[java] Intelij 导入jar包,运行找不到Class

在idea内运行时,没有问题。打包成jar运行后就找不到Class了。
打包好的jar,把它解压发现导入jar还是以.jar存在,某网友说,打包后导入的jar也会解包。所以现在很无奈图片说明图片说明图片说明图片图片图片图片

1个回答

我觉得是打包的时候没有把依赖包打包。运行mvn install 呢?

Csdn user default icon
上传中...
上传图片
插入图片
抄袭、复制答案,以达到刷声望分或其他目的的行为,在CSDN问答是严格禁止的,一经发现立刻封号。是时候展现真正的技术了!
其他相关推荐
java打jar包的问题 服务器找不到这个类

我的maven项目 在pom里面导入了阿里的fastjson依赖 在本地是可以使用的 但是打成Jar包放到服务器以后 就会报错找不到这个类 请问应该这么解决?

idea maven导入jar后报ClassNotFind

最近做毕设,开发环境时SSM已经搭建好正常运行了,后来想来加上shiro。但是shiro包在maven依赖中可以找到,都可以正常导入,但是运行后一直报找不到类。

maven仓库导入jar包后,无法引用类

``` <?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 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>hadoop.hdfs</groupId> <artifactId>xwg.hadoop</artifactId> <version>1.0-SNAPSHOT</version> <dependencies> <dependency> <groupId>org.apache.hadoop</groupId> <artifactId>hadoop-client</artifactId> <version>2.7.3</version> </dependency> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.11</version> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>1.16.14</version> </dependency> </dependencies> <repositories> <repository> <id>cloudera</id> <url>https://repository.cloudera.com/artifactory/cloudera-repos</url> </repository> </repositories> </project> ``` 以上是我的pom.xml文件 ![图片说明](https://img-ask.csdn.net/upload/201901/20/1547950591_827412.png) 我需要引用org.apache.hadoop-client下的FileSystem类,但是找不到![图片说明](https://img-ask.csdn.net/upload/201901/20/1547958098_802024.png)

intellij idea导入eclipse创建的maven web项目 jar包导入总是报错

** 软件环境**: spring+springMVC+mybatis+ mysql; tomcat服务器; maven项目 eclipse工具运行正常; **问题描述:** maven的jar包依赖没有导入成功,maven配置正常 沿用了阿里云的中心库eclipse可用; 报错截图1: ![图片说明](https://img-ask.csdn.net/upload/201811/12/1542032523_181718.png) ``` nformation:java: Errors occurred while compiling module 'miaolanghzong' Information:Eclipse compiler 4.7.2 was used to compile java sources Information:2018/11/12 21:56 - Compilation completed with 133 errors and 418 warnings in 29 s 620 ms D:\career\workspaceTest2\erzhentang\src\main\java\com\app\totalController\MemberBusinessController.java Error:Error:line (1)java: Syntax error on token "Invalid Character", delete this token Error:Error:line (13)java: The import javax.servlet.http.HttpServletRequest cannot be resolved Error:Error:line (14)java: The import javax.servlet.http.HttpServletResponse cannot be resolved Error:Error:line (47)java: The import com.google.gson cannot be resolved Error:Error:line (659)java: HttpServletRequest cannot be resolved to a type Error:Error:line (659)java: HttpServletResponse cannot be resolved to a type Error:Error:line (623)java: HttpServletRequest cannot be resolved to a type Error:Error:line (623)java: HttpServletResponse cannot be resolved to a type Error:Error:line (894)java: HttpServletRequest cannot be resolved to a type Error:Error:line (894)java: HttpServletResponse cannot be resolved to a type Error:Error:line (806)java: HttpServletRequest cannot be resolved to a type Error:Error:line (806)java: HttpServletResponse cannot be resolved to a type Error:Error:line (198)java: HttpServletRequest cannot be resolved to a type Error:Error:line (198)java: HttpServletResponse cannot be resolved to a type Error:Error:line (277)java: HttpServletRequest cannot be resolved to a type Error:Error:line (277)java: HttpServletResponse cannot be resolved to a type Error:Error:line (134)java: HttpServletRequest cannot be resolved to a type Error:Error:line (134)java: HttpServletResponse cannot be resolved to a type Error:Error:line (460)java: HttpServletRequest cannot be resolved to a type Error:Error:line (460)java: HttpServletResponse cannot be resolved to a type Error:Error:line (540)java: HttpServletRequest cannot be resolved to a type Error:Error:line (540)java: HttpServletResponse cannot be resolved to a type Error:Error:line (109)java: HttpServletRequest cannot be resolved to a type Error:Error:line (109)java: HttpServletResponse cannot be resolved to a type Error:Error:line (411)java: HttpServletRequest cannot be resolved to a type Error:Error:line (411)java: HttpServletResponse cannot be resolved to a type Warning:Warning:line (114)java: The static method sendCode(java.lang.String) from the type com.app.util.Alidayu should be accessed in a static way Warning:Warning:line (154)java: The static method md5Encode(java.lang.String) from the type com.app.util.MD5Util should be accessed in a static way Warning:Warning:line (207)java: The static method md5Encode(java.lang.String) from the type com.app.util.MD5Util should be accessed in a static way Warning:Warning:line (286)java: The static method md5Encode(java.lang.String) from the type com.app.util.MD5Util should be accessed in a static way Warning:Warning:line (421)java: The static method md5Encode(java.lang.String) from the type com.app.util.MD5Util should be accessed in a static way Warning:Warning:line (469)java: The static method md5Encode(java.lang.String) from the type com.app.util.MD5Util should be accessed in a static way Warning:Warning:line (549)java: The static method md5Encode(java.lang.String) from the type com.app.util.MD5Util should be accessed in a static way D:\career\workspaceTest2\erzhentang\src\main\java\com\app\common\LoginFilter.java Error:Error:line (23)java: Filter cannot be resolved to a type Error:Error:line (37)java: ServletException cannot be resolved to a type Error:Error:line (36)java: ServletRequest cannot be resolved to a type Error:Error:line (36)java: ServletResponse cannot be resolved to a type Error:Error:line (37)java: FilterChain cannot be resolved to a type Error:Error:line (106)java: ServletException cannot be resolved to a type Error:Error:line (106)java: FilterConfig cannot be resolved to a type Error:Error:line (7)java: The import javax.servlet.Filter cannot be resolved Error:Error:line (8)java: The import javax.servlet.FilterChain cannot be resolved Error:Error:line (9)java: The import javax.servlet.FilterConfig cannot be resolved Error:Error:line (10)java: The import javax.servlet.ServletException cannot be resolved Error:Error:line (11)java: The import javax.servlet.ServletRequest cannot be resolved Error:Error:line (12)java: The import javax.servlet.ServletResponse cannot be resolved Error:Error:line (13)java: The import javax.servlet.http.HttpServletRequest cannot be resolved Error:Error:line (14)java: The import javax.servlet.http.HttpServletResponse cannot be resolved Error:Error:line (15)java: The import javax.servlet.http.HttpSession cannot be resolved Error:Error:line (24)java: FilterConfig cannot be resolved to a type Warning:Warning:line (26)java: java.util.List is a raw type. References to generic type java.util.List<E> should be parameterized Warning:Warning:line (28)java: java.util.List is a raw