标签：myeclipse creat manager number cep lan soc with instance
q好久没有使用MyEclipse10了，今天打开看了以前大学的项目，在Tomcat7中发布启动，我嚓嘞，报错：
SEVERE: Exception initializing random number generator using algorithm [SHA1PRNG] java.security.NoSuchAlgorithmException: SHA1PRNG SecureRandom not available at sun.security.jca.GetInstance.getInstance(Unknown Source) at java.security.SecureRandom.getInstance(Unknown Source) at org.apache.catalina.util.SessionIdGeneratorBase.createSecureRandom(SessionIdGeneratorBase.java:210) at org.apache.catalina.util.SessionIdGeneratorBase.getRandomBytes(SessionIdGeneratorBase.java:174) at org.apache.catalina.util.StandardSessionIdGenerator.generateSessionId(StandardSessionIdGenerator.java:34) at org.apache.catalina.util.SessionIdGeneratorBase.generateSessionId(SessionIdGeneratorBase.java:167) at org.apache.catalina.util.SessionIdGeneratorBase.startInternal(SessionIdGeneratorBase.java:256) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) at org.apache.catalina.session.ManagerBase.startInternal(ManagerBase.java:714) at org.apache.catalina.session.StandardManager.startInternal(StandardManager.java:461) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5643) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:899) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:875) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:652) at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1260) at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:2002) at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source) at java.util.concurrent.FutureTask.run(Unknown Source) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source)
看到这个错误，一头雾水，从来没有见过这个错误，以为是tomcat7的缘故，又换位tomcat6，发布启动之后，我叉，有出现错误：
SEVERE: Cannot find message associated with key managerBase.digest java.security.NoSuchAlgorithmException: MD5 MessageDigest not available at sun.security.jca.GetInstance.getInstance(Unknown Source) at java.security.Security.getImpl(Unknown Source) at java.security.MessageDigest.getInstance(Unknown Source) at org.apache.catalina.session.ManagerBase.getDigest(ManagerBase.java:478) at org.apache.catalina.session.ManagerBase.generateSessionId(ManagerBase.java:1220) at org.apache.catalina.session.StandardManager.start(StandardManager.java:636) at org.apache.catalina.core.ContainerBase.setManager(ContainerBase.java:448) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4665) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:803) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:780) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:583) at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:676) at org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:602) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:503) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1322) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:325) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1069) at org.apache.catalina.core.StandardHost.start(StandardHost.java:822) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1061) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:463) at org.apache.catalina.core.StandardService.start(StandardService.java:525) at org.apache.catalina.core.StandardServer.start(StandardServer.java:759) at org.apache.catalina.startup.Catalina.start(Catalina.java:595) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
然后，干脆就去掉项目，单独的启动tomcat6 和 tomcat7，我叉，还是一样的错误，这说明 原来的项目是没有问题的，那就是 MyEclipse10 和 tomcat的原因了。
因为tomcat6和tomcat7 依赖的是 JDK7，所以报了这个错，原因还不清楚，但是在eclipse中 tomcat6 和 tomcat7 是可以使用JDK7的。于是，把tomcat6 和 tomcat7 依赖的JDK7换为 MyEclipse10自带的JDK6，重新启动tomcat，我叉，真的就没有问题了。
java.security.NoSuchAlgorithmException: SHA1PRNG SecureRandom not available
标签：myeclipse creat manager number cep lan soc with instance
原文地址：http://www.cnblogs.com/xbq8080/p/7289558.html
