[Go] 使用net包作为tcp客户端读取http

    conn, err := net.Dial("tcp", "www.baidu.com:80")
    if err != nil {
        log.Fatal(err)
    }
    _, err = conn.Write([]byte("GET / HTTP/1.1\r\n\r\n"))
    if err != nil {
        log.Fatal(err)
    }
    var httpBody string
    var httpSize int
    for {
        b := make([]byte, 4096)
        len, err := conn.Read(b)
        if err != nil {
            log.Fatal(err)
        }
        httpBody += string(b[:len])
        httpSize += len
        if b[len-1] == ‘\n‘ && len < 4096 {
            break
        }
    }
    log.Println(httpBody, httpSize)