资讯专栏INFORMATION COLUMN

spring-boot-plus 常见问题解决 FAQ(十二)

dackel / 1526人阅读

摘要:常见问题解决编译错误问题日志编译错误编译提示等日志错误解决检查是否安装插件安装安装运行错误问题错误不能连接解决检查服务是否启动检查地址和端口号未知数据库解决检查是否新建数据库默认的数据库为,可在不同环境的配置文件中更改例如中

spring-boot-plus 常见问题解决 FAQ 编译错误问题 log日志编译错误
编译提示log.info等日志错误
解决

检查是否安装lombok插件

idea安装lombok

eclipse安装lombok


运行错误问题 MySQL错误
2019-07-31 14:16:52.412 ERROR 14724 --- [           main] com.alibaba.druid.pool.DruidDataSource   : init datasource error, url: jdbc:mysql://localhost:3306/spring_boot_plus?serverTimezone=Asia/Shanghai&useUnicode=true&characterEncoding=utf8&useSSL=false&allowPublicKeyRetrieval=true

com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
不能连接mysql
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
解决

检查MySQL服务是否启动

检查ip地址和端口号

未知数据库
com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown database "spring_boot_plus"
解决

检查是否新建spring_boot_plus数据库

默认的数据库为spring_boot_plus,可在不同环境的配置文件中更改

例如:application-local.yml中的spring.datasource.url中更改数据库名称


Redis错误
org.springframework.data.redis.connection.PoolException: Could not get a resource from the pool; nested exception is io.lettuce.core.RedisConnectionException: Unable to connect to localhost:6379
不能连接redis

Unable to connect to localhost:6379

解决

启动redis服务

redis默认端口号:6379

默认没有设置密码

请根据环境情况,进行配置


端口已被占用 Caused by: java.net.BindException: Address already in use: bind
Caused by: java.net.BindException: Address already in use: bind
    at sun.nio.ch.Net.bind0(Native Method) ~[na:1.8.0_191]
    at sun.nio.ch.Net.bind(Net.java:433) ~[na:1.8.0_191]
    at sun.nio.ch.Net.bind(Net.java:425) ~[na:1.8.0_191]
    at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223) ~[na:1.8.0_191]
    at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74) ~[na:1.8.0_191]
详细错误日志
2019-08-02 23:23:41.350 ERROR 23380 --- [           main] org.apache.catalina.util.LifecycleBase   : Failed to start component [Connector[HTTP/1.1-8888]]

org.apache.catalina.LifecycleException: Protocol handler start failed
    at org.apache.catalina.connector.Connector.startInternal(Connector.java:1008) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
    at org.apache.catalina.core.StandardService.addConnector(StandardService.java:227) [tomcat-embed-core-9.0.21.jar:9.0.21]
    at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.addPreviouslyRemovedConnectors(TomcatWebServer.java:263) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
    at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.start(TomcatWebServer.java:195) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.startWebServer(ServletWebServerApplicationContext.java:296) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.finishRefresh(ServletWebServerApplicationContext.java:162) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:552) [spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:742) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:389) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:311) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1213) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1202) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
    at io.geekidea.springbootplus.SpringBootPlusApplication.main(SpringBootPlusApplication.java:51) [classes/:na]
Caused by: java.net.BindException: Address already in use: bind
    at sun.nio.ch.Net.bind0(Native Method) ~[na:1.8.0_191]
    at sun.nio.ch.Net.bind(Net.java:433) ~[na:1.8.0_191]
    at sun.nio.ch.Net.bind(Net.java:425) ~[na:1.8.0_191]
    at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223) ~[na:1.8.0_191]
    at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74) ~[na:1.8.0_191]
    at org.apache.tomcat.util.net.NioEndpoint.initServerSocket(NioEndpoint.java:230) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
    at org.apache.tomcat.util.net.NioEndpoint.bind(NioEndpoint.java:213) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
    at org.apache.tomcat.util.net.AbstractEndpoint.bindWithCleanup(AbstractEndpoint.java:1124) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
    at org.apache.tomcat.util.net.AbstractEndpoint.start(AbstractEndpoint.java:1210) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
    at org.apache.coyote.AbstractProtocol.start(AbstractProtocol.java:585) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
    at org.apache.catalina.connector.Connector.startInternal(Connector.java:1005) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
    ... 14 common frames omitted

