eclipse导入maven项目报错 

[WARN ] 2017-10-31 14:26:21,791 org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549) AbstractApplicationContext.java WARN Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping': Invocation of init method failed; nested exception is java.lang.IllegalStateException: Ambiguous mapping. Cannot map 'memberZjfController' method public java.lang.String com.kejiyun.controller.MemberZjfController.member() to {[/member]}: There is already 'memberXmfController' bean method public java.lang.String com.kejiyun.controller.MemberXmfController.member() mapped. [ERROR] 2017-10-31 14:26:21,796 org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:502) FrameworkServlet.java ERROR Context initialization failed org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping': Invocation of init method failed; nested exception is java.lang.IllegalStateException: Ambiguous mapping. Cannot map 'memberZjfController' method public java.lang.String com.kejiyun.controller.MemberZjfController.member() to {[/member]}: There is already 'memberXmfController' bean method Caused by: java.lang.IllegalStateException: Ambiguous mapping. Cannot map 'memberZjfController' method public java.lang.String com.kejiyun.controller.MemberZjfController.member() to {[/member]}: There is already 'memberXmfController' bean method 严重: StandardWrapper.Throwable org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping': Invocation of init method failed; nested exception is java.lang.IllegalStateException: Ambiguous mapping. Cannot map 'memberZjfController' method public java.lang.String com.kejiyun.controller.MemberZjfController.member() to {[/member]}: There is already 'memberXmfController' bean method Caused by: java.lang.IllegalStateException: Ambiguous mapping. Cannot map 'memberZjfController' method public java.lang.String com.kejiyun.controller.MemberZjfController.member() to {[/member]}: There is already 'memberXmfController' bean method 严重: Servlet [springDispatcherServlet] in web application [/kejiyun_hrj] threw load() exception java.lang.IllegalStateException: Ambiguous mapping. Cannot map 'memberZjfController' method public java.lang.String com.kejiyun.controller.MemberZjfController.member() to {[/member]}: There is already 'memberXmfController' bean method 严重: StandardServer.await: create[localhost:8005]: java.net.BindException: Address already in use: JVM_Bind 我用tomcat插件时，一启动tomcat就报了这些错误，还有几个提示“严重”，看不懂，大佬帮我看下

第一次装maven，按步骤是装好了。导入第一个maven项目就报错了，求大神不吝赐教！ 以下是错误提示 Errors occurred during the build. Errors running builder 'Maven Project Builder' on project 'jeecg'. Could not calculate build plan: Plugin org.apache.maven.plugins:maven-resources-plugin:2.6 or one of its dependencies could not be resolved: Cannot access central (https://repo.maven.apache.org/maven2) in offline mode and the artifact org.apache.maven.plugins:maven-resources-plugin:jar:2.6 has not been downloaded from it before. Plugin org.apache.maven.plugins:maven-resources-plugin:2.6 or one of its dependencies could not be resolved: Cannot access central (https://repo.maven.apache.org/maven2) in offline mode and the artifact org.apache.maven.plugins:maven-resources-plugin:jar:2.6 has not been downloaded from it before. Could not calculate build plan: Plugin org.apache.maven.plugins:maven-resources-plugin:2.6 or one of its dependencies could not be resolved: Cannot access central (https://repo.maven.apache.org/maven2) in offline mode and the artifact org.apache.maven.plugins:maven-resources-plugin:jar:2.6 has not been downloaded from it before. Plugin org.apache.maven.plugins:maven-resources-plugin:2.6 or one of its dependencies could not be resolved: Cannot access central (https://repo.maven.apache.org/maven2) in offline mode and the artifact org.apache.maven.plugins:maven-resources-plugin:jar:2.6 has not been downloaded from it before.

maven这种配置没有<version> 为什么不报错，有的就报错，<version>到底是不是必须的 <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-websocket</artifactId> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context-support</artifactId> </dependency>

