TCP传输中使用AES加密和gizp压缩（2）--封装TcpUtil，封装后实现登陆

一、TcpUtil

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/** *@authorqiwenming *@time2015年5月31日上午4:24:02 *@说明TcpUtil */ publicclassTcpUtil{ privateOutputStreamoutputStream; privateInputStreaminputStream; privateSocketsocket; privateProgressDialogpd;//进度提示框 privateStringTAG=TcpUtil.class.getName(); /** *实体类转为json * *@parambeanClass *@return */ public<T>StringgetSendData(TbeanClass){ if(beanClass==null){ return""; } Tbean=beanClass; Gsongson=newGson(); Stringstr=gson.toJson(bean); returnstr; } /** *拼接请求字符串 * *@parambeanClass *@paramserverName *@return */ public<T>StringgetRequestString(TbeanClass,StringserverName){ StringBuildersb=newStringBuilder(); sb.append("{"); //header拼装 sb.append("\"header\":{"); sb.append("\"service_name\":\""+serverName+"\""); sb.append("},"); //body拼装 sb.append("\"body\":"); sb.append(getSendData(beanClass)); sb.append("}"); returnsb.toString(); } /** *@paramcontext *@paramMessage *提示框信息 *@paramisShowDialog *是否显示提示框 *@paramcallBack *回调 *@parambeanClass *@paramserviceName *调用的服务器名 */ public<T>voidrequestData(finalContextcontext,finalStringmessage, booleanisShowDialog,finalTcpRequsetCallBackcallBack, TbeanClass,StringserviceName){ //创建一个AsyncTask去这行请求为什么 newMyTast<T>(context,message,isShowDialog,callBack,beanClass,serviceName).execute(""); } /** *发送请求数据 * *@paramrequestStr *请求数据 *@throwsException *异常 */ publicvoidsend(StringrequestStr)throwsException{ if(outputStream==null){ outputStream=socket.getOutputStream(); } //编码 byte[]encryptBytes=AESUtil.encrypt(requestStr.getBytes()); //压缩 byte[]compressBytes=GZipUtils.compress(encryptBytes); //写入数据流操作 DataOutputStreamdos=newDataOutputStream(outputStream); dos.writeInt(compressBytes.length); dos.write(compressBytes); } /** *接收数据 * *@return服务器返回的字符数据 *@throwsException */ publicStringreceive()throwsException{ if(inputStream==null){ inputStream=socket.getInputStream(); } //获取输入流读取服务端传递过来的流 DataInputStreamdin=newDataInputStream(inputStream); intavailableLen=din.readInt();//阻塞方法 byte[]data=receiveBytes(din,availableLen);//读取字节数据 byte[]uncompress=GZipUtils.decompress(data); byte[]decrypt=AESUtil.decrypt(uncompress); returnnewString(decrypt,"UTF-8"); } /** *得到接收的byte数组数据 * *@paramis *输入流（服务端传递过来的数据） *@paramlength *读取的长度 *@return字节数组 *@throwsIOException */ privatebyte[]receiveBytes(InputStreamis,intlength)throwsIOException{ inttmpLength=1024;//每次读取最大缓冲区大小 byte[]ret=newbyte[length]; intreaded=0,offset=0,left=length; byte[]bs=newbyte[tmpLength]; while(left>0){ try{ //读取数据到bs数据中，读取的长度返回到readed中 readed=is.read(bs,0,Math.min(tmpLength,left)); if(readed==-1)//读取结束 break; System.arraycopy(bs,0,ret,offset,readed);//copy数据 }finally{ offset+=readed;//更新读取的位置 left-=readed;//读取的长度减小 } } returnret; } /** *关闭流 * *@throwsIOException */ publicvoiddisconnect()throwsIOException{ if(outputStream!=null){ outputStream.close(); } if(inputStream!=null){ inputStream.close(); } if(socket!=null&&!socket.isClosed()){ socket.shutdownInput(); socket.shutdownOutput(); socket.close(); } } /** *@authorqiwenming *@param<T> *@creation2015-5-19下午3:39:56 *@instruction网络请求（参数，进度,结果） */ classMyTast<T>extendsAsyncTask<String,Integer,NetResponse>{ privateContextcontext; privateStringmessage; privatebooleanisShowDialog; privateTcpRequsetCallBackcallBack; privateTbeanClass; privateStringserviceName; publicMyTast(finalContextcontext,finalStringmessage, booleanisShowDialog,TcpRequsetCallBackcallBack,TbeanClass, StringserviceName){ this.context=context; this.message=message; this.isShowDialog=isShowDialog; this.callBack=callBack; this.beanClass=beanClass; this.serviceName=serviceName; } /** *请求数据前 */ protectedvoidonPreExecute(){ if(!ConnectUtils.isNetworkConnected(context)){ Toast.makeText(context,"网络未连接，请检查网络",0).show(); return; } if(isShowDialog){//判断是否需要显示dialog pd=newProgressDialog(context); if(this.message==null){//判断要显示的文字 pd.setMessage("正在加载数据"); }else{ pd.setMessage(message); } pd.show(); } } /** *请求数据中 */ protectedNetResponsedoInBackground(String...params){ NetResponsenrp=newNetResponse(); try{ socket=newSocket("192.168.1.106",8888); socket.setSoTimeout(10*1000); //这里不使用params使用他会加[]所以不用 StringrequestMsg=getRequestString(beanClass,serviceName); if(MyApplication.isShowLog){//如果需要打印日志的话打印数据 Log.i(serviceName,"请求数据###"+requestMsg); } send(requestMsg); StringrespMsg=receive();//接收数据 nrp.status=ResponseStatus.OK; nrp.responseMsg=respMsg; if(MyApplication.isShowLog){//如果需要打印日志的话打印数据 Log.i(serviceName,"响应数据"+respMsg); } }catch(IOExceptione){ nrp.status=ResponseStatus.ERR; nrp.responseMsg=TAG+"---doInBackground():IOException:请求或者接收数据时候出问题"; nrp.exception=e; //e.printStackTrace(); }catch(Exceptione){ nrp.status=ResponseStatus.ERR; nrp.responseMsg=TAG+"---doInBackground():IOException:请求或者接收数据时候出问题"; nrp.exception=e; //e.printStackTrace(); }finally{ //关闭对话框 if(pd!=null&&pd.isShowing()){ pd.dismiss(); } try{ if(socket!=null&&!socket.isClosed()){ socket.shutdownInput(); socket.shutdownOutput(); socket.close(); socket=null; } if(outputStream!=null){ outputStream.close(); } if(inputStream!=null){ inputStream.close(); } }catch(IOExceptione){ //关闭流除了问题 //e.printStackTrace(); nrp.status=ResponseStatus.ERR; nrp.responseMsg=TAG+"---doInBackground():IOException:关闭流除了问题"; nrp.exception=e; // callBack.onErr(nrp); } } returnnrp; } /** *请求数据结束后 */ protectedvoidonPostExecute(NetResponseresult){ if(ResponseStatus.OK==result.status){//请求成功 callBack.onRequestSuccess(result.responseMsg); }else{//请求失败 callBack.onErr(result); } } } }

