急救啊一用structs开启就出这种错误
严重: Error waiting for multi-thread deployment of directories to completehostConfig.deployWar=Deploying web application archive {0}
java.util.concurrent.ExecutionException: java.lang.OutOfMemoryError: Java heap space
  at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:222)
  at java.util.concurrent.FutureTask.get(FutureTask.java:83)
  at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:1018)
  at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:473)
  at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1412)
  at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:312)
  at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
  at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
  at org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:401)
  at org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:346)
  at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:1145)
  at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:782)
  at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
  at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1566)
  at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1556)
  at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
  at java.util.concurrent.FutureTask.run(FutureTask.java:138)
  at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
  at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.OutOfMemoryError: Java heap space
  at java.util.Arrays.copyOfRange(Arrays.java:3209)
  at java.lang.String.<init>(String.java:216)
  at java.io.DataInputStream.readUTF(DataInputStream.java:644)
  at java.io.DataInputStream.readUTF(DataInputStream.java:547)
  at org.apache.tomcat.util.bcel.classfile.ConstantUtf8.<init>(ConstantUtf8.java:48)
  at org.apache.tomcat.util.bcel.classfile.Constant.readConstant(Constant.java:129)
  at org.apache.tomcat.util.bcel.classfile.ConstantPool.<init>(ConstantPool.java:60)
  at org.apache.tomcat.util.bcel.classfile.ClassParser.readConstantPool(ClassParser.java:209)
  at org.apache.tomcat.util.bcel.classfile.ClassParser.parse(ClassParser.java:119)
  at org.apache.catalina.startup.ContextConfig.processAnnotationsStream(ContextConfig.java:2032)
  at org.apache.catalina.startup.ContextConfig.processAnnotationsJar(ContextConfig.java:1923)
  at org.apache.catalina.startup.ContextConfig.processAnnotationsUrl(ContextConfig.java:1891)
  at org.apache.catalina.startup.ContextConfig.processAnnotations(ContextConfig.java:1877)
  at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1270)
  at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:855)
  at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:345)
  at org.apache.catalina.util.LifecycleSupport.fireLif