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java天气查询

由 ℡╲_俬逩灬. 提交于 2019-12-11 19:24:00

java天气查询

import java.awt.Color;
import java.awt.Container;
import java.awt.Graphics;
import java.awt.Point;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;

public class WeatherForecast extends JFrame{
 static JButton btn_search=new JButton("查询");
 static JTextField text=new JTextField(10);
 static JLabel lab_city=new JLabel("城市: ");
 static JLabel lab_today=new JLabel("今天 ");
 static JLabel lab_tomorrow=new JLabel("明天 ");
 static JLabel lab_afterTomorrow=new JLabel("后天 ");
 static JLabel lab_Temperature=new JLabel("温度: ");
 static JLabel lab_wind=new JLabel("风力: ");
 static JLabel lab_Weather=new JLabel("天气: ");
 double x,y;
 Container con;
 JPanel pan=new JPanel();
 static WeatherForecast forecase=new WeatherForecast();
 public  void getFrame()throws Exception{
  forecase.setVisible(true);
  forecase.setSize(250,300);
     forecase.setLocation(new Point(400,150));
     forecase.setResizable(false);
  //forecase.setDefaultCloseOperation(3);
  forecase.add(pan);
  pan.setLayout(null);
  pan.add(lab_city);
  pan.add(text);
  pan.add(btn_search);
  pan.add(lab_afterTomorrow);
  pan.add(lab_Temperature);
  pan.add(lab_tomorrow);
  pan.add(lab_today);
  pan.add(lab_Weather);
  pan.add(lab_wind);
  lab_city.setBounds(15,8,65,23);
  text.setBounds(60,8,70,21);
  btn_search.setBounds(150,6,70,23);
  lab_today.setBounds(50,35,65,23);
  lab_tomorrow.setBounds(110,35,65,23);
  lab_afterTomorrow.setBounds(170,35,65,23);
  lab_Weather.setBounds(15,55,65,23);
  lab_Temperature.setBounds(15,75,65,23);
  lab_wind.setBounds(15,95,65,23);
  SwingUtilities.updateComponentTreeUI(btn_search);
  SwingUtilities.updateComponentTreeUI(text);
  text.grabFocus();
  btn_search.addActionListener(new ActionListener(){
   @Override
   public void actionPerformed(ActionEvent ae) {
    final String city=text.getText();
    pan.repaint();
    new Thread(){
     public void run(){
      while(true){
       try{
       Thread.sleep(1000);
       }catch(Exception e){}
      drawTrend(main(city),pan);
      }
     }
    }.start();
   }
  });
  text.addActionListener(new ActionListener(){
   public void actionPerformed(ActionEvent arg0) {
    if(text.getText().trim().length()!=0){
     btn_search.doClick();
    }else{
     JOptionPane.showMessageDialog(null,"请输入城市名称");
    }
   }
  });
 }
 public void drawTrend(Weather w,JPanel j){
  Graphics g=j.getGraphics();
  g.setColor(Color.blue);
  g.drawString(w.todayWeather, 53,69);
  g.drawString(w.todayTemperautre, 53,89);
  g.drawString(w.todayWind, 53,109);
  g.drawString(w.tomorrowWeather, 110, 69);
  g.drawString(w.tomorrowTemperature, 110, 89);
  g.drawString(w.tomorrowWind, 110, 109);
  g.drawString(w.afterTomorrowWeather, 170, 69);
  g.drawString(w.afterTomorrowTemperature, 170, 89);
  g.drawString(w.afterTomorrowWind, 170, 109);
  g.setColor(new Color(200,200,209));
  g.fillRect(25,120,196,130);
  g.setColor(Color.red);
  g.drawString("今天", 24,265);
  g.drawString("明天", 104,265);
  g.drawString("后天", 184,265);
  g.setColor(Color.BLACK);
  g.drawString("℃",5,120);
  g.drawString("  0", 5,185);
  g.drawString(" 20", 5,152);
  g.drawString(" 40", 5,120);
  g.drawString("-20", 5,217);
  g.drawString("-40", 5,250);
  g.drawString("℃",227,120);
  g.drawString("40",222,128);
  g.drawString("20",222,158);
  g.drawString("0 ",222,188);
  g.drawString("-20",222,218);
  g.drawString("-40",222,248);
  drawWeatherTemperature(w,g);
 }
 public void drawWeatherTemperature(Weather wea,Graphics g){
  try{
   g.setColor(new Color(200,150,40));
   if(wea.todayTemperautre.contains("～")){
    Double firstTemperature=Double.parseDouble((wea.todayTemperautre.split("～")[0]));
    Double secondTemperature=Double.parseDouble((wea.todayTemperautre.split("～")[1].split("℃")[0]));
    double firstTem=firstTemperature.doubleValue();
    double secondTem=secondTemperature.doubleValue();
    double z1=0.00;
    double z2=0.00;
    int trendY=0;
    int trendH=0;
    int trendCH=0;
    if(firstTemperature>0)
     z1=firstTem*1.625+65.00;
    else if(firstTemperature<0)
     z1=65-1.625*firstTem;
    else
     z1=0.00;
