1、注意gateway中用webflux启动网页,不能加webmvc,也就是spring-boot-starter-web依赖,因为里面有springmvc,所以如果要加,的除去springmvc的依赖;
摘自网上大佬的一个回答:
因为gateway和zuul不一样,gateway用的是长连接,netty-webflux,zuul1.0用的就是同步webmvc。所以你的非gateway子项目启动用的是webmvc,你的gateway启动用的是webflux. spring-boot-start-web和spring-boot-start-webflux相见分外眼红。不能配置在同一pom.xml,或者不能在同一项目中出现。
eg项目:
结构:
依赖
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0modelVersion>
<parent>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-parentartifactId>
<version>2.2.2.RELEASEversion>
<relativePath/>
parent>
<groupId>com.examplegroupId>
<artifactId>demoartifactId>
<version>0.0.1-SNAPSHOTversion>
<name>demoname>
<description>Demo project for Spring Bootdescription>
<properties>
<java.version>1.8java.version>
properties>
<dependencies>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starterartifactId>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-testartifactId>
<scope>testscope>
dependency>
<dependency>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-starter-webfluxartifactId>
dependency>
<dependency>
<groupId>org.springframework.cloudgroupId>
<artifactId>spring-cloud-starter-gatewayartifactId>
<version>2.2.1.RELEASEversion>
dependency>
<dependency>
<groupId>com.alibaba.cloudgroupId>
<artifactId>spring-cloud-starter-alibaba-nacos-discoveryartifactId>
<version>2.2.4.RELEASEversion>
dependency>
dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.bootgroupId>
<artifactId>spring-boot-maven-pluginartifactId>
plugin>
plugins>
build>
project>
yml文件(1、动态路由):
server:
port: 8889
spring:
cloud:
gateway:
routes:
- id: path_route
uri: lb://dtest
predicates:
- Path=/myWebsocket/000
nacos:
discovery:
server-addr: localhost:8848
application:
name: demogateway
实际访问地址:http://localhost:8889/myWebsocket/000
yml文件(2、网址路径):
server:
port: 8889
spring:
cloud:
gateway:
routes:
- id: path_route
uri: http://www.baidu.com
predicates:
- Path=/*
nacos:
discovery:
server-addr: localhost:8848
application:
name: demogateway
实际访问访问地址:http://localhost:8889/
配置规则:
spring:
cloud:
gateway:
routes:
- id: path_route
uri: lb://dtest #配置的实际想访问的动态地址(nacos注册的)
predicates:
- Path=/myWebsocket/000 #路径符合条件的(断言这个路径要是实际路由有的那个地址)
注意这里的 - Path=后面的路径要是你真正访问网站上有的,模糊匹配可以用/**
pom:
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
<version>2.2.4.RELEASE</version>
</dependency>
yml:
server:
port: 9999
spring:
application:
name: dtest
cloud:
nacos:
discovery:
server-addr: localhost:8848
只用提供接口就可以了:
package com.example.dtest.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
@RequestMapping("/myWebsocket")
public class WebsocketController {
@GetMapping("/000")
public String myWebsocket(){
return "webSocketTest";
}
}
DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>WebSocket测试title>
head>
<body>
<p>WebSocketp>
<input type="text" value="ws://127.0.0.1:58080/webSocket" id="textId">
<button type="button" onclick="testWebSocket()">测试button>
<script type="text/javascript" src="/jquery/jquery-3.6.0.js">script>
<script>
const state = ['连接尚未建立', '连接已建立,可以进行通信', '连接正在进行关闭', '连接已经关闭或者连接不能打开'];
let url0 = $("#textId").val();
console.log("url0=========="+url0);
function testWebSocket() {
url0 = $("#textId").val();
console.log("url0=========="+url0);
// var ws = new WebSocket('ws://127.0.0.1:58080/webSocket');
var ws = new WebSocket(url0);
console.log('ws连接状态:' + ws.readyState + ' --- ' + state[ws.readyState]);
//监听是否连接成功
ws.onopen = function () {
console.log('ws连接状态:' + ws.readyState + ' --- ' + state[ws.readyState]);
//连接成功则发送一个数据
ws.send("{'uid':'123'}");//这是一个测试数据
console.log('已发送一个数据')
}
//接听服务器发回的信息并处理展示
ws.onmessage = function (data) {
console.log('接收到来自服务器的消息:');
console.log(data);
//完成通信后关闭WebSocket连接
ws.close();
console.log('正在关闭...');
}
//监听连接关闭事件
ws.onclose = function () {
//监听整个过程中websocket的状态
console.log('ws连接状态:' + ws.readyState + ' --- ' + state[ws.readyState]);
}
//监听并处理error事件
ws.onerror = function (error) {
console.log(error);
}
console.log("全部代码已执行完毕,WebSocket处于异步监听状态");
}
script>
body>
html>
pom:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.2.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.example</groupId>
<artifactId>demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>demo</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<!-- 要把web的去掉-->
<dependency>
<groupId>com.example</groupId>
<artifactId>dtestcommon</artifactId>
<version>0.0.1-SNAPSHOT</version>
<exclusions>
<exclusion>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-webflux</artifactId>
</dependency>
<!-- <!–gateway–>-->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-gateway</artifactId>
<version>2.2.1.RELEASE</version>
</dependency>
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
<version>2.2.4.RELEASE</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.apache.commons/commons-lang3 -->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.12.0</version>
</dependency>
<!-- https://mvnrepository.com/artifact/com.alibaba/dubbo-->
<!-- <dependency>-->
<!-- <groupId>com.alibaba</groupId>-->
<!-- <artifactId>dubbo</artifactId>-->
<!-- <version>2.5.3</version>-->
<!-- <exclusions>-->
<!-- <exclusion>-->
<!-- <groupId>org.springframework</groupId>-->
<!-- <artifactId>spring</artifactId>-->
<!-- </exclusion>-->
<!-- <exclusion>-->
<!-- <groupId>org.jboss.netty</groupId>-->
<!-- <artifactId>netty</artifactId>-->
<!-- </exclusion>-->
<!-- </exclusions>-->
<!-- </dependency>-->
<!-- https://mvnrepository.com/artifact/org.apache.dubbo/dubbo-spring-boot-starter -->
<dependency>
<groupId>org.apache.dubbo</groupId>
<artifactId>dubbo-spring-boot-starter</artifactId>
<version>2.7.8</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
yml:
server:
port: 8889
spring:
cloud:
gateway:
routes:
- id: path_route
uri: lb://dtest #配置的实际想访问的动态地址(nacos注册的)
predicates:
# - Path=/myWebsocket/000 #路径符合条件的(断言这个路径要是实际路由有的那个地址,要是真实访问地址服务器里面有的地址)
- Path=/myWebsocket/** #路径符合条件的(断言这个路径要是实际路由有的那个地址,要是真实访问地址服务器里面有的地址)
nacos:
discovery:
server-addr: localhost:8848
application:
name: demogateway
dubbo:
application: #应用配置,用于配置当前应用信息,不管该应用是提供者还是消费者。
name: Consumer
registry: #注册中心配置,用于配置连接注册中心相关信息。
address: nacos://127.0.0.1:8848
protocol: #协议配置,用于配置提供服务的协议信息,协议由提供方指定,消费方被动接受。
name: dubbo
port: 20880
scan:
base-packages: com.example.dtestgateway.dubboConsumer.service #服务暴露与发现消费所在的package
更多配置可以参考官网!!!
http://192.168.1.21:8889/myWebsocket/000
成功!
相当于id是gateway的服务id,但路径是真实的路径,当然也可以配置