type. References to generic type java.util.List<E> should be parameterized Error:Error:line (33)java: FilterConfig cannot be resolved to a type Error:Error:line (39)java: HttpServletRequest cannot be resolved to a type Error:Error:line (39)java: HttpServletRequest cannot be resolved to a type Error:Error:line (40)java: HttpServletResponse cannot be resolved to a type Error:Error:line (40)java: HttpServletResponse cannot be resolved to a type Error:Error:line (41)java: HttpSession cannot be resolved to a type Error:Error:line (107)java: FilterConfig cannot be resolved to a type Error:Error:line (108)java: FilterConfig cannot be resolved to a type Error:Error:line (113)java: FilterConfig cannot be resolved to a type D:\career\workspaceTest2\erzhentang\src\main\java\com\app\dao\impl\MemberDaoImpl.java Warning:Warning:line (42)java: java.util.Map is a raw type. References to generic type java.util.Map<K,V> should be parameterized Warning:Warning:line (63)java: java.util.Map is a raw type. References to generic type java.util.Map<K,V> should be parameterized Warning:Warning:line (110)java: java.util.Map is a raw type. References to generic type java.util.Map<K,V> should be parameterized Warning:Warning:line (9)java: The import com.app.bean.Menu is never used D:\career\workspaceTest2\erzhentang\src\main\java\com\app\dao\impl\EarProblemDaoImpl.java Warning:Warning:line (18)java: java.util.Map is a raw type. References to generic type java.util.Map<K,V> should be parameterized Warning:Warning:line (48)java: java.util.Map is a raw type. References to generic type java.util.Map<K,V> should be parameterized D:\career\workspaceTest2\erzhentang\src\main\java\com\app\dao\impl\BodyConclusionDaoImpl.java Warning:Warning:line (25)java: java.util.Map is a raw type. References to generic type java.util.Map<K,V> should be parameterized Warning:Warning:line (11)java: The import com.app.bean.BodyConclusionWuxing is never used D:\career\workspaceTest2\erzhentang\src\main\java\com\app\dao\mapper\EarDisease100Mapper.java Warning:Warning:line (14)java: java.util.Map is a raw type. References to generic type java.util.Map<K,V> should be parameterized D:\career\workspaceTest2\erzhentang\src\main\java\com\app\dao\BlueToochMacDao.java Warning:Warning:line (12)java: java.util.Map is a raw type. References to generic type java.util.Map<K,V> should be parameterized Warning:Warning:line (14)java: java.util.Map is a raw type. References to generic type java.util.Map<K,V> should be parameterized D:\career\workspaceTest2\erzhentang\src\main\java\com\app\dao\EarScanC ``` ![图片说明](https://img-ask.csdn.net/upload/201811/12/1542031436_513761.png) ![图片说明](https://img-ask.csdn.net/upload/201811/12/1542031687_784746.png) ![图片说明](https://img-ask.csdn.net/upload/201811/12/1542031723_457809.png) ![图片说明](https://img-ask.csdn.net/upload/201811/12/1542031745_434340.png) ![图片说明](https://img-ask.csdn.net/upload/201811/12/1542031762_172605.png) ![图片说明](https://img-ask.csdn.net/upload/201811/12/1542031776_649119.png)

求java大神帮忙,java使用MAVEN编译时提示找不到类,但是类是属于rt.jar的

java 版本: 1.6.0_10-rc2 maven 版本: 3.0.4 maven编译插件 `<plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <configuration> <source>1.6</source> <target>1.6</target> <encoding>utf8</encoding> </configuration> </plugin>` 运行mvn clean compile后build failure, 错误原因: `ECG2ServiceImpl.java:18: package com.sun.org.apache.xml.internal.security.exceptions does not exist ECG2ServiceImpl.java:19: package com.sun.org.apache.xml.internal.security.utils does not exist` 这2个类是属于rt.jar里的,也就是JRE里的,为什么会引用不到呢? 已经尝试过在pom中添加 `<compilerArguments> <verbose /> <bootclasspath>${JAVA_HOME}/lib/rt.jar</bootclasspath> </compilerArguments>` 也没有效果,求助!

idea引入gradle项目后,明明已经下载了依赖的jar包,但为什么还是提示找不到类?

![图片说明](https://img-ask.csdn.net/upload/201905/07/1557212896_570048.png) 如图,已经引入了这个jar包,但是编译器还是提示找不到这个类,无法引入,请问大神们怎么解决呢?

spring boot工程在intellij idea里打jar包以后无法运行

报错如下: ![图片说明](https://img-ask.csdn.net/upload/201708/17/1502941031_821648.png) ![图片说明](https://img-ask.csdn.net/upload/201708/17/1502941047_238270.png)

IDEA 导gradle找不到类 jar包等 (希望尽可能详细,最好步骤能明白)

1. 图1导入,图2报错 , 2. 图3local gradle distribution 换到现在的use default gradle wrapper 3. 图4报错 4. 图5图6 Main 这个类无法引用 src 下 main.java.com.``ActionCallback.java的这些类 5. 而 这些类( ActionCallback.java )也无法引用 java.io.IOException 6. ![图片说明](https://img-ask.csdn.net/upload/201705/17/1495031725_693361.png) 7. ![图片说明](https://img-ask.csdn.net/upload/201705/17/1495031741_988193.png) 8. ![图片说明](https://img-ask.csdn.net/upload/201705/17/1495031762_388415.png) 9. ![图片说明](https://img-ask.csdn.net/upload/201705/17/1495031780_313030.png) 10. ![图片说明](https://img-ask.csdn.net/upload/201705/17/1495031797_775367.png) 11. ![图片说明](https://img-ask.csdn.net/upload/201705/17/1495031816_197785.png)

Maven引入的jar包无法被找到?

使用IDEA IDE构建Maven项目,其他的依赖可以正常导入、使用,今天尝试集成阿里的P3C-PMD进行静态代码检查,遇到了如下问题: ![图片说明](https://img-ask.csdn.net/upload/201907/26/1564121475_719124.jpg) 提示找不到对应的类,但是在IDE中已经可以看到Maven成功下载了该jar包,![图片说明](https://img-ask.csdn.net/upload/201907/26/1564121534_318248.jpg) 与该依赖相关的POM.xml如下: ``` <dependency> <groupId>com.alibaba.p3c</groupId> <artifactId>p3c-pmd</artifactId> <version>2.0.0</version> </dependency> ``` ``` <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-pmd-plugin</artifactId> <configuration> <rulesets> <ruleset>/src/main/resources/rulesets/ali-comment.xml</ruleset> <ruleset>/src/main/resources/rulesets/ali-concurrent.xml</ruleset> <ruleset>/src/main/resources/rulesets/ali-constant.xml</ruleset> <ruleset>/src/main/resources/rulesets/ali-exception.xml</ruleset> <ruleset>/src/main/resources/rulesets/ali-flowcontrol.xml</ruleset> <ruleset>/src/main/resources/rulesets/ali-naming.xml</ruleset> <ruleset>/src/main/resources/rulesets/ali-oop.xml</ruleset> <ruleset>/src/main/resources/rulesets/ali-orm.xml</ruleset> <ruleset>/src/main/resources/rulesets/ali-other.xml</ruleset> <ruleset>/src/main/resources/rulesets/ali-set.xml</ruleset> </rulesets> <printFailingErrors>true</printFailingErrors> </configuration> <version>3.8</version> </plugin> ```

Eclipse能够正常运行,intellij 就会报下面的异常

