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response.go 2.32 KB
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HCY authored 2024-05-10 12:41 +08:00 . c
package core
import (
"compress/gzip"
"encoding/json"
"encoding/xml"
"errors"
"io"
"io/ioutil"
"net/http"
"os"
"bytes"
)
type ResponseFormat string
const (
JSONResponseFormat = ResponseFormat("JSON")
XMLResponseFormat = ResponseFormat("XML")
)
var (
RawRespNilErr = errors.New("raw http response is nil. ")
RawRespBodyNilErr = errors.New("the body of raw http response is nil. ")
)
// 封装标准库中的Response
// 方便处理响应内容信息
type Response struct {
*http.Response
body []byte //缓存响应的Response的body字节内容
}
// 响应的Response的body字节内容保存到文件中去(文件请求)
func (resp *Response) ToFile(filename string) error {
f, err := os.Create(filename)
if err != nil {
return err
}
defer f.Close()
if resp.Response == nil || resp.Response.Body == nil {
return nil
}
defer resp.Response.Body.Close()
_, err = io.Copy(f, resp.Response.Body)
return err
}
// 返回响应的Response的body字节内容
func (resp *Response) Bytes() ([]byte, error) {
if resp.body != nil {
return resp.body, nil
}
if resp.Response == nil {
return nil, RawRespNilErr
}
if resp.Response.Body == nil {
return nil, RawRespBodyNilErr
}
var err error
defer resp.Response.Body.Close()
if resp.Header.Get("Content-Encoding") == "gzip" {
reader, err := gzip.NewReader(resp.Body)
if err != nil {
return nil, err
}
resp.body, err = ioutil.ReadAll(reader)
} else {
resp.body, err = ioutil.ReadAll(resp.Body)
}
// 为了*http.Response能再次使用,重新复制回去
resp.Response.Body = ioutil.NopCloser(bytes.NewReader(resp.body))
return resp.body, err
}
// 将响应的Response的body字节内容以JSON格式转化
func (resp *Response) ToJSON(v interface{}) error {
data, err := resp.Bytes()
if err != nil {
return err
}
return json.Unmarshal(data, v)
}
// 将响应的Response的body字节内容以XML格式转化
func (resp *Response) ToXML(v interface{}) error {
data, err := resp.Bytes()
if err != nil {
return err
}
return xml.Unmarshal(data, v)
}
// 将响应的Response的body字节内容以字符串格式
// 如果为空的话,有可能是转化失败
func (resp *Response) ToString() string {
data, err := resp.Bytes()
if err != nil {
return ""
}
return string(data)
}
func (resp *Response) Close() error {
//resp.body = nil
return nil
}
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backend-gopkg
v1.6.28

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