使用端口解析连接字符串 [英] Parsing a connection string with a port

问题描述

我在服务器上有以下连接字符串:

I have the following connections string at a server:

val connStr = "redis://redistogo:[e-mail]:10333/"

我必须使用的 redis 客户端，没有适合此连接字符串的构造函数，它只有一个分别带有主机和端口的构造函数:

The redis client I have to use, doesn't have a constructor appropriate for this connection string, it has only a constructor with a host and a port separately:

class SomeRedisClient(val host: String, val port: Int) { ...

.以下代码也不起作用:

. The following code doesn't work either:

val url = new java.net.URL(connStr)

错误 - java.net.MalformedURLException:未知协议:redis

如何解析这个连接字符串以将其传递给 redis 的构造函数?

How do I parse this connection string to pass it to redis's constructor?

附言我不允许选择其他 redis 客户端.

P.S. I am not allowed to pick other redis client.

推荐答案

使用 URI

String connStr = "redis://redistogo:[e-mail]:10333/";
URI uri = new URI(connStr);
System.out.println(uri.getScheme());
System.out.println(uri.getHost());
System.out.println(uri.getPort());

String connStrWithoutPort = connStr.replace(":" + uri.getPort(), "");
System.out.println(connStrWithoutPort);

// or a more safe version (because the user info part might contain a
// password that matches the port, e.g. 
// redis://redistogo:[e-mail]:10333/
StringBuilder withoutPort = new StringBuilder();

withoutPort.append(uri.getScheme());
withoutPort.append("://");
String userInfo = uri.getUserInfo();
if (userInfo != null) {
    withoutPort.append(userInfo);
    withoutPort.append("@");
}
withoutPort.append(uri.getHost());

String withoutPortString = withoutPort.toString();

这篇关于使用端口解析连接字符串的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！