String 用字符串发出问题_String_Go

String 用字符串发出问题

string go

String 用字符串发出问题,string,go,String,Go,我在Golang的弦上有点问题。似乎他们没有被移交给另一个职能部门 func Sendtext(ip string, port string, text string) (err int) { targ := ip + ":" + port raddr,e := net.ResolveTCPAddr("tcp",targ) if e != nil { os.Stdout.WriteString(e.String()+"\n") return 1 } conn,e := net.D

我在Golang的弦上有点问题。似乎他们没有被移交给另一个职能部门

func Sendtext(ip string, port string, text string) (err int) {
targ := ip + ":" + port
raddr,e := net.ResolveTCPAddr("tcp",targ)
if e != nil {
    os.Stdout.WriteString(e.String()+"\n")
    return 1
}
conn,e := net.DialTCP("tcp",nil,raddr)
if e != nil {
    os.Stdout.WriteString(e.String()+"\n")
    return 1
}
conn.Write([]byte(text))
mess := make([]byte,1024)
conn.Read(mess)
message := string(mess)
conn.Close()
if message[0] == 'a' {
    return 0
} else {
    return 1
}
return 0
}

func main() {
os.Stdout.WriteString("Will send URL: ")
url := GetURL()
os.Stdout.WriteString(url + "\n\n")
_, port, pass, ip := browserbridge_config.ReadPropertiesFile()
os.Stdout.WriteString("sending this url to " + ip + ":" + port + "\n")
message := url + "\n" + pass + "\n"
os.Stdout.WriteString("\nsending... ")
e := Sendtext(ip, port, message)
if e != 0 {
    os.Stdout.WriteString("ERROR\n")
    os.Exit(e);
}
os.Stdout.WriteString("DONE\n")
}

fmt.Println("\nmain:", "\nip = |", ip, "| \nport = |", port, "| \ntext = |", message, "|")

fmt.Println("\nSendtext:", "\nip = |", ip, "| \nport = |", port, "| \ntext = |", text, "|")

和我的配置阅读器：

func ReadConfigFile(filename string) (browsercommand string, port string, pass string, ip string) {

// set defaults
browsercommand = "%u"
port = "7896"
pass = "hallo"
ip = "127.0.0.1"

// open file
file, err := os.Open(filename)
if err != nil {
    os.Stdout.WriteString("Error opening config file. proceeding with standard config...")
    return
}


// Get reader and buffer
reader := bufio.NewReader(file)

for {
    part,_,err := reader.ReadLine()
    if err != nil {
        break
    }
    buffer := bytes.NewBuffer(make([]byte,2048))
    buffer.Write(part)
    s := strings.ToLower(buffer.String())

    if strings.Contains(s,"browsercommand=") {
        browsercommand = strings.Replace(s,"browsercommand=","",1)
    } else {
        if strings.Contains(s,"port=") {
            port = strings.Replace(s,"port=","",1)
        } else {
            if strings.Contains(s,"password=") {
                pass = strings.Replace(s,"password=","",1)
            } else {
                if strings.Contains(s,"ip=") {
                    ip = strings.Replace(s,"ip=","",1)
                }
            }
        }
    }
}

return
}

此程序的输出：

Will send URL: test.de

sending this url to 192.168.2.100:7896

sending... 
dial tcp 192.168.2.1:0: connection refused
ERROR

192.168.2.1是网关

我试图在Sendtext的顶部添加os.Stdout.WriteStringtarg或os.Stdout.WriteStringip，但没有得到任何输出

令人困惑的是：昨天在我将ReadConfig迁移到它自己的.go文件之前，它已经工作xD了

我希望你能帮我解决这个问题

塞拉

更新：

正如彼得索所说，问题不在于字符串的移交我的第一个猜测是，这一定是字符串到TCPAddr的转换，这是真的，但这似乎是字符串的问题，而不是网络库的问题。我刚才补充说 ip=192.168.2.100 端口=7896 就在Sendtext呼叫之后，这有助于。。。至少在用户需要设置自定义ip/端口之前

