Go语言结构体转字典实例

结构体转字典实例

column := c.GetStrings("column")

list, count, err := services.NewGcase(services.Slave()).CaseList(NewContext(), params, pageSize, pageNum)
if err != nil {
    c.ErrorCode(ErrCodeRet, http.StatusInternalServerError, "get case list failed")
}

res := make([]map[string]interface{}, 0)
for _, item := range list {
    res = append(res, structConvertMapByTag(item, "json", column))
}

ret := make(map[string]interface{}, 0)
ret["data"] = res
ret["count"] = count
c.Correct(ret)

func structConvertMapByTag(obj interface{}, tagName string, col []string) map[string]interface{} {
    t := reflect.TypeOf(obj)
    v := reflect.ValueOf(obj)
    
    var data = make(map[string]interface{})
    
    for i := 0; i < t.NumField(); i++ {
        if len(col) > 0 {
            for _, item := range col {
                tagName := t.Field(i).Tag.Get(tagName)
                if tagName == item {
                    fmt.Println(tagName)
                    if tagName != "" && tagName != "-" {
                        data[tagName] = v.Field(i).Interface()
                    }
                }
            }
        } else { // 不设置列的时候显示所有字段
            tagName := t.Field(i).Tag.Get(tagName)
            if tagName != "" && tagName != "-" {
                data[tagName] = v.Field(i).Interface()
            }
        }
    
    }
    return data
}