Spring boot框架 maven 项目,Eclipse能够正常运行,intellij 就会报下面的异常: 雪中跪求在线等啊~~! java.lang.IllegalStateException: ApplicationEventMulticaster not initialized - call 'refresh' before multicasting events via the context: org.springframework.context.annotation.AnnotationConfigApplicationContext@2111fce: startup date [Wed Jan 25 09:46:39 CST 2017]; root of context hierarchy at org.springframework.context.support.AbstractApplicationContext.getApplicationEventMulticaster(AbstractApplicationContext.java:404) [spring-context-4.3.4.RELEASE.jar:4.3.4.RELEASE] at org.springframework.context.support.ApplicationListenerDetector.postProcessBeforeDestruction(ApplicationListenerDetector.java:97) ~[spring-context-4.3.4.RELEASE.jar:4.3.4.RELEASE] at org.springframework.beans.factory.support.DisposableBeanAdapter.destroy(DisposableBeanAdapter.java:253) ~[spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroyBean(DefaultSingletonBeanRegistry.java:578) [spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingleton(DefaultSingletonBeanRegistry.java:554) [spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingleton(DefaultListableBeanFactory.java:954) [spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE] at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.destroySingletons(DefaultSingletonBeanRegistry.java:523) [spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE] at org.springframework.beans.factory.support.DefaultListableBeanFactory.destroySingletons(DefaultListableBeanFactory.java:961) [spring-beans-4.3.4.RELEASE.jar:4.3.4.RELEASE] at org.springframework.context.support.AbstractApplicationContext.destroyBeans(AbstractApplicationContext.java:1033) [spring-context-4.3.4.RELEASE.jar:4.3.4.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:555) [spring-context-4.3.4.RELEASE.jar:4.3.4.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:761) [spring-boot-1.4.2.RELEASE.jar:1.4.2.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:371) [spring-boot-1.4.2.RELEASE.jar:1.4.2.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) [spring-boot-1.4.2.RELEASE.jar:1.4.2.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1186) [spring-boot-1.4.2.RELEASE.jar:1.4.2.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1175) [spring-boot-1.4.2.RELEASE.jar:1.4.2.RELEASE] at com.lynn.sale.Application.main(Application.java:12) [classes/:na] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.7.0_79] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) ~[na:1.7.0_79] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.7.0_79] at java.lang.reflect.Method.invoke(Method.java:606) ~[na:1.7.0_79] at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147) [idea_rt.jar:na] 2017-01-25 09:46:39.338 ERROR 5776 --- [ main] o.s.boot.SpringApplication : Application startup failed org.springframework.beans.factory.BeanDefinitionStoreException: Failed to parse configuration class [com.lynn.sale.Application]; nested exception is org.springframework.core.NestedIOException: Failed to load class [javax.servlet.Filter]; nested exception is java.lang.ClassNotFoundException: javax.servlet.Filter at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:180) ~[spring-context-4.3.4.RELEASE.jar:4.3.4.RELEASE] at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:324) ~[spring-context-4.3.4.RELEASE.jar:4.3.4.RELEASE] at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:246) ~[spring-context-4.3.4.RELEASE.jar:4.3.4.RELEASE] at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:270) ~[spring-context-4.3.4.RELEASE.jar:4.3.4.RELEASE] at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:93) ~[spring-context-4.3.4.RELEASE.jar:4.3.4.RELEASE] at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:686) ~[spring-context-4.3.4.RELEASE.jar:4.3.4.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:524) ~[spring-context-4.3.4.RELEASE.jar:4.3.4.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:761) [spring-boot-1.4.2.RELEASE.jar:1.4.2.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:371) [spring-boot-1.4.2.RELEASE.jar:1.4.2.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) [spring-boot-1.4.2.RELEASE.jar:1.4.2.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1186) [spring-boot-1.4.2.RELEASE.jar:1.4.2.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1175) [spring-boot-1.4.2.RELEASE.jar:1.4.2.RELEASE] at com.lynn.sale.Application.main(Application.java:12) [classes/:na] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.7.0_79] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) ~[na:1.7.0_79] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.7.0_79] at java.lang.reflect.Method.invoke(Method.java:606) ~[na:1.7.0_79] at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147) [idea_rt.jar:na] Caused by: org.springframework.core.NestedIOException: Failed to load class [javax.servlet.Filter]; nested exception is java.lang.ClassNotFoundException: javax.servlet.Filter at org.springframework.context.annotation.ConfigurationClassParser.asSourceClass(ConfigurationClassParser.java:630) ~[spring-context-4.3.4.RELEASE.jar:4.3.4.RELEASE] at org.springframework.context.annotation.ConfigurationClassParser$SourceClass.getInterfaces(ConfigurationClassParser.java:809) ~[spring-context-4.3.4.RELEASE.jar:4.3.4.RELEASE] at org.springframework.context.annotation.ConfigurationClassParser.processInterfaces(ConfigurationClassParser.java:343) ~[spring-context-4.3.4.RELEASE.jar:4.3.4.RELEASE] at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:300) ~[spring-context-4.3.4.RELEASE.jar:4.3.4.RELEASE] at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:230) ~[spring-context-4.3.4.RELEASE.jar:4.3.4.RELEASE] at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:189) ~[spring-context-4.3.4.RELEASE.jar:4.3.4.RELEASE] at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:272) ~[spring-context-4.3.4.RELEASE.jar:4.3.4.RELEASE] at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:230) ~[spring-context-4.3.4.RELEASE.jar:4.3.4.RELEASE] at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:197) ~[spring-context-4.3.4.RELEASE.jar:4.3.4.RELEASE] at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:166) ~[spring-context-4.3.4.RELEASE.jar:4.3.4.RELEASE] ... 17 common frames omitted Caused by: java.lang.ClassNotFoundException: javax.servlet.Filter at java.net.URLClassLoader$1.run(URLClassLoader.java:366) ~[na:1.7.0_79] at java.net.URLClassLoader$1.run(URLClassLoader.java:355) ~[na:1.7.0_79] at java.security.AccessController.doPrivileged(Native Method) ~[na:1.7.0_79] at java.net.URLClassLoader.findClass(URLClassLoader.java:354) ~[na:1.7.0_79] at java.lang.ClassLoader.loadClass(ClassLoader.java:425) ~[na:1.7.0_79] at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) ~[na:1.7.0_79] at java.lang.ClassLoader.loadClass(ClassLoader.java:358) ~[na:1.7.0_79] at org.springframework.context.annotation.ConfigurationClassParser.asSourceClass(ConfigurationClassParser.java:627) ~[spring-context-4.3.4.RELEASE.jar:4.3.4.RELEASE] ... 26 common frames omitted

vscode 将java文件放到一个包时就会出现“找不到或无法加载主类java.lang.NoClassDefFoundError”的错误

![图片说明](https://img-ask.csdn.net/upload/202003/31/1585653163_254475.png) 当我加上第一句时就会出现占不到或无法加载主类的错误,左边的main1.class没有变颜色,但是就是在那个文件夹下 ![图片说明](https://img-ask.csdn.net/upload/202003/31/1585653266_939556.png) 把第一句去掉后就正常了

Intelliji Idea开发ssh项目部署到服务器上的tomcat无法运行。求教!

