的AccessControlException：拒绝访问 - 的FilePermission [英] AccessControlException: access denied - FilePermission

问题描述

我使用JRE7。我已经签署使用的jarsigner的jar文件。但我仍得到的异常

I am using JRE7. I have signed the jar file using jarsigner. But still I get the exception

java.security.AccessControlException: access denied ("java.io.FilePermission" 
    "C:\Program Files\Java\jre7\lib\ext\Cert.P12" "read") 

我想读的Cert.P12存储在该目录中。

I am trying to read the Cert.P12 stored in that directory.

我生成使用密钥工具的证书，并签署了罐子。当浏览器提示我，我接受了证书。是不是因为它不是我收到此错误一个真正的证书吗？

I generated certificate using keytool and signed the jar. When the browser prompted me i accepted the certificate. Is it because it is not a real certificate I am getting this error?

这code读取该文件是一个applet code。

This code to read the file is an applet code.

HTTP：//www-personal.umich埃杜/〜lsiden /教程/签署的小程序/签订-applet.html 提到，如果签订的错误就会消失。但它确实不适合我。

http://www-personal.umich.edu/~lsiden/tutorials/signed-applet/signed-applet.html mentions that if it is signed the error will vanish. But it did not for me.

推荐答案

如果，即使签约后的小程序，你仍然可以获得一个SecurityException，尝试运行code作为特权code：

If, even after signing the applet, you still get a SecurityException, try running the code as privileged code:

AccessController.doPrivileged(new PrivilegedAction() {
    public Object run() {
        // perform the security-sensitive operation here
        return null;
    }
});

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