[英]Vaadin7 Project wirh Maven + Tomcat7 compile error
嗨，我正在與Vaadin7 Project合作。
我在編譯項目時遇到了困難。
由於無法運行簡單的HelloWorld項目，我感到非常沮喪：-(
我在OSX上使用Eclipse Kepler。
我已經完成並嘗試的操作如下。
<dependency>vaadin-charts添加到pom.xml。 我在這里遵循指南。 鏈接： https : //vaadin.com/book/vaadin7/-/page/addons.maven.html Maven clean運行Project As Maven clean 404 error 沒有web.xml ，我真的不知道在哪里解決此問題。
我認為在Chrome中觀看“點擊”按鈕已經很近了，但是找不到。
我的錯誤日志如下
SEVERE: ClassNotFoundException while loading persisted sessions: java.lang.ClassNotFoundException: org.owls.test.VaadinMay.MyVaadinUI
java.lang.ClassNotFoundException: org.owls.test.VaadinMay.MyVaadinUI
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1702)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1547)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:270)
at org.apache.catalina.util.CustomObjectInputStream.resolveClass(CustomObjectInputStream.java:76)
at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1612)
at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1517)
at java.io.ObjectInputStream.readClass(ObjectInputStream.java:1483)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1333)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370)
at java.util.HashMap.readObject(HashMap.java:1183)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1893)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1990)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1915)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1990)
at java.io.ObjectInputStream.defaultReadObject(ObjectInputStream.java:500)
at com.vaadin.server.VaadinSession.readObject(VaadinSession.java:1436)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1893)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370)
at org.apache.catalina.session.StandardSession.readObject(StandardSession.java:1597)
at org.apache.catalina.session.StandardSession.readObjectData(StandardSession.java:1062)
at org.apache.catalina.session.StandardManager.doLoad(StandardManager.java:284)
at org.apache.catalina.session.StandardManager.load(StandardManager.java:204)
at org.apache.catalina.session.StandardManager.startInternal(StandardManager.java:491)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5443)
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:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
Jun 01, 2014 10:39:41 PM org.apache.catalina.session.StandardManager startInternal
SEVERE: Exception loading sessions from persistent storage
java.lang.ClassNotFoundException: org.owls.test.VaadinMay.MyVaadinUI
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1702)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1547)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:270)
at org.apache.catalina.util.CustomObjectInputStream.resolveClass(CustomObjectInputStream.java:76)
at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1612)
at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1517)
at java.io.ObjectInputStream.readClass(ObjectInputStream.java:1483)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1333)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370)
at java.util.HashMap.readObject(HashMap.java:1183)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1893)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1990)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1915)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1990)
at java.io.ObjectInputStream.defaultReadObject(ObjectInputStream.java:500)
at com.vaadin.server.VaadinSession.readObject(VaadinSession.java:1436)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:1017)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1893)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1798)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1350)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:370)
at org.apache.catalina.session.StandardSession.readObject(StandardSession.java:1597)
at org.apache.catalina.session.StandardSession.readObjectData(StandardSession.java:1062)
at org.apache.catalina.session.StandardManager.doLoad(StandardManager.java:284)
at org.apache.catalina.session.StandardManager.load(StandardManager.java:204)
at org.apache.catalina.session.StandardManager.startInternal(StandardManager.java:491)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5443)
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$StartChild.call(ContainerBase.java:1549)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
感謝您分享我的問題：D
============編輯於06/02/2014 ======================
我的行家清潔看起來還不錯。 我附上日志
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building Vaadin Web Application 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-clean-plugin:2.4.1:clean (default-clean) @ VaadinMvn ---
[INFO] Deleting /Users/juneyoungoh/Documents/vaadinwork/VaadinMvn/target
[INFO]
[INFO] --- vaadin-maven-plugin:7.1.8:clean (default) @ VaadinMvn ---
[INFO] auto discovered modules [org.owls.test.VaadinMvn.AppWidgetSet]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.496s
[INFO] Finished at: Mon Jun 02 21:32:12 KST 2014
[INFO] Final Memory: 6M/81M
[INFO] ------------------------------------------------------------------------
=========編輯＃02 ========================
上一個是Maven clean，我在Maven build中發現一個錯誤。
我認為這可能是一個線索。
[INFO] --- vaadin-maven-plugin:7.1.8:update-theme (default) @ VaadinMvn ---
[INFO] Updating theme VAADIN/themes/mytheme
[ERROR] Jun 02, 2014 10:22:16 PM com.vaadin.server.widgetsetutils.ClassPathExplorer getAvailableWidgetSetsAndStylesheets
[ERROR] INFO: Widgetsets found from classpath:
[ERROR] com.vaadin.DefaultWidgetSet in jar:file:/Users/juneyoungoh/.m2/repository/com/vaadin/vaadin-client/7.1.8/vaadin-client-7.1.8.jar!/
[ERROR] com.vaadin.addon.charts.Widgetset in jar:file:/Users/juneyoungoh/.m2/repository/com/vaadin/addon/vaadin-charts/1.0.0/vaadin-charts-1.0.0.jar!/
[ERROR] com.vaadin.addon.timeline.gwt.TimelineWidgetSet in jar:file:/Users/juneyoungoh/.m2/repository/com/vaadin/addon/vaadin-charts/1.0.0/vaadin-charts-1.0.0.jar!/
[ERROR] org.owls.test.VaadinMvn.AppWidgetSet in file:/Users/juneyoungoh/Documents/vaadinwork/VaadinMvn/src/main/java
[ERROR] Addon styles found from classpath:
[ERROR]
[ERROR] Jun 02, 2014 10:22:17 PM com.vaadin.server.widgetsetutils.ClassPathExplorer getAvailableWidgetSetsAndStylesheets
[ERROR] INFO: Search took 27ms
我在Vaadin論壇上找到了一個帖子。 但這看起來不像我的問題。 這是關於常春藤的設置。 但是鏈接在下面
1） SEVERE: ClassNotFoundException while loading persisted sessions:java.lang.ClassNotFoundException: org.owls.test.VaadinMay.MyVaadinUI彈出，因為Tomcat試圖對先前保存的會話進行反序列化，並且在此期間您可能已經更改了一些類名。 可以通過編輯CATALINA_HOME/conf/context.xml文件來全局禁用此功能。 您應該找到一行“取消對此注釋以禁用會話...”的更多信息， 在這里
2） HTTP 404與以上幾點無關，並且很可能是由於您的servlet配置所致。 由於您沒有web.xml ，因此應從用戶界面內部進行所有設置。 打開MyVaadinUi或您將其重命名的任何內容，然后按照vaadin文檔中的說明查看URL路徑映射的配置（向下滾動至第4.8.5章“使用URL模式的Servlet映射”）。 確保按照此配置訪問localhost上的應用程序，並且應該沒問題。
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