美文网首页
基于XMPP实现(简单搭建一)

基于XMPP实现(简单搭建一)

作者: Leo乀垚 | 来源:发表于2017-08-22 20:31 被阅读0次

准备工作:开启ChatSever服务 ——— python 文件名(终端输入: cd phthon文件路径)

first Step:

1、简单聊天室(socket):

*实现登陆功能:

http://192.168.1.1/login实现登陆的功能 ①username ②password 传递给服务器

socket:192.168.1.1:123456(端口号)

登陆指令:iam:zhangsan

2、实现发送聊天信息的功能

发送聊天数据指令:msg:******

second Step:

①连接实现:

iOS里实现socket的连接,使用C语言

1.与服务器通过三次握手建立连接:

- (void)connectToServer:(id)sender {

NSString *host = @"127.0.0.1";

int port = 12345;

//全局队列

//创建一个socket对象

GCDAsyncSocket *socket = [[GCDAsyncSocket alloc] initWithDelegate:self delegateQueue:dispatch_get_global_queue(DISPATCH_QUEUE_PRIOROTY_DEFAULT, 0)];

//主队列

GCDAsyncSocket *socket = [[GCDAsyncSocket alloc] initWithDelegate:self delegateQueue:dispatch_get_main_queue()];

//连接

NSError *error = nil;

[socket connectToHost:host onPort:port error:&error];

if (error) {

NSLog(@"%@", error);

}

}

2.定义输入输出流

CFReadStreamRef readStream;

CFWriteStreamRef writeStream;

3.分配输入输出流的内存空间

CFStreamCreatePairWithSocketToHost(NULL, (_bridge CFStringRef)host, port(端口号), &readStream, &writeStream);

4.把C语言的输入输出流转成OC对象

在外面写大括号里的

{

NSInputStream *_inputStream;

NSOutputStream *_outStream;

}

_inputStream = (_bridge NSInputStream *)readStream;

_outStream = (_bridge NSOutStream *)writeStream;

5.设置代理, 监听数据接收的状态(NSStreamDelegate):

_outputStream.delegate = self;

_inputStream.delegate = self;

把输入输出流添加到主运行循环(主运行循环是监听网络状态的)

[_outputStream scheduleInRunLoop:[NSRunLoop mainRunLoop] forMode:NSDefauleRunLoopMode];

[_inputStream scheduleInRunLoop:[NSRunLoop mainRunLoop] forMode:NSDefauleRunLoopMode];

6.打开输入输出流

[_inputStream open];

[_outputStream open];

7.实现代理协议

- (void)Stream:(NSStream *)aStream handeleEvent:(NSStreamEvent)eventCode{

swith (eventCode) {

case NSStreamEventOpenCompleted:

NSLog(@"成功连接建立,形成输入输出流的传输通道”);

break;

case NSStreamEventHasBytesAvailable:

NSLog(@"有数据可读”);

[self readData];

break;

case NSStreamEventHasSpaceAvailable:

NSLog(@"可以发送数据"):

break;

case NSStreamEventErrorOccurred:

NSLog(@"有错误发生,连接失败");

break;

case NSStreamEventEndEncountered:

NSLog(@"正常的断开连接");

//把输入输出流关闭, 并且从主运行循环中移除

[_inputStream close];

[_outputStream close];

[_inputStream removeFromRunLoop:[NSRunLoop mainRunLoop] forMode:NSDefaultRunLoopMode];

[_outputStream removeFromRunLoop:[NSRunLoop mainRunLoop] forMode:NSDefaultRunLoopMode];

break;

default:

breeak;

}

}

登陆

- (void)loginClick:(id)sender {

发送登陆请求,输出流(给数据的)

//接登陆的指令 iam:zhangsan

NSString *loginStr = @"iam:zhangsan";

//self sendDataToHost:loginStr];

//②:使用AsyncSocket

//-1代表 不设置超时

[_socket writeData:[loginStr dataUsingEncoding:NSUTF8StringEncoding] withTimeout:-1 tag:101];

}

读取服务器返回的数据

- (void)readData {

//定义缓冲区 (只能存储1024字节)

uint8_t buf[1024];

//读取数据

//len为服务器读取到的实际字节数

NSInteger len = [_inputStream read:buf maxLength:sizeof(buf)];