Errors occurred during the build. Errors running builder 'Integrated External Tool Builder' on project 'koyoo-MySQL'. Launch configuration type id "org.maven.ide.eclipse.Maven2BuilderConfigurationType" does not exist. Possible causes: Missing specification of a launch type (missing plug-in) Incorrect launch configuration XML Launch configuration type id "org.maven.ide.eclipse.Maven2BuilderConfigurationType" does not exist. Possible causes: Missing specification of a launch type (missing plug-in) Incorrect launch configuration XML

我先说一下我的工作环境： eclipse10，maven3.3.1，jdk1.7，Tomcat7，数据库用的是mysql 项目下载网址：https://github.com/Jdoing/myweb 博客网址：http://lib.csdn.net/article/java/2933 我刚下载的时候还不能直接部署到Tomcat7，后来我就把导入的maven项目转成web项目了，可以成功部署了，但是却遇到了下面几个问题： 1、我把导入的项目转成web项目，但是很多js插件报错，而且经常跳出下面这个错误Errors occurred during the build.Errors running builder 'Maven Project Builder' on project 'myweb'.8194 2、我用maven install打包的时候出现错误，有可能是第一个错误引起的，导致无法打成war包 3、第一次接触maven项目，不知道具体本地访问项目组jsp页面的访问路径。 本人小白，第一次接触maven项目，遇到问题百度了好久都没有解决，所以在这里向各位大神求助，谢谢。

  java.lang.Exception: classworlds configuration not specified nor found in the classpath at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:406) at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356) maven用的是3.5.4的

Errors occurred during the build. Errors running builder 'Maven Project Builder' on project 'd'. Could not calculate build plan: Plugin org.codehaus.mojo:aspectj-maven-plugin:1.8 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.codehaus.mojo:aspectj-maven-plugin:jar:1.8 Plugin org.codehaus.mojo:aspectj-maven-plugin:1.8 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.codehaus.mojo:aspectj-maven-plugin:jar:1.8 Could not calculate build plan: Plugin org.codehaus.mojo:aspectj-maven-plugin:1.8 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.codehaus.mojo:aspectj-maven-plugin:jar:1.8 Plugin org.codehaus.mojo:aspectj-maven-plugin:1.8 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.codehaus.mojo:aspectj-maven-plugin:jar:1.8

项目一下载jar包就报这个错误，而且这个jar包本身是在.m2的文件夹下是存在的，不知道为什么就报错，删除重新下载也不行，整个文件夹删除下载也不行，设置强制下载也不行，我现在都无语了，maven 不知道是怎么回事，是不是重装系统的问题啊，我的配置没问题啊，在cmd下查看版本号环境变量也没问题： C:\Users\dl>mvn -v Apache Maven 3.3.9 (bb52d8502b132ec0a5a3f4c09453c07478323dc5; 2015-11-11T00:41:47+08:00) Maven home: C:\apache-maven-3.3.9\bin\.. Java version: 1.7.0_79, vendor: Oracle Corporation Java home: C:\Program Files\Java\jdk1.7.0_79\jre Default locale: zh_CN, platform encoding: GBK OS name: "windows 8.1", version: "6.3", arch: "amd64", family: "windows" **在cmd下用 mvn help:system 命令可以下载jar包，而且很快，eclipe下右键update就不行，运行一会九堡下边的错误.** 还有就是jar下载特别特别慢，基本上是下载不下来，重装之前不这样啊，下载一会就 报边的错误。.m2文件夹下全是sha1..properties 文件，就是下载不下来jar包，自己下载，放进去也不管用，照样重新下载。 报的下面的错误 Errors occurred during the build. Errors running builder 'Maven Project Builder' on project 'plate-prototype'. Could not calculate build plan: Plugin org.apache.maven.plugins:maven-resources-plugin:2.6 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-resources-plugin:jar:2.6 Plugin org.apache.maven.plugins:maven-resources-plugin:2.6 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-resources-plugin:jar:2.6 Could not calculate build plan: Plugin org.apache.maven.plugins:maven-resources-plugin:2.6 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-resources-plugin:jar:2.6

