sun_t89 通过本文主要向大家介绍了Spring Boot实战之netty-socketio实现简单聊天室(给指定用户推送消息)等相关知识,希望对您有所帮助,也希望大家支持linkedu.com www.linkedu.com
网上好多例子都是群发的，本文实现一对一的发送，给指定客户端进行消息推送
1、本文使用到netty-socketio开源库，以及MySQL，所以首先在pom.xml中添加相应的依赖库
<dependency>
<groupId>com.corundumstudio.socketio</groupId>
<artifactId>netty-socketio</artifactId>
<version>1.7.11</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
</div>
2、修改application.properties, 添加端口及主机数据库连接等相关配置，
wss.server.port=8081 wss.server.host=localhost spring.datasource.url = jdbc:mysql://127.0.0.1:3306/springlearn spring.datasource.username = root spring.datasource.password = root spring.datasource.driverClassName = com.mysql.jdbc.Driver # Specify the DBMS spring.jpa.database = MYSQL # Show or not log for each sql query spring.jpa.show-sql = true # Hibernate ddl auto (create, create-drop, update) spring.jpa.hibernate.ddl-auto = update # Naming strategy spring.jpa.hibernate.naming-strategy = org.hibernate.cfg.ImprovedNamingStrategy # stripped before adding them to the entity manager) spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQL5Dialect</div>
3、修改Application文件，添加nettysocket的相关配置信息
package com.xiaofangtech.sunt;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;
import com.corundumstudio.socketio.AuthorizationListener;
import com.corundumstudio.socketio.Configuration;
import com.corundumstudio.socketio.HandshakeData;
import com.corundumstudio.socketio.SocketIOServer;
import com.corundumstudio.socketio.annotation.SpringAnnotationScanner;
@SpringBootApplication
public class NettySocketSpringApplication {
@Value("${wss.server.host}")
private String host;
@Value("${wss.server.port}")
private Integer port;
@Bean
public SocketIOServer socketIOServer()
{
Configuration config = new Configuration();
config.setHostname(host);
config.setPort(port);
//该处可以用来进行身份验证
config.setAuthorizationListener(new AuthorizationListener() {
@Override
public boolean isAuthorized(HandshakeData data) {
//http://localhost:8081?username=test&password=test
//例如果使用上面的链接进行connect，可以使用如下代码获取用户密码信息，本文不做身份验证
// String username = data.getSingleUrlParam("username");
// String password = data.getSingleUrlParam("password");
return true;
}
});
final SocketIOServer server = new SocketIOServer(config);
return server;
}
@Bean
public SpringAnnotationScanner springAnnotationScanner(SocketIOServer socketServer) {
return new SpringAnnotationScanner(socketServer);
}
public static void main(String[] args) {
SpringApplication.run(NettySocketSpringApplication.class, args);
}
}
</div>
4、添加消息结构类MessageInfo.java
package com.xiaofangtech.sunt.message;
public class MessageInfo {
//源客户端id
private String sourceClientId;
//目标客户端id
private String targetClientId;
//消息类型
private String msgType;
//消息内容
private String msgContent;
public String getSourceClientId() {
return sourceClientId;
}
public void setSourceClientId(String sourceClientId) {
this.sourceClientId = sourceClientId;
}
public String getTargetClientId() {
return targetClientId;
}
public void setTargetClientId(String targetClientId) {
this.targetClientId = targetClientId;
}
public String getMsgType() {
return msgType;
}
public void setMsgType(String msgType) {
this.msgType = msgType;
}
public String getMsgContent() {
return msgContent;
}
public void setMsgContent(String msgContent) {
this.msgContent = msgContent;
}
}
</div>
5、添加客户端信息，用来存放客户端的sessionid
package com.xiaofangtech.sunt.bean;
import java.util.Date;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;
import javax.validation.constraints.NotNull;
@Entity
@Table(name="t_clientinfo")
public class ClientInfo {
@Id
@NotNull
private String clientid;
private Short connected;
private Long mostsignbits;
private Long leastsignbits;
private Date lastconnecteddate;
public String getClientid() {
return clientid;
}
public void setClientid(String clientid) {
this.clientid = clientid;
}
public Short getConnected() {
return connected;
}
public void setConnected(Short connected) {
this.connected = connected;
}
public Long getMostsignbits() {
return mostsignbits;
}
public void setMostsignbits(Long mostsignbits) {
this.mostsignbits = mostsignbits;
}
public Long getLeastsignbits() {
return leastsignbits;
}
public void setLeastsignbits(Long leastsignbits) {
this.leastsignbits = leastsignbits;
}
public Date getLastconnecteddate() {
return lastconnecteddate;
}
public void setLastconnecteddate(Date lastconnecteddate) {
this.lastconnecteddate = lastconnecteddate;
}
}
</div>
6、添加查询数据库接口ClientInfoRepository.java
package com.xiaofangtech.sunt.repository;
import org.springframework.data.repository.CrudRepository;
import com.xiaofangtech.sunt.bean.ClientInfo;
public interface ClientInfoRepository extends CrudRepository<ClientInfo, String>{
ClientInfo findClientByclientid(String clientId);
}
</div>
7、添加消息处理类MessageEventHandler.Java
package com.xiaofangtech.sunt.message;
import java.util.Date;
import java.util.UUID;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import com.corundumstudio.socketio.AckRequest;
import com.corundumstudio.socketio.SocketIOClient;
import com.corundumstudio.socketio.SocketIOServer;
import com.corundumstudio.socketio.annotation.OnConnect;
import com.corundumstudio.socketio.annotation.OnDisconnect;
import com.corundumstudio.socketio.annotation.OnEvent;
import com.xiaofangtech.sunt.bean.ClientInfo;
import com.xiaofangtech.sunt.repository.ClientInfoRepository;
@Component
public class MessageEventHandler
{
private final SocketIOServer server;
@Autowired
private ClientInfoRepository clientInfoRepository;
@Autowired
public MessageEventHandler(SocketIOServer server)
{
this.server = server;
}
//添加connect事件，当客户端发起连接时调用，本文中将clientid与sessionid存入数据库
//方便后面发送消息时查找到对应的目标client,
@OnConnect
public void onConnect(SocketIOClient client)
{
String clientId = client.getHandshakeData().getSingleUrlParam("clientid");