springboot+webscoket通信功能
1. 背景
项目上需要对某个页面的设计功能(低代码)进行最简单的多人协同,有以下需求点:
(1)第一个进入该设计页面的人给编辑权限,后进入的所有人给在线(可申请编辑)权限
(2)在线人员可申请编辑权限,编辑人员可进行【同意/决绝】操作
(3)申请后,除编辑人和申请人,其余人进入不可申请状态
(4)编辑人同意后,编辑人页面自动保存,并退出编辑,与其他人一起进入在线状态;申请人进入编辑状态
(5)整个过程需要在页面中显示在线人员列表
2. 问题
按理说,这是一个很简单的websocket功能,创建配置类、操作类及通信方法实现业务,然后运行测试就行。如果不出意外的话,马上就出意外了。因为是结合的springboot,使用了@ServerEndpoint的方式注入,但因为项目中存在aop,导致出现了启动注册websocket失败的异常(至于为什么有aop就不行,请自行某度)。
3. 解决方案
3.1. 引入依赖
-
<dependency>
-
<groupId>org.springframework.boot</groupId>
-
<artifactId>spring-boot-starter-websocket</artifactId>
-
</dependency>
3.2. 创建拦截器
如有必要,在握手前、握手后方法中进行业务逻辑编码。
-
package cn.xxx.common.filter;
-
-
import java.util.Map;
-
-
import org.springframework.http.server.ServerHttpRequest;
-
import org.springframework.http.server.ServerHttpResponse;
-
import org.springframework.stereotype.Component;
-
import org.springframework.web.socket.WebSocketHandler;
-
import org.springframework.web.socket.server.HandshakeInterceptor;
-
-
import lombok.extern.slf4j.Slf4j;
-
-
/**
-
* WebSocket拦截器
-
*
-
* @author xxx
-
* @date: 2023-07-12 15:27:16
-
* @Copyright: Copyright (c) 2006 - 2023
-
* @Company: xxx
-
* @Version: V1.0
-
*/
-
-
-
public class CustomInterceptor implements HandshakeInterceptor {
-
-
/**
-
* 握手前
-
*
-
* @param request
-
* @param response
-
* @param wsHandler
-
* @param attributes
-
* @return
-
* @throws Exception
-
*/
-
-
public boolean beforeHandshake(ServerHttpRequest request, ServerHttpResponse response, WebSocketHandler wsHandler,
-
Map<String, Object> attributes) throws Exception {
-
return true;
-
}
-
-
/**
-
* 握手后
-
*
-
* @param request
-
* @param response
-
* @param wsHandler
-
* @param exception
-
*/
-
-
public void afterHandshake(ServerHttpRequest request, ServerHttpResponse response, WebSocketHandler wsHandler,
-
Exception exception) {
-
log.info("握手完成");
-
}
-
}
3.3. 创建推送实体类
-
package cn.xxx.vo.websocket;
-
-
import lombok.Getter;
-
import lombok.Setter;
-
-
/**
-
* 多人协同websocket用户对象
-
*
-
* @author xxx
-
* @date: 2023-07-11 11:29:19
-
* @Copyright: Copyright (c) 2006 - 2023
-
* @Company: xxx
-
* @Version: V1.0
-
*/
-
-
-
public class MultiPersonCollaborationVo {
-
/** 用户id(ip 用户id) */
-
private String id;
-
/** 用户状态:1.编辑;2.在线(可申请编辑);3.已申请;4.正在审批;5.不可操作; */
-
private Integer status;
-
/** 同意状态:1.同意;2.拒绝 */
-
private Integer agree;
-
/** 接收人id */
-
private String recipientId;
-
}
3.4. 创建操作类
-
package cn.xxx.websocket;
-
-
import java.io.IOException;
-
import java.util.ArrayList;
-
import java.util.HashMap;
-
import java.util.Iterator;
-
import java.util.List;
-
import java.util.Map;
-
import java.util.concurrent.ConcurrentHashMap;
-
-
import org.springframework.stereotype.Component;
-
import org.springframework.util.ObjectUtils;
-
import org.springframework.web.socket.CloseStatus;
-
import org.springframework.web.socket.TextMessage;
-
import org.springframework.web.socket.WebSocketSession;
-
import org.springframework.web.socket.handler.TextWebSocketHandler;
-
-
import com.alibaba.fastjson.JSON;
-
-
import cn.xxx.vo.websocket.MultiPersonCollaborationVo;
-
import lombok.extern.slf4j.Slf4j;
-
-
/**
-
* WebSocket操作类
-
*
-
* @author xxx
-
* @date: 2023-07-12 15:24:20
-
* @Copyright: Copyright (c) 2006 - 2023
-
* @Company: xxx
-
* @Version: V1.0
-
*/
-
-
-
public class WebSocketHandler extends TextWebSocketHandler {
-
/** 会话 */
-
private WebSocketSession session;
-
/** 页面id */
-
private String pageId;
-
/** 在线人数 */
-
public static int onlineNumber = 0;
-
-
/** 以页面id为key,WebSocketHandler为对象保存起来 */
-
private static Map<String, WebSocketHandler> clients = new ConcurrentHashMap<String, WebSocketHandler>();
