1 package XMLServiceAndClient; 2  3 public class Emp { 4     private int id; 5     private String name; 6     private int age; 7     private double salary; 8     public int getId() { 9         return id;10     }11     public void setId(int id) {12         this.id = id;13     }14     public String getName() {15         return name;16     }17     public void setName(String name) {18         this.name = name;19     }20     public int getAge() {21         return age;22     }23     public void setAge(int age) {24         this.age = age;25     }26     public double getSalary() {27         return salary;28     }29     public void setSalary(double salary) {30         this.salary = salary;31     }32     @Override33     public String toString() {34         return "Emp [id=" + id + ", name=" + name + ", age=" + age35                 + ", salary=" + salary + "]";36     }37     public Emp() {38     }39     public Emp(int id, String name, int age, double salary) {40         super();41         this.id = id;42         this.name = name;43         this.age = age;44         this.salary = salary;45     }46     47     48 }

 1 package XMLServiceAndClient; 2  3 import java.io.File; 4 import java.io.FileInputStream; 5 import java.io.FileOutputStream; 6 import java.io.IOException; 7 import java.io.OutputStream; 8 import java.net.ServerSocket; 9 import java.net.Socket;10 import java.util.ArrayList;11 import java.util.List;12 13 import org.dom4j.Document;14 import org.dom4j.DocumentHelper;15 import org.dom4j.Element;16 import org.dom4j.io.XMLWriter;17 18 /**19  *步骤：    1.服务器将List对象存入XML文件中，XML文件名为emp5.xml 20  *        2.服务器读取XML文件，将文件发送给客户端21  */22 public class Service {23     private ServerSocket ss;24     private int port = 8080;25     private List<Emp> list;26     /**利用构造函数初始化ServerSocket*/27     public Service(){28         try {29             ss = new ServerSocket(port);30             list = new ArrayList<Emp>();31             list.add(new Emp(1,"张三",20,2000));32             list.add(new Emp(2,"李四",30,4000));33             list.add(new Emp(3,"王五",40,6000));34         } catch (IOException e) {35             e.printStackTrace();36         }37     }38     /**服务器启动*/39     public void start(){40         try {41             Socket s = ss.accept();//等待客户端进入42             OutputStream os = s.getOutputStream();//获取输出流43             Document doc = DocumentHelper.createDocument();//获取document对象44             Element root = doc.addElement("list");45             for (Emp emp : list) {46                 Element e = root.addElement("emp");47                 e.addAttribute("id", ""+emp.getId());48                 e.addElement("name").addText(emp.getName());49                 e.addElement("age").addText(""+emp.getAge());50                 e.addElement("salary").addText(""+emp.getSalary());51             }52             FileOutputStream fos = new FileOutputStream(new File("emp5.xml"));53             XMLWriter writer = new XMLWriter();54             writer.setOutputStream(fos);55             writer.write(doc);//将document输出到XML文件56             writer.close();57             fos.close();58             FileInputStream fis = new FileInputStream(new File("emp5.xml"));59             byte[] buf = new byte[1024];//设置缓冲区大小60             int size = -1;61             while((size=fis.read(buf))!=-1){62                 os.write(buf, 0, size);63             }64             fis.close();65             s.close();66         } catch (IOException e) {67             e.printStackTrace();68         }69     }70     public static void main(String[] args) {71         Service s = new Service();72         s.start();73     }74 }

 1 package XMLServiceAndClient; 2  3 import java.io.File; 4 import java.io.FileOutputStream; 5 import java.io.InputStream; 6 import java.net.Socket; 7 import java.util.ArrayList; 8 import java.util.List; 9 10 import org.dom4j.Document;11 import org.dom4j.Element;12 import org.dom4j.io.SAXReader;13 14 15 /**16  *步骤：    1.客户端接受服务器发送的XML文件，将文件存入磁盘17  *        2.读取存入的XML文件，解析，然后转为List对象，在控制台打印输出 18  */19 public class Client {20     private Socket s;21     private int port = 8080;22     private List<Emp> list;23     24     public void start(){25         try {26             s = new Socket("localhost", port);27             InputStream is = s.getInputStream();28             FileOutputStream fos = new FileOutputStream(new File("emp6.xml"));29             byte[] buf = new byte[1024];//设置缓冲区大小30             int size = -1;31             while((size=is.read(buf))!=-1){32                 fos.write(buf, 0, size);33             }34             fos.close();35             s.close();36             list = new ArrayList<Emp>();37             SAXReader reader = new SAXReader();38             Document doc = reader.read(new File("emp6.xml"));39             Element root = doc.getRootElement();40             List<Element> elements = root.elements();41             for (Element element : elements) {42                 Emp emp = new Emp();43                 emp.setId(Integer.parseInt(element.attribute("id").getValue()));44                 emp.setName(element.element("name").getText());45                 emp.setAge(Integer.parseInt(element.element("age").getText()));46                 emp.setSalary(Double.parseDouble(element.element("salary").getText()));47                 list.add(emp);48             }49             System.out.println(list);50         } catch (Exception e) {51             e.printStackTrace();52         }53     }54     55     public static void main(String[] args) {56         Client c = new Client();57         c.start();58         59     }60 }