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ZHENFENG13 / ssm-demo

:banana:Spring+SpringMVC+Mybatis+easyUI实现简单的后台管理系统
http://ssm-cluster.13blog.site
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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 6 years ago

chaleaoch commented 6 years ago

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 commented 6 years ago

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 commented 6 years ago

@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 commented 6 years ago

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 commented 6 years ago

ok，记得做个笔记，省得以后不知所措。

chaleaoch commented 6 years ago

@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 commented 6 years ago

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 commented 6 years ago

用mvn tomcat:run-war命令，注意是run-war。

huowolf commented 6 years ago

注意项目的打包方式：packaging>war</packaging>

chaleaoch commented 6 years ago

@ZHENFENG13 @huowolf

谢谢二位的指点.