【springboot项目】在idea中启动报错合集

╰半橙微兮° 2023-10-14 16:46 16阅读 0赞

# 一、IDEA中报错 “Error running ‘Application‘: Command line is too long.“ 的解决办法 #

**报错详情：**

Error running 'Application':
    Command line is too long.Shorten command line for Application or also for Spring Boot default configuration.

**报错原因：** SpringBoot 启动命令过长

**解决方案：**  
**方法一：** 点击项目启动配置项 -> shorten command line 选项选择 classpath file 或 java manifest 选项 -> 重新启动工程运行即可  
![在这里插入图片描述][d46179ce77ef4cee86326b99e2e57311.png]

参考链接：[https://blog.csdn.net/qq\_42730111/article/details/115698121][https_blog.csdn.net_qq_42730111_article_details_115698121]

**方法二：**  
在 .idea/libraies/workspace.xml 中的 `<component name="PropertiesComponent">` 组件中，添加代码：

![在这里插入图片描述][8fd58fa5eea04eada588095c8ee0bb36.png]

参考链接：[https://blog.csdn.net/weixin\_43405300/article/details/123806649][https_blog.csdn.net_weixin_43405300_article_details_123806649]

# 二、Non-resolvable import POM: Cannot access ***-public (http://**.1*\*.4.\*9/nexus/content/reposit #

**报错详情：**

[ERROR] Non-resolvable import POM: Cannot access *-public (http://1.1.4.1*9/nexus/content/repositories/public/) in offline mode and the artifact org.springframework.cloud:spring-cloud-dependencies:pom

**解决方案：** 操作菜单路径 File—Settings—Build,Execution,Deployment—Build Tools—Maven—取消Work offline

![在这里插入图片描述][d6b14f9fd5bd4c6986c4e4957e2bb06b.png]

参考链接：[https://blog.csdn.net/sun\_luming/article/details/119948077][https_blog.csdn.net_sun_luming_article_details_119948077]

# 三、Unable to start embedded Tomcat（已解决）![在这里插入图片描述][01857647891d4870a7fe81a9118550b6.png] #

**解决方案：** 可能是没有选择jdk版本的原因，选上就可以了

![在这里插入图片描述][fa3ff974c6c14d479ac3d413d9ba9af5.png]

参考链接：[https://blog.csdn.net/javaXiaoAnRan/article/details/98214525][https_blog.csdn.net_javaXiaoAnRan_article_details_98214525]

# 四、com.mongodb.MongoSocketOpenException: Exception opening socket错误解决方法 #

**报错信息：**

com.mongodb.MongoSocketOpenException: Exception opening socket
    at com.mongodb.connection.SocketStream.open(SocketStream.java:63) ~[mongodb-driver-core-3.4.2.jar:na]
    at com.mongodb.connection.InternalStreamConnection.open(InternalStreamConnection.java:115) ~[mongodb-driver-core-3.4.2.jar:na]
    at com.mongodb.connection.DefaultServerMonitor$ServerMonitorRunnable.run(DefaultServerMonitor.java:113) ~[mongodb-driver-core-3.4.2.jar:na]
    at java.lang.Thread.run(Thread.java:748) [na:1.8.0_131]
    
    
    Caused by: java.net.ConnectException: Connection refused: connect
    at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method) ~[na:1.8.0_131]
    at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:85) ~[na:1.8.0_131]
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) ~[na:1.8.0_131]
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) ~[na:1.8.0_131]
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) ~[na:1.8.0_131]
    at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) ~[na:1.8.0_131]
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) ~[na:1.8.0_131]
    at java.net.Socket.connect(Socket.java:589) ~[na:1.8.0_131]
    at com.mongodb.connection.SocketStreamHelper.initialize(SocketStreamHelper.java:57) ~[mongodb-driver-core-3.4.2.jar:na]
    at com.mongodb.connection.SocketStream.open(SocketStream.java:58) ~[mongodb-driver-core-3.4.2.jar:na]
    ... 3 common frames omitted

