Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

java新手,为什么你们都能运行起来,我的运行不起来呢? #19

Open
chaleaoch opened this issue May 3, 2018 · 9 comments
Open

java新手,为什么你们都能运行起来,我的运行不起来呢? #19

chaleaoch opened this issue May 3, 2018 · 9 comments

Comments

@chaleaoch
Copy link

当然,大概率是我的问题.

这是log,提示正常启动
image

但是页面404
image

请问入口地址是?
@ZHENFENG13
Copy link
Owner

日志不全，不太好确定问题，这就是个普通的maven工程，你就按照maven项目来启动就好了

@chaleaoch
Copy link
Author

@ZHENFENG13

谢谢你的及时反馈.

完整log信息如下.
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building ssm-maven 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] >>> tomcat7-maven-plugin:2.2:run (default-cli) > process-classes @ ssm-maven >>>
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ ssm-maven ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 15 resources
[INFO]
[INFO] --- maven-compiler-plugin:3.2:compile (default-compile) @ ssm-maven ---
[INFO] Nothing to compile - all classes are up to date
[INFO]
[INFO] <<< tomcat7-maven-plugin:2.2:run (default-cli) < process-classes @ ssm-maven <<<
[INFO]
[INFO] --- tomcat7-maven-plugin:2.2:run (default-cli) @ ssm-maven ---
[INFO] Running war on http://localhost:8888/ssm-maven
[INFO] Using existing Tomcat server configuration at C:\learning\java_proj\ssm-demo\ssm-maven\target\tomcat
[INFO] create webapp with contextPath: /ssm-maven
May 04, 2018 8:41:29 AM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-bio-8888"]
May 04, 2018 8:41:29 AM org.apache.catalina.core.StandardService startInternal
INFO: Starting service Tomcat
May 04, 2018 8:41:29 AM org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/7.0.47
May 04, 2018 8:41:32 AM org.apache.catalina.core.ApplicationContext log
INFO: No Spring WebApplicationInitializer types detected on classpath
May 04, 2018 8:41:32 AM org.apache.catalina.core.ApplicationContext log
INFO: Initializing Spring root WebApplicationContext
May 04, 2018 8:41:35 AM org.apache.catalina.core.ApplicationContext log
INFO: Initializing Spring FrameworkServlet 'springMVC'
May 04, 2018 8:41:36 AM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-bio-8888"]
May 04, 2018 8:41:36 AM org.apache.catalina.core.ApplicationDispatcher invoke
SEVERE: Servlet.service() for servlet jsp threw exception
java.lang.NullPointerException
at org.apache.jsp.main_jsp._jspInit(main_jsp.java:31)
at org.apache.jasper.runtime.HttpJspBase.init(HttpJspBase.java:49)
at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:180)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:369)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:749)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:489)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:412)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:339)
at org.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:467)
at org.apache.catalina.core.StandardHostValve.status(StandardHostValve.java:338)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:203)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
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)

May 04, 2018 8:41:36 AM org.apache.catalina.core.StandardHostValve custom
SEVERE: Exception Processing ErrorPage[errorCode=404, location=/main.jsp]
org.apache.jasper.JasperException: java.lang.NullPointerException
at org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:585)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:396)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:749)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:489)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:412)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:339)
at org.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:467)
at org.apache.catalina.core.StandardHostValve.status(StandardHostValve.java:338)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:203)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
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: java.lang.NullPointerException
at org.apache.jsp.main_jsp._jspInit(main_jsp.java:31)
at org.apache.jasper.runtime.HttpJspBase.init(HttpJspBase.java:49)
at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:180)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:369)
... 22 more

IDEA自动安装依赖,双击 tomcat7:run

image

浏览器 输入http://localhost:8888/ssm-maven/ 回车
image

java1.8 apache-tomcat-8.5.30 IDEA2018.1

如果需要提供其他信息,请告诉我.

谢谢你的帮助.

@chaleaoch
Copy link
Author

你好,我刚刚搭建成功了,

首先mvn compile 然后使用IDEA 手动创建tomcat实例.而不是使用mvn的tomcat插件.

@ZHENFENG13
Copy link
Owner

ok，记得做个笔记，省得以后不知所措。

@chaleaoch
Copy link
Author

@ZHENFENG13
经过最近几天对maven,java web的理解,有一个问题想想你请教,

上面我说能够跑起来,实际上只有通过maven 打包 -- IDEA运行 -- 这样是可以成功的.

但是当我使用maven的tomcat插件,提示404,百思不得其解.