我知道当我决定从goconf切换时，问题就出现了http://code.google.com/p/goconf/ 给我自己。这就是为什么我认为ReadProperties函数存在问题

func Sendtext(ip string, port string, text string) (err int) {
targ := ip + ":" + port
raddr,e := net.ResolveTCPAddr("tcp",targ)
if e != nil {
    os.Stdout.WriteString(e.String()+"\n")
    return 1
}
conn,e := net.DialTCP("tcp",nil,raddr)
if e != nil {
    os.Stdout.WriteString(e.String()+"\n")
    return 1
}
conn.Write([]byte(text))
mess := make([]byte,1024)
conn.Read(mess)
message := string(mess)
conn.Close()
if message[0] == 'a' {
    return 0
} else {
    return 1
}
return 0
}

func main() {
os.Stdout.WriteString("Will send URL: ")
url := GetURL()
os.Stdout.WriteString(url + "\n\n")
_, port, pass, ip := browserbridge_config.ReadPropertiesFile()
os.Stdout.WriteString("sending this url to " + ip + ":" + port + "\n")
message := url + "\n" + pass + "\n"
os.Stdout.WriteString("\nsending... ")
e := Sendtext(ip, port, message)
if e != 0 {
    os.Stdout.WriteString("ERROR\n")
    os.Exit(e);
}
os.Stdout.WriteString("DONE\n")
}

fmt.Println("\nmain:", "\nip = |", ip, "| \nport = |", port, "| \ntext = |", message, "|")

fmt.Println("\nSendtext:", "\nip = |", ip, "| \nport = |", port, "| \ntext = |", text, "|")

我还意识到strconv.Atoiport返回0:7896:无效参数当我将服务器和客户端与实现的不可更改配置一起使用，然后让客户端从配置文件中读取密码时，密码比较失败。当我在没有读取文件的情况下在代码中正确设置密码时，它就工作了

我真的不知道现在该怎么办。。。有什么想法吗？

在main函数中调用Sendtext函数之前插入以下语句作为语句

func Sendtext(ip string, port string, text string) (err int) {
targ := ip + ":" + port
raddr,e := net.ResolveTCPAddr("tcp",targ)
if e != nil {
    os.Stdout.WriteString(e.String()+"\n")
    return 1
}
conn,e := net.DialTCP("tcp",nil,raddr)
if e != nil {
    os.Stdout.WriteString(e.String()+"\n")
    return 1
}
conn.Write([]byte(text))
mess := make([]byte,1024)
conn.Read(mess)
message := string(mess)
conn.Close()
if message[0] == 'a' {
    return 0
} else {
    return 1
}
return 0
}

func main() {
os.Stdout.WriteString("Will send URL: ")
url := GetURL()
os.Stdout.WriteString(url + "\n\n")
_, port, pass, ip := browserbridge_config.ReadPropertiesFile()
os.Stdout.WriteString("sending this url to " + ip + ":" + port + "\n")
message := url + "\n" + pass + "\n"
os.Stdout.WriteString("\nsending... ")
e := Sendtext(ip, port, message)
if e != 0 {
    os.Stdout.WriteString("ERROR\n")
    os.Exit(e);
}
os.Stdout.WriteString("DONE\n")
}

fmt.Println("\nmain:", "\nip = |", ip, "| \nport = |", port, "| \ntext = |", message, "|")

fmt.Println("\nSendtext:", "\nip = |", ip, "| \nport = |", port, "| \ntext = |", text, "|")

