue() == true ? "Y" : "N");
                break;
            default:
                value = "";
        }
        return value.trim();
    }

    /**
     * 取值2003excel
     *
     * @param cell
     * @return
     */
    private String getValue(HSSFCell cell) {
        if (cell == null) {
            return "";
        }

        String value = "";

        switch (cell.getCellType()) {
            case HSSFCell.CELL_TYPE_STRING:
                value = cell.getStringCellValue();
                break;
            case HSSFCell.CELL_TYPE_NUMERIC:
                if (HSSFDateUtil.isCellDateFormatted(cell)) {
                    Date date = cell.getDateCellValue();
                    if (date != null) {
                        value = new SimpleDateFormat("yyyy-MM-dd").format(date);
                    } else {
                        value = "";
                    }
                } else {
                    value = new DecimalFormat("0").format(cell.getNumericCellValue());
                }
                break;
            case HSSFCell.CELL_TYPE_FORMULA:
                // 导入时如果为公式生成的数据则无值
                if (!cell.getStringCellValue().equals("")) {
                    value = cell.getStringCellValue();
                } else {
                    value = cell.getNumericCellValue() + "";
                }
                break;
            case HSSFCell.CELL_TYPE_BLANK:
                break;
            case HSSFCell.CELL_TYPE_ERROR:
                break;
            case HSSFCell.CELL_TYPE_BOOLEAN:
                value = (cell.getBooleanCellValue() == true ? "Y" : "N");
                break;
            default:
                value = "";
        }
        return value.trim();
    }
}

package com.example.demo.util;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.URL;
import java.net.URLConnection;
import java.util.List;
import java.util.Map;

public class HttpRequest {

    /**
     * 向指定URL发送GET方法的请求
     *
     * @param url   发送请求的URL
     * @param param 请求参数，请求参数应该是 name1=value1&name2=value2 的形式。
     * @return URL 所代表远程资源的响应结果
     */
    public static String sendGet(String url, String param) {

        String result = "";
        BufferedReader in = null;
        try {
            String urlNameString = url + "?" + param;
            URL realUrl = new URL(urlNameString);
            // 打开和URL之间的连接
            URLConnection connection = realUrl.openConnection();
            // 设置通用的请求属性
            connection.setRequestProperty("accept", "*/*");
            connection.setRequestProperty("connection", "Keep-Alive");
            connection.setRequestProperty("Charsert", "GBK"); //设置请求编码
            connection.setRequestProperty("user-agent",
                    "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
            // 建立实际的连接
            connection.connect();
            // 获取所有响应头字段
            Map<String, List<String>> map = connection.getHeaderFields();
            // 遍历所有的响应头字段
            for (String key : map.keySet()) {
                System.out.println(key + "--->" + map.get(key));
            }
            // 定义 BufferedReader输入流来读取URL的响应
            in = new BufferedReader(new InputStreamReader(
                    connection.getInputStream(), "GBK"));
            String line;
            while ((line = in.readLine()) != null) {
                result += line;
            }
        } catch (Exception e) {
            System.out.println("get请求异常, 网站[" + url + "]");
//            System.out.println("发送GET请求出现异常！" + e);
//            e.printStackTrace();
        }
        // 使用finally块来关闭输入流
        finally {
            try {
                if (in != null) {
                    in.close();
                }
            } catch (Exception e2) {
                e2.printStackTrace();
            }
        }
        return result;
    }

