JAVA刚碰见的问题( java.lang.SecurityException: The jurisdiction policy files are not signed by a trusted signer)
原文:刚碰见的问题
1. failed to load the jni shared library jre bin server jvm.dll
解决:这个主要是eclipse的版本和安装的jdk版本不相同。
2. java.lang.SecurityException: The jurisdiction policy files are not signed by a trusted signer!
解决:主要是因为加密文件的版本和jdk的版本加密文件不相同。查看主类(local_policy.jar,US_export_policy.jar)和jdk的加密文件的版本不相同。
目录C:\Program Files\Java\jdk1.6.0_45\jre\lib\security\下的local_policy.jar,US_export_policy.jar
与 目录C:\Program Files\Java\jre6\lib\security\下的local_policy.jar,US_export_policy.jar版本不一样
JCE8: http://www.oracle.com/technetwork/java/javase/downloads/jce8-download-2133166.html
JCE7: http://www.oracle.com/technetwork/java/embedded/embedded-se/downloads/jce-7-download-432124.html
JCE6: http://www.oracle.com/technetwork/java/javase/downloads/jce-6-download-429243.html
参考:http://stackoverflow.com/questions/9745193/java-lang-securityexception-the-jurisdiction-policy-files-are-not-signed-by-a-t
http://stackoverflow.com/questions/18754243/securityexception-even-after-replacing-crypto-policy-jars
3. 安装不同版本jdk后,java -version不同的问题
解决:我先安装的jdk7,然后在安装jdk6,之前的path全部替换成jdk6,但是执行java -version后显示的还是jdk7,我去。。。 我用的是windows,挺操蛋的windows直接写进注册表了,于是只能卸载掉,重新安装重新配置环境。。。
4. Eclipse The JRE could not be found. Edit the server and change the JRE location.
解决:eclipse->windows->prefrence->server->runtime environment->然后编辑你的tomcat->添加jdk
5. struts2刨析:http://www.iteye.com/topic/829843
6. unable to install breakpoint in
Eclipse Unable to install breakpoint in 的问题总算解决了,重装eclipse无效,最后只有到window-preferences-java-compiler下面
把Add line number attributes..前的勾去掉,然后apply-OK。再window-preferences-java-compiler把勾打上,再apply-OK,问题才解决了,网上有人说这个问题是因为既使用ant编译又使用eclipse编译造成的,依然是困惑中。。。
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