求教这个Tomcat启动时报错如何解决？

Question

2011-4-7 0:36:23 org.apache.catalina.core.AprLifecycleListener init
信息: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jdk1.6.0_16\bin;D:\apache-tomcat-6.0.16\bin
2011-4-7 0:36:23 org.apache.coyote.http11.Http11Protocol init
信息: Initializing Coyote HTTP/1.1 on http-8080
2011-4-7 0:36:23 org.apache.catalina.startup.Catalina load
信息: Initialization processed in 586 ms
2011-4-7 0:36:23 org.apache.catalina.core.StandardService start
信息: Starting service Catalina
2011-4-7 0:36:23 org.apache.catalina.core.StandardEngine start
信息: Starting Servlet Engine: Apache Tomcat/6.0.16
2011-4-7 0:36:24 org.apache.catalina.core.StandardContext addApplicationListener
信息: The listener "listeners.ContextListener" is already configured for this context. The duplicate definition has been ignored.
2011-4-7 0:36:24 org.apache.catalina.core.StandardContext addApplicationListener
信息: The listener "listeners.SessionListener" is already configured for this context. The duplicate definition has been ignored.
2011-4-7 0:36:24 org.apache.catalina.core.ApplicationContext log
信息: ContextListener: contextInitialized()
2011-4-7 0:36:24 org.apache.catalina.core.ApplicationContext log
信息: SessionListener: contextInitialized()
servlet3 init()
servlet2 init()
2011-4-7 0:36:25 org.apache.coyote.http11.Http11Protocol start
信息: Starting Coyote HTTP/1.1 on http-8080
2011-4-7 0:36:25 org.apache.jk.common.ChannelSocket init
信息: JK: ajp13 listening on /0.0.0.0:8009
2011-4-7 0:36:25 org.apache.jk.server.JkMain start
信息: Jk running ID=0 time=0/47  config=null
2011-4-7 0:36:25 org.apache.catalina.startup.Catalina start
信息: Server startup in 1739 ms
2011-4-7 0:36:57 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet Servlet10 threw exception
java.lang.NullPointerException
at java.util.Properties$LineReader.readLine(Properties.java:418)
at java.util.Properties.load0(Properties.java:337)
at java.util.Properties.load(Properties.java:325)
at cn.itcast.servlet.Servlet10.doGet(Servlet10.java:30)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:619)
2011-4-7 0:38:35 org.apache.catalina.startup.HostConfig checkResources
信息: Reloading context [/day05]
servlet3 init()
servlet2 init()

Answer 1

JDK的路径没找到吧，你在看看JDK地址。

Answer 2

at cn.itcast.servlet.Servlet10.doGet(Servlet10.java:30)
怀疑是Servlet10里面的properties读取出现了问题

Answer 3

tomcat中，jdk的路径看看有没有配置好。

Answer 4

楼主查下这行代码吧
cn.itcast.servlet.Servlet10.doGet(Servlet10.java:30)
异常给的很明确了

Answer 5

2个办法，1，换个jdk，2 换个tomcat，tomcat找个压缩版。

Answer 6

+1 重装下JDK，看看tomcat的JDK配置好没

Answer 7

信息: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jdk1.6.0_16\bin;D:\apache-tomcat-6.0.16\bin这是tomcat 的jdk 没配置好

Answer 8

at cn.itcast.servlet.Servlet10.doGet(Servlet10.java:30)你的servlet10的doGet方法中出现了空异常，跟踪下就知道了

Answer 9

java.lang.NullPointerException
at java.util.Properties$LineReader.readLine(Properties.java:418)配置文件可能有错

Answer 10

cn.itcast.servlet.Servlet10.doGet(Servlet10.java:30)
楼主你自己的代码看下吧

Answer 11

缺少jar包，根本就不是什么jdk没配好，jdk没配好tomcat根本不能启动

Answer 12

cn.itcast.servlet.Servlet10.doGet(Servlet10.java:30)这行代码引用了一个不存在的jar包