在本地tomcat环境是可以运行的。 struts2-convention-plugin-2.5.13.jar,这个jar包不知道发生什么错误。 错误日志提示如下: 20-Sep-2017 18:46:27.428 INFO [http-nio-8080-exec-23] org.apache.catalina.core.ApplicationContext.log HTMLManager: start: Starting web application '/myroom' 20-Sep-2017 18:46:28.548 INFO [http-nio-8080-exec-23] org.apache.jasper.servlet.TldScanner.scanJars At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time. 20-Sep-2017 18:46:28.552 INFO [http-nio-8080-exec-23] org.apache.catalina.core.ApplicationContext.log No Spring WebApplicationInitializer types detected on classpath 20-Sep-2017 18:46:28.644 INFO [http-nio-8080-exec-23] org.apache.catalina.core.ApplicationContext.log Initializing Spring root WebApplicationContext 20-Sep-2017 18:46:31.102 SEVERE [http-nio-8080-exec-23] org.apache.catalina.core.StandardContext.filterStart Exception starting filter [struts2] Unable to load configuration. - bean - jar:file:/usr/local/apache-tomcat-9.0.0.M26/webapps/myroom/WEB-INF/lib/struts2-convention-plugin-2.5.13.jar!/struts-plugin.xml:32:155 at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:499) at org.apache.struts2.dispatcher.InitOperations.initDispatcher(InitOperations.java:75) at org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:63) at org.apache.catalina.core.ApplicationFilterConfig.initFilter(ApplicationFilterConfig.java:283) at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:264) at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:108) at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4491) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5131) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.manager.ManagerServlet.start(ManagerServlet.java:1303) at org.apache.catalina.manager.HTMLManagerServlet.start(HTMLManagerServlet.java:665) at org.apache.catalina.manager.HTMLManagerServlet.doPost(HTMLManagerServlet.java:211) at javax.servlet.http.HttpServlet.service(HttpServlet.java:660) at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.catalina.filters.CsrfPreventionFilter.doFilter(CsrfPreventionFilter.java:136) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:592) at org.apache.catalina.valves.RequestFilterValve.process(RequestFilterValve.java:348) at org.apache.catalina.valves.RemoteAddrValve.invoke(RemoteAddrValve.java:52) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:651) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:498) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:796) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1374) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:748) Caused by: Unable to load configuration. - bean - jar:file:/usr/local/apache-tomcat-9.0.0.M26/webapps/myroom/WEB-INF/lib/struts2-convention-plugin-2.5.13.jar!/struts-plugin.xml:32:155 at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:70) at org.apache.struts2.dispatcher.Dispatcher.getContainer(Dispatcher.java:906) at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:445) at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:486) ... 40 more Caused by: Unable to load bean: type:org.apache.struts2.convention.ActionConfigBuilder class:org.apache.struts2.convention.PackageBasedActionConfigBuilder - bean - jar:file:/usr/local/apache-tomcat-9.0.0.M26/webapps/myroom/WEB-INF/lib/struts2-convention-plugin-2.5.13.jar!/struts-plugin.xml:32:155 at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:247) at org.apache.struts2.config.StrutsXmlConfigurationProvider.register(StrutsXmlConfigurationProvider.java:98) at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:240) at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:67) ... 43 more Caused by: java.lang.IncompatibleClassChangeError: Implementing class at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:763) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at org.apache.catalina.loader.WebappClassLoaderBase.findClassInternal(WebappClassLoaderBase.java:2257) at org.apache.catalina.loader.WebappClassLoaderBase.findClass(WebappClassLoaderBase.java:799) at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1238) at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1104) at java.lang.Class.getDeclaredConstructors0(Native Method) at java.lang.Class.privateGetDeclaredConstructors(Class.java:2671) at java.lang.Class.getDeclaredConstructors(Class.java:2020) at com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:237) ... 46 more 20-Sep-2017 18:46:31.104 SEVERE [http-nio-8080-exec-23] org.apache.catalina.core.StandardContext.startInternal One or more Filters failed to start. Full details will be found in the appropriate container log file 20-Sep-2017 18:46:31.104 SEVERE [http-nio-8080-exec-23] org.apache.catalina.core.StandardContext.startInternal Context [/myroom] startup failed due to previous errors 20-Sep-2017 18:46:31.104 INFO [http-nio-8080-exec-23] org.apache.catalina.core.ApplicationContext.log Closing Spring root WebApplicationContext 20-Sep-2017 18:46:31.129 WARNING [http-nio-8080-exec-23] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesJdbc The web application [myroom] registered the JDBC driver [com.alibaba.druid.proxy.DruidDriver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered. 20-Sep-2017 18:46:31.130 WARNING [http-nio-8080-exec-23] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesJdbc The web application [myroom] registered the JDBC driver [com.mysql.jdbc.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered. 20-Sep-2017 18:46:31.130 WARNING [http-nio-8080-exec-23] org.apache.catalina.loader.WebappClassLoaderBase.clearReferencesThreads The web application [myroom] appears to have started a thread named [Abandoned connection cleanup thread] but has failed to stop it. This is very likely to create a memory leak. Stack trace of thread: java.lang.Object.wait(Native Method) java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:143) com.mysql.jdbc.AbandonedConnectionCleanupThread.run(AbandonedConnectionCleanupThread.java:43) 20-Sep-2017 18:46:31.137 INFO [http-nio-8080-exec-23] org.apache.catalina.core.ApplicationContext.log HTMLManager: list: Listing contexts for virtual host '47.94.164.52'

Intellij idea中创建java maven项目引用包出错

![图片说明](https://img-ask.csdn.net/upload/201711/09/1510234697_37781.png) 如图所示 提示connot resolve symbol 'XXXX' 请各位帮忙指点

idea import 引入类,没有显示想要的类。

![获取不到期望类](https://img-ask.csdn.net/upload/201607/12/1468285339_61919.png) ![类依旧能正常使用](https://img-ask.csdn.net/upload/201607/12/1468285286_127348.png) import导入testng的Test标签类,提示导入类里没有Test,但手写完毕后还是可以正常使用。

IntelliJ IDEA Struts2-2.3 启动过滤器异常

并不是2.5和2.3 ng的问题,我在MyEclipse上就可以启动成功,但是换用IDEA就出现这种情况,不知道哪里有错 # tomcat报错: ``` java.lang.ClassNotFoundException: org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1363) at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1186) at org.apache.catalina.core.DefaultInstanceManager.loadClass(DefaultInstanceManager.java:540) at org.apache.catalina.core.DefaultInstanceManager.loadClassMaybePrivileged(DefaultInstanceManager.java:521) at org.apache.catalina.core.DefaultInstanceManager.newInstance(DefaultInstanceManager.java:150) at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:249) at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:102) at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4516) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5162) ``` # web.xml ``` <?xml version="1.0" encoding="UTF-8"?> <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd" version="4.0"> <filter> <filter-name>struts2</filter-name> <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class> </filter> <filter-mapping> <filter-name>struts2</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app> ``` # 导入的struts2 jar包 ![图片说明](https://img-ask.csdn.net/upload/201905/16/1557992098_188577.png) **而且我下面也有这个文件啊、** ![图片说明](https://img-ask.csdn.net/upload/201905/16/1557992708_377327.png)

用main方法启动成功,但是用外置tomacat启动spring boot项目报错

