go语言post请求遭遇403反爬解决tls/ja3指纹或Cloudflare防护

一、解决办法

使用tls-client库，请求示例如下：

package mainimport("bytes""encoding/json""fmt""io""time"http"github.com/bogdanfinn/fhttp"tls_client"github.com/bogdanfinn/tls-client""github.com/bogdanfinn/tls-client/profiles")funcmain(){url :="https://xxxxx.com/abc/ddd"// 构造 JSON body data :=map[string]interface{}{"aa":map[string]interface{}{},"bb":map[string]interface{}{"we":30,"ty":0},"aaaa":"",}jsonBytes, _ :=json.Marshal(data)// 创建 tls-client client, err :=tls_client.NewHttpClient(tls_client.NewNoopLogger(), tls_client.WithTimeoutSeconds(25), tls_client.WithClientProfile(profiles.Okhttp4Android11), tls_client.WithProxyUrl("http://127.0.0.1:7890"), // 代理按需保留)iferr!=nil{panic(err)}// 创建请求 req, err :=http.NewRequest("POST", url, bytes.NewReader(jsonBytes))iferr!=nil{panic(err)}// 设置必要头（保持简洁，便于排查） req.Header=http.Header{}req.Header.Add("Content-Type","application/json; charset=utf-8")start :=time.Now()resp, err :=client.Do(req)iferr!=nil{panic(err)}defer resp.Body.Close()b, _ :=io.ReadAll(resp.Body)fmt.Println("状态码:", resp.StatusCode)fmt.Println("耗时:", time.Since(start))fmt.Println("响应头:", resp.Header)fmt.Println("响应体:", string(b))}