开发环境： MyEclipse maven3.3.1 tomcat7.0 JDK7 现已将jeecg_database.properties和dbconfig.properties填写完毕，并且把内容溢出代码写入tomcat。现错误提示如下： com.microsoft.sqlserver.jdbc.SQLServerException: 不支持此服务器版本。目标服务器必须是 SQL Server 2000 或更高版本。

具体报错如下 SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder". SLF4J: Defaulting to no-operation (NOP) logger implementation SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details. [WARNING] [WARNING] Some problems were encountered while building the effective settings [WARNING] Unrecognised tag: 'server' (position: START_TAG seen ...</proxy-->\n\t<server>... @264:10) @ C:\Users\Administrator\.m2\settings.xml, line 264, column 10 [WARNING] [INFO] Scanning for projects... [INFO] [INFO] ------------------------------------------------------------------------ [INFO] Building babasprot Maven Webapp 0.0.1-SNAPSHOT [INFO] ------------------------------------------------------------------------ [INFO] [INFO] >>> tomcat7-maven-plugin:2.2:deploy (default-cli) @ babasprot >>> [INFO] [INFO] --- maven-resources-plugin:2.5:resources (default-resources) @ babasprot --- [debug] execute contextualize [WARNING] Using platform encoding (GBK actually) to copy filtered resources, i.e. build is platform dependent! [INFO] Copying 0 resource [INFO] [INFO] --- maven-compiler-plugin:2.3.2:compile (default-compile) @ babasprot --- [INFO] Nothing to compile - all classes are up to date [INFO] [INFO] --- maven-resources-plugin:2.5:testResources (default-testResources) @ babasprot --- [debug] execute contextualize [WARNING] Using platform encoding (GBK actually) to copy filtered resources, i.e. build is platform dependent! [INFO] Copying 0 resource [INFO] [INFO] --- maven-compiler-plugin:2.3.2:testCompile (default-testCompile) @ babasprot --- [INFO] Not compiling test sources [INFO] [INFO] --- maven-surefire-plugin:2.10:test (default-test) @ babasprot --- [INFO] Tests are skipped. [INFO] [INFO] --- maven-war-plugin:2.1.1:war (default-war) @ babasprot --- [INFO] Packaging webapp [INFO] Assembling webapp [babasprot] in [D:\java\babasprot\target\babasprot] [INFO] Processing war project [INFO] Copying webapp resources [D:\java\babasprot\src\main\webapp] [INFO] Webapp assembled in [40 msecs] [INFO] Building war: D:\java\babasprot\target\babasprot.war [WARNING] Warning: selected war files include a WEB-INF/web.xml which will be ignored (webxml attribute is missing from war task, or ignoreWebxml attribute is specified as 'true') [INFO] [INFO] <<< tomcat7-maven-plugin:2.2:deploy (default-cli) @ babasprot <<< [INFO] [INFO] --- tomcat7-maven-plugin:2.2:deploy (default-cli) @ babasprot --- [INFO] Deploying war to http://localhost:8080/ SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder". SLF4J: Defaulting to no-operation (NOP) logger implementation SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details. Uploading: http://localhost:8080/manager/text/deploy?path=%2F Uploaded: http://localhost:8080/manager/text/deploy?path=%2F (3 KB) [ERROR] Tomcat return http status error: 401, Reason Phrase: Unauthorized [INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 2.704s [INFO] Finished at: Fri Jun 10 15:43:40 CST 2016 [INFO] Final Memory: 9M/22M [INFO] ------------------------------------------------------------------------ [ERROR] Failed to execute goal org.apache.tomcat.maven:tomcat7-maven-plugin:2.2:deploy (default-cli) on project babasprot: Tomcat return http status error: 401, Reason Phrase: Unauthorized: [ERROR] <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> [ERROR] <html> [ERROR] <head> [ERROR] <title>401 Unauthorized</title> [ERROR] <style type="text/css"> [ERROR] <!