简单的Velocity使用

需要用Velocity处理一个邮件模板,有些逻辑不好直接处理,下面查语法实现拼接的逻辑,亲测可用

foreach指定循环次数

##截取原始字符串 "一,二,三,四,五,六"   ,小于20直接输出,大于20只输出20个,同时后缀"等"
#set($escort = $!str.split(','))
#set($person = "")
#if ($escort.size()>20)
    #foreach($item in $escort)
        #if($velocityCount < 20)
            #set ($person = $person + $item+",")
        #elseif($velocityCount == 20)
            #set ($person = $person + $item+"等")        
        #end        
    #end        
#else
    #set($person = $!str)
#end

截取字符串的部分,然后拼接

##原始字符串"测试-123,华为-235,小米-233,苹果-666" 重新拼接,输出"测试,华为,小米,苹果"
#set($compagnes = $!str.split(','))
#set($accompany = "")
#foreach($item in $compagnes)
    #set ($subArray = $item.split("-"))                            
    #if($velocityCount != $compagnes.size())
        #set ($accompany = $accompany + $subArray.get(0)+",")
    #else
        #set ($accompany = $accompany + $subArray.get(0))
    #end
#end