TcpRequsetCallBack

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/** *@authorqiwenming *@time2015年5月30日下午11:35:41 *@说明Tcp请求的回调类 */ publicabstractclassTcpRequsetCallBack<TR>{ // privateBaseRspBean<TR>baseRsp; privateClass<TR>beanClass; privateStringTAG=TcpRequsetCallBack.class.getName(); /** *构造函数 *@param<TR> *@parambeanClass */ publicTcpRequsetCallBack(Class<TR>beanClass){ this.beanClass=beanClass; } /** *请求成功的方法 *@paramresponseMsg */ public<T>voidonRequestSuccess(StringresponseMsg){ Gsongson=newGson(); try{ TRbean=gson.fromJson(responseMsg,beanClass); if(beaninstanceofBaseRespBean){ BaseRespBeanbnBean=(BaseRespBean)bean; if(!"0000".equals(bnBean.result_code)){//这里的判断根据规定的响应码来判断 onfail(bnBean.result_code,bnBean.result_msg); return; } onSuccess(bean); } }catch(JsonSyntaxExceptione){ NetResponsenetRspJson=newNetResponse(); netRspJson.exception=e; netRspJson.responseMsg=TAG+":onRequestSuccess():JsonSyntaxException:响应数据转换json的时候处理问题"; onErr(netRspJson); } }; /** *得到正确的数据 *@paramheader *@paramresultMsg *@paramresultCode */ publicabstractvoidonSuccess(TRbean); /** *数据错误 *@paramfailDesc错误信息 *@paramresult_code错误码 */ publicvoidonfail(Stringresult_code,StringfailDesc){ Log.e(TAG+".onfail","请求数据失败：result_code："+result_code+"failDesc:"+failDesc); }; /** *请求报错 *@paramnetQuest */ publicvoidonErr(NetResponsenetRsp){ Log.e(TAG+".onErr",netRsp.responseMsg); netRsp.exception.printStackTrace(); }; }

BaseRespBean

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/** *@authorqiwenming *@time2015年5月31日上午12:11:18 *@说明响应基类 */ public class BaseRespBean implements Serializable{ public Stringresult_code; public Stringresult_msg; }

二、登陆中客户端重要涉及的类

1.LoginReqBean

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/** *@authorqiwenming *@time2015年5月30日下午11:57:40 *@说明登陸請求的javabean */ public class LoginReqBean implements Serializable{ public Stringusername; public Stringpassword; }

