写在前面
源码 。
本文看下netty如何整合es实现存储以及搜索功能。因为诸如聊天类的系统，一般都是需要提供类似于搜索这类的功能的，所以就很有必要引入es了，所以呢，本文就来看下。
以下，es和sprintboot等版本和我的保持一致，至少大版本保持一致，不然可能会遇到一些诡异的问题。
1：基础环境准备
1.1：安装es
1.2：创建需要使用的索引
PUT goodsorder
{
"settings": {
"number_of_shards": 1,
"number_of_replicas": 1
}
}设置分区和分片都是1。这也是默认的配置，不过这里显式配置了，更加清晰咯！
2：编程
2.1：es操作相关类
- 仓库类
java
public interface UserRepository extends ElasticsearchRepository<User, String> {
Page<User> findByName(String name, Pageable pageable);
}- 服务类
java
@Service("userService")
public class UserServiceImpl implements UserService {
private UserRepository dataRepository;
@Autowired
public void setDataRepository(UserRepository dataRepository) {
this.dataRepository = dataRepository;
}
@Override
public void save(User user) {
dataRepository.save(user);
}
@Override
public void deleteById(String id) {
dataRepository.deleteById(id);
}
@Override
public User queryUserById(String id) {
Optional<User> optionalUser = dataRepository.findById(id);
return optionalUser.get();
}
@Override
public Iterable<User> queryAll() {
return dataRepository.findAll();
}
@Override
public Page<User> findByName(String name, PageRequest request) {
return dataRepository.findByName(name, request);
}
}- es索引映射类
java
//@Document(indexName = "dahuyou"/*, type = "group_user"*/)
@Document(indexName = "goodsorder", shards = 1, replicas = 1)
public class User {
@Id
private String id;
private String name; //姓名
private Integer age; //年龄
private String level; //级别
private Date entryDate;//时间
private String mobile; //电话
private String email; //邮箱
private String address;//地址
...
}2.2：netty消息处理器
java
@Service("myServerHandler")
public class MyServerHandler extends ChannelInboundHandlerAdapter {
private Logger logger = LoggerFactory.getLogger(MyServerHandler.class);
@Autowired
private UserService userService;
@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
//接收msg消息{与上一章节相比，此处已经不需要自己进行解码}
logger.info(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()) + " 服务端接收到消息：" + JSON.toJSONString(msg));
//接收数据写入到Elasticsearch
TransportProtocol transportProtocol = (TransportProtocol) msg;
userService.save((User) transportProtocol.getObj());
}
...
}在消息处理器中会将收到的消息写入到es中。
2.3：netty客户端测试类
java
public class ApiTest {
public static void main(String[] args) {
System.out.println("hi dahuyouaaaaa!!!!!!");
EventLoopGroup workerGroup = new NioEventLoopGroup();
try {
Bootstrap b = new Bootstrap();
b.group(workerGroup);
b.channel(NioSocketChannel.class);
b.option(ChannelOption.AUTO_READ, true);
b.handler(new ChannelInitializer<SocketChannel>() {
@Override
protected void initChannel(SocketChannel channel) throws Exception {
//对象传输处理
channel.pipeline().addLast(new ObjDecoder(TransportProtocol.class));
channel.pipeline().addLast(new ObjEncoder(TransportProtocol.class));
// 在管道中添加我们自己的接收数据实现方法
channel.pipeline().addLast(new ChannelInboundHandlerAdapter() {
@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
}
});
}
});
ChannelFuture f = b.connect("127.0.0.1", 7397).sync();
System.out.println("netty client start done. {}");
TransportProtocol tp1 = new TransportProtocol(1, new User(UUID.randomUUID().toString(), "李小明", 1, "T0-1", new Date(), "13566668888", "184172133@qq.com", "北京"));
TransportProtocol tp2 = new TransportProtocol(1, new User(UUID.randomUUID().toString(), "张大明", 2, "T0-2", new Date(), "13566660001", "huahua@qq.com", "南京"));
TransportProtocol tp3 = new TransportProtocol(1, new User(UUID.randomUUID().toString(), "李书鹏", 2, "T1-1", new Date(), "13566660002", "xiaobai@qq.com", "榆树"));
TransportProtocol tp4 = new TransportProtocol(1, new User(UUID.randomUUID().toString(), "韩小雪", 2, "T2-1", new Date(), "13566660002", "xiaobai@qq.com", "榆树"));
TransportProtocol tp5 = new TransportProtocol(1, new User(UUID.randomUUID().toString(), "董叔飞", 2, "T4-1", new Date(), "13566660002", "xiaobai@qq.com", "河北"));
TransportProtocol tp6 = new TransportProtocol(1, new User(UUID.randomUUID().toString(), "候明相", 2, "T5-1", new Date(), "13566660002", "xiaobai@qq.com", "下花园"));
TransportProtocol tp7 = new TransportProtocol(1, new User(UUID.randomUUID().toString(), "田明明", 2, "T3-1", new Date(), "13566660002", "xiaobai@qq.com", "东平"));
TransportProtocol tp8 = new TransportProtocol(1, new User(UUID.randomUUID().toString(), "王大伟", 2, "T4-1", new Date(), "13566660002", "xiaobai@qq.com", "西湖"));
TransportProtocol tp9 = new TransportProtocol(1, new User(UUID.randomUUID().toString(), "李雪明", 2, "T1-1", new Date(), "13566660002", "xiaobai@qq.com", "南昌"));
TransportProtocol tp10 = new TransportProtocol(1, new User(UUID.randomUUID().toString(), "朱小飞", 2, "T2-1", new Date(), "13566660002", "xiaobai@qq.com", "吉林"));
TransportProtocol tp11 = new TransportProtocol(1, new User(UUID.randomUUID().toString(), "牛大明", 2, "T1-1", new Date(), "13566660002", "xiaobai@qq.com", "长春"));
TransportProtocol tp12 = new TransportProtocol(1, new User(UUID.randomUUID().toString(), "关雪儿", 2, "T2-1", new Date(), "13566660002", "xiaobai@qq.com", "深圳"));
//向服务端发送信息
f.channel().writeAndFlush(tp1);
f.channel().writeAndFlush(tp2);
f.channel().writeAndFlush(tp3);
f.channel().writeAndFlush(tp4);
f.channel().writeAndFlush(tp5);
f.channel().writeAndFlush(tp6);
f.channel().writeAndFlush(tp7);
f.channel().writeAndFlush(tp8);
f.channel().writeAndFlush(tp9);
f.channel().writeAndFlush(tp10);
f.channel().writeAndFlush(tp11);
f.channel().writeAndFlush(tp12);
f.channel().closeFuture().syncUninterruptibly();
} catch (InterruptedException e) {
e.printStackTrace();
} finally {
workerGroup.shutdownGracefully();
}
}
}运行后查看数据：
酱！！！