List<String> paramList = new ArrayList<String>( );
paramList.add( "param1" );
paramList.add( "param2" );
StringBuilder result = new StringBuilder();
for ( String p : paramList )
{
result.append( p ).append( ", " );
}
String withoutLastComma = result.substring( 0, result.length( ) - ", ".length( ) );
System.err.println( withoutLastComma );
有更好的办法来去掉最后一个逗号吗?
StringUtils.join() //apache commons-lang api