如何在FreeMarker Java中用换行符替换逗号

Question

如何在FreeMarker Java（.ftl）中用换行符替换逗号

Given string  
 test,test123,test1234

       Expected Result 
                test 
                test123 
                test1234

Answer 1

  test,test123,test1234

  (',', '<br/>') will split this string


        test 
        test123 
        test1234