The phenomenon uses the Weixin-java-tools packet docking enterprise number, when activating the callback URL, an exception occurred, AES encryption failed, reported Java.security.InvalidKeyException:illegal Key Size, This error occurs when the key is greater than the 128-bit times.
Solution to Oracle official website Download the JCE unrestricted rights policy file (note the corresponding version), unzip after download, you can see Local_policy.jar and Us_export_policy.jar and Readme.txt. If the JRE is installed, two jar files are placed in the%jre_home% \lib\security directory to overwrite the original files, and if the JDK is installed, the two jar files are placed in the%jdk_home%\jre\lib\security directory to overwrite the original files.
:
Http://www.oracle.com/technetwork/java/javase/downloads/jce-7-download-432124.html
Java.security.InvalidKeyException:illegal Key Size