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Question

这是我的java程序提取的日志文件的一部分，但我对这部分日志不感兴趣

2017-05-30 23:11:33,673 INFO [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.AuthenticationProviderImpl - Invoking logout agent [accountName=rene1 remoteAddress=STEDGE/172.16.8.3]
2017-05-30 23:11:33,682 INFO [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.AuthenticationProviderImpl - Logout agent success [accountName=rene1 remoteAddress=STEDGE/172.16.8.3]
2017-05-30 23:11:33,819 INFO [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.KeyboardInteractiveAuthentication - SSH: Sent SSH_MSG_USERAUTH_INFO_REQUEST (Password Authentication): 
2017-05-30 23:11:33,871 INFO [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.AuthenticationProviderImpl - User login attempt has been made from address /172.16.8.1:54626
2017-05-30 23:11:32,042 INFO [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.AuthenticationProviderImpl - Invoking config agent [accountName=rene1 remoteAddress=gateway/172.16.8.1]
2017-05-30 23:11:32,072 INFO [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.AuthenticationProviderImpl - Config agent success [accountName=rene1 remoteAddress=gateway/172.16.8.1]
2017-05-30 23:11:31,072 INFO [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.AuthenticationProviderImpl - Invoking config agent [accountName=rene1 remoteAddress=gateway/172.16.8.1]
2017-05-30 23:11:31,090 INFO [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.AuthenticationProviderImpl - Config agent success [accountName=rene1 remoteAddress=gateway/172.16.8.1]
2017-05-30 23:11:31,091 INFO [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.AuthenticationProviderImpl - Invoking auth agent [accountName=rene1 remoteAddress=STEDGE/172.16.8.3]
2017-05-30 23:11:31,095 INFO [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.AuthenticationProviderImpl - SSH: Failed login attempt on [172.16.8.1]. Username: "rene1".
2017-05-30 23:11:18,673 INFO [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.AuthenticationProviderImpl - Invoking logout agent [accountName=rene1 remoteAddress=STEDGE/172.16.8.3]
2017-05-30 23:11:18,682 INFO [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.AuthenticationProviderImpl - Logout agent success [accountName=rene1 remoteAddress=STEDGE/172.16.8.3]
2017-05-30 23:11:15,819 INFO [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.KeyboardInteractiveAuthentication - SSH: Sent SSH_MSG_USERAUTH_INFO_REQUEST (Password Authentication): 
2017-05-30 23:11:15,871 INFO [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.AuthenticationProviderImpl - User login attempt has been made from address /172.16.8.1:54626
2017-05-30 23:11:14,042 INFO [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.AuthenticationProviderImpl - Invoking config agent [accountName=rene1 remoteAddress=gateway/172.16.8.1]
2017-05-30 23:11:14,072 INFO [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.AuthenticationProviderImpl - Config agent success [accountName=rene1 remoteAddress=gateway/172.16.8.1]
2017-05-30 23:11:12,072 INFO [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.AuthenticationProviderImpl - Invoking config agent [accountName=rene1 remoteAddress=gateway/172.16.8.1]
2017-05-30 23:11:11,090 INFO [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.AuthenticationProviderImpl - Config agent success [accountName=rene1 remoteAddress=gateway/172.16.8.1]
2017-05-30 23:11:10,091 INFO [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.AuthenticationProviderImpl - Invoking auth agent [accountName=rene1 remoteAddress=STEDGE/172.16.8.3]
2017-05-30 23:11:09,095 INFO [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.AuthenticationProviderImpl - SSH: Failed login attempt on [172.16.8.1]. Username: "rene1".

