nacos2.2.1 启动报错

最新推荐文章于 2025-11-05 11:33:47 发布

转载最新推荐文章于 2025-11-05 11:33:47 发布 · 558 阅读

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原文链接：https://github.com/alibaba/nacos/issues/10047

文章标签：

#java #servlet #spring

文章主要描述了在启动Nacos时遇到的ApplicationContextException，该异常是由于无法启动嵌入式Tomcat服务器导致的。解决方案是通过生成一个256位的AESSecretKey，并将其Base64编码后的值设置到nacos/conf/application.properties的nacos.core.auth.plugin.nacos.token.secret.key配置中，从而解决启动问题。

nacos启动报错

org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:163)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:577)
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:145)
        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:745)
        at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:423)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:307)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1317)
        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1306)
        at com.alibaba.nacos.Nacos.main(Nacos.java:35)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:49)
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:108)
        at org.springframework.boot.loader.Launcher.launch(Launcher.java:58)
        at org.springframework.boot.loader.PropertiesLauncher.main(PropertiesLauncher.java:467)
Caused by: org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat
        at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:142)
        at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.<init>(TomcatWebServer.java:104)
        at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getTomcatWebServer(TomcatServletWebServerFactory.java:479)
        at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getWebServer(TomcatServletWebServerFactory.java:211)
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:182)
        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:160)
        ... 16 common frames omitted

github看到一个解决方案

执行如下代码

import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
import java.security.NoSuchAlgorithmException;
import java.util.Base64;

public class SecretKeyGenerator {

    public static SecretKey generate() {
        try {
            // 使用AES算法生成256位的SecretKey
            KeyGenerator keyGenerator = KeyGenerator.getInstance("AES");
            keyGenerator.init(256);
            return keyGenerator.generateKey();
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
            return null;
        }
    }

    public static void main(String[] args) {
        SecretKey secretKey = generate();
        System.out.println(Base64.getEncoder().encodeToString(secretKey.getEncoded()));
    }
}

把结果赋值给nacos/conf/application.properties的nacos.core.auth.plugin.nacos.token.secret.key，然后启动就可以了