1 3 4 m :=map[string]string{"type":"10","msg":"hello."} mjson,_ :=json.Marshal(m) mString :=string(mjson) fmt.Printf("print mString:%s",mString)
= nil { fmt.Println("Error converting map to JSON:", err) return } // 将[]byte类型的jsonData转换为string jsonString := string(jsonData) // 输出JSON字符串 fmt.Println("JSON String:", jsonString) } 在这个示例中,我们使用了encoding/json包中的Marshal函数将map转换为JSON格式的字节切片([]...
// map to json package main import ( "encoding/json" "fmt" ) func main() { s := []map[string]interface{}{} m1 := map[string]interface{}{"name": "John", "age": 10} m2 := map[string]interface{}{"name": "Alex", "age": 12} s = append(s, m1, m2) s = append(s, ...
func TestMapToStructByJson(t *testing.T) { beforeMap := map[string]interface {}{ "id":"123", "user_name":"酒窝猪", "address":[]map[string]interface{}{{"address": "address01"}, {"address": "address02"}}, } var afterStruct =UserInfoVo{} before := time.Now() marshal, err ...
通过JSON 进行转换 先将map转换成JSON,再通过 JSON 转换成struct 操作有点繁琐 func TestMapToStructByJson(t *testing.T) { beforeMap := map[string]interface {}{ "id":"123", "user_name":"酒窝猪", "address":[]map[string]interface{}{{"address": "address01"}, {"address": "address02"}...
// map to json package main import ( "encoding/json" "fmt" ) func main() { s := []map[string]interface{}{} m1 := map[string]interface{}{ "name": "John", "age": 10} m2 := map[string]interface{}{ "name": "Alex", "age": 12} s = append(s, m1, m2) s = append(s...
package main import ( "bytes" "encoding/json" "fmt" ) func main() { // create a map map1 := map[string]int{ "one": 1, "two": 2, "three": 3, } // create a new buffer var buf bytes.Buffer // create a new encoder that writes to the buffer encoder := json.NewEncoder(...
源码位于encoding/json/encode.go中 type mapEncoder struct { elemEnc encoderFunc } func (me mapEncoder) encode(e *encodeState, v reflect.Value, opts encOpts) { if v.IsNil() {//为nil时,返回null e.WriteString("null") return } e.WriteByte('{') ...
这种方法可能是最常用的,可以毫不费力地将map[string]interface{}映射到我们定义的结构。 在这里,我们并没有为每个字段指定标签,而是让mapstructure自动处理映射。 如果输入是 JSON 字符串,我们首先将其解析为map[string]interface{}格式,然后将其映射到结构中。
源码位于encoding/json/encode.go中 type mapEncoder struct { elemEnc encoderFunc } func (me mapEncoder) encode(e *encodeState, v reflect.Value, opts encOpts) { if v.IsNil() {//为nil时,返回null e.WriteString("null") return } e.WriteByte('{') ...