用main方法启动成功,但是用外置tomacat启动spring boot项目报xia'm错: 2020-02-11 19:33:30.588 INFO 12292 --- [on(2)-127.0.0.1] com.wisezone.docker.api.TestDemo : No active profile set, falling back to default profiles: default 2020-02-11 19:33:30.983 WARN 12292 --- [on(2)-127.0.0.1] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanDefinitionStoreException: Failed to parse configuration class [com.wisezone.docker.api.TestDemo]; nested exception is java.io.FileNotFoundException: class path resource [common/controller/BaseController.class] cannot be opened because it does not exist 2020-02-11 19:33:31.090 ERROR 12292 --- [on(2)-127.0.0.1] o.s.boot.SpringApplication : Application run failed org.springframework.beans.factory.BeanDefinitionStoreException: Failed to parse configuration class [com.wisezone.docker.api.TestDemo]; nested exception is java.io.FileNotFoundException: class path resource [common/controller/BaseController.class] cannot be opened because it does not exist at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:184) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:319) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:236) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:275) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:95) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:706) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:532) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:141) ~[spring-boot-2.2.4.RELEASE.jar:2.2.4.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:747) ~[spring-boot-2.2.4.RELEASE.jar:2.2.4.RELEASE] at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) ~[spring-boot-2.2.4.RELEASE.jar:2.2.4.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) ~[spring-boot-2.2.4.RELEASE.jar:2.2.4.RELEASE] at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.run(SpringBootServletInitializer.java:152) [spring-boot-2.2.4.RELEASE.jar:2.2.4.RELEASE] at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:132) [spring-boot-2.2.4.RELEASE.jar:2.2.4.RELEASE] at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:92) [spring-boot-2.2.4.RELEASE.jar:2.2.4.RELEASE] at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:172) [spring-web-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5135) [catalina.jar:9.0.24] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) [catalina.jar:9.0.24] at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:717) [catalina.jar:9.0.24] at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:690) [catalina.jar:9.0.24] 11-Feb-2020 19:33:31.092 严重 [RMI TCP Connection(2)-127.0.0.1] org.apache.tomcat.util.modeler.BaseModelMBean.invoke Exception invoking method [manageApp] at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:705) [catalina.jar:9.0.24] java.lang.IllegalStateException: Error starting child at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1728) [catalina.jar:9.0.24] at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:720) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_91] at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:690) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_91] at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:705) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_91] at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1728) at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_91] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:289) [tomcat-coyote.jar:9.0.24] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) [na:1.8.0_91] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) [na:1.8.0_91] at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:457) [catalina.jar:9.0.24] at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:289) at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:406) [catalina.jar:9.0.24] at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_91] at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_91] at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:457) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_91] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_91] at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:406) at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:289) [tomcat-coyote.jar:9.0.24] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) [na:1.8.0_91] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) [na:1.8.0_91] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at com.sun.jmx.remote.security.MBeanServerAccessController.invoke(MBeanServerAccessController.java:468) [na:1.8.0_91] at java.lang.reflect.Method.invoke(Method.java:498) at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468) [na:1.8.0_91] at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:289) at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76) [na:1.8.0_91] at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819) at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309) [na:1.8.0_91] at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801) at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_91] at com.sun.jmx.remote.security.MBeanServerAccessController.invoke(MBeanServerAccessController.java:468) at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1408) [na:1.8.0_91] at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468) at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829) [na:1.8.0_91] at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_91] at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_91] at java.security.AccessController.doPrivileged(Native Method) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_91] at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1408) at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_91] at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829) at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:324) [na:1.8.0_91] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.rmi.transport.Transport$1.run(Transport.java:200) [na:1.8.0_91] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.rmi.transport.Transport$1.run(Transport.java:197) [na:1.8.0_91] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_91] at sun.rmi.transport.Transport.serviceCall(Transport.java:196) [na:1.8.0_91] at java.lang.reflect.Method.invoke(Method.java:498) at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568) [na:1.8.0_91] at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:324) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826) [na:1.8.0_91] at sun.rmi.transport.Transport$1.run(Transport.java:200) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:683) [na:1.8.0_91] at sun.rmi.transport.Transport$1.run(Transport.java:197) at java.security.AccessController.doPrivileged(Native Method) [na:1.8.0_91] at java.security.AccessController.doPrivileged(Native Method) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682) [na:1.8.0_91] at sun.rmi.transport.Transport.serviceCall(Transport.java:196) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) ~[na:1.8.0_91] at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) ~[na:1.8.0_91] at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826) at java.lang.Thread.run(Thread.java:745) ~[na:1.8.0_91] at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:683) Caused by: java.io.FileNotFoundException: class path resource [common/controller/BaseController.class] cannot be opened because it does not exist at java.security.AccessController.doPrivileged(Native Method) at org.springframework.core.io.ClassPathResource.getInputStream(ClassPathResource.java:180) ~[spring-core-5.2.3.RELEASE.jar:5.2.3.RELEASE] at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682) at org.springframework.core.type.classreading.SimpleMetadataReader.getClassReader(SimpleMetadataReader.java:56) ~[spring-core-5.2.3.RELEASE.jar:5.2.3.RELEASE] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at org.springframework.core.type.classreading.SimpleMetadataReader.