    /**
     * 向指定 URL 发送POST方法的请求
     *
     * @param url   发送请求的 URL
     * @param param 请求参数，请求参数应该是 name1=value1&name2=value2 的形式。
     * @return 所代表远程资源的响应结果
     */
    public static String sendPost(String url, String param) {
        PrintWriter out = null;
        BufferedReader in = null;
        String result = "";
        try {
            URL realUrl = new URL(url);
            // 打开和URL之间的连接
            URLConnection conn = realUrl.openConnection();
            // 设置通用的请求属性
            conn.setRequestProperty("accept", "*/*");
            conn.setRequestProperty("connection", "Keep-Alive");
            conn.setRequestProperty("Charsert", "GBK"); //设置请求编码
            conn.setRequestProperty("user-agent",
                    "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
            // 发送POST请求必须设置如下两行
            conn.setDoOutput(true);
            conn.setDoInput(true);
            // 获取URLConnection对象对应的输出流
            out = new PrintWriter(conn.getOutputStream());
            // 发送请求参数
            out.print(param);
            // flush输出流的缓冲
            out.flush();
            // 定义BufferedReader输入流来读取URL的响应
            in = new BufferedReader(
                    new InputStreamReader(conn.getInputStream(), "GBK"));
            String line;
            while ((line = in.readLine()) != null) {
                result += line;
            }
        } catch (Exception e) {
            System.out.println("发送 POST 请求出现异常！" + e);
            e.printStackTrace();
        }
        //使用finally块来关闭输出流、输入流
        finally {
            try {
                if (out != null) {
                    out.close();
                }
                if (in != null) {
                    in.close();
                }
            } catch (IOException ex) {
                ex.printStackTrace();
            }
        }
        return result;
    }


    public static void main(String[] args) {
        //发送 GET 请求
        String s = HttpRequest.sendGet("http://tianqi.2345.com/t/wea_history/js/201701/70188_201701.js", "");

        s = s.substring("var weather_str=".length(), s.length() - 1);
        System.out.println(s);

        JSONObject object = JSON.parseObject(s);
        String city = object.get("city").toString();
        System.out.println(object.get("city"));

        JSONArray array = JSONArray.parseArray(object.get("tqInfo").toString());
        for (int i = 0; i < array.size(); i++) {
            String ymd = array.getJSONObject(i).get("ymd").toString();
            String bWendu = array.getJSONObject(i).get("bWendu").toString();
            String yWendu = array.getJSONObject(i).get("yWendu").toString();
            String tianqi = array.getJSONObject(i).get("tianqi").toString();
            String fengxiang = array.getJSONObject(i).get("fengxiang").toString();
            String fengli = array.getJSONObject(i).get("fengli").toString();
            String aqi = array.getJSONObject(i).get("aqi").toString();
            String aqiInfo = array.getJSONObject(i).get("aqiInfo").toString();

            System.out.println(fengli);
        }




      /*  //发送 POST 请求
        String sr=HttpRequest.sendPost("http://localhost:6144/Home/RequestPostString", "key=123&v=456");
        System.out.println(sr);*/
    }
}

结果类 TqBean

package com.example.demo.tianqi;

public class TqBean {
    private String shen;
    private String city;
    private String url;
    private String code;

    private String ymd;
    private String bWendu;
    private String yWendu;
    private String tianqi;
    private String fengxiang;
    private String fengli;
    private String aqi;
    private String aqiInfo;

    public TqBean(String shen, String city, String ymd, String bWendu, String yWendu, String tianqi, String fengxiang, String fengli, String aqi, String aqiInfo) {
        this.shen = shen;
        this.city = city;
        this.ymd = ymd;
        this.bWendu = bWendu;
        this.yWendu = yWendu;
        this.tianqi = tianqi;
        this.fengxiang = fengxiang;
        this.fengli = fengli;
        this.aqi = aqi;
        this.aqiInfo = aqiInfo;
    }

    public TqBean(String shen, String city, String url, String code) {
        this.shen = shen;
        this.city = city;
        this.url = url;
        this.code = code;
    }

