Notes for using java.util.zip

1. If there is a path when compressing the file, you also need to use putentry for each level of path.
2. If you want to use zipentry. setmethod (zipentry. sttored) values of size, compression, and CRC must be set. If no compression is performed, the value of size and compression must be the same. The value of size is easy to obtain, that is, the length of the compressed data in bytes, but where is the CRC value? The java.util.zip. CRC class provides this function. You can first use CRC. Update (); then you can get the CRC value from CRC. getvalue.
3. java.uitl.zipdoes not support Chinese keywords and file names. If you want to solve this problem, you do not need to use the java.util.zip package. You can use the package in Apach.