golang自动登录https连接并解析得到的json返回值

主要演示go语言自动登录HTPPS连接及cookie的使用，如何解析JSON数据等特性

https返回的json数据格式为

type item struct {
    Id,List_type,Severity            int
    list_type_string,Name,Expiration string
    list_type_name,Severity_name      string
}
type resData struct {
    Total_count,Total_page,Expect_page,Num_per_page int
    Sort_by,Sort_order                                string
    List                                               []item
}

注意结构体必须是大写字母开头的成员才会被json.Unmarshal(）处理到，对应的数据样例：

{
    "total_count" : 366,"total_page" : 1,"expect_page" : 1,"num_per_page" : 10000000,"sort_by" : "id","sort_order" : "desc","list" : [{ "id" : 3263,"list_type" : 2,"list_type_string" : "File","name" : "4CDA46B428405E8A155A3AA32E4F25C8EA09B707","severity" : 3,"expiration" : "11/14/2014 04:51:06","list_type_name" : "File","severity_name" : "High" },{ "id" : 3262,"name" : "ECC3F6D2CB227981C12038D620336617C8EC0B64","expiration" : "11/12/2014 10:02:21","severity_name" : "High" } ] }

go源码如下

// https project main.go
package main

import (
    "crypto/tls"
    "encoding/json"
    "fmt"
    "io/ioutil"
    "net/http"
    "net/http/cookiejar"
    "net/url"
)

type item struct {
    Id,Sort_order                                string
    List                                               []item
}

func check(err error) {
    if err != nil {
        panic(err)
    }
}
func main() {

    //登录URL，即提供账号登录的URL
    loginUrl := "https://10.64.71.8/cgi-bin/logon.cgi"
    loginData := url.Values{"usrname": {"admin"},"passwd": {"trend#11"},"isCookieEnable": {"1"}}
    //目标URL，即需要访问的URL
    targetUrl := "https://10.64.71.8/php/blacklist_whitelist_query.php"
    targetData := url.Values{"action": {"query"},"black_or_white": {"sandbox"},"expect_page": {"1"},"num_per_page": {"10000000"},"list_type": {"99"},"keyword": {""},"sort_by": {"id"},"sort_order": {"desc"}}

    var resp *http.Response
    var err error
    var data []byte
    tr := &http.Transport{
        TLSClientConfig:    &tls.Config{InsecureSkipVerify: true},DisableCompression: true,}
    client := &http.Client{Transport: tr}
    //启用cookie
    client.Jar,_ = cookiejar.New(nil)
    resp,err = client.PostForm(loginUrl,loginData)
    check(err)
    resp,err = client.PostForm(targetUrl,targetData)
    check(err)

    if data,err = ioutil.ReadAll(resp.Body); err == nil {
        fmt.Printf("%sn",data)
    }
//解析返回的JSON数据
    var message resData
    err = json.Unmarshal(data,&message)
    check(err)

    fmt.Printf("%+vn",message)
    fmt.Printf("%vt%vn",message.Total_count,message.List[0].Name)

}