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报错内容如下
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org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat
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at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:156)
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at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:544)
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at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:141)
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at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:744)
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at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:391)
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at org.springframework.boot.SpringApplication.run(SpringApplication.java:312)
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at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215)
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at org.springframework.boot.SpringApplication.run(SpringApplication.java:1204)
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at com.alibaba.nacos.Nacos.main(Nacos.java:35)
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at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
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at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
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at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
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at java.lang.reflect.Method.invoke(Method.java:483)
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at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:49)
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at org.springframework.boot.loader.Launcher.launch(Launcher.java:108)
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at org.springframework.boot.loader.Launcher.launch(Launcher.java:58)
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at org.springframework.boot.loader.PropertiesLauncher.main(PropertiesLauncher.java:467)
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Caused by: org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat
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at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:124)
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at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.<init>(TomcatWebServer.java:86)
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at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getTomcatWebServer(TomcatServletWebServerFactory.java:416)
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at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getWebServer(TomcatServletWebServerFactory.java:180)
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at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:180)
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at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:153)
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... 16 common frames omitted
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(spring cloud alibaba项目源码 from fhadmin.cn)
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因为如果直接在 bin 目录下用鼠标双击 startup.cmd 启动的话,默认的是以 cluster (集群) 的方式启动,直接启动第一个会报 Unable to start embedded Tomcat 错误,改成单机启动:
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用记事本打开 bin 目录下查看 startup.cmd
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@echo off
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rem Copyright 1999-2018 Alibaba Group Holding Ltd.
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rem Licensed under the Apache License, Version 2.0 (the "License");
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rem you may not use this file except in compliance with the License.
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rem You may obtain a copy of the License at
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rem
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rem http://www.apache.org/licenses/LICENSE-2.0
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rem
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rem Unless required by applicable law or agreed to in writing, software
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rem distributed under the License is distributed on an "AS IS" BASIS,
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rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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rem See the License for the specific language governing permissions and
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rem limitations under the License.
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if not exist "%JAVA_HOME%\bin\java.exe" echo Please set the JAVA_HOME variable in your environment, We need java(x64)! jdk8 or later is & EXIT /B 1
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set "JAVA=%JAVA_HOME%\bin\java.exe"
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setlocal enabledelayedexpansion
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set BASE_DIR=%~dp0
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rem added double quotation marks to avoid the issue caused by the folder names containing spaces.
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rem removed the last 5 chars(which means \bin\) to get the base DIR.
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set BASE_DIR="%BASE_DIR:~0,-5%"
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set CUSTOM_SEARCH_LOCATIONS=file:%BASE_DIR%/conf/
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set MODE="standalone"
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set FUNCTION_MODE="all"
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set SERVER=nacos-server
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set MODE_INDEX=-1
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set FUNCTION_MODE_INDEX=-1
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set SERVER_INDEX=-1
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set EMBEDDED_STORAGE_INDEX=-1
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set EMBEDDED_STORAGE=""
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把 set MODE="cluster" 改为 set MODE="standalone" 即可
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