Socket服务端和客户端XML生成与解析java代码.doc

1.Socket的Util辅助类
import .*;
import java.io.*;
/**
* 2.socket的Util辅助类
*
* @author willson
*
*/
public class ClientSocket {
private String ip;
private int port;
private Socket socket = null;
DataOutputStream out = null;
DataInputStream getMessageStream = null;
public ClientSocket(String ip, int port) {
this.ip = ip;
this.port = port;
}
/**
* 创建socket连接
*
* @throws Exception
* exception
*/
public void CreateConnection() throws Exception {
try {
socket = new Socket(ip, port);
} catch (Exception e) {
e.printStackTrace();
if (socket != null)
socket.close();
throw e;
} finally {
}
}
// 发送消息
public void sendMessage(String sendMessage) throws Exception {
try {
out = new DataOutputStream(socket.getOutputStream());
if (sendMessage.equals("Windows")) {
out.writeByte(0x1);
out.flush();
return;
}
if (sendMessage.equals("Unix")) {
out.writeByte(0x2);
out.flush();
return;
}
if (sendMessage.equals("Linux")) {
out.writeByte(0x3);
out.flush();
} else {
out.writeUTF(sendMessage);
out.flush();
}
} catch (Exception e) {
e.printStackTrace();
if (out != null)
out.close();
throw e;
} finally {
}
}
// 接受消息
public DataInputStream getMessageStream() throws Exception {
try {
getMessageStream = new DataInputStream(new BufferedInputStream(
socket.getInputStream()));
return getMessageStream;
} catch (Exception e) {
e.printStackTrace();
if (getMessageStream != null)
getMessageStream.close();
throw e;
} finally {
}
}
// 关闭连接
public void shutDownConnection() {
try {
if (out != null)
out.close();
if (getMessageStream != null)
getMessageStream.close();
if (socket != null)
socket.close();
} catch (Exception e) {
}
}
}

2.Socket服务器端
import java.io.BufferedInputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import .ServerSocket;
import .Socket;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.w3c.dom.Comment;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
/**
* 1.服务器端
*
* @author willson
*
*/
public class ServerTest {
//设置端口号，一遍客户端调用
int port = 8821;
void start() {
Socket socket = null;
try {
//创建绑定到特定端口的服务器套接字。
ServerSocket serverSocket = new ServerSocket(port);
while (true) {
// 选择进行传输的文件
String filePath = writeXMLFile();
File fi = new File(filePath);
System.out.println("File Name：" + fi.getName() + ";\tFile Size()：" + (int) fi.length() + "bytes");
System.out.println("等待客户端连接，连接端口：" + port);
//侦听并接受到此套接字的连接。此方法在连接传入之前一直阻塞
socket = serverSocket.accept();
System.out.println("建立socket链接");
//socket.getInputStream()返回此套接字的输入流
DataInputStream dis = new DataInputStream(new BufferedInputStream(socket.getInputStream()));
dis.readByte();
DataInputStream fis = new DataInputStream(new BufferedInputStream(new FileInputStream(filePath)));
DataOutputStream ps = new DataOutputStream(socket.getOutputStream());
// 将文件名及长度传给客户端。这里要真正适用所有平台，例如中文名的处理，还需要加工，具体可以参见Think In Java
// 4th里有现成的代码。
ps.writeUTF(fi.getName());
ps.flush();
ps.writeLong((long) fi.length());
ps.flush();
int bufferSize = 8192;
byte[] buf = new byte[bufferSize];
while (true) {
int read = 0;
if (fis != null) {
read = fis.read(buf);
}
if (read == -1) {
break;
}
ps.write(buf, 0, read);
}
ps.flush();
// 注意关闭socket链接哦，不然客户端会等待server的数据过来，
// 直到socket超时，导致数据不完整。
fis.close();
socket.close();
System.out.println("文件传输完成\n");
}