输出应如下所示：

main: 
ip = | 192.168.2.100 | 
port = | 7896 | 
text = | test.de
hallo
 |

Sendtext: 
ip = | 192.168.2.100 | 
port = | 7896 | 
text = | test.de
hallo
 |

在Sendtext函数中插入以下语句作为第一条语句

func Sendtext(ip string, port string, text string) (err int) {
targ := ip + ":" + port
raddr,e := net.ResolveTCPAddr("tcp",targ)
if e != nil {
    os.Stdout.WriteString(e.String()+"\n")
    return 1
}
conn,e := net.DialTCP("tcp",nil,raddr)
if e != nil {
    os.Stdout.WriteString(e.String()+"\n")
    return 1
}
conn.Write([]byte(text))
mess := make([]byte,1024)
conn.Read(mess)
message := string(mess)
conn.Close()
if message[0] == 'a' {
    return 0
} else {
    return 1
}
return 0
}

func main() {
os.Stdout.WriteString("Will send URL: ")
url := GetURL()
os.Stdout.WriteString(url + "\n\n")
_, port, pass, ip := browserbridge_config.ReadPropertiesFile()
os.Stdout.WriteString("sending this url to " + ip + ":" + port + "\n")
message := url + "\n" + pass + "\n"
os.Stdout.WriteString("\nsending... ")
e := Sendtext(ip, port, message)
if e != 0 {
    os.Stdout.WriteString("ERROR\n")
    os.Exit(e);
}
os.Stdout.WriteString("DONE\n")
}

fmt.Println("\nmain:", "\nip = |", ip, "| \nport = |", port, "| \ntext = |", message, "|")

fmt.Println("\nSendtext:", "\nip = |", ip, "| \nport = |", port, "| \ntext = |", text, "|")

输出应如下所示：

main: 
ip = | 192.168.2.100 | 
port = | 7896 | 
text = | test.de
hallo
 |

Sendtext: 
ip = | 192.168.2.100 | 
port = | 7896 | 
text = | test.de
hallo
 |

正如预期的那样，参数通过值传递给参数。

在main函数中调用Sendtext函数之前插入以下语句作为语句

func Sendtext(ip string, port string, text string) (err int) {
targ := ip + ":" + port
raddr,e := net.ResolveTCPAddr("tcp",targ)
if e != nil {
    os.Stdout.WriteString(e.String()+"\n")
    return 1
}
conn,e := net.DialTCP("tcp",nil,raddr)
if e != nil {
    os.Stdout.WriteString(e.String()+"\n")
    return 1
}
conn.Write([]byte(text))
mess := make([]byte,1024)
conn.Read(mess)
message := string(mess)
conn.Close()
if message[0] == 'a' {
    return 0
} else {
    return 1
}
return 0
}

func main() {
os.Stdout.WriteString("Will send URL: ")
url := GetURL()
os.Stdout.WriteString(url + "\n\n")
_, port, pass, ip := browserbridge_config.ReadPropertiesFile()
os.Stdout.WriteString("sending this url to " + ip + ":" + port + "\n")
message := url + "\n" + pass + "\n"
os.Stdout.WriteString("\nsending... ")
e := Sendtext(ip, port, message)
if e != 0 {
    os.Stdout.WriteString("ERROR\n")
    os.Exit(e);
}
os.Stdout.WriteString("DONE\n")
}

fmt.Println("\nmain:", "\nip = |", ip, "| \nport = |", port, "| \ntext = |", message, "|")

fmt.Println("\nSendtext:", "\nip = |", ip, "| \nport = |", port, "| \ntext = |", text, "|")

输出应如下所示：

main: 
ip = | 192.168.2.100 | 
port = | 7896 | 
text = | test.de
hallo
 |

Sendtext: 
ip = | 192.168.2.100 | 
port = | 7896 | 
text = | test.de
hallo
 |

在Sendtext函数中插入以下语句作为第一条语句

func Sendtext(ip string, port string, text string) (err int) {
targ := ip + ":" + port
raddr,e := net.ResolveTCPAddr("tcp",targ)
if e != nil {
    os.Stdout.WriteString(e.String()+"\n")
    return 1
}
conn,e := net.DialTCP("tcp",nil,raddr)
if e != nil {
    os.Stdout.WriteString(e.String()+"\n")
    return 1
}
conn.Write([]byte(text))
mess := make([]byte,1024)
conn.Read(mess)
message := string(mess)
conn.Close()
if message[0] == 'a' {
    return 0
} else {
    return 1
}
return 0
}

