ECHO TCP Server Client

//serverpackage com.test.javaSe02;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.io.PrintStream;import java.net.ServerSocket;import java.net.Socket;import com.ctl.util.PropertiesUtil;public class ECHOServer {public static void main(String[] args) {ServerSocket server = null;int port = Integer.parseInt(PropertiesUtil.loadProperties("E:\\JavaWeb\\A\\src\\com\\test\\javaSe02\\tcp.properties").getProperty("port"));try {server = new ServerSocket(port);} catch (IOException e) {e.printStackTrace();}PrintStream out = null;BufferedReader br = null;while (true) {Socket client = null;try {client = server.accept();br = new BufferedReader(new InputStreamReader(client.getInputStream()));out = new PrintStream(client.getOutputStream());boolean flag = true;while (flag) {String str = br.readLine();if (str.equals("") || null == str)flag = false;else {if ("bye".equals(str.toLowerCase()))flag = false;elseout.println("server echo:" + str);}}} catch (IOException e) {e.printStackTrace();}}}}//clientpackage com.test.javaSe02;import java.io.BufferedReader;import java.io.IOException;import java.io.InputStreamReader;import java.io.PrintStream;import java.net.Socket;import java.net.UnknownHostException;import java.util.Properties;import com.ctl.util.PropertiesUtil;public class ECHOClient {public static void main(String[] args) {Properties pro = PropertiesUtil.loadProperties("E:\\JavaWeb\\A\\src\\com\\test\\javaSe02\\tcp.properties");Socket client = null;try {client = new Socket(pro.getProperty("ip"), Integer.parseInt(pro.getProperty("port")));} catch (IOException e) {e.printStackTrace();}try {PrintStream out = null;boolean flag = true;while (flag) {out = new PrintStream(client.getOutputStream());String str = javax.swing.JOptionPane.showInputDialog("message");//System.out.println(str);out.println(str);if (str.equalsIgnoreCase("bye"))flag = false;else {System.out.println(new BufferedReader(new InputStreamReader(client.getInputStream())).readLine());}}client.close();} catch (IOException e) {e.printStackTrace();}}}//PropertiesUtilpackage com.ctl.util;import java.io.File;import java.io.FileInputStream;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import java.util.HashMap;import java.util.Map;import java.util.Properties;/** * @deprecated 该类可以用来创建properties资源文件 * @author Administrator * @see  www.ctl.com.cn * @category SDGHDHSDFG * @serial  dfgds */public class PropertiesUtil {/** *  * @param propertityPath *            资源文件要存放的路径例如H:/mysql.properties * @param map *            将要写入的资源放入该map中 HashMap<String, String> * @param comment *            对在资源文件的描述 */public static void createPropertityFile(String propertityPath, String comment, Map<String, String> map) {File file = new File(propertityPath);new File(file.getParent()).mkdirs();Properties pro = new Properties();for (Map.Entry<String, String> entry : map.entrySet()) {pro.setProperty(entry.getKey(), entry.getValue());}try {pro.store(new FileOutputStream(propertityPath), comment);} catch (Exception e) {System.err.println("存储properties出错");}}/** * @param map *            将要写入的资源放入该map中 HashMap<String, String> * @param comment *            对在资源文件的描述 * @param propertityPath *            资源文件要存放的路径例如H:/mysql.xml     */public static void createPropertityXMLFile(String propertityPath, String comment, Map<String, String> map) {File file = new File(propertityPath);new File(file.getParent()).mkdirs();Properties pro = new Properties();for (Map.Entry<String, String> entry : map.entrySet()) {pro.setProperty(entry.getKey(), entry.getValue());}try {pro.storeToXML(new FileOutputStream(propertityPath), comment,"utf-8");} catch (Exception e) {System.err.println("存储properties出错");}}/** *  * @param filePath "H:/mysql.properties" * @return  Properties的实例对象 */public static Properties loadProperties(String filePath){Properties pro=new Properties();try {pro.load(new FileInputStream(new File(filePath)));} catch (FileNotFoundException e) {System.err.println("文件未找到");e.printStackTrace();} catch (IOException e) {e.printStackTrace();}return pro;}/** *  * @param filePath "H:/mysql.xml" * @return  Properties的实例对象 */public static Properties loadXMLProperties(String filePath){Properties pro=new Properties();try {pro.loadFromXML(new FileInputStream(new File(filePath)));} catch (FileNotFoundException e) {System.err.println("文件未找到");e.printStackTrace();} catch (IOException e) {e.printStackTrace();}return pro;}/** * @param args */public static void main(String[] args) {Map<String, String> map = new HashMap<String, String>();map.put("a", "value1");map.put("b", "value2");map.put("c", "value3");String path="H:" + File.separator + "a//a/"+File.separator;createPropertityFile(path+"mysql.properties", "mysql数据库资源配置",map);createPropertityXMLFile(path+"mysql.xml", "mysql数据库资源配置",map);Properties pro=loadProperties(path+"mysql.properties");System.out.println(pro);pro=loadXMLProperties(path+"mysql.xml");System.out.println(pro);}}