feat(Go-StudyExample):

2021/01/27:新增mapstructure源码阅读和单测代码

SourceAnalysisAndTool/mapstructure/DefaultHook_test.go

@@ -0,0 +1,17 @@
+/*
+ *  @Author : huangzj
+ *  @Time : 2021/1/25 16:09
+ *  @Description：
+ */
+
+package example
+
+import (
+	"github.com/mitchellh/mapstructure"
+	"testing"
+)
+
+func TestDefaultHook(t *testing.T) {
+	//在 mitchellh/mapstructure 这个工程中提供了部分的默认Hook方法，主要作用是进行转换，具体可以查看源码
+	mapstructure.StringToIPNetHookFunc()
+}

SourceAnalysisAndTool/mapstructure/Mapstructure_test.go

@@ -0,0 +1,132 @@
+package example
+
+import (
+	entity2 "Go-StudyExample/entity"
+	"encoding/json"
+	"fmt"
+	"github.com/goinggo/mapstructure"
+	"testing"
+)
+
+//-----------------------json数据---------------------
+var document = `{"loginName":"sptest1","userType":{"userTypeId":1,"userTypeName":"normal_user","t":"2026-01-02 15:04:05"}}`
+
+var document1 = `{"cobrandId":10010352,"channelId":-1,"locale":"en_US","tncVersion":2,"people":[{"name":"jack","age":{"birth":10,"year":2000,"animals":[{"barks":"yes","tail":"yes"},{"barks":"no","tail":"yes"}]}},{"name":"jill","age":{"birth":11,"year":2001}}]}`
+
+var document2 = `[{"name":"bill"},{"name":"lisa"}]`
+
+var document3 = `{"categories":["12","222","333"],"people":{"name":"jack","age":{"birth":10,"year":2000,"animals":[{"barks":"yes","tail":"yes"},{"barks":"no","tail":"yes"}]}}}`
+
+//-----------------------------结构体-----------------------
+type Animal struct {
+	Barks string `jpath:"barks"`
+}
+
+type People struct {
+	Age     int      `jpath:"age.birth"` // jpath is relative to the array
+	Animals []Animal `jpath:"age.animals"`
+}
+
+type Items struct {
+	Categories []string `jpath:"categories"`
+	Peoples    []People `jpath:"people"` // Specify the location of the array
+}
+
+type Items1 struct {
+	Categories []string `mapstructure:"Categories"`
+	Peoples    People1  `mapstructure:"People"` // Specify the location of the array
+}
+
+type People1 struct {
+	Age     int      `mapstructure:"age.birth"` // jpath is relative to the array
+	Animals []Animal `mapstructure:"age.animals"`
+}
+
+type NameDoc struct {
+	Name string `jpath:"name"`
+}
+
+//---------------------------------测试方法------------------------
+
+//基本测试
+func TestMapStructureTestFunc(t *testing.T) {
+	var te entity2.Entity
+	m := make(map[string]interface{})
+	m["Num"] = 1
+	m["S"] = "test"
+	m["T"] = map[string]string{"1": "1", "2": "2"}
+
+	err := mapstructure.Decode(m, &te)
+	if err != nil {
+		panic(err.Error())
+	}
+
+	fmt.Print(te.Num, " ", te.S, " ", te.T)
+}
+
+//基本测试
+func TestMapStructureTestFunc1(t *testing.T) {
+	var docMap map[string]interface{}
+	_ = json.Unmarshal([]byte(document), &docMap)
+
+	var user entity2.User
+	err := mapstructure.Decode(docMap, &user)
+
+	if err != nil {
+		panic(err.Error())
+	}
+	fmt.Println(user.T.Format("2006-01-02 15:04:05"))
+	fmt.Println(user, " ", user.UserType.UserTypeId, " ", user.UserType.UserTypeName)
+}
+
+//测试切片转换
+func TestMapStructureTestFunc2(t *testing.T) {
+
+	sliceScript := []byte(document2)
+	var sliceMap []map[string]interface{}
+	_ = json.Unmarshal(sliceScript, &sliceMap)
+
+	var myslice []NameDoc
+	err := mapstructure.DecodeSlicePath(sliceMap, &myslice)
+
+	if err != nil {
+		panic(err.Error())
+	}
+
+	fmt.Println(myslice[0], " ", myslice[1])
+}
+
+//测试DecodePath
+func TestMapStructureTestFunc3(t *testing.T) {
+	docScript := []byte(document1)
+	var docMap map[string]interface{}
+	_ = json.Unmarshal(docScript, &docMap)
+
+	var items Items
+	err := mapstructure.DecodePath(docMap, &items)
+	if err != nil {
+		panic(err.Error())
+	}
+	fmt.Println(items.Peoples[0], items.Peoples[1])
+}
+
+//MetaData的测试例子
+//decode不支持 mapstructure的标识是  xxxx.xxxx
+//并且这边是对tag别名不区分大小写的
+func TestMetaData(t *testing.T) {
+	var items1 Items1
+	config := &mapstructure.DecoderConfig{
+		Metadata: &mapstructure.Metadata{
+			Keys:   nil,
+			Unused: nil,
+		},
+		Result: &items1,
+	}
+	decoder, _ := mapstructure.NewDecoder(config)
+	docScript := []byte(document3)
+	var docMap map[string]interface{}
+	_ = json.Unmarshal(docScript, &docMap)
+
+	_ = decoder.Decode(docMap)
+	fmt.Println(config.Metadata)
+}

SourceAnalysisAndTool/mapstructure/Readme.md

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+## 官方包获取方式
+    
+    go get github.com/goinggo/mapstructure
+
+## 官方提供默认Hook 
+获取方式: 
+  
+    go get github.com/mitchellh/mapstructure
+    
+