collections - 将两张 map 合并到 Groovy 中的结果 map

Question

我有两张 map :

firstMap = [totalProjectCount:53, activeProjectCount:29, completedProjectCount:1, userCount:85]
secondMap = [totalProjectCount:48, activeProjectCount:41, completedProjectCount:0, userCount:123]

我需要结果，例如:

resultMap = [totalProjectCount:101, activeProjectCount:70, completedProjectCount:1, userCount:208]

Answer 1

Map additionJoin( Map firstMap, Map secondMap )
{
  def resultMap = [:];
  resultMap.putAll( firstMap );
  resultMap.putAll( secondMap );

  resultMap.each { key, value ->
    if( firstMap[key] && secondMap[key] )
    {
      resultMap[key] = firstMap[key] + secondMap[key]
    }
  }

  return resultMap;
}

def firstMap = [totalProjectCount:53, activeProjectCount:29, completedProjectCount:1, userCount:85]
def secondMap = [totalProjectCount:48, activeProjectCount:41, completedProjectCount:0, userCount:123]


def resultMap = additionJoin( firstMap , secondMap  )

println resultMap