2019-08-02 23:23:41.356  INFO 23380 --- [           main] o.apache.catalina.core.StandardService   : Stopping service [Tomcat]
2019-08-02 23:23:41.362  WARN 23380 --- [           main] o.a.c.loader.WebappClassLoaderBase       : The web application [ROOT] appears to have started a thread named [lettuce-eventExecutorLoop-1-1] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 sun.misc.Unsafe.park(Native Method)
 java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
 java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
 java.util.concurrent.LinkedBlockingQueue.poll(LinkedBlockingQueue.java:467)
 io.netty.util.concurrent.SingleThreadEventExecutor.takeTask(SingleThreadEventExecutor.java:252)
 io.netty.util.concurrent.DefaultEventExecutor.run(DefaultEventExecutor.java:64)
 io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:906)
 io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
 io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
 java.lang.Thread.run(Thread.java:748)
2019-08-02 23:23:41.363  WARN 23380 --- [           main] o.a.c.loader.WebappClassLoaderBase       : The web application [ROOT] appears to have started a thread named [Druid-ConnectionPool-Create-1916224178] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 sun.misc.Unsafe.park(Native Method)
 java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
 java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
 com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread.run(DruidDataSource.java:2672)
2019-08-02 23:23:41.364  WARN 23380 --- [           main] o.a.c.loader.WebappClassLoaderBase       : The web application [ROOT] appears to have started a thread named [Druid-ConnectionPool-Destroy-1916224178] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread:
 java.lang.Thread.sleep(Native Method)
 com.alibaba.druid.pool.DruidDataSource$DestroyConnectionThread.run(DruidDataSource.java:2768)
2019-08-02 23:23:41.377  INFO 23380 --- [           main] ConditionEvaluationReportLoggingListener : 

Error starting ApplicationContext. To display the conditions report re-run your application with "debug" enabled.
2019-08-02 23:23:41.383 ERROR 23380 --- [           main] o.s.b.d.LoggingFailureAnalysisReporter   : 

***************************
APPLICATION FAILED TO START
***************************

Description:

The Tomcat connector configured to listen on port 8888 failed to start. The port may already be in use or the connector may be misconfigured.

Action:

Verify the connector"s configuration, identify and stop any process that"s listening on port 8888, or configure this application to listen on another port.

2019-08-02 23:23:41.410  INFO 23380 --- [           main] o.s.s.c.ThreadPoolTaskScheduler          : Shutting down ExecutorService "taskScheduler"
2019-08-02 23:23:41.413  INFO 23380 --- [           main] o.s.s.c.ThreadPoolTaskScheduler          : Shutting down ExecutorService
2019-08-02 23:23:41.414  INFO 23380 --- [           main] o.s.s.concurrent.ThreadPoolTaskExecutor  : Shutting down ExecutorService "applicationTaskExecutor"
2019-08-02 23:23:41.417  INFO 23380 --- [           main] com.alibaba.druid.pool.DruidDataSource   : {dataSource-1} closing ...
2019-08-02 23:23:41.421  INFO 23380 --- [           main] com.alibaba.druid.pool.DruidDataSource   : {dataSource-1} closed

Process finished with exit code 1
解决
修改端口: application.local.yml中的port,默认端口8888

或者kill掉对应端口的进程

Mac/linux:kill端口

Windows:找到对应的java程序,结束任务


Spring Boot Admin不能访问问题
你的主机中的软件中止了一个已建立的连接
2019-07-31 16:33:37.205 ERROR 6696 --- [ctor-http-nio-2] o.s.w.s.adapter.HttpWebHandlerAdapter    : [f4aeb71d] Error [java.io.IOException: 你的主机中的软件中止了一个已建立的连接。] for HTTP GET "/applications", but ServerHttpResponse already committed (200 OK)
解决
8888端口:与当前项目端口一致

yaml配置

spring:
  boot:
    admin:
      client:
        url: "http://localhost:8888"
management:
  endpoints:
    web:
      exposure:
        include: "*"
  endpoint:
    health:
      show-details: ALWAYS

properties配置

spring.boot.admin.client.url=http://localhost:8888
management.endpoints.web.exposure.include=*
management.endpoint.health.show-details=ALWAYS

Swagger问题 不能访问swagger页面
{"code":404,"data":null,"msg":"你请求的路径不存在","time":"2019-08-01 12:56:27"}
解决

检查WebMvcConfig.java类中是否排除了swagger静态资源

@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
    registry.addResourceHandler("swagger-ui.html")
            .addResourceLocations("classpath:/META-INF/resources/");
    registry.addResourceHandler("/webjars/**")
            .addResourceLocations("classpath:/META-INF/resources/webjars/");
}