func main() {
os.Stdout.WriteString("Will send URL: ")
url := GetURL()
os.Stdout.WriteString(url + "\n\n")
_, port, pass, ip := browserbridge_config.ReadPropertiesFile()
os.Stdout.WriteString("sending this url to " + ip + ":" + port + "\n")
message := url + "\n" + pass + "\n"
os.Stdout.WriteString("\nsending... ")
e := Sendtext(ip, port, message)
if e != 0 {
    os.Stdout.WriteString("ERROR\n")
    os.Exit(e);
}
os.Stdout.WriteString("DONE\n")
}

fmt.Println("\nmain:", "\nip = |", ip, "| \nport = |", port, "| \ntext = |", message, "|")

fmt.Println("\nSendtext:", "\nip = |", ip, "| \nport = |", port, "| \ntext = |", text, "|")

输出应如下所示：

main: 
ip = | 192.168.2.100 | 
port = | 7896 | 
text = | test.de
hallo
 |

Sendtext: 
ip = | 192.168.2.100 | 
port = | 7896 | 
text = | test.de
hallo
 |

正如预期的那样，参数通过值传递给参数。

解决了它。问题是将2048长[]字节转换为字符串。这使得字符串长度相等，但后面有很多零字符。

因此，在ReadConfig末尾对所有值运行ip=strings.Replaceip、string0、-1解决了这个问题。

解决了这个问题。问题是将2048长[]字节转换为字符串。这使得字符串长度相等，但后面有很多零字符。因此，在ReadConfig末尾对所有值运行ip=strings.Replaceip、string0、-1解决了问题。

Go bytes包：

NewBuffer创建并初始化一个新的缓冲区，使用buf作为其初始内容。其目的是准备一个要读取的缓冲区现有数据。它还可以用于调整内部缓冲区的大小写为此，buf应具有所需的容量，但长度为零

在大多数情况下，newBuffer或只是声明一个缓冲区变量比纽伯弗更好。特别是，传递非空buf 到新缓冲区，然后写入缓冲区将覆盖buf，不是附加到它上面

在ReadConfigFile函数中，您可以编写：

buffer := bytes.NewBuffer(make([]byte,2048))
buffer.Write(part)

make[]byte，2048函数调用为缓冲区创建长度和容量为2048字节的初始片。Writepart函数调用通过覆盖缓冲区来写入部分。至少，您应该编写make[]byte，02048，以便最初将缓冲区片的长度设置为零，容量设置为2048字节

ReadConfigFile函数还有其他缺陷。例如，key=value格式非常严格，只识别硬编码到函数中的键，如果未提供配置文件，则不会返回默认值，配置文件未关闭，等等。下面是配置文件读取器的基本实现

package main

import (
    "bufio"
    "fmt"
    "os"
    "strings"
)

type Config map[string]string

func ReadConfig(filename string) (Config, os.Error) {
    config := Config{
        "browsercommand": "%u",
        "port":           "7896",
        "password":       "hallo",
        "ip":             "127.0.0.1",
    }
    if len(filename) == 0 {
        return config, nil
    }
    file, err := os.Open(filename)
    if err != nil {
        return nil, err
    }
    defer file.Close()
    rdr := bufio.NewReader(file)
    for {
        line, err := rdr.ReadString('\n')
        if eq := strings.Index(line, "="); eq >= 0 {
            if key := strings.TrimSpace(line[:eq]); len(key) > 0 {
                value := ""
                if len(line) > eq {
                    value = strings.TrimSpace(line[eq+1:])
                }
                config[key] = value
            }
        }
        if err == os.EOF {
            break
        }
        if err != nil {
            return nil, err
        }
    }
    return config, nil
}

func main() {
    config, err := ReadConfig(`netconfig.txt`)
    if err != nil {
        fmt.Println(err)
    }
    fmt.Println("config:", config)
    ip := config["ip"]
    pass := config["password"]
    port := config["port"]
    fmt.Println("values:", ip, port, pass)
}

