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09-09-netty发送系统消息

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青云
2025-09-09 17:08:39 +08:00
parent abad289c2b
commit 9d682a3290
2 changed files with 104 additions and 40 deletions
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127
xinnengyuan/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/websocket/ChatServerHandler.java
View File

@ -80,6 +80,7 @@ public class ChatServerHandler extends SimpleChannelInboundHandler<TextWebSocket
}
// 处理用户认证事件
@Transactional
@Override
public void userEventTriggered(ChannelHandlerContext ctx, Object evt) throws Exception {
if (evt instanceof WebSocketServerProtocolHandler.HandshakeComplete) {
@ -117,46 +118,49 @@ public class ChatServerHandler extends SimpleChannelInboundHandler<TextWebSocket
channelGroup.add(channel);
//构建推送消息
List<Long> userIds = new ArrayList<>();
//类型转换
for (String s : onlineUserList) {
userIds.add(Long.parseLong(s));
}
// List<Long> userIds = new ArrayList<>();
// //类型转换
// for (String s : onlineUserList) {
// userIds.add(Long.parseLong(s));
// }
// List<UserDTO> userDTOS = sysUserService.selectListByIds(userIds);
//构建各个聊天房间未读 数量
LambdaQueryWrapper<ChatGroup> queryWrapper = new LambdaQueryWrapper<>();
queryWrapper.like(ChatGroup::getMembers, loginUser.getUserId()+",").or().like(ChatGroup::getMembers,loginUser.getUserId()+"]");
//拿到该用户的房间列表
//拿到该用户所参与的房间列表
List<ChatGroup> chatGroups = chatGroupService.list(queryWrapper);
boolean isHaveSystemRoom = false;
if (chatGroups != null && !chatGroups.isEmpty()) {
// List<HashMap<String, Object>> roomCounts = new ArrayList<>();
HashMap<String, Object> roomCounts = new HashMap<>();
for (ChatGroup chatGroup : chatGroups) {
LambdaQueryWrapper<ChatHistory> queryWrapper1 = new LambdaQueryWrapper<>();
queryWrapper1.eq(ChatHistory::getGeterId, chatGroup.getId());
queryWrapper1.ne(ChatHistory::getSenderId, loginUser.getUserId());
queryWrapper1.eq(ChatHistory::getIsRead, "1");
List<ChatHistory> list = chatHistoryService.list(queryWrapper1);
LambdaQueryWrapper<ChatHistory> historyLambdaQueryWrapper = new LambdaQueryWrapper<>();
historyLambdaQueryWrapper.eq(ChatHistory::getGeterId, chatGroup.getId());
historyLambdaQueryWrapper.ne(ChatHistory::getSenderId, loginUser.getUserId());
historyLambdaQueryWrapper.eq(ChatHistory::getIsRead, "1");
List<ChatHistory> list = chatHistoryService.list(historyLambdaQueryWrapper);
if (list != null && !list.isEmpty()) {
// HashMap<String, Object> map = new HashMap<>();
roomCounts.put(chatGroup.getId().toString(), list.size());
// roomCounts.add(map);
}
//在遍历的同时寻找是否有系统消息房间
if (chatGroup.getMembers().contains("system")){
isHaveSystemRoom = true;
}
}
JSONObject message = new JSONObject();
// message.put("type", "2");
// message.put("onLineUser", userDTOS);
message.put("type", "3");
message.put("unReadCount", roomCounts);
log.info("发送所有未读消息:{}",message);
// channelGroup.writeAndFlush(new TextWebSocketFrame(message.toJSONString()));