-- [ERROR] BODY {font-family:Tahoma,Arial,sans-serif;color:black;background-color:white;font-size:12px;} [ERROR] H1 {font-family:Tahoma,Arial,sans-serif;color:white;background-color:#525D76;font-size:22px;} [ERROR] PRE, TT {border: 1px dotted #525D76} [ERROR] A {color : black;}A.name {color : black;} [ERROR] --> [ERROR] </style> [ERROR] </head> [ERROR] <body> [ERROR] <h1>401 Unauthorized</h1> [ERROR] <p> [ERROR] You are not authorized to view this page. If you have not changed [ERROR] any configuration files, please examine the file [ERROR] <tt>conf/tomcat-users.xml</tt> in your installation. That [ERROR] file must contain the credentials to let you use this webapp. [ERROR] </p> [ERROR] <p> [ERROR] For example, to add the <tt>manager-gui</tt> role to a user named [ERROR] <tt>tomcat</tt> with a password of <tt>s3cret</tt>, add the following to the [ERROR] config file listed above. [ERROR] </p> [ERROR] <pre> [ERROR] &lt;role rolename="manager-gui"/&gt; [ERROR] &lt;user username="tomcat" password="s3cret" roles="manager-gui"/&gt; [ERROR] </pre> [ERROR] <p> [ERROR] Note that for Tomcat 7 onwards, the roles required to use the manager [ERROR] application were changed from the single <tt>manager</tt> role to the [ERROR] following four roles. You will need to assign the role(s) required for [ERROR] the functionality you wish to access. [ERROR] </p> [ERROR] <ul> [ERROR] <li><tt>manager-gui</tt> - allows access to the HTML GUI and the status [ERROR] pages</li> [ERROR] <li><tt>manager-script</tt> - allows access to the text interface and the [ERROR] status pages</li> [ERROR] <li><tt>manager-jmx</tt> - allows access to the JMX proxy and the status [ERROR] pages</li> [ERROR] <li><tt>manager-status</tt> - allows access to the status pages only</li> [ERROR] </ul> [ERROR] <p> [ERROR] The HTML interface is protected against CSRF but the text and JMX interfaces [ERROR] are not. To maintain the CSRF protection: [ERROR] </p> [ERROR] <ul> [ERROR] <li>Users with the <tt>manager-gui</tt> role should not be granted either [ERROR] the <tt>manager-script</tt> or <tt>manager-jmx</tt> roles.</li> [ERROR] <li>If the text or jmx interfaces are accessed through a browser (e.g. for [ERROR] testing since these interfaces are intended for tools not humans) then [ERROR] the browser must be closed afterwards to terminate the session.</li> [ERROR] </ul> [ERROR] <p> [ERROR] For more information - please see the [ERROR] <a href="/docs/manager-howto.html">Manager App HOW-TO</a>. [ERROR] </p> [ERROR] </body> [ERROR] [ERROR] </html> [ERROR] -> [Help 1] [ERROR] [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch. [ERROR] Re-run Maven using the -X switch to enable full debug logging. [ERROR] [ERROR] For more information about the errors and possible solutions, please read the following articles: [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException

