Java file copy and upload operation

Using java to copy files can be used everywhere. Here is a summary of a class for your reference. There are two methods:

Where: srcfilename file name to be copied descfilename target file name overlay whether to overwrite if the target file exists. If the copy is successful, return true, otherwise return false

code:

Regardless of multithreading optimization, the fastest method for single thread file replication is (the larger the file, the more advantages this method has, generally 30 +% faster than the common methods):

If you need to monitor the replication progress, you can use the second fastest method (pay attention to the size of the buffer, which has a great impact on the speed):

Common methods 1 are:

Common methods 2 are:

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