在Groovy

Question

我正在尝试在Groovy中创建一个Recipe项目，目前我有一个包含配方ID和配方名称的简单配方类，然后我有一个RecipeBook类，它创建一个新的地图然后调用一个方法addRecipe将配方添加到地图中。目前我的食谱只是在地图中覆盖彼此，而不是一个接一个地添加。

   class Recipe {

        int id
        String name
        def ingredients

    }

class RecipeBook {

    // Create a map to store our recipes
    def recipeList = [:]

    // Use closure to add recipes to the map
    def addRecipe =  { id,name ->
        Recipe recipe = new Recipe(id: id, name: name)
        recipeList.put('id',recipe.id)
        recipeList.put('name',recipe.name)
        // Last element gets returned
        recipeList
    }


}
RecipeBook recipe = new RecipeBook()

recipe.addRecipe(1, "Chicken Soup")

recipe.addRecipe(2, "Lemon Chicken")

println recipe.recipeList

添加2个食谱后，我的阵列只有2个：柠檬鸡

Answer 1

您不能将recipe添加到recipeList，但是在每次addRecipe来电时，您设置了recipeList.id和recipelist.name。我想而不是

recipeList.put('id',recipe.id)
recipeList.put('name',recipe.name)

你想要像

这样的东西

recipeList.put id, recipe