<init>(SimpleMetadataReader.java:50) ~[spring-core-5.2.3.RELEASE.jar:5.2.3.RELEASE] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:103) ~[spring-core-5.2.3.RELEASE.jar:5.2.3.RELEASE] at java.lang.Thread.run(Thread.java:745) Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/docker_api_war_exploded]] at org.springframework.boot.type.classreading.ConcurrentReferenceCachingMetadataReaderFactory.createMetadataReader(ConcurrentReferenceCachingMetadataReaderFactory.java:86) ~[spring-boot-2.2.4.RELEASE.jar:2.2.4.RELEASE] at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:440) at org.springframework.boot.type.classreading.ConcurrentReferenceCachingMetadataReaderFactory.getMetadataReader(ConcurrentReferenceCachingMetadataReaderFactory.java:73) ~[spring-boot-2.2.4.RELEASE.jar:2.2.4.RELEASE] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:198) at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:81) ~[spring-core-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:717) at org.springframework.context.annotation.ConfigurationClassParser.asSourceClass(ConfigurationClassParser.java:686) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE] ... 43 more at org.springframework.context.annotation.ConfigurationClassParser$SourceClass.getSuperClass(ConfigurationClassParser.java:994) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE] Caused by: org.springframework.beans.factory.BeanDefinitionStoreException: Failed to parse configuration class [com.wisezone.docker.api.TestDemo]; nested exception is java.io.FileNotFoundException: class path resource [common/controller/BaseController.class] cannot be opened because it does not exist at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:335) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:184) at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:245) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:319) at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:194) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:236) at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:298) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:275) at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:245) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:95) at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:202) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE] at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:706) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:532) at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:170) ~[spring-context-5.2.3.RELEASE.jar:5.2.3.RELEASE] ... 60 common frames omitted at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:141) at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:747) at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397) at org.springframework.boot.SpringApplication.run(SpringApplication.java:315) at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.run(SpringBootServletInitializer.java:152) at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.createRootApplicationContext(SpringBootServletInitializer.java:132) at org.springframework.boot.web.servlet.support.SpringBootServletInitializer.onStartup(SpringBootServletInitializer.java:92) at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:172) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5135) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ... 44 more Caused by: java.io.FileNotFoundException: class path resource [common/controller/BaseController.class] cannot be opened because it does not exist at org.springframework.core.io.ClassPathResource.getInputStream(ClassPathResource.java:180) at org.springframework.core.type.classreading.SimpleMetadataReader.getClassReader(SimpleMetadataReader.java:56) at org.springframework.core.type.classreading.SimpleMetadataReader.<init>(SimpleMetadataReader.java:50) at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:103) at org.springframework.boot.type.classreading.ConcurrentReferenceCachingMetadataReaderFactory.createMetadataReader(ConcurrentReferenceCachingMetadataReaderFactory.java:86) at org.springframework.boot.type.classreading.ConcurrentReferenceCachingMetadataReaderFactory.getMetadataReader(ConcurrentReferenceCachingMetadataReaderFactory.java:73) at org.springframework.core.type.classreading.SimpleMetadataReaderFactory.getMetadataReader(SimpleMetadataReaderFactory.java:81) at org.springframework.context.annotation.ConfigurationClassParser.asSourceClass(ConfigurationClassParser.java:686) at org.springframework.context.annotation.ConfigurationClassParser$SourceClass.getSuperClass(ConfigurationClassParser.java:994) at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:335) at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:245) at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:194) at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:298) at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:245) at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:202) at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:170) ... 60 more

有大神知道这个怎么解决么?好像是导入的包报错了,但是我把其他同事的包拷贝过来,还是不行。

Error starting ApplicationContext. To display the auto-configuration report re-run your application with 'debug' enabled. 2020-03-28 16:48:23,155:INFO restartedMain (AbstractApplicationContext.java:984) - Closing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@29e05166: startup date [Sat Mar 28 16:48:19 CST 2020]; parent: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@20203cbd 2020-03-28 16:48:24,403:ERROR restartedMain (SpringApplication.java:771) - Application startup failed java.lang.NoSuchMethodError: com.sun.jna.platform.win32.OleAuto.VariantClear(Lcom/sun/jna/platform/win32/Variant$VARIANT;)Lcom/sun/jna/platform/win32/WinNT$HRESULT; at oshi.util.platform.windows.WmiUtil.enumerateProperties(WmiUtil.java:561) ~[oshi-core-3.4.4.jar:3.4.4] at oshi.util.platform.windows.WmiUtil.queryWMI(WmiUtil.java:333) ~[oshi-core-3.4.4.jar:3.4.4] at oshi.util.platform.windows.WmiUtil.selectStringFrom(WmiUtil.java:214) ~[oshi-core-3.4.4.jar:3.4.4] at oshi.hardware.platform.windows.WindowsCentralProcessor.initVars(WindowsCentralProcessor.java:93) ~[oshi-core-3.4.4.jar:3.4.4] at oshi.hardware.platform.windows.WindowsCentralProcessor.<init>(WindowsCentralProcessor.java:63) ~[oshi-core-3.4.4.jar:3.4.4] at oshi.hardware.platform.windows.WindowsHardwareAbstractionLayer.getProcessor(WindowsHardwareAbstractionLayer.java:64) ~[oshi-core-3.4.4.jar:3.4.4] at com.apexsoft.aas.actuator.AasInfoContributor$1$1$1.<init>(AasInfoContributor.java:72) ~[aas-common-1.3.1-SNAPSHOT.jar:?] at com.apexsoft.aas.actuator.AasInfoContributor$1$1.<init>(AasInfoContributor.java:71) ~[aas-common-1.3.1-SNAPSHOT.jar:?] at com.apexsoft.aas.actuator.AasInfoContributor$1.<init>(AasInfoContributor.java:69) ~[aas-common-1.3.1-SNAPSHOT.jar:?] at com.apexsoft.aas.actuator.AasInfoContributor.readSystemInfo(AasInfoContributor.java:68) ~[aas-common-1.3.1-SNAPSHOT.jar:?] at com.apexsoft.aas.actuator.systeminfo.SystemInfoFetchThread.run(SystemInfoFetchThread.java:41) ~[aas-common-1.3.1-SNAPSHOT.jar:?] at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:723) ~[spring-boot-1.5.12.RELEASE.jar:1.5.12.RELEASE] at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:713) [spring-boot-1.5.12.RELEASE.jar:1.5.12.RELEASE] at org.springframework.boot.SpringApplication.afterRefresh(SpringApplication.java:703) [spring-boot-1.5.12.RELEASE.jar:1.5.12.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:304) [spring-boot-1.5.12.RELEASE.jar:1.5.12.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118) [spring-boot-1.5.12.RELEASE.jar:1.5.12.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107) [spring-boot-1.5.12.RELEASE.jar:1.5.12.RELEASE] at com.apexsoft.WebApplication.main(WebApplication.java:22) [classes/:?] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_162] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_162] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_162] at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_162] at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) [spring-boot-devtools-1.5.12.RELEASE.jar:1.5.12.RELEASE] 2020-03-28 16:48:24,410:INFO restartedMain (AbstractApplicationContext.java:984) - Closing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@20203cbd: startup date [Sat Mar 28 16:48:01 CST 2020]; parent: org.springframework.context.annotation.AnnotationConfigApplicationContext@2dc67489 2020-03-28 16:48:24,412:INFO restartedMain (DefaultLifecycleProcessor.java:356) - Stopping beans in phase 2147483647 2020-03-28 16:48:24,479:INFO restartedMain (DefaultLifecycleProcessor.java:356) - Stopping beans in phase 0 2020-03-28 16:48:24,480:INFO restartedMain (MBeanExporter.java:449) - Unregistering JMX-exposed beans on shutdown 2020-03-28 16:48:24,481:INFO restartedMain (MBeanRegistrationSupport.java:241) - Unregistering JMX-exposed beans 2020-03-28 16:48:24,481:INFO restartedMain (MBeanExporter.java:449) - Unregistering JMX-exposed beans on shutdown 2020-03-28 16:48:24,481:INFO restartedMain (MBeanRegistrationSupport.java:241) - Unregistering JMX-exposed beans 2020-03-28 16:48:25,001:INFO ThreadPoolTaskScheduler-2 (StartupRunner.java:183) - request worker bee prepare 2020-03-28 16:48:25,002:INFO ThreadPoolTaskScheduler-2 (StartupRunner.java:188) - request worker bee prepare: envInfo 2020-03-28 16:48:25,006:INFO ThreadPoolTaskScheduler-2 (StartupRunner.java:192) - request worker bee prepare: healthInfo 2020-03-28 16:48:25,010:INFO ThreadPoolTaskScheduler-2 (StartupRunner.java:196) - request worker bee start 2020-03-28 16:48:25,219:ERROR ThreadPoolTaskScheduler-2 (StartupRunner.java:211) - UNAVAILABLE: Could not find server: 192.168.3.133:2181 io.grpc.StatusRuntimeException: UNAVAILABLE: Could not find server: 192.168.3.159:3191 at io.grpc.stub.ClientCalls.toStatusRuntimeException(ClientCalls.java:235) ~[grpc-stub-1.21.0.jar:1.21.0] at io.grpc.stub.ClientCalls.getUnchecked(ClientCalls.java:216) ~[grpc-stub-1.21.0.jar:1.21.0] at io.grpc.stub.ClientCalls.blockingUnaryCall(ClientCalls.java:141) ~[grpc-stub-1.21.0.jar:1.21.0] at com.apex.ams.common.CommonGrpc$CommonBlockingStub.handle(CommonGrpc.java:358) ~[aas-protocol-1.3.1-SNAPSHOT.jar:?] at com.apex.ams.util.AasCommService.sendRequest(AasCommService.java:172) ~[aas-protocol-1.3.1-SNAPSHOT.jar:?] at com.apexsoft.aas.actuator.StartupRunner.lambda$startReadSystemInfoTask$1(StartupRunner.java:197) ~[aas-common-1.3.1-SNAPSHOT.jar:?] at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54) [spring-context-4.3.16.RELEASE.jar:4.3.16.RELEASE] at org.springframework.scheduling.concurrent.ReschedulingRunnable.run(ReschedulingRunnable.java:81) [spring-context-4.3.16.RELEASE.jar:4.3.16.RELEASE] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_162] at java.util.concurrent.FutureTask.run$$$capture(FutureTask.java:266) [?:1.8.0_162] at java.util.concurrent.FutureTask.run(FutureTask.java) [?:1.8.0_162] at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) [?:1.8.0_162] at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) [?:1.8.0_162] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:1.8.0_162] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:1.8.0_162] at java.lang.Thread.run(Thread.java:748) [?:1.8.0_162] 2020-03-28 16:48:26,696:INFO restartedMain (ShutDownHook.java:48) - Start to close global resource due to priority 2020-03-28 16:48:26,700:INFO restartedMain (ShutDownHook.java:55) - Success to close class com.apex.ams.client.AmsServiceManager 2020-03-28 16:48:26,700:INFO restartedMain (ShutDownHook.java:57) - Success to close all the resource! 2020-03-28 16:48:26,700:INFO restartedMain (ExecutorConfigurationSupport.java:202) - Shutting down ExecutorService 2020-03-28 16:48:27,512:INFO Thread-24 (ShutDownHook.java:48) - Start to close global resource due to priority 2020-03-28 16:48:27,512:INFO Thread-24 (ShutDownHook.java:57) - Success to close all the resource! Disconnected from the target VM, address: '127.0.0.1:50392', transport: 'socket' Process finished with exit code 1 ![图片说明](https://img-ask.csdn.net/upload/202003/28/1585385550_236073.png)![图片说明](https://img-ask.csdn.net/upload/202003/28/1585385563_763087.png)![图片说明](https://img-ask.csdn.net/upload/202003/28/1585385577_311794.png)![图片说明](https://img-ask.csdn.net/upload/202003/28/1585385871_267904.png)![图片说明](https://img-ask.csdn.net/upload/202003/28/1585385881_719731.png) ``` ```

jacob在intellij的使用

![图片说明](https://img-ask.csdn.net/upload/201602/06/1454701365_262328.jpg) 每次run的时候都退出了,不知道是configuration的问题还是jacob.dll没用对,跪求指导。vissim8是我想通过jacob让java调用的软件。

IDEA 导入 javaweb项目 struts的配置文件报红,但是可以运行

![图片说明](https://img-ask.csdn.net/upload/201910/12/1570871788_58911.png) 今天刚导入的,eclipes正常运行,放到idea struts的配置文件  class属性 还是 allowed-methods报红,但是不错误。求解决方案。。。感谢各位大佬。。

新手,使用Intellij Idea测试Struts2遇到的问题

Idea版本为2018.3,按照提示,Struts2版本为2.5.14,配置完毕,遇到了问题。 第一个问题就是log4j的错误,经过各种尝试,删除out-》artifact-》module-》web-inf-》web.xml,可以正常部署。 然后加入Struts2内容,跳转action时遇到404,请帮忙看看什么问题。 web.xml如下: ``` <?xml version="1.0" encoding="UTF-8"?> <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd" version="4.0"> <filter> <filter-name>struts2</filter-name> <filter-class>org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter</filter-class> </filter> <filter-mapping> <filter-name>struts2</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app> ``` struts.xml如下: ``` <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.5//EN" "http://struts.apache.org/dtds/struts-2.5.dtd"> <struts> <package name="first" namespace="/" extends="struts-default"> <action name="test" class="com.opensymphony.xwork2.ActionSupport" method="execute"> <result name="success">/success.jsp</result> </action> </package> </struts> ``` index.jsp如下: ``` <%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <title>$Title$</title> </head> <body> <form action="test.action" method="post"><input type="submit"/></form> </body> </html> ```

软件测试入门、SQL、性能测试、测试管理工具

软件测试2小时入门,让您快速了解软件测试基本知识,有系统的了解; SQL一小时,让您快速理解和掌握SQL基本语法 jmeter性能测试 ,让您快速了解主流来源性能测试工具jmeter 测试管理工具-禅道,让您快速学会禅道的使用,学会测试项目、用例、缺陷的管理、

计算机组成原理实验教程

西北工业大学计算机组成原理实验课唐都仪器实验帮助,同实验指导书。分为运算器,存储器,控制器,模型计算机,输入输出系统5个章节

Java 最常见的 200+ 面试题:面试必备

这份面试清单是从我 2015 年做了 TeamLeader 之后开始收集的,一方面是给公司招聘用,另一方面是想用它来挖掘在 Java 技术栈中,还有那些知识点是我不知道的,我想找到这些技术盲点,然后修复它,以此来提高自己的技术水平。虽然我是从 2009 年就开始参加编程工作了,但我依旧觉得自己现在要学的东西很多,并且学习这些知识,让我很有成就感和满足感,那所以何乐而不为呢? 说回面试的事,这份面试...

winfrom中嵌套html,跟html的交互

winfrom中嵌套html,跟html的交互,源码就在里面一看就懂,很简单

玩转Python-Python3基础入门

总课时80+,提供源码和相关资料 本课程从Python零基础到纯Python项目实战。内容详细,案例丰富,覆盖了Python知识的方方面面,学完后不仅对Python知识有个系统化的了解,让你从Python小白变编程大牛! 课程包含: 1.python安装 2.变量、数据类型和运算符 3.选择结构 4.循环结构 5.函数和模块 6.文件读写 7.了解面向对象 8.异常处理

程序员的兼职技能课

获取讲师答疑方式: 在付费视频第一节(触摸命令_ALL)片头有二维码及加群流程介绍 限时福利 原价99元,今日仅需39元!购课添加小助手(微信号:csdn590)按提示还可领取价值800元的编程大礼包! 讲师介绍: 苏奕嘉&nbsp;前阿里UC项目工程师 脚本开发平台官方认证满级(六级)开发者。 我将如何教会你通过【定制脚本】赚到你人生的第一桶金? 零基础程序定制脚本开发课程,是完全针对零脚本开发经验的小白而设计,课程内容共分为3大阶段: ①前期将带你掌握Q开发语言和界面交互开发能力; ②中期通过实战来制作有具体需求的定制脚本; ③后期将解锁脚本的更高阶玩法,打通任督二脉; ④应用定制脚本合法赚取额外收入的完整经验分享,带你通过程序定制脚本开发这项副业,赚取到你的第一桶金!

HoloLens2开发入门教程

本课程为HoloLens2开发入门教程,讲解部署开发环境,安装VS2019,Unity版本,Windows SDK,创建Unity项目,讲解如何使用MRTK,编辑器模拟手势交互,打包VS工程并编译部署应用到HoloLens上等。

基于VHDL的16位ALU简易设计

基于VHDL的16位ALU简易设计,可完成基本的加减、带进位加减、或、与等运算。

MFC一站式终极全套课程包

该套餐共包含从C小白到C++到MFC的全部课程,整套学下来绝对成为一名C++大牛!!!

利用Verilog实现数字秒表(基本逻辑设计分频器练习)

设置复位开关。当按下复位开关时,秒表清零并做好计时准备。在任何情况下只要按下复位开关,秒表都要无条件地进行复位操作,即使是在计时过程中也要无条件地进行清零操作。 设置启/停开关。当按下启/停开关后,将

董付国老师Python全栈学习优惠套餐

购买套餐的朋友可以关注微信公众号“Python小屋”,上传付款截图,然后领取董老师任意图书1本。

Python可以这样学(第一季:Python内功修炼)

董付国系列教材《Python程序设计基础》、《Python程序设计(第2版)》、《Python可以这样学》配套视频,讲解Python 3.5.x和3.6.x语法、内置对象用法、选择与循环以及函数设计与使用、lambda表达式用法、字符串与正则表达式应用、面向对象编程、文本文件与二进制文件操作、目录操作与系统运维、异常处理结构。

计算机操作系统 第三版.pdf

计算机操作系统 第三版 本书全面介绍了计算机系统中的一个重要软件——操作系统(OS),本书是第三版,对2001年出版的修订版的各章内容均作了较多的修改,基本上能反映当前操作系统发展的现状,但章节名称基

技术大佬:我去,你写的 switch 语句也太老土了吧

昨天早上通过远程的方式 review 了两名新来同事的代码,大部分代码都写得很漂亮,严谨的同时注释也很到位,这令我非常满意。但当我看到他们当中有一个人写的 switch 语句时,还是忍不住破口大骂:“我擦,小王,你丫写的 switch 语句也太老土了吧!” 来看看小王写的代码吧,看完不要骂我装逼啊。 private static String createPlayer(PlayerTypes p...