卡在54%不动了，请问怎么解决啊 

[INFO] --- maven-resources-plugin:2.7:resources (default-resources) @ taotao-manage-web --- [INFO] Using 'UTF-8' encoding to copy filtered resources. [INFO] Copying 9 resources [INFO] [INFO] --- maven-compiler-plugin:3.2:compile (default-compile) @ taotao-manage-web --- [INFO] Nothing to compile - all classes are up to date [INFO] [INFO] <<< tomcat7-maven-plugin:2.2:run (default-cli) < process-classes @ taotao-manage-web <<< [WARNING] The artifact org.apache.commons:commons-io:jar:1.3.2 has been relocated to commons-io:commons-io:jar:1.3.2 [INFO] [INFO] --- tomcat7-maven-plugin:2.2:run (default-cli) @ taotao-manage-web --- [INFO] Running war on http://localhost:8081/ [INFO] Using existing Tomcat server configuration at D:\work\taotao-manage\taotao-manage-web\target\tomcat [ERROR] error creating fake context.xml : 系统找不到指定的路径。 java.io.IOException: 系统找不到指定的路径。 at java.io.WinNTFileSystem.createFileExclusively(Native Method) at java.io.File.createTempFile(File.java:2024) at java.io.File.createTempFile(File.java:2070) at org.apache.tomcat.maven.plugin.tomcat7.run.RunMojo.getContextFile(RunMojo.java:190) at org.apache.tomcat.maven.plugin.tomcat7.run.AbstractRunMojo.createContext(AbstractRunMojo.java:653) at org.apache.tomcat.maven.plugin.tomcat7.run.AbstractRunMojo.startContainer(AbstractRunMojo.java:1091) at org.apache.tomcat.maven.plugin.tomcat7.run.AbstractRunMojo.execute(AbstractRunMojo.java:592) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:132) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80) at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51) at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:120) at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:355) at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:155) at org.apache.maven.cli.MavenCli.execute(MavenCli.java:584) at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:216) at org.apache.maven.cli.MavenCli.main(MavenCli.java:160) 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:483) at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289) at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415) at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356) [INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 4.942 s [INFO] Finished at: 2017-06-09T09:35:17+08:00 [INFO] Final Memory: 15M/136M [INFO] ------------------------------------------------------------------------ [ERROR] Failed to execute goal org.apache.tomcat.maven:tomcat7-maven-plugin:2.2:run (default-cli) on project taotao-manage-web: error creating fake context.xml : 系统找不到指定的路径。 -> [Help 1] [ERROR] [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch. [ERROR] Re-run Maven using the -X switch to enable full debug logging. [ERROR] [ERROR] For more information about the errors and possible solutions, please read the following articles: [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException

