go post请求

import (
	"bytes"
	"encoding/json"
	"fmt"
	"io/ioutil"
	"net/http"
	"strings"
)

//PostJSON post json 数据请求
func PostJSON(uri string, obj interface{}) ([]byte, error) {
	jsonData := make([]byte, 0, 0)
	if str, ok := obj.(string); ok {
		jsonData = []byte(str)
	} else {
		var err error
		jsonData, err = json.Marshal(obj)
		if err != nil {
			return nil, err
		}
	}

	jsonData = bytes.ReplaceAll(jsonData, []byte("\\u003c"), []byte("<"))
	jsonData = bytes.ReplaceAll(jsonData, []byte("\\u003e"), []byte(">"))
	jsonData = bytes.ReplaceAll(jsonData, []byte("\\u0026"), []byte("&"))
	body := bytes.NewBuffer(jsonData)
	response, err := http.Post(uri, "application/json;charset=utf-8", body)
	if err != nil {
		return nil, err
	}
	defer response.Body.Close()

	if response.StatusCode != http.StatusOK {
		return nil, fmt.Errorf("http get error : uri=%v , statusCode=%v", uri, response.StatusCode)
	}
	return ioutil.ReadAll(response.Body)
}