java - Invalid <url-pattern> null in servlet mapping in Tomcat 7 -

-

i know followed specification servlet-mapping , created servlet using netbeans 7.0.

here web.xml

<servlet>   <servlet-name>selection</servlet-name>   <servlet-class>com.package.sample.selection</servlet-class> </servlet>   <servlet-mapping>   <servlet-name>selection</servlet-name>   <url-patern>/selection</url-patern> </servlet-mapping>

on catalina log files

severe: error deploying web application directory client java.lang.illegalargumentexception: invalid null in servlet mapping @ org.apache.catalina.core.standardcontext.addservletmapping(standardcontext.java:3155) @ org.apache.catalina.core.standardcontext.addservletmapping(standardcontext.java:3130) @ org.apache.catalina.deploy.webxml.configurecontext(webxml.java:1301) @ org.apache.catalina.startup.contextconfig.webconfig(contextconfig.java:1350) @ org.apache.catalina.startup.contextconfig.configurestart(contextconfig.java:881) @ org.apache.catalina.startup.contextconfig.lifecycleevent(contextconfig.java:316) @ org.apache.catalina.util.lifecyclesupport.firelifecycleevent(lifecyclesupport.java:119) @ org.apache.catalina.util.lifecyclebase.firelifecycleevent(lifecyclebase.java:89) @ org.apache.catalina.core.standardcontext.startinternal(standardcontext.java:5103) @ org.apache.catalina.util.lifecyclebase.start(lifecyclebase.java:145) @ org.apache.catalina.core.containerbase.addchildinternal(containerbase.java:812) @ org.apache.catalina.core.containerbase.addchild(containerbase.java:787) @ org.apache.catalina.core.standardhost.addchild(standardhost.java:607) @ org.apache.catalina.startup.hostconfig.deploydirectory(hostconfig.java:1055) @ org.apache.catalina.startup.hostconfig.deploydirectories(hostconfig.java:978) @ org.apache.catalina.startup.hostconfig.deployapps(hostconfig.java:472) @ org.apache.catalina.startup.hostconfig.start(hostconfig.java:1322) @ org.apache.catalina.startup.hostconfig.lifecycleevent(hostconfig.java:311) @ org.apache.catalina.util.lifecyclesupport.firelifecycleevent(lifecyclesupport.java:119) @ org.apache.catalina.util.lifecyclebase.firelifecycleevent(lifecyclebase.java:89) @ org.apache.catalina.util.lifecyclebase.setstateinternal(lifecyclebase.java:379) @ org.apache.catalina.util.lifecyclebase.setstate(lifecyclebase.java:324) @ org.apache.catalina.core.containerbase.startinternal(containerbase.java:1041) @ org.apache.catalina.core.standardhost.startinternal(standardhost.java:774) @ org.apache.catalina.util.lifecyclebase.start(lifecyclebase.java:145) @ org.apache.catalina.core.containerbase.startinternal(containerbase.java:1033) @ org.apache.catalina.core.standardengine.startinternal(standardengine.java:291) @ org.apache.catalina.util.lifecyclebase.start(lifecyclebase.java:145) @ org.apache.catalina.core.standardservice.startinternal(standardservice.java:443) @ org.apache.catalina.util.lifecyclebase.start(lifecyclebase.java:145) @ org.apache.catalina.core.standardserver.startinternal(standardserver.java:727) @ org.apache.catalina.util.lifecyclebase.start(lifecyclebase.java:145) @ org.apache.catalina.startup.catalina.start(catalina.java:620) @ sun.reflect.nativemethodaccessorimpl.invoke0(native method) @ sun.reflect.nativemethodaccessorimpl.invoke(nativemethodaccessorimpl.java:39) @ sun.reflect.delegatingmethodaccessorimpl.invoke(delegatingmethodaccessorimpl.java:25) @ java.lang.reflect.method.invoke(method.java:597) @ org.apache.catalina.startup.bootstrap.start(bootstrap.java:303) @ org.apache.catalina.startup.bootstrap.main(bootstrap.java:431) @ sun.reflect.nativemethodaccessorimpl.invoke0(native method) @ sun.reflect.nativemethodaccessorimpl.invoke(nativemethodaccessorimpl.java:39) @ sun.reflect.delegatingmethodaccessorimpl.invoke(delegatingmethodaccessorimpl.java:25) @ java.lang.reflect.method.invoke(method.java:597) @ org.tanukisoftware.wrapper.wrapperstartstopapp.run(wrapperstartstopapp.java:264) @ java.lang.thread.run(thread.java:662)

the spelling of pattern wrong in xml file.

<servlet>   <servlet-name>selection</servlet-name>   <servlet-class>com.package.sample.selection</servlet-class> </servlet>   <servlet-mapping>   <servlet-name>selection</servlet-name>   <url-pattern>/selection</url-pattern> </servlet-mapping>

Comments

Post a Comment

Popular posts from this blog

python - No exponential form of the z-axis in matplotlib-3D-plots -

-
Image
i have similar problem described in how prevent numbers being changed exponential form in python matplotlib figure : i don't want (in special case) weird scientific formatting of axis. problem different have problem @ z -axis. 2-d plots can use ax.get_yaxis().get_major_formatter().set_useoffset(false) . , there no function ax.get_zaxis() what use format z -axis same way? edit: example: from mpl_toolkits.mplot3d import axes3d import numpy np import sys import matplotlib import matplotlib.pyplot pyplot def func(xi, ti): res = 10e3 + np.cos(ti) * np.sin(xi) return res if __name__ == '__main__': timespacing = 20 timestart = 0 timeend = 1 time = np.linspace(timestart, timeend, timespacing) widthspacing = 50 widthstart = 0 widthend = 3 width = np.linspace(widthstart, widthend, widthspacing) reslist = [] matplotlib.rcparams['legend.fontsize'] = 10 fig = pyplot.figure() ax = fig.gca(projection = '3d...
Read more

php - Best Light server (Linux + Web server + Database) for Raspberry Pi -

-
i install web server database on raspberry pi (little computer). computer has 1gb ram. i want know best combination: linux distribution , web server , dbms run local server multiple users minimal latency, use php on server. , best settings performance , not have bugs (memory usage, disable plugin, disable service, etc)? i thought light debian , lighttpd server , sqlite database. solution? i think lighttpd + sqlite great choice. linux distro, debian @ centos or tiny core linux , although i'm not sure of compatibility pi. obviously, can't go wrong raspbian if want use in production , more stable performance, few more pi's , set them in cluster .
Read more

c# - "Newtonsoft.Json.JsonSerializationException unable to find constructor to use for types" error when deserializing class -

-
i developing app in xamarin android. have splash screen serialize class , pass mainactivity using intent . when try deserialize in mainactivity error message : "serializationexception unable find constructor use types" serialization : void loaddata() { currency currency = new currency(this); intent = new intent(this, typeof(mainactivity)); intent.putextra("currency", newtonsoft.json.jsonconvert.serializeobject(currency)); startactivity(intent); } deserialization : cur = newtonsoft.json.jsonconvert.deserializeobject<currency> (intent.getstringextra("currency")); // error here class constructor : public currency(context context) { thiscontext = context; } i began experiencing problem after added parameter context context constructor. has caused this? how can solve it? possible serialize/deserialize class has parameters? you need have empty constructor in currency class in order deserialize it. ...
Read more