"C:\Program Files\Java\jdk1.8.0_201\bin\java" "-Dmaven.multiModuleProjectDirectory=C:\Users\Administrator\Desktop\travel - 副本" -Dfile.encoding=gb2312 "-Dmaven.home=C:\Program Files\JetBrains\IntelliJ IDEA 2017.2.6\plugins\maven\lib\maven3" "-Dclassworlds.conf=C:\Program Files\JetBrains\IntelliJ IDEA 2017.2.6\plugins\maven\lib\maven3\bin\m2.conf" "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA 2017.2.6\lib\idea_rt.jar=51249:C:\Program Files\JetBrains\IntelliJ IDEA 2017.2.6\bin" -classpath "C:\Program Files\JetBrains\IntelliJ IDEA 2017.2.6\plugins\maven\lib\maven3\boot\plexus-classworlds-2.5.2.jar" org.codehaus.classworlds.Launcher -Didea.version=2017.2.6 tomcat7:run [INFO] Scanning for projects... [WARNING] [WARNING] Some problems were encountered while building the effective model for cn.itcast:travel:war:1.0-SNAPSHOT [WARNING] 'build.plugins.plugin.version' for org.apache.maven.plugins:maven-compiler-plugin is missing. @ line 131, column 21 [WARNING] [WARNING] It is highly recommended to fix these problems because they threaten the stability of your build. [WARNING] [WARNING] For this reason, future Maven versions might no longer support building such malformed projects. [WARNING] [INFO] [INFO] ------------------------------------------------------------------------ [INFO] Building travel 1.0-SNAPSHOT [INFO] ------------------------------------------------------------------------ [INFO] [INFO] >>> tomcat7-maven-plugin:2.1:run (default-cli) > process-classes @ travel >>> [INFO] [INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ travel --- [WARNING] Using platform encoding (gb2312 actually) to copy filtered resources, i.e. build is platform dependent! [INFO] Copying 3 resources [INFO] [INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ travel --- [INFO] Changes detected - recompiling the module! [INFO] Compiling 40 source files to C:\Users\Administrator\Desktop\travel - 副本\target\classes [WARNING] /C:/Users/Administrator/Desktop/travel - 副本/src/main/java/cn/itcast/travel/dao/impl/FindDaoImpl.java: 某些输入文件使用了未经检查或不安全的操作。 [WARNING] /C:/Users/Administrator/Desktop/travel - 副本/src/main/java/cn/itcast/travel/dao/impl/FindDaoImpl.java: 有关详细信息, 请使用 -Xlint:unchecked 重新编译。 [INFO] [INFO] <<< tomcat7-maven-plugin:2.1:run (default-cli) < process-classes @ travel <<< [INFO] [INFO] --- tomcat7-maven-plugin:2.1:run (default-cli) @ travel --- [INFO] Running war on http://localhost:80/travel [INFO] Using existing Tomcat server configuration at C:\Users\Administrator\Desktop\travel - 副本\target\tomcat [INFO] create webapp with contextPath: /travel 七月 21, 2019 5:00:20 下午 org.apache.coyote.AbstractProtocol init 信息: Initializing ProtocolHandler ["http-bio-80"] 七月 21, 2019 5:00:20 下午 org.apache.catalina.core.StandardService startInternal 信息: Starting service Tomcat 七月 21, 2019 5:00:20 下午 org.apache.catalina.core.StandardEngine startInternal 信息: Starting Servlet Engine: Apache Tomcat/7.0.37 七月 21, 2019 5:00:21 下午 org.apache.catalina.core.ContainerBase startInternal 严重: A child container failed during start java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost].StandardContext[/travel]] at java.util.concurrent.FutureTask.report(FutureTask.java:122) at java.util.concurrent.FutureTask.get(FutureTask.java:192) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1123) at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:800) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost].StandardContext[/travel]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154) ... 6 more Caused by: java.lang.IllegalArgumentException: Invalid <url-pattern> #write/* in servlet mapping at org.apache.catalina.core.StandardContext.addServletMapping(StandardContext.java:3223) at org.apache.catalina.core.StandardContext.addServletMapping(StandardContext.java:3198) at org.apache.catalina.deploy.WebXml.configureContext(WebXml.java:1366) at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1353) at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:878) at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:369) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119) at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5179) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ... 6 more 七月 21, 2019 5:00:21 下午 org.apache.catalina.core.ContainerBase startInternal 严重: A child container failed during start java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost]] at java.util.concurrent.FutureTask.report(FutureTask.java:122) at java.util.concurrent.FutureTask.get(FutureTask.java:192) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1123) at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:302) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.StandardService.startInternal(StandardService.java:443) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:732) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.startup.Tomcat.start(Tomcat.java:335) at org.apache.tomcat.maven.plugin.tomcat7.run.AbstractRunMojo.startContainer(AbstractRunMojo.java:1091) at org.apache.tomcat.maven.plugin.tomcat7.run.AbstractRunMojo.execute(AbstractRunMojo.java:512) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:207) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80) at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51) at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128) at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307) at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193) at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106) at org.apache.maven.cli.MavenCli.execute(MavenCli.java:863) at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:288) at org.apache.maven.cli.MavenCli.main(MavenCli.java:199) 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.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289) at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415) at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356) at org.codehaus.classworlds.Launcher.main(Launcher.java:47) Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) Caused by: org.apache.catalina.LifecycleException: A child container failed during start at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1131) at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:800) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ... 6 more [INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 3.989 s [INFO] Finished at: 2019-07-21T17:00:21+08:00 [INFO] Final Memory: 32M/279M [INFO] ------------------------------------------------------------------------ [ERROR] Failed to execute goal org.apache.tomcat.maven:tomcat7-maven-plugin:2.1:run (default-cli) on project travel: Could not start Tomcat: Failed to start component [StandardServer[-1]]: Failed to start component [StandardService[Tomcat]]: Failed to start component [StandardEngine[Tomcat]]: A child container failed during start -> [Help 1] [ERROR] [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch. [ERROR] Re-run Maven using the -X switch to enable full debug logging. [ERROR] [ERROR] For more information about the errors and possible solutions, please read the following articles: [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException Process finished with exit code 1