sendMessage(ctx, message.toJSONString());
}
//认证完成后开始构建系统消息房间 判断是否有系统消息房间 没有则增加
if (!isHaveSystemRoom){
ChatGroup chatGroup = new ChatGroup();
chatGroup.setType(String.valueOf(0));
chatGroup.setMembers("[system, "+loginUser.getUserId()+"]");
chatGroupService.save(chatGroup);
}
}
}
super.userEventTriggered(ctx, evt);
}
@ -249,16 +253,16 @@ public class ChatServerHandler extends SimpleChannelInboundHandler<TextWebSocket
//要从IDS中去掉自己ID防止发送自己消息
ids.remove(Long.valueOf(channelUserMap.get(ctx)));
for (Long id : ids) {
//只要发送一条数据，就要给接收方推送所有未读消息
if (!userRoomCountMap.containsKey(id + "+" + RoomId)) {
userRoomCountMap.put(id + "+" + RoomId, 1);
}else {
userRoomCountMap.put(id + "+" + RoomId, userRoomCountMap.get(id + "+" + RoomId) + 1);
}
//通过每个用户ID拿到该用户所有通道实例
List<ChannelHandlerContext> channelHandlerContexts = userChannelMap.get(id.toString());
//如果满足则说明用户在线
if (channelHandlerContexts != null && !channelHandlerContexts.isEmpty()) {
//只要发送一条数据，就要给接收方推送所有未读消息
if (!userRoomCountMap.containsKey(id + "+" + RoomId)) {
userRoomCountMap.put(id + "+" + RoomId, 1);
}else {
userRoomCountMap.put(id + "+" + RoomId, userRoomCountMap.get(id + "+" + RoomId) + 1);
}
//所有房间的未读消息数
jsonObject.put("countValue", JsonUtils.toJsonString(userRoomCountMap));
//给每个通道发送对应消息
@ -285,12 +289,12 @@ public class ChatServerHandler extends SimpleChannelInboundHandler<TextWebSocket
}
}else if ("1".equals(type)){
log.info("收到客户端确认消息：{}", jsonObject);
//将数据库中该消息的已读状态改为已读
//前端接收方收到消息返回1 说明此时处于聊天框内 可以清空该房间的所有未读消息 将此房间聊天记录全部已读
LambdaQueryWrapper<ChatHistory> lambdaQueryWrapper = new LambdaQueryWrapper<>();
lambdaQueryWrapper
.eq(ChatHistory::getSenderId,jsonObject.get("from"))
.eq(ChatHistory::getGeterId,jsonObject.get("roomId"))
.eq(ChatHistory::getMessage,jsonObject.get("message"))
// .eq(ChatHistory::getMessage,jsonObject.get("message"))
.eq(ChatHistory::getIsRead,"1");
List<ChatHistory> list = chatHistoryService.list(lambdaQueryWrapper);
if (list != null && !list.isEmpty()){
@ -300,13 +304,19 @@ public class ChatServerHandler extends SimpleChannelInboundHandler<TextWebSocket
}
chatHistoryService.updateBatchById( list);
//将未读消息数减一
if(userRoomCountMap.get(channelUserMap.get(ctx) + "+" + jsonObject.get("roomId")) > 0) {
userRoomCountMap.put(channelUserMap.get(ctx) + "+" + jsonObject.get("roomId"), userRoomCountMap.get(channelUserMap.get(ctx) + "+" + jsonObject.get("roomId")) - 1);
}else {
userRoomCountMap.put(channelUserMap.get(ctx) + "+" + jsonObject.get("roomId"), 0);
}
//将该房间未读消息 清空
userRoomCountMap.put(channelUserMap.get(ctx) + "+" + jsonObject.get("roomId"), 0);
// if(userRoomCountMap.get(channelUserMap.get(ctx) + "+" + jsonObject.get("roomId")) != null && userRoomCountMap.get(channelUserMap.get(ctx) + "+" + jsonObject.get("roomId")) > 0) {
// userRoomCountMap.put(channelUserMap.get(ctx) + "+" + jsonObject.get("roomId"), userRoomCountMap.get(channelUserMap.get(ctx) + "+" + jsonObject.get("roomId")) - 1);
// }else {
// userRoomCountMap.put(channelUserMap.get(ctx) + "+" + jsonObject.get("roomId"), 0);
