/
http.go
122 lines (107 loc) · 2.75 KB
/
http.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
package util
import (
"bytes"
"encoding/json"
"fmt"
"io"
"io/ioutil"
"mime/multipart"
"net/http"
"os"
)
//HTTPGet get 请求
func HTTPGet(uri string) ([]byte, error) {
response, err := http.Get(uri)
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)
}
//PostJSON post json 数据请求
func PostJSON(uri string, obj interface{}) ([]byte, error) {
jsonData, err := json.Marshal(obj)
if err != nil {
return nil, err
}
jsonData = bytes.Replace(jsonData, []byte("\\u003c"), []byte("<"), -1)
jsonData = bytes.Replace(jsonData, []byte("\\u003e"), []byte(">"), -1)
jsonData = bytes.Replace(jsonData, []byte("\\u0026"), []byte("&"), -1)
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)
}
//PostFile 上传文件
func PostFile(fieldname, filename, uri string) ([]byte, error) {
fields := []MultipartFormField{
{
IsFile: true,
Fieldname: fieldname,
Filename: filename,
},
}
return PostMultipartForm(fields, uri)
}
//MultipartFormField 保存文件或其他字段信息
type MultipartFormField struct {
IsFile bool
Fieldname string
Value []byte
Filename string
}
//PostMultipartForm 上传文件或其他多个字段
func PostMultipartForm(fields []MultipartFormField, uri string) (respBody []byte, err error) {
bodyBuf := &bytes.Buffer{}
bodyWriter := multipart.NewWriter(bodyBuf)
for _, field := range fields {
if field.IsFile {
fileWriter, e := bodyWriter.CreateFormFile(field.Fieldname, field.Filename)
if e != nil {
err = fmt.Errorf("error writing to buffer , err=%v", e)
return
}
fh, e := os.Open(field.Filename)
if e != nil {
err = fmt.Errorf("error opening file , err=%v", e)
return
}
defer fh.Close()
if _, err = io.Copy(fileWriter, fh); err != nil {
return
}
} else {
partWriter, e := bodyWriter.CreateFormField(field.Fieldname)
if e != nil {
err = e
return
}
valueReader := bytes.NewReader(field.Value)
if _, err = io.Copy(partWriter, valueReader); err != nil {
return
}
}
}
contentType := bodyWriter.FormDataContentType()
bodyWriter.Close()
resp, e := http.Post(uri, contentType, bodyBuf)
if e != nil {
err = e
return
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
return nil, err
}
respBody, err = ioutil.ReadAll(resp.Body)
return
}