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报错堆栈如下：
Caused by: java.security.InvalidKeyException:Illegal key size or default parameters
& & at javax.crypto.Cipher.a(DashoA13*..)~[na:1.6]
& & at javax.crypto.Cipher.a(DashoA13*..)~[na:1.6]
& & at javax.crypto.Cipher.a(DashoA13*..)~[na:1.6]
& & at javax.crypto.Cipher.init(DashoA13*..)~[na:1.6]
& & at javax.crypto.Cipher.init(DashoA13*..)~[na:1.6]
& & at my.package.Something.decode(RC4Decoder.java:25)~[my.package.jar:na]
Google到问题原因，链接地址如下：
根据回答找到下载新jar包链接地址如下：
把里面的两个jar包：local_policy.jar 和&US_export_policy.jar 替换掉原来安装目录C:\Program Files\Java\jre6\lib\security 下的两个jar包接可以了
然后就重新运行程序，不会报错了，测试代码如下：
public&class&Test&{&&
&&&&public&static&void&main(String[]&args)&throws&Exception&{&&
&&&&&&&&&KeyGenerator&keyGen&=&KeyGenerator.getInstance("AES");&&
&&&&&&&&&keyGen.init(256);&&
&&&&&&&&&SecretKey&key&=&keyGen.generateKey();&&
&&&&&&&&&ObjectOutputStream&oop&=&new&ObjectOutputStream(new&&
&&&&&&&&&FileOutputStream("c:\\key.dat"));&&
&&&&&&&&&oop.writeObject(key);&&
&&&&&&&&&oop.close();&&
&&&&&&&&&&
&&&&&&&&String&strTest&=&"Hello,&Jason";&&
&&&&&&&&byte[]&strAfterAES&=&encryptData(strTest.getBytes());&&
&&&&&&&&System.out.println(new&String(strAfterAES));&&
&&&&&&&&byte[]&strOriContent&=&decryptData(strAfterAES);&&
&&&&&&&&System.out.println(new&String(strOriContent));&&
&&&&public&static&byte[]&encryptData(byte[]&input)&throws&Exception&{&&
&&&&&&&&ObjectInputStream&in&=&new&ObjectInputStream(new&FileInputStream("c:\\key.dat"));&&
&&&&&&&&SecretKey&aeskey&=&(SecretKey)&in.readObject();&&
&&&&&&&&Cipher&c1&=&Cipher.getInstance("AES");&&
&&&&&&&&c1.init(Cipher.ENCRYPT_MODE,&aeskey);&&
&&&&&&&&byte[]&cipherByte&=&c1.doFinal(input);&&
&&&&&&&&return&cipherB&&
&&&&public&static&byte[]&decryptData(byte[]&input)&throws&Exception&{&&
&&&&&&&&ObjectInputStream&in&=&new&ObjectInputStream(new&FileInputStream("c:\\key.dat"));&&
&&&&&&&&SecretKey&aeskey&=&(SecretKey)&in.readObject();&&
&&&&&&&&Cipher&c1&=&Cipher.getInstance("AES");&&
&&&&&&&&c1.init(Cipher.DECRYPT_MODE,&aeskey);&&
&&&&&&&&byte[]&clearByte&=&c1.doFinal(input);&&
&&&&&&&&return&clearB&&
&If ur JVM is IBM JVM pls refer to the below link to update the unlimited key size jars
阅读(...) 评论()16:55 提问
spring 报错，求高手解答
package com.test.
import org.aspectj.lang.JoinP
import org.aspectj.lang.ProceedingJoinP
import org.aspectj.lang.annotation.A
import org.aspectj.lang.annotation.AfterR
import org.aspectj.lang.annotation.AfterT
import org.aspectj.lang.annotation.A
import org.aspectj.lang.annotation.A
import org.aspectj.lang.annotation.B
import org.aspectj.lang.annotation.P
import org.
import com.test.entity.U
@Component
public class AopInterceptor {
@Pointcut("execution(* com.test.impl.*.save(..))")
public void myIntercept(){
@Before("execution(* com.test.impl.*.save(..))")
