登录 之 通讯机制（socket）续 --- 代码优化

因为代码的重用性，所以采用单实例的模式：

抽象接口（父类）ActionInterface：

package com.net.action;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.io.IOException;import java.io.InputStream;import java.io.OutputStream;import java.net.ConnectException;import java.net.Socket;import java.net.UnknownHostException;import com.net.convert.Security;import com.net.ui.LandWindow;public abstract class ActionInterface implements ActionListener {protected LandWindow landUI=null;protected String name;protected String pswd;protected String IP=null;protected int SERVERPORT=-1;protected String SPLITSTR=null;protected OutputStream os=null;protected InputStream is=null;protected String respondStyle="style";protected final String ISACK = "ACK";protected final String ISNAK = "NAK!";public ActionInterface(LandWindow landUI) {this.landUI=landUI;}public void actionPerformed(ActionEvent arg0) {landUI.getUserNameLabel().setText(null);landUI.getPasswdLabel().setText(null);landUI.getStatLabel().setText(null);}public void setIP(String ip){this.IP=ip;}public void setSplitStr(String splitStr){this.SPLITSTR=splitStr;}public void setServerPort(int port){this.SERVERPORT=port;}protected void start() { // 建立联网线程new Thread(new Runnable() {public void run() {Socket s = null;try {s = new Socket(IP, SERVERPORT);os = s.getOutputStream();os.write((name + SPLITSTR + pswd + SPLITSTR + respondStyle).getBytes());os.flush();// 读内容Thread.sleep(1000);is = s.getInputStream();int len = is.available();byte[] bytes = new byte[len];is.read(bytes);String result = new String(bytes);// TODO 这里通过返回结果处理String[] strs=result.split(SPLITSTR);String resultStatus=strs[0];String resultInfo=strs[1];if (ISACK.equals(resultStatus)){landUI.getPasswdField().setText(null);landUI.getStatLabel().setText("INFO：" + resultInfo + respondStyle + " successfully");} else if(ISNAK.equals(resultStatus)){ //验证成功后输出对应用户名landUI.getPasswdField().setText(null);landUI.getStatLabel().setText("ERROR:" + resultInfo);} else {landUI.getStatLabel().setText("ERROR:can not get respond from server");}} catch(ConnectException e){landUI.getStatLabel().setText("ERROR:Can not connect server");} catch (UnknownHostException e) {e.printStackTrace();} catch (IOException e) {e.printStackTrace();} catch (InterruptedException e) {e.printStackTrace();} finally {try {if (os != null) os.close();if (is != null) is.close();if (s != null)s.close();} catch (IOException e) {e.printStackTrace();}}}}).start();}protected String getSecurityString(String str){Security security = new Security(str);security.securityAlgorithm("MD5");return security.getSecurityResult();}}

// 响应之“重置”package com.net.action;import java.awt.event.ActionEvent;import com.net.ui.LandWindow;public class Cancle extends ActionInterface {public Cancle(LandWindow landUI) {super(landUI);}private void clearPanel() {this.landUI.getUserNameField().setText(null);this.landUI.getPasswdField().setText(null);this.landUI.getCertTextField().setText(null);}@Overridepublic void actionPerformed(ActionEvent ae) {super.actionPerformed(ae);this.clearPanel();this.landUI.refreshCertPicLabel();}}

//响应之“登录”package com.net.action;import java.awt.event.ActionEvent;import com.net.ui.LandWindow;public class Submit extends ActionInterface{public Submit(LandWindow landUI) {super(landUI);this.respondStyle="land";this.landUI.refreshCertPicLabel();}@Overridepublic void actionPerformed(ActionEvent arg0) {super.actionPerformed(arg0);String name = landUI.getUserNameField().getText();String pswd = new String(landUI.getPasswdField().getPassword());String certStr = landUI.getCertTextField().getText();boolean passFlag=true;if (name.length() == 0){landUI.getUserNameLabel().setText("用户名不能为空");passFlag=false;}if (pswd.length() == 0){landUI.getPasswdLabel().setText("密码不能为空");passFlag=false;}if (certStr.length() == 0){landUI.getStatLabel().setText("验证码不能为空");passFlag=false;}if(passFlag){if (certStr.equalsIgnoreCase(landUI.getCertPicStrValue())){this.name=name;this.pswd=getSecurityString(pswd);landUI.getStatLabel().setText("正在登录...");this.start();} else {landUI.getStatLabel().setText("验证码错误");}} else {landUI.refreshCertPicLabel();}}}

//响应之“注册”
package com.net.action;import java.awt.event.ActionEvent;import com.net.ui.LandWindow;public class Register extends ActionInterface{public Register(LandWindow landUI) {super(landUI);this.respondStyle="register";}@Overridepublic void actionPerformed(ActionEvent arg0) {super.actionPerformed(arg0);String name = landUI.getUserNameField().getText();String pswd = new String(landUI.getPasswdField().getPassword());String certStr = landUI.getCertTextField().getText();boolean passFlag=true;if (name.length() == 0){landUI.getUserNameLabel().setText("用户名不能为空");passFlag=false;}if (pswd.length() == 0){landUI.getPasswdLabel().setText("密码不能为空");passFlag=false;}if (certStr.length() == 0){landUI.getStatLabel().setText("验证码不能为空");passFlag=false;}if(passFlag){if (certStr.equalsIgnoreCase(landUI.getCertPicStrValue())){this.name=name;this.pswd=getSecurityString(pswd);landUI.getStatLabel().setText("提交信息中...");this.start();} else {landUI.getStatLabel().setText("验证码错误");}} else {landUI.refreshCertPicLabel();}}}