} catch (Exception e) {
e.printStackTrace();
}
}
//DOM生成XML文件
private String writeXMLFile(){
//获取dom解析的工厂
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder;
//创建xml文件生成路径
String path="E:\\why.xml";
try {
builder = factory.newDocumentBuilder();
Document doc = builder.newDocument();
//作为 XML 声明 的一部分指定此文档版本号的属性
doc.setXmlVersion("1.0");
//创建给定指定字符串的 Comment 节点。
//Comment此接口继承自 CharacterData 表示注释的内容，即起始 '<!--' 和结束 '-->' 之间的所有字符。注意，这是在 XML（实际上是 HTML）中的注释的定义，尽管有些 HTML 工具可以实现完整 SGML 注释结构。
Comment comment = doc.createComment("创建xml文件");
doc.appendChild(comment);
//创建指定类型的元素
Element root = doc.createElement("职员");
Element name = doc.createElement("姓名");
name.appendChild(doc.createTextNode("王海燕"));
Element sex = doc.createElement("性别");
sex.setAttribute("name", "女");
root.appendChild(name);
root.appendChild(sex);
doc.appendChild(root);
//TransformerFactory 实例可用于创建 Transformer 和 Templates 对象
TransformerFactory factory1 = TransformerFactory.newInstance();
// factory1.newTransformer()创建执行从 Source 到 Result 的复制的新 Transformer
Transformer tformer = factory1.newTransformer();
//将 XML Source 转换为 Result。当实例化 Transformer 和对 Transformer 实例进行任何修改时，指定的转换行为由 TransformerFactory 的实际设置决定。
//空 Source 表示为由 DocumentBuilder.newDocument() 构造的空文档。空 Source 的转换结果取决于转换行为；结果不总为空 Result
tformer.transform(new DOMSource(doc), new StreamResult(path));
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

return path;

}
public static void main(String arg[]) {
new ServerTest().start();
}
}

3.Socket客户端
import java.io.BufferedOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
/**
* 3.客户端
*
* @author willson
*
*/
public class ClientTest {
private ClientSocket cs = null;
private String ip = "localhost";// 设置成服务器IP
private int port = 8821;
private String sendMessage = "Windwos";
public ClientTest() {
try {
if (createConnection()) {
sendMessage();
getMessage("F:\\");
}
} catch (Exception ex) {
ex.printStackTrace();
}
}
private boolean createConnection() {
cs = new ClientSocket(ip, port);
try {
cs.CreateConnection();
System.out.print("连接服务器成功!" + "\n");
return true;
} catch (Exception e) {
System.out.print("连接服务器失败!" + "\n");

return false;
}
}
private void sendMessage() {

if (cs == null)
return;
try {
cs.sendMessage(sendMessage);
} catch (Exception e) {
System.out.print("发送消息失败!" + "\n");
}
}
private void getMessage(String savePath) {

if (cs == null)
return;
DataInputStream inputStream = null;
try {
inputStream = cs.getMessageStream();
} catch (Exception e) {
System.out.print("接收消息缓存错误\n");
return;
}
try {

// 本地保存路径，文件名会自动从服务器端继承而来。
int bufferSize = 8192;
byte[] buf = new byte[bufferSize];
int passedlen = 0;
long len = 0;
savePath += inputStream.readUTF();
DataOutputStream fileOut = new DataOutputStream(new BufferedOutputStream(new BufferedOutputStream(new FileOutputStream(savePath))));
len = inputStream.readLong();
System.out.println("File Size()：" + len + "bytes");
System.out.println("开始接收文件!" + "\n");
while (true) {
int read = 0;
if (inputStream != null) {
read = inputStream.read(buf);
}
passedlen += read;
if (read == -1) {
break;
}
// 下面进度条本为图形界面的prograssBar做的，这里如果是打文件，可能会重复打印出一些相同的百分比
System.out.println("文件接收了" + (passedlen * 100 / len) + "%\n");
fileOut.write(buf, 0, read);
}
System.out.println("接收完成，文件存为" + savePath + "\n");
fileOut.close();
} catch (Exception e) {
System.out.println("接收消息错误" + "\n");
return;
}
jiexi(savePath);
}
public static void main(String arg[]) {
new ClientTest();
}
private static void jiexi(String savePath){
//获取dom解析的工厂
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
//是否删除空格 false true
factory.setIgnoringElementContentWhitespace(true);
//获取解析器
DocumentBuilder builder;
try {
builder = factory.newDocumentBuilder();
//把xml文档输入到解析器中,并获取xml文档对应的document对象
Document document = builder.parse(new File(savePath));
//Document document = builder.parse(new File("src\\book.xml"));
//Document document = builder.parse(new File("src\\cn\\csdn\\dom\\book.xml"));
System.out.println(document.getDocumentURI());
Element root=document.getDocumentElement();
String tagname=root.getTagName();
System.out.println("根节点:"+tagname);
NodeList NList=root.getChildNodes();
display(NList);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public static void display(NodeList NList){
for(int i=0;i<NList.getLength();i++){
Node node=NList.item(i);
System.out.println(node.getNodeName());
//返回此节点是否具有任何子节点
if(node.hasChildNodes()){
NodeList list=node.getChildNodes();
display(list);
}else{
if(node.getNodeType()==Node.TEXT_NODE){
//getTextContent()此属性返回此节点及其后代的文本内容
System.out.println("=========="+node.getTextContent());
}
break;
}

}
}
}