StringUtils join，合龙字符数组为字符串

StringUtils join，合并字符数组为字符串

String org.apache.commons.lang.StringUtils.join(Collection collection, String separator)

Joins the elements of the provided Collection into a single String containing the provided elements.

No delimiter is added before or after the list. A null separator is the same as an empty String ("").

See the examples here: join(Object[], String).

Parameters:

collection the Collection of values to join together, may be null

separator the separator character to use, null treated as ""

Returns:

the joined String, null if null iterator input

Since:

2.3