-
/** 在线人员列表 */
-
private List<MultiPersonCollaborationVo> mpcList;
-
-
/**
-
* socket 建立成功事件
-
*
-
* @param session
-
* @throws Exception
-
*/
-
-
public void afterConnectionEstablished(WebSocketSession session) throws Exception {
-
Map<String, Object> paramMap = this.getUriParams(session.getUri().getQuery());
-
String id = paramMap.get("loginip").toString() "@" paramMap.get("id").toString();
-
onlineNumber ;
-
log.info("已连接【会话id=" session.getId() ",用户id=" id "】");
-
this.session = session;
-
this.pageId = paramMap.get("pageId").toString();
-
MultiPersonCollaborationVo mpc = new MultiPersonCollaborationVo();
-
mpc.setId(id);
-
// 如果是第一个用户,则设置为编辑者
-
if (ObjectUtils.isEmpty(this.mpcList)) {
-
this.mpcList = new ArrayList<>();
-
mpc.setStatus(1);
-
} else {
-
// 后面进来的设置为在线
-
mpc.setStatus(2);
-
}
-
this.mpcList.add(mpc);
-
-
try {
-
clients.put(this.pageId, this);
-
// 推送结果
-
Map<String, Object> result = new HashMap<String, Object>();
-
result.put("status", 200);
-
result.put("senderId", null);
-
result.put("msg", null);
-
result.put("object", this.mpcList);
-
this.sendMessageTo(JSON.toJSONString(result), this.pageId);
-
} catch (Exception e) {
-
this.mpcList.remove(mpc);
-
log.error("推送用户列表失败:" e.toString());
-
}
-
-
}
-
-
/**
-
* 接收消息事件
-
*
-
* @param session
-
* @param message
-
* @throws Exception
-
*/
-
-
protected void handleTextMessage(WebSocketSession session, TextMessage message) throws Exception {
-
try {
-
log.info("来自客户端消息:" message "客户端的id是:" session.getId());
-
MultiPersonCollaborationVo param =
-
JSON.parseObject(message.getPayload().toString(), MultiPersonCollaborationVo.class);
-
// 找到发送者、接收者
-
MultiPersonCollaborationVo sender = null;
-
MultiPersonCollaborationVo recipient = null;
-
for (MultiPersonCollaborationVo mpc : this.mpcList) {
-
if (mpc.getId().equals(param.getId())) {
-
sender = mpc;
-
continue;
-
}
-
if (mpc.getId().equals(param.getRecipientId())) {
-
recipient = mpc;
-
continue;
-
}
-
if (null != sender && null != recipient) {
-
break;
-
}
-
}
-
-
// 推送结果
-
Map<String, Object> result = new HashMap<String, Object>();
-
int status = 500;
-
String senderId = null;
-
String msg = null;
-
if (null == sender) {
-
msg = "发送者为空!";
-
} else if (null != sender && null == recipient) {
-
senderId = sender.getId();
-
msg = "接收者不在线!";
-
} else if (null != sender && null != recipient && sender.getId().equals(recipient.getId())) {
-
senderId = sender.getId();
-
msg = "不能推送消息给自己!";
-
} else {
-
// 判断接收状态
-
// 发送人为编辑人
-
if (1 == param.getStatus().intValue()) {
-
// 将所有用户状态设置为在线
-
for (MultiPersonCollaborationVo mpc : this.mpcList) {
-
mpc.setStatus(2);
-
}
-
// 判断审批是否同意
-
if (1 == param.getAgree().intValue()) {
-
// 同意时,设置接收人为编辑
-
recipient.setStatus(1);
-
} else if (2 == param.getAgree().intValue()) {
-
// 拒绝时,设置接收人为申请被拒绝
-
recipient.setStatus(2);
-
msg = "您的申请被拒绝了!";
-
}
-
senderId = recipient.getId();
-
} else if (3 == param.getStatus().intValue()) {
-
// 发送人为申请编辑
-
// 将所有用户状态设置为不可编辑
-
for (MultiPersonCollaborationVo mpc : this.mpcList) {
-
mpc.setStatus(5);
-
}
-
// 设置发送人为已申请
-
sender.setStatus(3);
-
// 设置接收人为正在审批
-
recipient.setStatus(4);
-
senderId = sender.getId();
-
}
-
status = 200;
-
}
-
result.put("status", status);
-
result.put("senderId", senderId);
-
result.put("msg", msg);
-
result.put("object", this.mpcList);
-
sendMessageTo(JSON.toJSONString(result), this.pageId);
-
} catch (Exception e) {
-
log.info("发生了错误了");
-
}
-
}
-
-
/**
-
* socket 断开连接时
-
*
-
* @param session
-
* @param status
-
* @throws Exception
-
*/
-
-
public void afterConnectionClosed(WebSocketSession session, CloseStatus status) throws Exception {