public void beforeMethod(JoinPoint jp){
System.out.println("save start...");
targetInfo(jp);
@After("myIntercept()")
public void afterMethod(JoinPoint jp){
System.out.println("save end !");
targetInfo(jp);
@AfterReturning(returning="rvt",pointcut="myIntercept()")
public void afterReturning(boolean rvt,JoinPoint jp){
//System.out.println(user);
targetInfo(jp);
@AfterThrowing(throwing="ex",pointcut="myIntercept()")
public void afterThrowing(Throwable ex){
System.out.println("异常为"+ex);
@Around("myIntercept()")
public boolean around(ProceedingJoinPoint jp) throws Throwable{
System.out.println("修改user参数");
String userName =
Object [] args =
jp.getArgs();
if(args!=null&&args.length&0&&(args[0] instanceof User)) {
userName = (((User) args[0]).getName())+"word";
User user = new User();
user.setName(userName);
user.setId(1);
args = new User []{user};
boolean b=(boolean) jp.proceed(args);
System.out.println("执行完目标方法");
public void targetInfo(JoinPoint jp){
System.out.println("目标方法为："+jp.getSignature().getName());
System.out.println("目标方法参数为："+jp.getArgs());
System.out.println("目标对象为："+jp.getTarget());
问题描述：当去掉所有增强方法里的"JoinPoint jp"并且去掉调用targetInfo方法时，程序正常运行，否则就报错，错误如下：
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userDAO' defined in file [E:\workspace\Spring_AOP_annotation_xml\build\classes\com\caijia\impl\MysqlUserDAO.class]: Initializ nested exception is java.lang.IllegalArgumentException: error at ::0 formal unbound in pointcut
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:547)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:304)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:228)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:300)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:195)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:703)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:760)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482)
at org.springframework.context.support.ClassPathXmlApplicationContext.(ClassPathXmlApplicationContext.java:139)
at org.springframework.context.support.ClassPathXmlApplicationContext.(ClassPathXmlApplicationContext.java:83)
at Test_case.testSave(Test_case.java:25)
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.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:459)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:675)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:382)
at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:192)
Caused by: java.lang.IllegalArgumentException: error at ::0 formal unbound in pointcut
at org.aspectj.weaver.tools.PointcutParser.parsePointcutExpression(PointcutParser.java:301)
at org.springframework.aop.aspectj.AspectJExpressionPointcut.buildPointcutExpression(AspectJExpressionPointcut.java:206)
at org.springframework.aop.aspectj.AspectJExpressionPointcut.checkReadyToMatch(AspectJExpressionPointcut.java:192)
at org.springframework.aop.aspectj.AspectJExpressionPointcut.getClassFilter(AspectJExpressionPointcut.java:169)
at org.springframework.aop.support.AopUtils.canApply(AopUtils.java:208)
at org.springframework.aop.support.AopUtils.canApply(AopUtils.java:262)
at org.springframework.aop.support.AopUtils.findAdvisorsThatCanApply(AopUtils.java:294)
at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.findAdvisorsThatCanApply(AbstractAdvisorAutoProxyCreator.java:118)
at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.findEligibleAdvisors(AbstractAdvisorAutoProxyCreator.java:88)
at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.getAdvicesAndAdvisorsForBean(AbstractAdvisorAutoProxyCreator.java:69)
at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.wrapIfNecessary(AbstractAutoProxyCreator.java:376)
at org.springframework.aop.framework.autoproxy.AbstractAutoProxyCreator.postProcessAfterInitialization(AbstractAutoProxyCreator.java:339)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:421)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1558)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
... 36 more
xml配置如下：
&?xml version="1.0" encoding="UTF-8"?&
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
xmlns:util="http://www.springframework.org/schema/util" xmlns:p="http://www.springframework.org/schema/p"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:c="http://www.springframework.org/schema/c"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.0.xsd
http://www.springframework.org/schema/util
http://www.springframework.org/schema/util/spring-util-4.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-4.0.xsd"&
expression="org.aspectj.lang.annotation.Aspect" /&
测试代码如下：
public void testSave() {
ApplicationContext actx= new ClassPathXmlApplicationContext("beans.xml");
UserService us = actx.getBean("userService", UserService.class);
User user = new User();
user.setId(1);
user.setName("hello");
us.save(user);
（us 调用userDAO里的save方法）
搞了一下午确实找不到错误在哪里，哪位帮忙看下子，谢谢了！
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参考这个例子：
用args指明参数
@Before("@annotation(org.haha.web.annotation.BrowAuth) && (args(request,..) || args(..,request))")
public void beforeExec(HttpServletRequest request) {
不行啊，都试过了，我查了资料，JoinPoint 类型的参数在注解上是不需要指明的，JoinPoint 只是获取目标方法的一些信息
没有找到userDao那个bean，看看有没有在userDao中设置短名字
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