//把缓冲区的实际字节数转成字符串

NSString *receiveStr = [[NSString alloc] initWithBytes:buf lenght:len encoding:NSUTF8StringEncoding];

NSLog(@"%@", receiveStr);

//把数据源添加进数组中

[self.msgs addObject:receiveStr];

[self.tableView reloadData];

}

Third Step:

首先绘制聊天界面(把底部输入栏的约束拖过来:bottomContraint), 之后在control中编写键盘监听:

[[NSNotificationCenter defaultCenter] addObserver: self selecter:@selector(kbWillShow:) name:UIKeyboardWillShowNotification object:nil];

[[NSNotificationCenter defaultCenter] addObserver: self selecter:@selector(kbWillHide:) name:UIKeyboardWillHideNotification object:nil];

②:实现监听方法

键盘将要显示:

- (void)kbWillShow:(NSNotification *)noti {

//显示的时候将要改变bottomContraint

//获取键盘高度

CGFloat kbHeight = [noti.userInfo[UIKeyboardFrameEndUserInfoKey]CGRectVaule].size.height;

self.botttomConstraint.constant = kbHeight;

}

//设置信息显示的tableView的代理, 控制键盘的消失

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {

reurn self.msgs.count;

}

- (UITableViewCell *)tableView:(UITabelView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

UITableViewCell *cell = [tableview dequeueReusableCellWithIdentifier:@"ChatCell"];

//显示信息

cell.textLable.text = self.msgs[indexPath.row];

}

//将要开始拖动的时候,如果键盘显示就回收

- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView {

//隐藏键盘

[self.view endEditing:YES];

}

键盘将要消失:

- (void)kbWillHide:(NSNotification *)noti {

}

//把监听移除

- (void)dealloc {

[NSNotifiactionCenter dafaultCenter] removeObserver:self];

}

//实现信息的发送(UITextFieldDelegate):

- (BOOL)textFieldShouldReturn:(UITextField *)textField {

//发送信息

//1.有数据发送

NSString *txt = textField.text;

if (txt.length == 0) {

return YES;

}

NSString *msg = [@"msg:" stringByAppendingString:txt];

[self sendDataToHost:msg];

return YES;

}

//发送数据

- (void)sendDataToHost:(NSString *)str {

//uint8_t * 代表字符数组

// NSData *data = [str dataUsingEncoding:NSUTF8StringEncoding];

//[_outputStream write:data.bytes maxLength:data.length];

//②:

[_socket writeData:[str dataUsingEncoding:NSUTF8StringEncoding] withTimeout:-1 tag:102];

}

fourth Step:实现聊天信息的展示

①:定义一个数组(msgs),存储信息

实现asyncSocket(添加文件GCDAsyncSocket): 在建立连接的时候添加异步

遵循socketDelegate协议,

①:连接成功的代理方法

- (void)socket:(GCDAsyncSocket *)sock didConnectToHost:(NSString *)host port:(uint16_t)port{

NSLog(@"%s", __func__);

}

②:断开连接的代理方法

- (void)socketDidDiscommect:(GCDAsyncSocket *)sock withError:(NSError *

err {

if(err) {

NSLog(@"连接失败“);

}else {

NSLog(@"正常断开”);

}

}

④:数据发送成功

- (void)socket:(GCDAsyncSocket *)sock didWriteDataWithTag:(long)tag {

//发送完数据手动读取

[sock readDataWithTimeout:-1 tag:tag];

}

③:读取数据 (在子线程调用的, 因为是全局队列,刷新有延迟; 如果是在主队列中,就会立即显示)

- (void)socket:(GCDAsyncSocket *)sock didReadData:(NSData *)data withTag:(long)tag {

NSString *receiveStr = [[NSString alloc] initWithData:data         encoding:NSUTF8StringEncoding];

if (tag == 101) {//登陆tag

}  else if (tag == 102) {//聊天数据

[sefl.msgs addObject:receiverStr];

//刷新表格

[self.tabelView reloadData];

}

}

相关文章

网友评论

      本文标题:基于XMPP实现(简单搭建一)

      本文链接:https://www.haomeiwen.com/subject/hjfrdxtx.html