**原因：** springboot自动配置了支持mongodb。在启动springboot时会自动实例化一个mongo实例，需要禁用自动配置 ，增加@SpringBootApplication(exclude = MongoAutoConfiguration.class)这个注解即可

或者在 pom.xml 文件中注释Mongo相关的启动语句，如下：

<dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-data-mongodb</artifactId>
    </dependency>

参考链接：[https://blog.csdn.net/weixin\_45157411/article/details/123581713][https_blog.csdn.net_weixin_45157411_article_details_123581713]

# 五、项目启动时，报错：nested exception is java.lang.RuntimeException: Failed to initialize DiscoveryClient! #

**原因：**  
引入spring-cloud-starter-netflix-eureka-client和spring-boot-starter-web两个依赖的时候，会出现冲突。由于代码里面，用了Spring MVC的Rest方式，而没有用spring-cloud-starter-netflix-eureka-client本身包含Jesery Rest方式。而导致报错

**解决方式：**  
**方法一：** 在spring-cloud-starter-netflix-eureka-server排出Jersey

<dependency> 
         <groupId>org.springframework.cloud</groupId> 
         <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId> 
    </dependency>

改为：

<dependency> 
         <groupId>org.springframework.cloud</groupId> 
         <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId> 
         
            <exclusions>
            <exclusion>
                 <groupId>com.sun.jersey</groupId>
                 <artifactId>jersey-client</artifactId>
            </exclusion>
            <exclusion>
                <groupId>com.sun.jersey</groupId>
                <artifactId>jersey-core</artifactId>
            </exclusion>
            <exclusion>
                <groupId>com.sun.jersey.contribs</groupId>
                <artifactId>jersey-apache-client4</artifactId>
            </exclusion>
          </exclusions>
    </dependency>

**方法二：** 不引用spring-boot-starter-web，把spring-boot-starter-web删去

<-- 去掉
    <dependency>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-web</artifactId>
         <exclusions>
              <exclusion>
               <groupId>org.springframework.boot</groupId>
               <artifactId>spring-boot-starter-tomcat</artifactId>
              </exclusion>
         </exclusions>
    </dependency> 
    -->

参考链接：[https://blog.csdn.net/weixin\_42861564/article/details/101303708][https_blog.csdn.net_weixin_42861564_article_details_101303708]

[d46179ce77ef4cee86326b99e2e57311.png]: https://img-blog.csdnimg.cn/d46179ce77ef4cee86326b99e2e57311.png
[https_blog.csdn.net_qq_42730111_article_details_115698121]: https://blog.csdn.net/qq_42730111/article/details/115698121
[8fd58fa5eea04eada588095c8ee0bb36.png]: https://img-blog.csdnimg.cn/8fd58fa5eea04eada588095c8ee0bb36.png
[https_blog.csdn.net_weixin_43405300_article_details_123806649]: https://blog.csdn.net/weixin_43405300/article/details/123806649
[d6b14f9fd5bd4c6986c4e4957e2bb06b.png]: https://img-blog.csdnimg.cn/d6b14f9fd5bd4c6986c4e4957e2bb06b.png
[https_blog.csdn.net_sun_luming_article_details_119948077]: https://blog.csdn.net/sun_luming/article/details/119948077
[01857647891d4870a7fe81a9118550b6.png]: https://img-blog.csdnimg.cn/01857647891d4870a7fe81a9118550b6.png
[fa3ff974c6c14d479ac3d413d9ba9af5.png]: https://img-blog.csdnimg.cn/fa3ff974c6c14d479ac3d413d9ba9af5.png
[https_blog.csdn.net_javaXiaoAnRan_article_details_98214525]: https://blog.csdn.net/javaXiaoAnRan/article/details/98214525
[https_blog.csdn.net_weixin_45157411_article_details_123581713]: https://blog.csdn.net/weixin_45157411/article/details/123581713
[https_blog.csdn.net_weixin_42861564_article_details_101303708]: https://blog.csdn.net/weixin_42861564/article/details/101303708