[INFO] Scanning for projects... [INFO] [INFO] ------------------------------------------------------------------------ [INFO] Building testMaven 0.0.1-SNAPSHOT [INFO] ------------------------------------------------------------------------ [INFO] [INFO] >>> tomcat7-maven-plugin:2.2:run (default-cli) > process-classes @ testMaven >>> [INFO] [INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ testMaven --- [INFO] Using 'UTF-8' encoding to copy filtered resources. [INFO] skip non existing resourceDirectory D:\Java\workspace\testMaven\src\main\resources [INFO] [INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ testMaven --- [INFO] Nothing to compile - all classes are up to date [INFO] [INFO] <<< tomcat7-maven-plugin:2.2:run (default-cli) < process-classes @ testMaven <<< [INFO] [INFO] --- tomcat7-maven-plugin:2.2:run (default-cli) @ testMaven --- [INFO] Running war on http://localhost:8080/testMaven [INFO] Using existing Tomcat server configuration at D:\Java\workspace\testMaven\target\tomcat [INFO] create webapp with contextPath: /testMaven 十二月 03, 2016 10:08:06 下午 org.apache.coyote.AbstractProtocol init 信息: Initializing ProtocolHandler ["http-bio-8080"] 十二月 03, 2016 10:08:06 下午 org.apache.catalina.core.StandardService startInternal 信息: Starting service Tomcat 十二月 03, 2016 10:08:06 下午 org.apache.catalina.core.StandardEngine startInternal 信息: Starting Servlet Engine: Apache Tomcat/7.0.47 十二月 03, 2016 10:08:16 下午 org.apache.catalina.core.ContainerBase startInternal 严重: A child container failed during start java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost].StandardContext[/testMaven]] at java.util.concurrent.FutureTask.report(FutureTask.java:122) at java.util.concurrent.FutureTask.get(FutureTask.java:192) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1123) at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:800) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost].StandardContext[/testMaven]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154) ... 6 more Caused by: java.lang.LinkageError: loader constraint violation: loader (instance of org/apache/catalina/loader/WebappClassLoader) previously initiated loading for a different type with name "javax/servlet/ServletContext" at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:763) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:467) at java.net.URLClassLoader.access$100(URLClassLoader.java:73) at java.net.URLClassLoader$1.run(URLClassLoader.java:368) at java.net.URLClassLoader$1.run(URLClassLoader.java:362) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:361) at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:1191) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1669) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1547) at org.springframework.web.SpringServletContainerInitializer.onStartup(SpringServletContainerInitializer.java:162) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5423) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ... 6 more 十二月 03, 2016 10:08:16 下午 org.apache.catalina.core.ContainerBase startInternal 严重: A child container failed during start java.util.concurrent.ExecutionException: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost]] at java.util.concurrent.FutureTask.report(FutureTask.java:122) at java.util.concurrent.FutureTask.get(FutureTask.java:192) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1123) at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:302) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.StandardService.startInternal(StandardService.java:443) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:732) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) at org.apache.catalina.startup.Tomcat.start(Tomcat.java:341) at org.apache.tomcat.maven.plugin.tomcat7.run.AbstractRunMojo.startContainer(AbstractRunMojo.java:1238) at org.apache.tomcat.maven.plugin.tomcat7.run.AbstractRunMojo.execute(AbstractRunMojo.java:592) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:134) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:208) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:116) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:80) at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build(SingleThreadedBuilder.java:51) at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:128) at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:307) at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:193) at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:106) at org.apache.maven.cli.MavenCli.execute(MavenCli.java:862) at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:286) at org.apache.maven.cli.MavenCli.main(MavenCli.java:197) 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.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:289) at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:229) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415) at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356) Caused by: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Tomcat].StandardHost[localhost]] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:154) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) Caused by: org.apache.catalina.LifecycleException: A child container failed during start at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1131) at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:800) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150) ... 6 more [INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 25.121 s [INFO] Finished at: 2016-12-03T22:08:16+08:00 [INFO] Final Memory: 28M/269M [INFO] ------------------------------------------------------------------------ [ERROR] Failed to execute goal org.apache.tomcat.maven:tomcat7-maven-plugin:2.2:run (default-cli) on project testMaven: Could not start Tomcat: Failed to start component [StandardServer[-1]]: Failed to start component [StandardService[Tomcat]]: Failed to start component [StandardEngine[Tomcat]]: A child container failed during start -> [Help 1] [ERROR] [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch. [ERROR] Re-run Maven using the -X switch to enable full debug logging. [ERROR] [ERROR] For more information about the errors and possible solutions, please read the following articles: [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException

