我可以使用POSTMAN chrome扩展来使用字符串数据执行POST请求 .
我需要使用 golang
代码执行相同的操作 .
但我的 Go
代码丢失字符串 INSERT INTO V SET name = 'jack', boss = #11:19
并将空数据发布到服务器 .
package main
import (
"bytes"
"encoding/json"
"fmt"
"log"
"net/http"
)
func main() {
client := &http.Client{}
// Why this stringData is lost and was not send with POST request?
stringData := `INSERT INTO V SET name = 'jack', boss = #11:19`
req, err := http.NewRequest("POST", "http://localhost:2480/command/GratefulDeadConcerts/sql", bytes.NewBufferString(stringData))
req.SetBasicAuth("root", "1")
resp, err := client.Do(req)
if err != nil {
fmt.Printf("Error : %s", err)
}
fmt.Println("resp")
fmt.Println(ToJson(resp))
var b bytes.Buffer
_, err = b.ReadFrom(resp.Body)
if err != nil {
log.Fatal("Error : %s", err)
}
fmt.Println(b.String())
}
func ToJson(obj interface{}) string {
b, err := json.MarshalIndent(&obj, "", " ")
if err != nil {
fmt.Printf("Error : %s", err)
}
strJson := string(b)
return strJson
}
它给出了输出:
resp
{
"Status": "500 Internal Server Error",
"StatusCode": 500,
"Proto": "HTTP/1.1",
"ProtoMajor": 1,
"ProtoMinor": 1,
"Header": {
"Cache-Control": [
"no-cache, no-store, max-age=0, must-revalidate"
],
"Connection": [
"Keep-Alive"
],
"Content-Length": [
"55"
],
"Content-Type": [
"text/plain; charset=utf-8"
],
"Date": [
"Mon Jun 08 10:47:46 MSK 2015"
],
"Pragma": [
"no-cache"
],
"Server": [
"OrientDB Server v.2.0.10 (build UNKNOWN@r; 2015-05-25 16:48:43+0000)"
]
},
"Body": {},
"ContentLength": 55,
"TransferEncoding": null,
"Close": false,
"Trailer": null,
"Request": {
"Method": "POST",
"URL": {
"Scheme": "http",
"Opaque": "",
"User": null,
"Host": "localhost:2480",
"Path": "/command/GratefulDeadConcerts/sql",
"RawQuery": "",
"Fragment": ""
},
"Proto": "HTTP/1.1",
"ProtoMajor": 1,
"ProtoMinor": 1,
"Header": {
"Authorization": [
"Basic cm9vdDox"
]
},
"Body": {
"Reader": {}
},
"ContentLength": 46,
"TransferEncoding": null,
"Close": false,
"Host": "localhost:2480",
"Form": null,
"PostForm": null,
"MultipartForm": null,
"Trailer": null,
"RemoteAddr": "",
"RequestURI": "",
"TLS": null
},
"TLS": null
}
java.lang.IllegalArgumentException: text cannot be null
如何使用GoLang使这个POST请求成功运行,就像我可以使用POSTMAN chrome扩展一样?
更新
我使用curl成功地发出了相同的POST请求 .
curl -X POST -u root:1 -H "Content-Type: application/json" --data-urlencode "INSERT INTO V SET name = 'jack', boss = #11:19" http://localhost:2480/command/GratefulDeadConcerts/sql
它输出:
{"result":[{"@type":"d","@rid":"#9:822","@version":1,"@class":"V","name":null}]}
更新2
当然,我不应该使用 --data-urlencode
来执行 curl
命令 . 有效的curl命令是
curl -X POST -u root:1 -H "Content-Type: application/json" -d "INSERT INTO V SET name = 'jack', boss = #11:19" http://localhost:2480/command/GratefulDeadConcerts/sql
{"result":[{"@type":"d","@rid":"#9:848","@version":1,"@class":"V","name":"jack","boss":"#11:19","@fieldTypes":"boss=x"}]}
我仍然不知道如何制作类似的GoLang POST请求 .
