服务器模拟数据并封装成成XML发送到客服端

来源：互联网发布：淘宝四海认证鱼竿双宝编辑：程序博客网时间：2024/05/17 04:31

这个程序是源于我的一个智能家居项目，需要将传感器（sensor）接收过来的数据，通过ZigBee模块发送到客户端，并在客户端的web页面展示。

服务端线程，用于模拟数据，封装成xml格式，通过socket通信发送给客户端

package com.server;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.io.PrintStream;import java.io.StringReader;import java.net.ServerSocket;import java.net.Socket;import javax.xml.bind.JAXBContext;import javax.xml.bind.JAXBException;import javax.xml.bind.Unmarshaller;import com.client.Sensor;public class ServerThread implements Runnable {    private final static int PORT = 3831;// 端口号    private static ServerSocket serverSocket;    private static Socket socket = null;    private BufferedReader bufferedReader = null;    private PrintStream print = null;    Sensor sensor = new Sensor();    public ServerThread() throws IOException {        // TODO Auto-generated constructor stub        serverSocket = new ServerSocket(PORT);        socket = serverSocket.accept();//阻塞等待        bufferedReader = new BufferedReader(new InputStreamReader(                socket.getInputStream()));    }    public static void main(String[] args) throws IOException {        new Thread(new ServerThread()).start();    }    /**     * 解析xml成javabean对象，并填充javabean属性     * @param xml     * @param obj     * @return     */    @SuppressWarnings("unchecked")    public static <Javebean> Javebean parseXML(String xml, Class<Javebean> obj) {        Javebean javebean = null;        try {            //获得JAXBContext实例，用于实现xml和java树之间的互转            JAXBContext jaxbContext = JAXBContext.newInstance(obj);            //创建解组器对象            Unmarshaller unmarshaller = jaxbContext.createUnmarshaller();            //将字符串格式的xml解析成对象，并填充相应的属性            javebean = (Javebean) unmarshaller.unmarshal(new StringReader(xml));        } catch (JAXBException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }        return javebean;    }    @Override    public void run() {        // TODO Auto-generated method stub        String receivedXML = null;//用于接收xml,每次接收完会清空        synchronized (this) {            try {                while(true)                {                    //读取发送过来的xml                    receivedXML = bufferedReader.readLine();                    //将获取的xml解析成sensor类，并填充属性                    Sensor sensor = parseXML(receivedXML,Sensor.class);                    //获得数据                    System.out.println(sensor.getSensor_id()+" "+sensor.getCurrent_concentrations()+" "+sensor.getThreshold());                }                           } catch (Exception e) {                // TODO Auto-generated catch block                e.printStackTrace();            }           }    }}

客服端线程，用于接收来自客户端的xml格式数据，并解析成javabean，通过操作javabean对象来获取数据

package com.client;import java.io.IOException;import java.io.PrintWriter;import java.io.StringWriter;import java.net.Socket;import java.net.UnknownHostException;import java.util.Random;import java.util.regex.Matcher;import java.util.regex.Pattern;import javax.xml.bind.JAXBContext;import javax.xml.bind.JAXBException;import javax.xml.bind.Marshaller;import javax.xml.bind.annotation.XmlRootElement;public class ClientThread implements Runnable{    private final String URL = "127.0.0.1";//ip地址    private final int PORT = 3831;//端口号    private Socket socket = null;    private PrintWriter printWriter  = null;    Sensor sensor = new Sensor();    public ClientThread() throws IOException    {        socket = new Socket(URL,PORT);        printWriter = new PrintWriter(socket.getOutputStream(),true);    }    /**     * 主入口函数     * @param args     */    public static void main(String[] args) {        try {            //启动线程            new Thread(new ClientThread()).start();        } catch (IOException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }    }    //封装成xml    public static String getXML(Object obj,String encoding)    {        String getedXML = "";        try {            //获得JAXBContext实例，用于实现xml和java树之间的互转            JAXBContext jaxbContext = JAXBContext.newInstance(obj.getClass());            //创建编组器对象            Marshaller marshaller = jaxbContext.createMarshaller();            //设置转成xml自动格式化            marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);            //设置编码            marshaller.setProperty(Marshaller.JAXB_ENCODING, "utf-8");            StringWriter stringWriter = new StringWriter();            //将obj转成xml，并写入一个字符流            marshaller.marshal(obj, stringWriter);            getedXML = stringWriter.toString();        } catch (JAXBException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }        return getedXML;    }    /**     * 获取min,到max范围的随机整数     * @param min     * @param max     * @return     */    public static int getInt(int min,int max)    {        Random random = new Random();        int getedInt = random.nextInt(max)%(max-min+1) + min;        return getedInt;    }   /**    * 获取min,到max范围的随机浮点数    * @param min    * @param max    * @return    */    public static float getFloat(float min,float max)    {        Random random = new Random();        float getedFloat = random.nextFloat()*(max-min) + min;        return getedFloat;    }    @Override    public void run() {        // TODO Auto-generated method stub            while(true)            {                synchronized (this) {                    try {                        Thread.sleep(3000);//3000毫秒发一次                        //填充数据                        sensor.setSensor_id(getInt(1,2));                        sensor.setCurrent_concentrations(getFloat(10f,50f));                        sensor.setThreshold(30.5f);                        //取出换行符                        String sendedXML = getXML(sensor,"utf-8");                        Pattern p = Pattern.compile("\n");                        Matcher m = p.matcher(sendedXML);                        sendedXML = m.replaceAll("  ");                        //发送xml到服务器                        printWriter.println(sendedXML);                    } catch (Exception e) {                        // TODO Auto-generated catch block                        e.printStackTrace();                    }                }                   }           }   }

javabean类，用于填充数据

package com.client;import java.io.Serializable;import javax.xml.bind.annotation.XmlAccessType;import javax.xml.bind.annotation.XmlAccessorType;import javax.xml.bind.annotation.XmlElement;import javax.xml.bind.annotation.XmlRootElement;import javax.xml.bind.annotation.XmlType;@XmlAccessorType(XmlAccessType.FIELD)  @XmlRootElement(name = "sensor")//不可少，标识根元素@XmlType(propOrder = { "sensor_id", "current_concentrations", "threshold"})  public class Sensor implements Serializable{    @XmlElement(required = true)     private int sensor_id;//传感器id    @XmlElement(required = true)     private float current_concentrations;//当前浓度    @XmlElement(required = true)     private float threshold;//正常浓度    public int getSensor_id() {        return sensor_id;    }    public void setSensor_id(int sensor_id) {        this.sensor_id = sensor_id;    }    public float getCurrent_concentrations() {        return current_concentrations;    }    public void setCurrent_concentrations(float current_concentrations) {        this.current_concentrations = current_concentrations;    }    public float getThreshold() {        return threshold;    }    public void setThreshold(float threshold) {        this.threshold = threshold;    }    @Override    public String toString() {        return "Sensor [sensor_id=" + sensor_id + ", current_concentrations="                + current_concentrations + ", threshold=" + threshold + "]";    }}

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