    public TqBean() {

    }

    public String getShen() {
        return shen;
    }

    public void setShen(String shen) {
        this.shen = shen;
    }

    public String getCity() {
        return city;
    }

    public void setCity(String city) {
        this.city = city;
    }

    public String getUrl() {
        return url;
    }

    public void setUrl(String url) {
        this.url = url;
    }

    public String getYmd() {
        return ymd;
    }

    public void setYmd(String ymd) {
        this.ymd = ymd;
    }

    public String getbWendu() {
        return bWendu;
    }

    public void setbWendu(String bWendu) {
        this.bWendu = bWendu;
    }

    public String getyWendu() {
        return yWendu;
    }

    public void setyWendu(String yWendu) {
        this.yWendu = yWendu;
    }

    public String getTianqi() {
        return tianqi;
    }

    public void setTianqi(String tianqi) {
        this.tianqi = tianqi;
    }

    public String getFengxiang() {
        return fengxiang;
    }

    public void setFengxiang(String fengxiang) {
        this.fengxiang = fengxiang;
    }

    public String getFengli() {
        return fengli;
    }

    public void setFengli(String fengli) {
        this.fengli = fengli;
    }

    public String getAqi() {
        return aqi;
    }

    public void setAqi(String aqi) {
        this.aqi = aqi;
    }

    public String getAqiInfo() {
        return aqiInfo;
    }

    public void setAqiInfo(String aqiInfo) {
        this.aqiInfo = aqiInfo;
    }

    public String getCode() {
        return code;
    }

    public void setCode(String code) {
        this.code = code;
    }
}

线程类 TianQiThread

package com.example.demo.tianqi;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.example.demo.util.HttpRequest;

import java.util.Set;

public class TianQiThread implements Runnable {

    private String shen;
    private String url;
    private Set<TqBean> resList;
    private Set<String> errirUrls;

    public TianQiThread(String shen, String url, Set<TqBean> resList, Set<String> errirUrls) {
        this.shen = shen;
        this.url = url;
        this.resList = resList;
        this.errirUrls = errirUrls;
    }

    @Override
    public void run() {
        String res = HttpRequest.sendGet(url, "");
        if (res.equals("")) {
            errirUrls.add(url);
        } else {
            res = res.substring("var weather_str=".length(), res.length() - 1);
            JSONObject object = JSON.parseObject(res);
            String city = object.get("city").toString();

            JSONArray array = JSONArray.parseArray(object.get("tqInfo").toString());
            for (int i = 0; i < array.size(); i++) {
                String ymd = array.getJSONObject(i).get("ymd").toString();
                String bWendu = array.getJSONObject(i).get("bWendu").toString();
                String yWendu = array.getJSONObject(i).get("yWendu").toString();
                String tianqi = array.getJSONObject(i).get("tianqi").toString();
                String fengxiang = array.getJSONObject(i).get("fengxiang").toString();
                String fengli = array.getJSONObject(i).get("fengli").toString();
                String aqi = array.getJSONObject(i).get("aqi").toString();
                String aqiInfo = array.getJSONObject(i).get("aqiInfo").toString();

                TqBean tq = new TqBean(shen, city, ymd, bWendu, yWendu, tianqi, fengxiang, fengli, aqi, aqiInfo);
                resList.add(tq);
            }
        }
    }
}

处理类 TianQiByYear

package com.example.demo.tianqi;

import com.example.demo.util.ReadExcel;
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;

import java.io.File;
import java.io.FileOutputStream;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;

public class TianQiByYear {

    private static int corePoolSize = 100;
    private static int maximumPoolSize = 1000;
    private static long keepAliveTime = 200;

    private static Set<TqBean> resList = new HashSet<>();
    private static Set<String> errirUrls = new HashSet<>();

    public static void main(String[] args) {
        try {
            Set<TqBean> list = new HashSet<>();

            List<List<String>> citylist = ReadExcel.readExcel("d:\2345.xlsx");

            // 以年为周期生成excel
            for (int year = 2017; year <= 2017; year++) {
                resList = new HashSet<>();
                errirUrls = new HashSet<>();

                for (List<String> row : citylist) {
                    String shen = row.get(0);
                    String city = row.get(1);
                    String code = row.get(2);

                    if (!"河南".equals(shen)) {
                        continue;
                    }

                    for (int month = 1; month <= 12; month++) {
                        String url = "http://tianqi.2345.com/t/wea_history/js/";
                        String m = month > 9 ? ("" + month) : "0" + month;
                        url += year + m + "/" + code + "_" + year + m + ".js";