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有小伙伴问松哥这个问题，他在上海某公司，在离职了几个月后，前公司的领导联系到他，希望他能够返聘回去，他很纠结要不要回去？ 俗话说好马不吃回头草，但是这个小伙伴既然感到纠结了，我觉得至少说明了两个问题：1.曾经的公司还不错；2.现在的日子也不是很如意。否则应该就不会纠结了。 老实说，松哥之前也有过类似的经历，今天就来和小伙伴们聊聊回头草到底吃不吃。 首先一个基本观点，就是离职了也没必要和老东家弄的苦...

不知道是不是只有我这样子，还是你们也有过类似的经历。 上学的时候总有很多光辉历史，学年名列前茅，或者单科目大佬，但是虽然慢慢地长大了，你开始懈怠了，开始废掉了。。。 什么？你说不知道具体的情况是怎么样的？ 我来告诉你： 你常常潜意识里或者心理觉得，自己真正的生活或者奋斗还没有开始。总是幻想着自己还拥有大把时间，还有无限的可能，自己还能逆风翻盘，只不是自己还没开始罢了，自己以后肯定会变得特别厉害...

都是出来打工的，多为自己着想

二哥，有个事想询问下您的意见，您觉得应届生值得去外包吗？公司虽然挺大的，中xx，但待遇感觉挺低，马上要报到，挺纠结的。

当HR压你价，说你只值7K时，你可以流畅地回答，记住，是流畅，不能犹豫。 礼貌地说：“7K是吗？了解了。嗯~其实我对贵司的面试官印象很好。只不过，现在我的手头上已经有一份11K的offer。来面试，主要也是自己对贵司挺有兴趣的，所以过来看看……”（未完） 这段话主要是陪HR互诈的同时，从公司兴趣，公司职员印象上，都给予对方正面的肯定，既能提升HR的好感度，又能让谈判气氛融洽，为后面的发挥留足空间。...

面试阿里p7被问到的问题(当时我只知道第一个)：@Conditional是做什么的?@Conditional多个条件是什么逻辑关系？条件判断在什么时候执...

先来看几个问题通过注解的方式注入依赖对象，介绍一下你知道的几种方式@Autowired和@Resource有何区别说一下@Autowired查找候选者的...

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。

说实话，自己的算法，我一个不会，太难了吧

已经连续五年参加大厂校招、社招的技术面试工作，简历看的不下于万份 这篇文章会用实例告诉你，什么是差的程序员简历！ 疫情快要结束了，各个公司也都开始春招了，作为即将红遍大江南北的新晋UP主，那当然要为小伙伴们做点事（手动狗头）。 就在公众号里公开征简历，义务帮大家看，并一一点评。《启舰：春招在即，义务帮大家看看简历吧》 一石激起千层浪，三天收到两百多封简历。 花光了两个星期的所有空闲时...

我们都玩过Windows操作系统中的经典游戏扫雷（Minesweeper），如果把质数当作一颗雷，那么，表格中红色的数字哪些是雷（质数）？您能找出多少个呢？文中用列表的方式罗列了10000以内的自然数、质数（素数），6的倍数等，方便大家观察质数的分布规律及特性，以便对算法求解有指导意义。另外，判断质数是初学算法，理解算法重要性的一个非常好的案例。

操作系统（Operating System，OS）：是管理计算机硬件与软件资源的系统软件，同时也是计算机系统的内核与基石。操作系统需要处理管理与配置内存、决定系统资源供需的优先次序、控制输入与输出设备、操作网络与管理文件系统等基本事务。操作系统也提供一个让用户与系统交互的操作界面。 shell：它是一个程序，可从键盘获取命令并将其提供给操作系统以执行。 在过去，它是类似 Unix 的系统上...

正确选择比瞎努力更重要！

导读 前天面试了一个985高校的实习生，问了他平时用什么开发工具，他想也没想的说IDEA，于是我抛砖引玉的问了一下IDEA的调试用过吧，你说说怎么设置断点...