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參考：
http://publib.boulder.ibm.com/infocenter/wasinfo/v6r0/index.jsp?topic=/com.ibm.websphere.express.doc/info/exp/ae/rsec_serverpolicy.html

錯誤信息（在Systemout.Log文件中）
        java.security.AccessControlException: Access denied (java.io.FilePermission  
 解決方法
修改 server.policy 文件，在 install_root/properties/server.policy 中找到此文件。此文件包含這些缺省許可權：

// Allow to use ibm jdk extensions
grant codeBase "file:${was.install.root}/java/ext/-" {
permission java.security.AllPermission;
};
// Allow to use ibm tools
grant codeBase "file:${was.install.root}/java/tools/ibmtools.jar" {
permission java.security.AllPermission;
};
// Allow to use sun tools
grant codeBase "file:/QIBM/ProdData/Java400/jdk14/lib/tools.jar" {
permission java.security.AllPermission;
};
// Allow to use sun tools (V5R2M0 codebase)
grant codeBase "file:/QIBM/ProdData/OS400/Java400/jdk/lib/tools.jar" {
permission java.security.AllPermission;
};
// WebSphere system classes
grant codeBase "file:${was.install.root}/plugins/-" {
permission java.security.AllPermission;
};
grant codeBase "file:${was.install.root}/lib/-" {
permission java.security.AllPermission;
};
grant codeBase "file:${was.install.root}/classes/-" {
permission java.security.AllPermission;
};
// Allow the WebSphere deploy tool all permissions
grant codeBase "file:${was.install.root}/deploytool/-" {
permission java.security.AllPermission;
};
// Allow the WebSphere deploy tool all permissions
grant codeBase "file:${was.install.root}/optionalLibraries/-" {
permission java.security.AllPermission;
};
// Allow Channel Framework classes all permission
grant codeBase "file:${was.install.root}/installedChannels/-" {
permission java.security.AllPermission;
};
grant codeBase "file:${user.install.root}/lib/-" {
permission java.security.AllPermission;
};
grant codeBase "file:${user.install.root}/classes/-" {
permission java.security.AllPermission;
};

如果節點上有一些服務器程序需要許可權，而這些許可權在 server.policy 文件和 server.policy 文件中未定義為缺省值，那么更新 server.policy 文件。缺少許可權將創建 java.security.AccessControlException 異常。缺少的許可權在異常數據中列示。


然后重新啟動服務器