将interface {}转换为map

Question

我正在尝试读取一个json文件，其代码如下所示

var configurations map[string]interface{}

func GetConfigMap(name string) interface{} {
    valueMap := configurations[name]
    return valueMap.(map[string]interface{})
}

我正在尝试阅读下面的地图，

glossary := jsonreader.GetConfigMap("glossary")
fmt.Println(glossary["GlossDiv"])

json结构如下，

{    "glossary": {
        "title": "example glossary",
        "GlossDiv": {
            "title": "S",
            "GlossList": {
                "GlossEntry": {
                    "ID": "SGML",
                    "SortAs": "SGML",
                    "GlossTerm": "Standard Generalized Markup Language",
                    "Acronym": "SGML",
                    "Abbrev": "ISO 8879:1986",
                    "GlossDef": {
                        "para": "A meta-markup language, used to create markup languages such as DocBook.",
                        "GlossSeeAlso": ["GML", "XML"]
                    },
                    "GlossSee": "markup"
                }
            }
        }
    }
}

我得到一个例外 -

invalid operation: glossary["GlossDiv"] (type interface {} does not support indexing)

我如何使这项工作？

Answer 1

我根据您的问题不确定您要尝试做什么，但是您是否只能更改该功能的返回类型？

func GetConfigMap(name string) map[string]interface{} {
    valueMap := configurations[name]
    return valueMap.(map[string]interface{})
}