    if(secondTemperature>0)
     z2=secondTem*1.625+65.00;
    else if(secondTem<0)
     z2=65-1.625*secondTem;
    else
     z2=0.00;
    if(z1>z2){
     trendY=(int)(130-z1+120+0.5);
     trendH=(int)(z1+0.5);
     trendCH=(int)(z1-z2+0.5);
    }
    else {
     trendY=(int)(130-z2+120+0.5);
     trendH=(int)(z2+0.5);
     trendCH=(int)(z2-z1+0.5);
    }
    g.fillRect(30,trendY,30,trendH);
    g.setColor(Color.blue);
    g.fillRect(30,trendY,30,trendCH);
    g.setColor(new Color(200,150,40));
    System.out.println("firstTem:"+firstTem);
    System.out.println("secondTem:"+secondTem);
   }
   if(!wea.todayTemperautre.contains("～")){
    Double temperature=Double.parseDouble(wea.todayTemperautre.split("℃")[0]);
    double Tem=temperature.doubleValue();
    double h=0.00;
    int trendY=0;
    int trendH=0;
    if(Tem>0)
     h=Tem*1.625+65.00;
    else if(Tem<0)
     h=65-1.625*Tem;
    else
     h=0.00;
    trendY=(int)(120+130-h+0.5);
    trendH=(int)(h+0.5);
    g.fillRect(30,trendY,30,trendH);
   }
  }catch(ArrayIndexOutOfBoundsException e){
   e.printStackTrace();
  }
  try{
   if(wea.tomorrowTemperature.contains("～")){
    Double firstTemperature=Double.parseDouble((wea.tomorrowTemperature.split("～")[0]));
    Double secondTemperature=Double.parseDouble((wea.tomorrowTemperature.split("～")[1].split("℃")[0]));
    double firstTem=firstTemperature.doubleValue();
    double secondTem=secondTemperature.doubleValue();
    double z1=0.00;
    double z2=0.00;
    int trendY=0;
    int trendH=0;
    int trendCH=0;
    if(firstTemperature>0)
     z1=firstTem*1.625+65.00;
    else if(firstTemperature<0)
     z1=65-1.625*firstTem;
    else
     z1=0.00;
    if(secondTemperature>0)
     z2=secondTem*1.625+65.00;
    else if(secondTem<0)
     z2=65-1.625*secondTem;
    else
     z2=0.00;
    if(z1>z2){
     trendY=(int)(130-z1+120+0.5);
     trendH=(int)(z1+0.5);
     trendCH=(int)(z1-z2+0.5);
    }
    else {
     trendY=(int)(130-z2+120+0.5);
     trendH=(int)(z2+0.5);
     trendCH=(int)(z2-z1+0.5);
    }
    g.fillRect(90,trendY,30,trendH);
    g.setColor(Color.blue);
    g.fillRect(90,trendY,30,trendCH);
    g.setColor(new Color(200,150,40));
   }
   if(!wea.tomorrowTemperature.contains("～")){
    Double temperature=Double.parseDouble(wea.tomorrowTemperature.split("℃")[0]);
    double Tem=temperature.doubleValue();
    double h=0.00;
    int trendY=0;
    int trendH=0;
    if(Tem>0)
     h=Tem*1.625+65.00;
    else if(Tem<0)
     h=65-1.625*Tem;
    else
     h=0.00;
    trendY=(int)(120+130-h+0.5);
    trendH=(int)(h+0.5);
    g.fillRect(90,trendY,30,trendH);
   }
  }catch(ArrayIndexOutOfBoundsException e){
   e.printStackTrace();
  }
  try{
   if(wea.afterTomorrowTemperature.contains("～")){
    Double firstTemperature=Double.parseDouble((wea.afterTomorrowTemperature.split("～")[0]));
    Double secondTemperature=Double.parseDouble((wea.afterTomorrowTemperature.split("～")[1].split("℃")[0]));
    double firstTem=firstTemperature.doubleValue();
    double secondTem=secondTemperature.doubleValue();
    double z1=0.00;
    double z2=0.00;
    int trendY=0;
    int trendH=0;
    int trendCH=0;
    if(firstTemperature>0)
     z1=firstTem*1.625+65.00;
    else if(firstTemperature<0)
     z1=65-1.625*firstTem;
    else
     z1=0.00;
    if(secondTemperature>0)
     z2=secondTem*1.625+65.00;
    else if(secondTem<0)
     z2=65-1.625*secondTem;
    else
     z2=0.00;
    if(z1>z2){
     trendY=(int)(130-z1+120+0.5);
     trendH=(int)(z1+0.5);
     trendCH=(int)(z1-z2+0.5);
    }
    else {
     trendY=(int)(130-z2+120);
     trendH=(int)z2;
     trendCH=(int)(z2-z1);
    }
    g.fillRect(150,trendY,30,trendH);
    g.setColor(Color.blue);
    g.fillRect(150,trendY,30,trendCH);
    g.setColor(new Color(200,150,40));
   }
   if(!wea.afterTomorrowTemperature.contains("～")){
    Double temperature=Double.parseDouble(wea.afterTomorrowTemperature.split("℃")[0]);
    double Tem=temperature.doubleValue();
    double h=0.00;
    int trendY=0;
    int trendH=0;
    if(Tem>0)
     h=Tem*1.625+65.00;
    else if(Tem<0)
     h=65-1.625*Tem;
    else
     h=0.00;
    trendY=(int)(120+130-h+0.5);
    trendH=(int)(h+0.5);