LocalDateTime日期类使用问题
Caused by: java.sql.SQLFeatureNotSupportedException
Caused by: java.sql.SQLFeatureNotSupportedException
    at com.alibaba.druid.pool.DruidPooledResultSet.getObject(DruidPooledResultSet.java:1771)
    at org.apache.ibatis.type.LocalDateTimeTypeHandler.getNullableResult(LocalDateTimeTypeHandler.java:38)
    at org.apache.ibatis.type.LocalDateTimeTypeHandler.getNullableResult(LocalDateTimeTypeHandler.java:28)
    at org.apache.ibatis.type.BaseTypeHandler.getResult(BaseTypeHandler.java:81)
org.springframework.dao.InvalidDataAccessApiUsageException: Error attempting to get column "create_time" from result set.  Cause: java.sql.SQLFeatureNotSupportedException
; null; nested exception is java.sql.SQLFeatureNotSupportedException

    at org.springframework.jdbc.support.SQLExceptionSubclassTranslator.doTranslate(SQLExceptionSubclassTranslator.java:96)
    at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:72)
    at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:81)
    at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:73)
    at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:446)
    at com.sun.proxy.$Proxy134.selectOne(Unknown Source)
    at org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:166)
    at com.baomidou.mybatisplus.core.override.MybatisMapperMethod.execute(MybatisMapperMethod.java:89)
    at com.baomidou.mybatisplus.core.override.MybatisMapperProxy.invoke(MybatisMapperProxy.java:62)
    at com.sun.proxy.$Proxy139.getSysLogById(Unknown Source)
    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)

问题原因是JDK8的LocalDate、LocalTime、LocalDateTime日期类型,druid数据源尚不支持

druid issues

目前解决办法

更换数据源

在mybatis-plus生成代码中配置,将日期类型生成为DateType.ONLY_DATE,数据库中的日期类型生成为Date

// 全局配置
GlobalConfig gc = new GlobalConfig();
gc.setDateType(DateType.ONLY_DATE); // 设置日期类型为Date

mybatis-plus dateType配置


运维部署问题 项目打包后,依赖包丢失

spring-boot-plus.jar只有100多kb

此时依赖包未打包到主jar中,检查pom.xml配置

spring-boot-plus项目中,pom.xml没有直接继承spring-boot-starter-parent

而是导入spring-boot-dependencies依赖

这样做的好处是,项目可以继承自己的父pom

使用这种方式,进行打包,默认情况下,会导致依赖包丢失,需进行以下配置

    org.springframework.boot
    spring-boot-maven-plugin
    
        io.geekidea.springbootplus.SpringBootPlusApplication
    
    
        
            
                repackage
            
        
    

mainClass:项目启动类

repackage:重新打包

文章版权归作者所有,未经允许请勿转载,若此文章存在违规行为,您可以联系管理员删除。

转载请注明本文地址:https://www.ucloud.cn/yun/110697.html

相关文章

  • spring-boot-plus 常见问题解决 FAQ(十二)

    摘要:常见问题解决编译错误问题日志编译错误编译提示等日志错误解决检查是否安装插件安装安装运行错误问题错误不能连接解决检查服务是否启动检查地址和端口号未知数据库解决检查是否新建数据库默认的数据库为,可在不同环境的配置文件中更改例如中 spring-boot-plus 常见问题解决 FAQ 编译错误问题 log日志编译错误 编译提示log.info等日志错误 解决 检查是否安装lombok插件...

    RayKr 评论0 收藏0
  • spring-boot-plus快速开发框架文档目录

    摘要:一套集成常用开发组件的后台快速开发脚手架每个人都可以独立快速高效地开发项目官网地址项目介绍项目快速开始导入项目配置文件详细配置项目目录结构项目打包运维部署更新日志后台快速开发脚手架之代码生 spring-boot-plus一套集成spring boot常用开发组件的后台快速开发脚手架 showImg(/img/remote/1460000020034585?w=205&h=184);G...

    JohnLui 评论0 收藏0
  • spring-boot-plus运维部署(八)

    摘要:运维部署线上部署打包环境为打包后的目录设置线上数据库等敏感信息启动服务启动日志 spring-boot-plus运维部署 线上部署 打包环境为prod mvn clean package -Pprod 打包后的目录 cd target/spring-boot-plus-1.2.0.RELEASE-prod 设置线上数据库、Redis等敏感信息 vim spring-boot-plus/...

    Baaaan 评论0 收藏0
  • spring-boot-plus运维部署(八)

    摘要:运维部署线上部署打包环境为打包后的目录设置线上数据库等敏感信息启动服务启动日志 spring-boot-plus运维部署 线上部署 打包环境为prod mvn clean package -Pprod 打包后的目录 cd target/spring-boot-plus-1.2.0.RELEASE-prod 设置线上数据库、Redis等敏感信息 vim spring-boot-plus/...

    Berwin 评论0 收藏0
  • spring-boot-plus后台快速开发框架1.0.0.RELEASE发布了

    摘要:是一套集成常用开发组件的后台快速开发框架每个人都可以独立快速高效地开发项目官网地址主要特性集成常用开发组件集公共配置日志等集成快速操作快速生成后台代码集成,可自动生成文档集成权限控制集成缓存集成消息队列集成连接池,性能和慢查询检 Introduction spring-boot-plus是一套集成spring boot常用开发组件的后台快速开发框架 Purpose 每个人都可以独立、快...

    104828720 评论0 收藏0

发表评论

0条评论

最新活动
阅读需要支付1元查看
<