2.BaseRespBean

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/** *@authorqiwenming *@time2015年5月31日上午12:11:18 *@说明响应基类 */ public class BaseRespBean implements Serializable{ public Stringresult_code; public Stringresult_msg; }

3.LoginRespBean

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/** *@authorqiwenming *@time2015年5月31日上午12:10:41 *@说明登陆响应类 */ public class LoginRespBean extends BaseRespBean{ public LoginDatadata; public class LoginData implements Serializable{ public StringnickName; public int age; } }

三、登陆中客户端登陆方法

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/** *登陆 * *@paramv */ public void toLogin(Viewv){ Stringname=nameEdt.getText().toString().trim(); Stringpwd=pwdEdt.getText().toString().trim(); if ( "" .equals(name)){ Toast.makeText( this , "用户名为空" , 0 ).show(); return ; } if ( "" .equals(name)){ Toast.makeText( this , "密码为空" , 0 ).show(); return ; } LoginReqBeanbean= new LoginReqBean(); bean.username=name; bean.password=pwd; new TcpUtil().requestData( this , "登陆请求中..." , true , new TcpRequsetCallBack<LoginRespBean>(LoginRespBean. class ){ @Override public void onSuccess(LoginRespBeanbean){ //登陆成功 Intenti= new Intent(MainActivity. this ,HomeActivity. class ); i.putExtra( "loginbean" ,bean); startActivity(i); MainActivity. this .finish(); } @Override public void onfail(Stringresult_code,StringfailDesc){ //登陆失败 super .onfail(result_code,failDesc); Toast.makeText(MainActivity. this ,result_code+ ":" +failDesc, 0 ).show(); } },bean, "loginServer" ); }

四、java控制台程序模拟的后台主要方法

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/** *@authorxiaoming *@time2015年5月30日下午5:01:01 *@说明AesDemo */ public class AesDemo{ public static void main(String[]args){ test(); } public static void test(){ ServerSocketss= null ; try { ss= new ServerSocket( 8888 ); while ( true ){ final Sockets=ss.accept(); new Thread( new Runnable(){ public void run(){ try { DataInputStreamdis= new DataInputStream( s.getInputStream()); //读取数据 byte []recData=( new TcpUtil()).readData(dis); System.out.println( "长度：" +recData.length); ////解压缩 byte []uncompress=GZipUtils.decompress(recData); //解密 byte []decrypt=AESUtil.decrypt(uncompress); //======================响应部分================================ DataOutputStreamdos= new DataOutputStream( s.getOutputStream()); byte []respData=handlerData(decrypt); //加密 byte []encrypt=AESUtil.encrypt(respData); ////压缩 byte []compress=GZipUtils.compress(encrypt); dos.writeInt(compress.length); //把数据的长度写过去 dos.write(compress); dos.flush(); s.shutdownOutput(); } catch (InvalidCipherTextExceptione){ e.printStackTrace(); } catch (IOExceptione){ e.printStackTrace(); } catch (Exceptione){ e.printStackTrace(); } } }).start(); } } catch (Exceptione){ e.printStackTrace(); } finally { try { //关闭资源 if (ss!= null ){ ss.close(); } } catch (IOExceptione){ e.printStackTrace(); } } } /** *实体类转为json * *@parambeanClass *@return */ public static <T>StringgetSendData(TbeanClass){ if (beanClass== null ){ return "" ; } Tbean=beanClass; Gsongson= new Gson(); Stringstr=gson.toJson(bean); return str; } /** *处理数据 */ public static byte []handlerData( byte []decrypt){ StringreqMsg= new String(decrypt); System.out.println( "请求的数据:" +reqMsg); Gsongson= new Gson(); //获得数据 LoginReqBeanbean=gson.fromJson(reqMsg,LoginReqBean. class ); LoginRespBeanrespBean= new LoginRespBean(); if ( null !=bean){ if ( "loginServer" .equals(bean.header.service_name)){ if ( "xiaoming" .equals(bean.body.username)){ if ( "520" .equals(bean.body.password)){ respBean.result_code= "0000" ; respBean.result_msg= "登陆成功" ; respBean.data.nickName= "小明" ; respBean.data.age= 24 ; } else { respBean.data= null ; respBean.result_code= "1001" ; respBean.result_msg= "密码错误" ; } } else { respBean.data= null ; respBean.result_code= "1002" ; respBean.result_msg= "用户名错误" ; } } else { respBean.data= null ; respBean.result_code= "1003" ; respBean.result_msg= "没有这个服务名" ; } } else { respBean.data= null ; respBean.result_code= "1004" ; respBean.result_msg= "数据为空" ; } StringrespMsg=getSendData(respBean); System.out.println( "响应的数据:" +respMsg); return respMsg.getBytes(); } }

五、主要效果

源码下载