    g.fillRect(150,trendY,30,trendH);
   }
  }catch(ArrayIndexOutOfBoundsException e){
   e.printStackTrace();
  }
 }
     public static Weather main(String str){
       Scanner sc=new Scanner(System.in);
        try{
       URL url=new URL("http://www.baidu.com/s?wd="+URLEncoder.encode(str,"gbk")+"%CC%EC%C6%F8");
       URLConnection con=url.openConnection();
       BufferedReader reader=new BufferedReader(new InputStreamReader(con.getInputStream(),"UTF-8"));
       StringBuffer buf=new StringBuffer();
       String s="";
       while((s=reader.readLine())!=null){
        buf.append(s);
       }
       String mes=buf.toString();
       //今天天气
       Weather wea=new Weather();
       try{
        String t="<strong class=\"altemp_special\">";
        String m=mes.substring(mes.indexOf(t)+t.length());
        String strong="</strong><br><strong>";
        String span="</strong><br><span>";
        String wd=m.substring(0,m.indexOf(strong));
        String tq=m.substring(m.indexOf(strong)+strong.length());
        tq=tq.substring(0,tq.indexOf(span));
        String fl=m.substring(m.indexOf(span)+span.length());
        fl=fl.substring(0,fl.indexOf("</span></td>"));
        wea.todayTemperautre=wd;
        wea.todayWeather=tq;
        wea.todayWind=fl;
       }catch(ArrayIndexOutOfBoundsException e){
        e.printStackTrace();
       }
       //明天天气
       try{
        String WeatherStr="</div><strong class=\"altemp_special\">";
        String []weatherMes=mes.split(WeatherStr);
        String tomorrowWeather=weatherMes[2];
        String tomorrowEnd="</span></td><td class=\"al_tr al_tl\">";
        tomorrowWeather=tomorrowWeather.substring(0,tomorrowWeather.indexOf(tomorrowEnd));
        String tomorrowTemperature=tomorrowWeather.substring(0,tomorrowWeather.indexOf("</strong>"));
        String tomorrowDetail=tomorrowWeather.split("<strong>")[1].substring(0,tomorrowWeather.split("<strong>")[1].indexOf("</strong>"));
        String tomorrowWind=tomorrowWeather.substring(tomorrowWeather.indexOf("<br><span>")+"<br><span>".length());
        wea.tomorrowTemperature=tomorrowTemperature;
        wea.tomorrowWeather=tomorrowDetail;
        wea.tomorrowWind=tomorrowWind;
       }catch(ArrayIndexOutOfBoundsException e){
        e.printStackTrace();
       }
       //后天天气
       try{
        String afterTomorrowWeather=mes.split("/></a></div>")[3];
        String afterTomorrowEnd="</span></td><td class=\"al_tl\">";
        afterTomorrowWeather=afterTomorrowWeather.substring(0,afterTomorrowWeather.indexOf(afterTomorrowEnd));
        String afterTomorrowTemperature=afterTomorrowWeather.substring(0,afterTomorrowWeather.indexOf("<br>"));
        String aftertomorrowDetail=afterTomorrowWeather.split("<br>")[1];
        String afterTomorrowWind=afterTomorrowWeather.substring(afterTomorrowWeather.indexOf("<br><span>")+"<br><span>".length());
        wea.afterTomorrowTemperature=afterTomorrowTemperature;
        wea.afterTomorrowWeather=aftertomorrowDetail;
        wea.afterTomorrowWind=afterTomorrowWind;
       }catch(ArrayIndexOutOfBoundsException e){
        e.printStackTrace();
       }
       return wea;
       }catch(StringIndexOutOfBoundsException ex){
        JOptionPane.showMessageDialog(null,"输入的内容不合法");
        ex.printStackTrace();
       }catch(java.net.UnknownHostException s){
       JOptionPane.showMessageDialog(null,"请检查你的网络连接");
       }catch(java.net.NoRouteToHostException s){
     JOptionPane.showMessageDialog(null,"请检查你的网络连接");
       }catch(Exception e){
        e.printStackTrace();
      }
       return null;
     }
     public static void main(String[] args) {
  try {
   String lookAndFeel = "com.sun.java.swing.plaf.windows.WindowsClassicLookAndFeel";
     UIManager.setLookAndFeel(lookAndFeel);
   new WeatherForecast().getFrame();
  } catch (Exception e) {
   e.printStackTrace();
  }
 }
}
class Weather{
 String todayTemperautre;
 String todayWeather;
 String todayWind;
 String tomorrowTemperature;
 String tomorrowWeather;
 String tomorrowWind;
 String afterTomorrowTemperature;
 String afterTomorrowWeather;
 String afterTomorrowWind;
}
标签
string
z2
z1
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