-
Map<String, Object> paramMap = this.getUriParams(session.getUri().getQuery());
-
String id = paramMap.get("loginip").toString() "@" paramMap.get("id").toString();
-
onlineNumber--;
-
if (!ObjectUtils.isEmpty(this.mpcList)) {
-
Iterator<MultiPersonCollaborationVo> mpcIt = this.mpcList.iterator();
-
while (mpcIt.hasNext()) {
-
if (mpcIt.next().getId().equals(id)) {
-
mpcIt.remove();
-
}
-
}
-
}
-
-
try {
-
// 如果用户列表为空,则删除
-
if (ObjectUtils.isEmpty(this.mpcList)) {
-
clients.remove(this.pageId);
-
log.info(this.pageId "所有人员已退出");
-
} else {
-
// 推送结果
-
Map<String, Object> result = new HashMap<String, Object>();
-
result.put("status", 200);
-
result.put("senderId", null);
-
result.put("msg", null);
-
result.put("object", this.mpcList);
-
sendMessageTo(JSON.toJSONString(result), this.pageId);
-
log.info("用户【" id "】退出,当前在线人数" onlineNumber);
-
}
-
} catch (IOException e) {
-
log.info("推送在线列表异常:" e.toString());
-
}
-
}
-
-
/**
-
* 获取uri的参数
-
*
-
* @author: caip
-
* @date: 2023-07-12 16:18:26
-
* @param param
-
* @return
-
*/
-
private Map<String, Object> getUriParams(String param) {
-
Map<String, Object> result = new HashMap<>();
-
String[] array = param.split("&");
-
for (String s : array) {
-
result.put(s.split("=")[0], s.split("=")[1]);
-
}
-
return result;
-
}
-
-
/**
-
* 推送消息到
-
*
-
* @author: caip
-
* @date: 2023-07-11 10:23:42
-
* @param message
-
* @param ToPageId
-
* @throws IOException
-
*/
-
public void sendMessageTo(String message, String toPageId) throws IOException {
-
for (WebSocketHandler item : clients.values()) {
-
if (item.pageId.equals(toPageId)) {
-
item.session.sendMessage(new TextMessage(message));
-
break;
-
}
-
}
-
}
-
}
3.5. 创建配置类
-
package cn.xxx.common.config;
-
-
import org.springframework.context.annotation.Bean;
-
import org.springframework.context.annotation.Configuration;
-
import org.springframework.web.socket.config.annotation.EnableWebSocket;
-
import org.springframework.web.socket.config.annotation.WebSocketConfigurer;
-
import org.springframework.web.socket.config.annotation.WebSocketHandlerRegistry;
-
import org.springframework.web.socket.server.standard.ServletServerContainerFactoryBean;
-
-
import cn.xxx.common.filter.CustomInterceptor;
-
import cn.xxx.websocket.WebSocketHandler;
-
import lombok.RequiredArgsConstructor;
-
-
/**
-
* WebSocket配置类
-
*
-
* @author xxx
-
* @date: 2023-07-11 08:51:14
-
* @Copyright: Copyright (c) 2006 - 2023
-
* @Company: xxx
-
* @Version: V1.0
-
*/
-
-
-
-
public class WebSocketConfig implements WebSocketConfigurer {
-
private final WebSocketHandler httpAuthHandler;
-
private final CustomInterceptor customInterceptor;
-
-
-
public void registerWebSocketHandlers(WebSocketHandlerRegistry registry) {
-
registry.addHandler(httpAuthHandler, "ws").addInterceptors(customInterceptor).setAllowedOrigins("*");
-
}
-
-
-
public ServletServerContainerFactoryBean createWebSocketContainer() {
-
ServletServerContainerFactoryBean container = new ServletServerContainerFactoryBean();
-
container.setMaxSessionIdleTimeout(600000L);
-
return container;
-
}
-
}
4. 测试结果
这篇好文章是转载于:学新通技术网
- 版权申明: 本站部分内容来自互联网,仅供学习及演示用,请勿用于商业和其他非法用途。如果侵犯了您的权益请与我们联系,请提供相关证据及您的身份证明,我们将在收到邮件后48小时内删除。
- 本站站名: 学新通技术网
- 本文地址: /boutique/detail/tanhgcccfc
系列文章
更多
同类精品
更多
-
photoshop保存的图片太大微信发不了怎么办
PHP中文网 06-15 -
Android 11 保存文件到外部存储,并分享文件
Luke 10-12 -
《学习通》视频自动暂停处理方法
HelloWorld317 07-05 -
word里面弄一个表格后上面的标题会跑到下面怎么办
PHP中文网 06-20 -
photoshop扩展功能面板显示灰色怎么办
PHP中文网 06-14 -
微信公众号没有声音提示怎么办
PHP中文网 03-31 -
excel下划线不显示怎么办
PHP中文网 06-23 -
怎样阻止微信小程序自动打开
PHP中文网 06-13 -
excel打印预览压线压字怎么办
PHP中文网 06-22 -
TikTok加速器哪个好免费的TK加速器推荐
TK小达人 10-01