Vue.js 2.0之全家桶系列视频课程

基于新的Vue.js 2.3版本, 目前新全的Vue.js教学视频,让你少走弯路,直达技术前沿! 1. 包含Vue.js全家桶(vue.js、vue-router、axios、vuex、vue-cli、webpack、ElementUI等) 2. 采用笔记+代码案例的形式讲解,通俗易懂

微信公众平台开发入门

本套课程的设计完全是为初学者量身打造,课程内容由浅入深,课程讲解通俗易懂,代码实现简洁清晰。通过本课程的学习,学员能够入门微信公众平台开发,能够胜任企业级的订阅号、服务号、企业号的应用开发工作。 通过本课程的学习,学员能够对微信公众平台有一个清晰的、系统性的认识。例如,公众号是什么,它有什么特点,它能做什么,怎么开发公众号。 其次,通过本课程的学习,学员能够掌握微信公众平台开发的方法、技术和应用实现。例如,开发者文档怎么看,开发环境怎么搭建,基本的消息交互如何实现,常用的方法技巧有哪些,真实应用怎么开发。

150讲轻松搞定Python网络爬虫

【为什么学爬虫?】 &nbsp; &nbsp; &nbsp; &nbsp;1、爬虫入手容易,但是深入较难,如何写出高效率的爬虫,如何写出灵活性高可扩展的爬虫都是一项技术活。另外在爬虫过程中,经常容易遇到被反爬虫,比如字体反爬、IP识别、验证码等,如何层层攻克难点拿到想要的数据,这门课程,你都能学到! &nbsp; &nbsp; &nbsp; &nbsp;2、如果是作为一个其他行业的开发者,比如app开发,web开发,学习爬虫能让你加强对技术的认知,能够开发出更加安全的软件和网站 【课程设计】 一个完整的爬虫程序,无论大小,总体来说可以分成三个步骤,分别是: 网络请求:模拟浏览器的行为从网上抓取数据。 数据解析:将请求下来的数据进行过滤,提取我们想要的数据。 数据存储:将提取到的数据存储到硬盘或者内存中。比如用mysql数据库或者redis等。 那么本课程也是按照这几个步骤循序渐进的进行讲解,带领学生完整的掌握每个步骤的技术。另外,因为爬虫的多样性,在爬取的过程中可能会发生被反爬、效率低下等。因此我们又增加了两个章节用来提高爬虫程序的灵活性,分别是: 爬虫进阶:包括IP代理,多线程爬虫,图形验证码识别、JS加密解密、动态网页爬虫、字体反爬识别等。 Scrapy和分布式爬虫:Scrapy框架、Scrapy-redis组件、分布式爬虫等。 通过爬虫进阶的知识点我们能应付大量的反爬网站,而Scrapy框架作为一个专业的爬虫框架,使用他可以快速提高我们编写爬虫程序的效率和速度。另外如果一台机器不能满足你的需求,我们可以用分布式爬虫让多台机器帮助你快速爬取数据。 &nbsp; 从基础爬虫到商业化应用爬虫,本套课程满足您的所有需求! 【课程服务】 专属付费社群+每周三讨论会+1v1答疑

SEIR课程设计源码与相关城市数据.rar

SEIR结合学报与之前博客结合所做的一些改进,选择其中三个城市进行拟合仿真SEIR结合学报与之前博客结合所做的一些改进,选择其中三个城市进行拟合仿真SEIR结合学报与之前博客结合所做的一些改进,选择其

Python数据挖掘简易入门

&nbsp; &nbsp; &nbsp; &nbsp; 本课程为Python数据挖掘方向的入门课程,课程主要以真实数据为基础,详细介绍数据挖掘入门的流程和使用Python实现pandas与numpy在数据挖掘方向的运用,并深入学习如何运用scikit-learn调用常用的数据挖掘算法解决数据挖掘问题,为进一步深入学习数据挖掘打下扎实的基础。

2019 AI开发者大会

2019 AI开发者大会(AI ProCon 2019)是由中国IT社区CSDN主办的AI技术与产业年度盛会。多年经验淬炼,如今蓄势待发:2019年9月6-7日,大会将有近百位中美顶尖AI专家、知名企业代表以及千余名AI开发者齐聚北京,进行技术解读和产业论证。我们不空谈口号,只谈技术,诚挚邀请AI业内人士一起共铸人工智能新篇章!

Java面试题大全(2020版)

发现网上很多Java面试题都没有答案,所以花了很长时间搜集整理出来了这套Java面试题大全,希望对大家有帮助哈~ 本套Java面试题大全,全的不能再全,哈哈~ 一、Java 基础 1. JDK 和 JRE 有什么区别? JDK:Java Development Kit 的简称,java 开发工具包,提供了 java 的开发环境和运行环境。 JRE:Java Runtime Environ...

定量遥感中文版 梁顺林著 范闻捷译

这是梁顺林的定量遥感的中文版,由范闻捷等翻译的,是电子版PDF,解决了大家看英文费时费事的问题,希望大家下载看看,一定会有帮助的

GIS程序设计教程 基于ArcGIS Engine的C#开发实例

张丰,杜震洪,刘仁义编著.GIS程序设计教程 基于ArcGIS Engine的C#开发实例.浙江大学出版社,2012.05

人工智能-计算机视觉实战之路(必备算法+深度学习+项目实战)

系列课程主要分为3大阶段:(1)首先掌握计算机视觉必备算法原理,结合Opencv进行学习与练手,通过实际视项目进行案例应用展示。(2)进军当下最火的深度学习进行视觉任务实战,掌握深度学习中必备算法原理与网络模型架构。(3)结合经典深度学习框架与实战项目进行实战,基于真实数据集展开业务分析与建模实战。整体风格通俗易懂,项目驱动学习与就业面试。 建议同学们按照下列顺序来进行学习:1.Python入门视频课程 2.Opencv计算机视觉实战(Python版) 3.深度学习框架-PyTorch实战/人工智能框架实战精讲:Keras项目 4.Python-深度学习-物体检测实战 5.后续实战课程按照自己喜好选择就可以

三个项目玩转深度学习(附1G源码)

从事大数据与人工智能开发与实践约十年,钱老师亲自见证了大数据行业的发展与人工智能的从冷到热。事实证明,计算机技术的发展,算力突破,海量数据,机器人技术等,开启了第四次工业革命的序章。深度学习图像分类一直是人工智能的经典任务,是智慧零售、安防、无人驾驶等机器视觉应用领域的核心技术之一,掌握图像分类技术是机器视觉学习的重中之重。针对现有线上学习的特点与实际需求,我们开发了人工智能案例实战系列课程。打造:以项目案例实践为驱动的课程学习方式,覆盖了智能零售,智慧交通等常见领域,通过基础学习、项目案例实践、社群答疑,三维立体的方式,打造最好的学习效果。

微信小程序开发实战之番茄时钟开发

微信小程序番茄时钟视频教程,本课程将带着各位学员开发一个小程序初级实战类项目,针对只看过官方文档而又无从下手的开发者来说,可以作为一个较好的练手项目,对于有小程序开发经验的开发者而言,可以更好加深对小程序各类组件和API 的理解,为更深层次高难度的项目做铺垫。

面试了一个 31 岁程序员,让我有所触动,30岁以上的程序员该何去何从?

最近面试了一个31岁8年经验的程序猿,让我有点感慨,大龄程序猿该何去何从。

去除异常值matlab程序

数据预处理中去除异常值的程序,matlab写成

用verilog HDL语言编写的秒表

在秒表设计中,分模块书写。用在七段数码管上显示。输入频率是1KHZ.可以显示百分秒,秒,分。如要显示小时,只需修改leds里的代码和主模块代码。改程序以通过硬件电路验证。完全正确。

[透视java——反编译、修补和逆向工程技术]源代码

源代码。

相关热词 c# 开发接口 c# 中方法上面的限制 c# java 时间戳 c#单元测试入门 c# 数组转化成文本 c#实体类主外键关系设置 c# 子函数 局部 c#窗口位置设置 c# list 查询 c# 事件 执行顺序
立即提问