json_tool/filter.go

@@ -20,12 +20,23 @@ import (
 	"git.zhangdeman.cn/zhangdeman/gopkg/util"
 )
 
+// MapDataRule 数据映射结果
+//
+// Author : go_developer@163.com<白茶清欢>
+//
+// Date : 5:09 PM 2022/1/17
+type MapDataRule struct {
+	MapKey        string
+	DefaultValue  string
+	IsComplexType bool
+}
+
 // NewFilter 获取解析的实例
 //
 // Author : go_developer@163.com<白茶清欢>
 //
 // Date : 10:43 下午 2021/3/14
-func NewFilter(data interface{}, rule map[string]string) *Filter {
+func NewFilter(data interface{}, rule map[string]MapDataRule) *Filter {
 	return &Filter{
 		data: data,
 		rule: rule,
@@ -39,7 +50,7 @@ func NewFilter(data interface{}, rule map[string]string) *Filter {
 // Date : 10:41 下午 2021/3/14
 type Filter struct {
 	data interface{}
-	rule map[string]string
+	rule map[string]MapDataRule
 }
 
 // Result 数据过滤结果
@@ -54,12 +65,12 @@ func (f *Filter) Result() (*DynamicJSON, error) {
 	result := NewDynamicJSON()
 	byteData, _ := json.Marshal(f.data)
 	source := string(byteData)
-	for extraDataPath, newDataPath := range f.rule {
+	for extraDataPath, newDataRule := range f.rule {
 		// 为数组的处理
 		pathArr := strings.Split(extraDataPath, ".[].")
 		val := gjson.Get(source, pathArr[0])
 		if len(pathArr) == 1 {
-			f.SetValue(result, newDataPath, val.Value(), false, 0)
+			f.SetValue(result, newDataRule.MapKey, val.Value(), false, 0)
 			continue
 		}
 		// 支持list再抽取一层,处于性能考虑,这么限制,不做递归无限深度处理
@@ -69,9 +80,11 @@ func (f *Filter) Result() (*DynamicJSON, error) {
 			data := item.Map()
 			for _, key := range ketList {
 				if v, exist := data[key]; exist {
-					result.SetValue(strings.ReplaceAll(newDataPath, "[]", fmt.Sprintf("[%d]", idx)), data[key].Raw, v.IsObject() || v.IsArray())
+					result.SetValue(strings.ReplaceAll(newDataRule.MapKey, "[]", fmt.Sprintf("[%d]", idx)), data[key].Value(), v.IsObject() || v.IsArray())
+				} else {
+					// 结果集中不存在对应key,设置默认值
+					result.SetValue(strings.ReplaceAll(newDataRule.MapKey, "[]", fmt.Sprintf("[%d]", idx)), newDataRule.DefaultValue, newDataRule.IsComplexType)
 				}
-				// 结果集中不存在对应key,丢弃
 			}
 		}
 	}

json_tool/json_test.go

@@ -69,13 +69,19 @@ func TestSelect(t *testing.T) {
 		"table": []map[string]interface{}{
 			{"name": "alex", "age": 18, "number": 1},
 			{"name": "bob", "age": 28, "number": 2},
+			{"name": "bob", "age": 28, "number": 2, "list": []int{1, 2, 3}},
 		},
 	}
-	rule := map[string]string{
+	rule := map[string]MapDataRule{
-		"name":          "user_name",
+		"name": {
-		"extra.age":     "user_age",
+			MapKey:        "user_name",
-		"extra.height":  "user_height",
+			DefaultValue:  "用户姓名默认值",
-		"table.[].name": "slice.[].name",
+			IsComplexType: false,
+		},
+		"extra.age":     {MapKey: "user_age", DefaultValue: "用户年龄默认值", IsComplexType: false},
+		"extra.height":  {MapKey: "user_height", DefaultValue: "扩展高度默认值", IsComplexType: false},
+		"table.[].name": {MapKey: "slice.[].name_modify", DefaultValue: "列表姓名默认值", IsComplexType: false},
+		"table.[].list": {MapKey: "slice.[].data_list", DefaultValue: "[\"567\",\"678\",\"789\"]", IsComplexType: true},
 	}
 	filter := NewFilter(source, rule)
 	d, e := filter.Result()