// }
}
// else if ("2".equals(type)){
// //前端点击某个聊天房间进入时 仅需发送type2 清空该房间的未读消息数
// userRoomCountMap.put(channelUserMap.get(ctx) + "+" + jsonObject.get("roomId"), 0);
// //将该房间对应消息都置为已读
// }
}
// 处理异常
@ -330,7 +340,52 @@ public class ChatServerHandler extends SimpleChannelInboundHandler<TextWebSocket
//通过userId进行发送消息
private void sendMessageByUserId(Long userId,String message){
@Transactional
public void sendSystemMessageToUser(Long userId, String message){
// /现在已用type：0 1 3 4用于服务端发送消息到系统消息房间
// {
// "type":"4",
// "message": "testing"
// }
JSONObject jsonObject = new JSONObject();
jsonObject.put("type", "4");
jsonObject.put("message", message);
//通过userId拿到该用户所有通道实例
List<ChannelHandlerContext> channelHandlerContexts = userChannelMap.get(userId.toString());
if (channelHandlerContexts != null && !channelHandlerContexts.isEmpty()) {
//给每个通道发送对应消息
for (ChannelHandlerContext handlerContext : channelHandlerContexts) {
sendMessage(handlerContext, jsonObject.toString());
}
}
//生成系统消息的聊天记录
LambdaQueryWrapper<ChatGroup> lambdaQueryWrapper = new LambdaQueryWrapper<>();
lambdaQueryWrapper.eq(ChatGroup::getMembers,"[system, "+userId+"]");
ChatGroup groupServiceOne = chatGroupService.getOne(lambdaQueryWrapper);
//如果给成员发送系统消息 而该成员还没有建立过连接从而没有群聊房间 则创建该成员系统消息房间
if (groupServiceOne == null){
groupServiceOne = new ChatGroup();
groupServiceOne.setType(String.valueOf(0));
groupServiceOne.setMembers("[system, "+userId+"]");
chatGroupService.save(groupServiceOne);
}
ChatHistory chatHistory = new ChatHistory();
//发送方设置为0 表示系统消息
chatHistory.setSenderId(0L);
chatHistory.setGeterId(groupServiceOne.getId());
chatHistory.setMessage(message);
chatHistory.setMessageDate(new Date());
chatHistory.setIsRead("1");//未读
chatHistoryService.save(chatHistory);
//发送消息后 将该房间未读消息数加1
if (userRoomCountMap.containsKey(userId+"+"+groupServiceOne.getId())){
//该房间未读消息数加1
userRoomCountMap.put(userId+"+"+groupServiceOne.getId(), userRoomCountMap.get(userId+"+"+groupServiceOne.getId())+1);
}else{
//将该房间未读消息数设置为1
userRoomCountMap.put(userId+"+"+groupServiceOne.getId(), 1);
}
}

17
xinnengyuan/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/websocket/controller/ChatGroupController.java
View File

@ -149,13 +149,22 @@ public class ChatGroupController {
List<Long> list = JSONObject.parseArray(members, Long.class);
list.remove(userId);
//如果单聊 则集合只剩有一人
SysUserVo sysUserVo = sysUserService.selectUserById(list.get(0));
byId.setName(sysUserVo.getNickName());
byId.setAvatar(sysUserVo.getAvatar());
SysUserVo sysUserVo = sysUserService.selectUserById(list.getFirst());
if (sysUserVo != null) {
byId.setName(sysUserVo.getNickName());
byId.setAvatar(sysUserVo.getAvatar());
}else{
byId.setName("此用户已注销");
byId.setAvatar(null);
}
}else {
//群聊 则只需要将群主头像赋值给群聊头像
SysUserVo sysUserVo = sysUserService.selectUserById(byId.getOwerId());
byId.setAvatar(sysUserVo.getAvatar());
if (sysUserVo != null){
byId.setAvatar(sysUserVo.getAvatar());
}else {
byId.setAvatar(null);
}
}
}