                        TqBean tq = new TqBean(shen, city, url, code);
                        list.add(tq);
                    }
                }

                ThreadPoolExecutor executor = new ThreadPoolExecutor(corePoolSize, maximumPoolSize, keepAliveTime, TimeUnit.MILLISECONDS, new LinkedBlockingQueue<Runnable>());

                for (TqBean tq : list) {
                    executor.execute(new TianQiThread(tq.getShen(), tq.getUrl(), resList, errirUrls));
                }

                executor.shutdown();
                while (true) { //等待线程处理完毕
                    if (executor.isTerminated()) {
                        for (String s : errirUrls) {
                            System.out.println("失败url: [" + s + "]");
                        }
                        break;
                    }
                    Thread.sleep(300);
                }

                // 导出excel
                //创建新工作簿
                XSSFWorkbook workbook = new XSSFWorkbook();
                //新建工作表
                XSSFSheet sheet = workbook.createSheet("sheet");

                XSSFRow row0 = sheet.createRow(0);

                XSSFCell cell = row0.createCell(0);
                XSSFCell cell1 = row0.createCell(1);
                XSSFCell cell2 = row0.createCell(2);
                XSSFCell cell3 = row0.createCell(3);
                XSSFCell cell4 = row0.createCell(4);
                XSSFCell cell5 = row0.createCell(5);
                XSSFCell cell6 = row0.createCell(6);
                XSSFCell cell7 = row0.createCell(7);
                XSSFCell cell8 = row0.createCell(8);
                XSSFCell cell9 = row0.createCell(9);

                cell.setCellValue("省份");
                cell1.setCellValue("城市");
                cell2.setCellValue("日期");
                cell3.setCellValue("最高气温");
                cell4.setCellValue("最低气温");
                cell5.setCellValue("天气");
                cell6.setCellValue("风向");
                cell7.setCellValue("风力");
                cell8.setCellValue("空气质量");
                cell9.setCellValue("质量指数");

                int rownum = 1;
                for (TqBean t : resList) {
                    //创建行,行号作为参数传递给createRow()方法,第一行从0开始计算
                    XSSFRow row = sheet.createRow(rownum++);

                    //创建单元格,row已经确定了行号,列号作为参数传递给createCell(),第一列从0开始计算
                    XSSFCell mcell = row.createCell(0);
                    XSSFCell mcell1 = row.createCell(1);
                    XSSFCell mcell2 = row.createCell(2);
                    XSSFCell mcell3 = row.createCell(3);
                    XSSFCell mcell4 = row.createCell(4);
                    XSSFCell mcell5 = row.createCell(5);
                    XSSFCell mcell6 = row.createCell(6);
                    XSSFCell mcell7 = row.createCell(7);
                    XSSFCell mcell8 = row.createCell(8);
                    XSSFCell mcell9 = row.createCell(9);

                    mcell.setCellValue(t.getShen());
                    mcell1.setCellValue(t.getCity());
                    mcell2.setCellValue(t.getYmd());
                    mcell3.setCellValue(t.getbWendu());
                    mcell4.setCellValue(t.getyWendu());
                    mcell5.setCellValue(t.getTianqi());
                    mcell6.setCellValue(t.getFengxiang());
                    mcell7.setCellValue(t.getFengli());
                    mcell8.setCellValue(t.getAqi());
                    mcell9.setCellValue(t.getAqiInfo());
                }

                //输出到磁盘中
                FileOutputStream fos = new FileOutputStream(new File("F:\tianqi\" + year + "年天气.xlsx"));
                workbook.write(fos);
                fos.close();

                System.out.println("===========ok========================");
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}