基于SSM+Websocket的实时在线聊天室项目源码+项目说明.zip

package cn.mccreefei.web; import cn.mccreefei.enums.MessageTypeEnum; import cn.mccreefei.model.Message; import cn.mccreefei.model.MessageRecordDo; import cn.mccreefei.model.User; import cn.mccreefei.service.UserService; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.messaging.handler.annotation.MessageMapping; import org.springframework.messaging.simp.SimpMessagingTemplate; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.ResponseBody; import org.springframework.web.multipart.MultipartFile; import javax.servlet.http.HttpServletRequest; import java.io.BufferedOutputStream; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.util.Date; /** * 发送消息控制器 */ @Controller public class MessageController { private Logger logger = LoggerFactory.getLogger(this.getClass()); private static final String SUBSCRIBE_MESSAGE_URI = "/topic/chat/message"; //订阅接收消息地址 private static final String IMAGE_PREFIX = "/resources/media/image/"; //服务器储存上传图片地址的前缀 @Autowired private SimpMessagingTemplate messagingTemplate; @Autowired private UserService userService; /** * 接收并且转发消息 * @param message */ @MessageMapping("/chat/message") public void receiveMessage(Message message){ message.setSendDate(new Date()); message.setMessageType("text"); logger.info(message.getSendDate() + "," + message.getUserName() + " send a message:" + message.getContent()); //保存聊天信息 User userByName = userService.getUserByName(message.getUserName()); MessageRecordDo messageRecordDo = MessageRecordDo.messageRecordBuilder() .userId(userByName == null ? null : userByName.getId()) .userName(message.getUserName()).content(message.getContent()) .messageType(MessageTypeEnum.TEXT.getCode()).createTime(new Date()).build(); userService.addUserMessageRecord(messageRecordDo); messagingTemplate.convertAndSend(SUBSCRIBE_MESSAGE_URI, message); } /** * 接收转发图片 * @param request * @param imageFile * @param userName * @return */ @RequestMapping(value = "/upload/image", method = RequestMethod.POST) @ResponseBody public String handleUploadImage(HttpServletRequest request, @RequestParam("image")MultipartFile imageFile, @RequestParam("userName")String userName){ if (!imageFile.isEmpty()){ String imageName = userName + "_" + (int)(Math.random() * 1000000) + ".jpg"; String path = request.getSession().getServletContext().getRealPath(IMAGE_PREFIX) +"/" + imageName; File localImageFile = new File(path); try { //上传图片到目录 byte[] bytes = imageFile.getBytes(); BufferedOutputStream bufferedOutputStream = new BufferedOutputStream(new FileOutputStream(localImageFile)); bufferedOutputStream.write(bytes); bufferedOutputStream.close(); Message message = new Message(); message.setMessageType("image"); message.setUserName(userName); message.setSendDate(new Date()); message.setContent(request.getContextPath() + IMAGE_PREFIX + imageName); //保存发送图片信息 User userByName = userService.getUserByName(message.getUserName()); MessageRecordDo messageRecordDo = MessageRecordDo.messageRecordBuilder() .userId(userByName == null ? null : userByName.getId()) .userName(userName).content(message.getContent()) .messageType(MessageTypeEnum.IMAGE.getCode()).createTime(new Date()).build(); userService.addUserMessageRecord(messageRecordDo); messagingTemplate.convertAndSend(SUBSCRIBE_MESSAGE_URI, message); } catch (IOException e) { logger.error("图片上传失败：" + e.getMessage(), e); return "upload false"; } } return "upload success"; } }