更新3
url.QueryEscape
没帮我 .
package main
import (
"bytes"
"encoding/json"
"fmt"
"log"
"net/http"
"net/url"
)
func main() {
client := &http.Client{}
// Why this stringData is lost and do not pass thgouht POST request?
stringData := `INSERT INTO V SET name = 'jack', boss = #11:19`
stringData = url.QueryEscape(stringData)
req, err := http.NewRequest("POST", "http://localhost:2480/command/GratefulDeadConcerts/sql", bytes.NewBufferString(stringData))
req.SetBasicAuth("root", "1")
req.Header.Set("Content-Type", "Content-Type: text/plain")
resp, err := client.Do(req)
if err != nil {
fmt.Printf("Error : %s", err)
}
fmt.Println("resp")
fmt.Println(ToJson(resp))
var b bytes.Buffer
_, err = b.ReadFrom(resp.Body)
if err != nil {
log.Fatal("Error : %s", err)
}
fmt.Println(b.String())
}
func ToJson(obj interface{}) string {
b, err := json.MarshalIndent(&obj, "", " ")
if err != nil {
fmt.Printf("Error : %s", err)
}
strJson := string(b)
return strJson
}
结果是一样的:
resp
{
"Status": "500 Internal Server Error",
"StatusCode": 500,
"Proto": "HTTP/1.1",
"ProtoMajor": 1,
"ProtoMinor": 1,
"Header": {
"Cache-Control": [
"no-cache, no-store, max-age=0, must-revalidate"
],
"Connection": [
"Keep-Alive"
],
"Content-Length": [
"55"
],
"Content-Type": [
"text/plain; charset=utf-8"
],
"Date": [
"Mon Jun 08 19:39:12 MSK 2015"
],
"Pragma": [
"no-cache"
],
"Server": [
"OrientDB Server v.2.0.10 (build UNKNOWN@r; 2015-05-25 16:48:43+0000)"
]
},
"Body": {},
"ContentLength": 55,
"TransferEncoding": null,
"Close": false,
"Trailer": null,
"Request": {
"Method": "POST",
"URL": {
"Scheme": "http",
"Opaque": "",
"User": null,
"Host": "localhost:2480",
"Path": "/command/GratefulDeadConcerts/sql",
"RawQuery": "",
"Fragment": ""
},
"Proto": "HTTP/1.1",
"ProtoMajor": 1,
"ProtoMinor": 1,
"Header": {
"Authorization": [
"Basic cm9vdDox"
],
"Content-Type": [
"Content-Type: text/plain"
]
},
"Body": {
"Reader": {}
},
"ContentLength": 60,
"TransferEncoding": null,
"Close": false,
"Host": "localhost:2480",
"Form": null,
"PostForm": null,
"MultipartForm": null,
"Trailer": null,
"RemoteAddr": "",
"RequestURI": "",
"TLS": null
},
"TLS": null
}
java.lang.IllegalArgumentException: text cannot be null
另外,我在 curl
命令中将content-type更改为 text/plain
.
curl -X POST -u root:1 -H "Content-Type: text/plain" -d "INSERT INTO V SET name = 'jack', boss = #11:19" http://localhost:2480/command/GratefulDeadConcerts/sql
{"result":[{"@type":"d","@rid":"#9:858","@version":1,"@class":"V","name":"jack","boss":"#11:19","@fieldTypes":"boss=x"}]}
结果是一样的, curl
没问题,但 golang
POST不行 .
更新4
我想做什么?我正在实现OrientDB REST-interface来执行来自 GO
应用程序的查询 .
1 回答
阅读文档显然有帮助 . 从OrientDB文档文档[1]:
并且您不设置Accept-Encoding标头 . 最有可能这就是你所需要的(而不是逃避身体) .
[1] http://orientdb.com/docs/last/orientdb.wiki/OrientDB-REST.html#headers