最近在做3DES加密，在本地window下面运行ok的程序，放到linux环境上竟然报错：
java.security.NoSuchAlgorithmException: Cannot find any provider supporting DESede/CBC/PKCS5Padding at javax.crypto.Cipher.getInstance(Cipher.java:524) at com.haha.encrypt.ThreeDES.encryptMode(ThreeDES.java:30) at com.haha.encrypt.ThreeDES.encryptString(ThreeDES.java:101) at com.haha.mina.MinaServerHandler.sessionIdle(MinaServerHandler.java:91) at org.apache.mina.core.filterchain.DefaultIoFilterChain$TailFilter.sessionIdle(DefaultIoFilterChain.java:665) at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextSessionIdle(DefaultIoFilterChain.java:398) at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1000(DefaultIoFilterChain.java:47) at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.sessionIdle(DefaultIoFilterChain.java:755) at org.apache.mina.core.filterchain.IoFilterAdapter.sessionIdle(IoFilterAdapter.java:95) at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextSessionIdle(DefaultIoFilterChain.java:398) at org.apache.mina.core.filterchain.DefaultIoFilterChain.access$1000(DefaultIoFilterChain.java:47) at org.apache.mina.core.filterchain.DefaultIoFilterChain$EntryImpl$1.sessionIdle(DefaultIoFilterChain.java:755) at org.apache.mina.core.filterchain.IoFilterAdapter.sessionIdle(IoFilterAdapter.java:95) at org.apache.mina.core.filterchain.DefaultIoFilterChain.callNextSessionIdle(DefaultIoFilterChain.java:398) at org.apache.mina.core.filterchain.DefaultIoFilterChain.fireSessionIdle(DefaultIoFilterChain.java:391) at org.apache.mina.core.session.AbstractIoSession.notifyIdleSession0(AbstractIoSession.java:1303) at org.apache.mina.core.session.AbstractIoSession.notifyIdleSession(AbstractIoSession.java:1289) at org.apache.mina.core.session.AbstractIoSession.notifyIdleness(AbstractIoSession.java:1274) at org.apache.mina.core.polling.AbstractPollingIoProcessor.notifyIdleSessions(AbstractPollingIoProcessor.java:760) at org.apache.mina.core.polling.AbstractPollingIoProcessor.access$900(AbstractPollingIoProcessor.java:67) at org.apache.mina.core.polling.AbstractPollingIoProcessor$Processor.run(AbstractPollingIoProcessor.java:1135) at org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:64) 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)
对比了下Security.getProviders()
window下：
INFO 2014-04-30 10:32:12 ServerStarter:67 – 0[SUN]INFO 2014-04-30 10:32:12 ServerStarter:67 – 1[SunRsaSign]INFO 2014-04-30 10:32:12 ServerStarter:67 – 2[SunEC]INFO 2014-04-30 10:32:12 ServerStarter:67 – 3[SunJSSE]INFO 2014-04-30 10:32:12 ServerStarter:67 – 4[SunJCE]INFO 2014-04-30 10:32:12 ServerStarter:67 – 5[SunJGSS]INFO 2014-04-30 10:32:12 ServerStarter:67 – 6[SunSASL]INFO 2014-04-30 10:32:12 ServerStarter:67 – 7[XMLDSig]INFO 2014-04-30 10:32:12 ServerStarter:67 – 8[SunPCSC]INFO 2014-04-30 10:32:12 ServerStarter:67 – 9[SunMSCAPI]
linux下：
INFO 2014-04-30 10:33:55 ServerStarter:66 – 0[SUN]INFO 2014-04-30 10:33:55 ServerStarter:66 – 1[SunRsaSign]INFO 2014-04-30 10:33:55 ServerStarter:66 – 2[SunJSSE]INFO 2014-04-30 10:33:55 ServerStarter:66 – 3[SunJGSS]INFO 2014-04-30 10:33:55 ServerStarter:66 – 4[SunSASL]INFO 2014-04-30 10:33:55 ServerStarter:66 – 5[XMLDSig]INFO 2014-04-30 10:33:56 ServerStarter:66 – 6[SunPCSC]
怀疑是缺少SunJCE造成的，但是在linux的JAVA_HOME/jre/lib/ext目录下，有sunjce_provider.jar包，所以很奇怪。
百思不得其姐，最后在一篇文章里，找到一句话，“找到一个 sunjce_provider.jar 的文件扔到你类路径里”，结果，ok了。。。。
总结失败的原因能够让人越来越谨慎。