输入：

[a section]
key=value
; a comment
port = 80
  password  =  hello  
 ip= 217.110.104.156
# another comment
 url =test.de
file =

输出：

config: map[browsercommand:%u key:value port:80 ip:217.110.104.156 url:test.de
file: password:hello]
values: 217.110.104.156 80 hello

Go字节包：

在大多数情况下，newBuffer或只是声明一个缓冲区变量比纽伯弗更好。特别是，传递非空buf 到新缓冲区，然后写入缓冲区将覆盖buf，不是附加到它上面

在ReadConfigFile函数中，您可以编写：

buffer := bytes.NewBuffer(make([]byte,2048))
buffer.Write(part)

make[]byte，2048函数调用为缓冲区创建长度和容量为2048字节的初始片。Writepart函数调用通过覆盖缓冲区来写入部分。至少，您应该编写make[]字节02048，以便最初为缓冲区片提供零长度和容量 2048字节

package main

import (
    "bufio"
    "fmt"
    "os"
    "strings"
)

type Config map[string]string

func ReadConfig(filename string) (Config, os.Error) {
    config := Config{
        "browsercommand": "%u",
        "port":           "7896",
        "password":       "hallo",
        "ip":             "127.0.0.1",
    }
    if len(filename) == 0 {
        return config, nil
    }
    file, err := os.Open(filename)
    if err != nil {
        return nil, err
    }
    defer file.Close()
    rdr := bufio.NewReader(file)
    for {
        line, err := rdr.ReadString('\n')
        if eq := strings.Index(line, "="); eq >= 0 {
            if key := strings.TrimSpace(line[:eq]); len(key) > 0 {
                value := ""
                if len(line) > eq {
                    value = strings.TrimSpace(line[eq+1:])
                }
                config[key] = value
            }
        }
        if err == os.EOF {
            break
        }
        if err != nil {
            return nil, err
        }
    }
    return config, nil
}

func main() {
    config, err := ReadConfig(`netconfig.txt`)
    if err != nil {
        fmt.Println(err)
    }
    fmt.Println("config:", config)
    ip := config["ip"]
    pass := config["password"]
    port := config["port"]
    fmt.Println("values:", ip, port, pass)
}

输入：

[a section]
key=value
; a comment
port = 80
  password  =  hello  
 ip= 217.110.104.156
# another comment
 url =test.de
file =

输出：

config: map[browsercommand:%u key:value port:80 ip:217.110.104.156 url:test.de
file: password:hello]
values: 217.110.104.156 80 hello

好的，问题似乎是转换到TCPAddr。。。我正在尝试修复它…好的，问题似乎是转换到TCPADD。。。我现在正试图修复它…你没有修复真正的错误！首先不要创建2048个零字节！有关详细信息，请参阅我的第二个答案。您没有修复真正的错误！首先不要创建2048个零字节！有关详细信息，请参阅我的第二个答案。谢谢，我知道所有这些问题。这是我第一次玩直接从文件本身读取文件的游戏。。。在改进程序之前，我首先想解决这个问题。我不会复制你的全部代码，因为我想自己做这件事，但谢谢你。我谈到了ReadConfig函数有其他缺陷后的部分。。。关于制作功能和缓冲区的提示：谢谢。谢谢，我知道所有这些问题。这是我第一次玩直接从文件本身读取文件的游戏。。。在改进程序之前，我首先想解决这个问题。我不会复制你的全部代码，因为我想自己做这件事，但谢谢你。我谈到了ReadConfig函数有其他缺陷后的部分。。。关于制作功能和缓冲区的提示：谢谢。