log

C:\Java\jdk1.8.0_162\bin\java -Dmaven.multiModuleProjectDirectory=C:\learning\java_proj\ssm-demo\ssm-maven "-Dmaven.home=C:\Program Files\JetBrains\IntelliJ IDEA 2018.1\plugins\maven\lib\maven3" "-Dclassworlds.conf=C:\Program Files\JetBrains\IntelliJ IDEA 2018.1\plugins\maven\lib\maven3\bin\m2.conf" "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA 2018.1\lib\idea_rt.jar=51100:C:\Program Files\JetBrains\IntelliJ IDEA 2018.1\bin" -Dfile.encoding=UTF-8 -classpath "C:\Program Files\JetBrains\IntelliJ IDEA 2018.1\plugins\maven\lib\maven3\boot\plexus-classworlds-2.5.2.jar" org.codehaus.classworlds.Launcher -Didea.version=2018.1 -DskipTests=true org.apache.tomcat.maven:tomcat7-maven-plugin:2.2:run -f pom.xml
[INFO] Scanning for projects...
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building ssm-maven 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] >>> tomcat7-maven-plugin:2.2:run (default-cli) > process-classes @ ssm-maven >>>
[INFO] 
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ ssm-maven ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 15 resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.2:compile (default-compile) @ ssm-maven ---
[INFO] Nothing to compile - all classes are up to date
[INFO] 
[INFO] <<< tomcat7-maven-plugin:2.2:run (default-cli) < process-classes @ ssm-maven <<<
[INFO] 
[INFO] --- tomcat7-maven-plugin:2.2:run (default-cli) @ ssm-maven ---
[INFO] Running war on http://localhost:8080/ssm-maven
[INFO] Using existing Tomcat server configuration at C:\learning\java_proj\ssm-demo\ssm-maven\target\tomcat
[INFO] create webapp with contextPath: /ssm-maven
May 09, 2018 3:24:13 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-bio-8080"]
May 09, 2018 3:24:13 PM org.apache.catalina.core.StandardService startInternal
INFO: Starting service Tomcat
May 09, 2018 3:24:13 PM org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/7.0.47
May 09, 2018 3:24:15 PM org.apache.catalina.core.ApplicationContext log
INFO: No Spring WebApplicationInitializer types detected on classpath
May 09, 2018 3:24:15 PM org.apache.catalina.core.ApplicationContext log
INFO: Initializing Spring root WebApplicationContext
May 09, 2018 3:24:17 PM org.apache.catalina.core.ApplicationContext log
INFO: Initializing Spring FrameworkServlet 'springMVC'
May 09, 2018 3:24:18 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-bio-8080"]

image

@chaleaoch
Copy link
Author

image

[INFO] Scanning for projects...
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building ssm-maven 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] >>> tomcat7-maven-plugin:2.2:run (default-cli) > process-classes @ ssm-maven >>>
[INFO] 
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ ssm-maven ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 15 resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.2:compile (default-compile) @ ssm-maven ---
[INFO] Nothing to compile - all classes are up to date
[INFO] 
[INFO] <<< tomcat7-maven-plugin:2.2:run (default-cli) < process-classes @ ssm-maven <<<
[INFO] 
[INFO] --- tomcat7-maven-plugin:2.2:run (default-cli) @ ssm-maven ---
[INFO] Running war on http://localhost:8080/ssm-maven
[INFO] Using existing Tomcat server configuration at C:\learning\java_proj\ssm-demo\ssm-maven\target\tomcat
[INFO] create webapp with contextPath: /ssm-maven
May 09, 2018 3:24:13 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-bio-8080"]
May 09, 2018 3:24:13 PM org.apache.catalina.core.StandardService startInternal
INFO: Starting service Tomcat
May 09, 2018 3:24:13 PM org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/7.0.47
May 09, 2018 3:24:15 PM org.apache.catalina.core.ApplicationContext log
INFO: No Spring WebApplicationInitializer types detected on classpath
May 09, 2018 3:24:15 PM org.apache.catalina.core.ApplicationContext log
INFO: Initializing Spring root WebApplicationContext
May 09, 2018 3:24:17 PM org.apache.catalina.core.ApplicationContext log
INFO: Initializing Spring FrameworkServlet 'springMVC'
May 09, 2018 3:24:18 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-bio-8080"]
May 09, 2018 3:27:51 PM org.apache.catalina.core.ApplicationDispatcher invoke
SEVERE: Servlet.service() for servlet jsp threw exception
java.lang.NullPointerException
	at org.apache.jsp.main_jsp._jspInit(main_jsp.java:31)
	at org.apache.jasper.runtime.HttpJspBase.init(HttpJspBase.java:49)
	at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:180)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:369)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:749)
	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:489)
	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:412)
	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:339)
	at org.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:467)
	at org.apache.catalina.core.StandardHostValve.status(StandardHostValve.java:338)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:203)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
	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)

May 09, 2018 3:27:51 PM org.apache.catalina.core.StandardHostValve custom
SEVERE: Exception Processing ErrorPage[errorCode=404, location=/main.jsp]
org.apache.jasper.JasperException: java.lang.NullPointerException
	at org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:585)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:396)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:749)
	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:489)
	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:412)
	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:339)
	at org.apache.catalina.core.StandardHostValve.custom(StandardHostValve.java:467)
	at org.apache.catalina.core.StandardHostValve.status(StandardHostValve.java:338)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:203)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
	at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
	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: java.lang.NullPointerException
	at org.apache.jsp.main_jsp._jspInit(main_jsp.java:31)
	at org.apache.jasper.runtime.HttpJspBase.init(HttpJspBase.java:49)
	at org.apache.jasper.servlet.JspServletWrapper.getServlet(JspServletWrapper.java:180)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:369)
	... 22 more

@ZHENFENG13
Copy link
Owner

ZHENFENG13 commented Jun 4, 2018 •
edited
Loading

用mvn tomcat:run-war命令，注意是run-war。

@huowolf
Copy link

huowolf commented Jun 12, 2018

注意项目的打包方式：packaging>war</packaging>

@chaleaoch
Copy link
Author

@ZHENFENG13 @huowolf

谢谢二位的指点.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees
No one assigned
Labels
None yet
Projects
None yet
Milestone
No milestone
Development

No branches or pull requests
3 participants
@ZHENFENG13 @chaleaoch @huowolf