我只想在这些日志行中使用IP

2017-05-30 23:11:32,072 INFO [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.AuthenticationProviderImpl - Invoking config agent [accountName=rene1 remoteAddress=gateway/172.16.8.1]
2017-05-30 23:11:32,072 INFO [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.AuthenticationProviderImpl - Config agent success [accountName=rene1 remoteAddress=gateway/172.16.8.1]
2017-05-30 23:11:31,072 INFO [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.AuthenticationProviderImpl - Invoking config agent [accountName=rene1 remoteAddress=gateway/172.16.8.1]
2017-05-30 23:11:31,090 INFO [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.AuthenticationProviderImpl - Config agent success [accountName=rene1 remoteAddress=gateway/172.16.8.1]

我能想到的是使用正则表达式过滤掉这些行中的IP，因为IP地址属于最终用户IP地址，所以只有一个IP就足够了。所以，我已经为正则表达式设置了自己的模式，但它没有按预期工作。以下是我的模式

(?<=accountName=rene1 remoteAddress=gateway/)[\\d.]+

This是我和我的模式一起玩的测试网站，这里的任何人都可以建议最合适的模式来过滤掉我想要的结果吗？

Answer 1

您可以将这些日志消息放入列表中

并使用谓词过滤

示例：

with tf.name_scope('accuracy'):
with tf.name_scope('correct_prediction'):
    prediction = tf.argmax(result_tensor, 1)
    correct_prediction = tf.equal(
        prediction, tf.argmax(ground_truth_tensor, 1))
with tf.name_scope('accuracy'):
    evaluation_step = tf.reduce_mean(tf.cast(correct_prediction, tf.float32))

编辑：

只获取IP地址使用UnaryOperator

List<String> myList = Arrays.asList("172.16.8.3",
            "Invoking logout agent [accountName=rene1 remoteAddress=STEDGE/255.16.8.3]",
            "2017-05-30 23:11:33,673 INFO [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.AuthenticationProviderImpl - Invoking logout agent [accountName=rene1 remoteAddress=STEDGE/172.16.8.3]",
            "2017-05-30 23:11:33,682 INFO [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.AuthenticationProviderImpl - Logout agent success [accountName=rene1 remoteAddress=STEDGE/172.16.8.3]",
            "2017-05-30 23:11:33,819 INFO [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.KeyboardInteractiveAuthentication - SSH: Sent SSH_MSG_USERAUTH_INFO_REQUEST (Password Authentication): ",
            "2017-05-30 23:11:33,871 INFO [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.AuthenticationProviderImpl - User login attempt has been made from address /172.16.8.1:54626",
            "2017-05-30 23:11:32,042 INFO [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.AuthenticationProviderImpl - Invoking config agent [accountName=rene1 remoteAddress=gateway/172.16.8.1]",
            "2017-05-30 23:11:32,072 INFO [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.AuthenticationProviderImpl - Config agent success [accountName=rene1 remoteAddress=gateway/172.16.8.1]",
            "2017-05-30 23:11:31,072 INFO [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.AuthenticationProviderImpl - Invoking config agent [accountName=rene1 remoteAddress=gateway/172.16.8.1]",
            "2017-05-30 23:11:31,090 INFO [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.AuthenticationProviderImpl - Config agent success [accountName=rene1 remoteAddress=gateway/172.16.8.1]",
            "2017-05-30 23:11:31,091 INFO [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.AuthenticationProviderImpl - Invoking auth agent [accountName=rene1 remoteAddress=STEDGE/172.16.8.3]",
            "2017-05-30 23:11:31,095 INFO [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.AuthenticationProviderImpl - SSH: Failed login attempt on [172.16.8.1]. Username: \"rene1\".",
            "2017-05-30 23:11:18,673 INFO [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.AuthenticationProviderImpl - Invoking logout agent [accountName=rene1 remoteAddress=STEDGE/172.16.8.3]");

Predicate<String> predicate = t -> {
        return t.indexOf("remoteAddress=gateway") != -1;
};
List<String> myFilteredList = myList.stream().filter(predicate).collect(Collectors.toList());
System.out.println(myFilteredList);

最终输出：

[172.16.8.1,172.16.8.1,172.16.8.1,172.16.8.1]

Answer 2

这样做怎么样？

    String str = "2017-05-30 23:11:32,072 INFO [SSHD-TRANSFER-1] com.tumbleweed.st.server.sshd.AuthenticationProviderImpl - Invoking config agent [accountName=rene1 remoteAddress=gateway/172.16.8.1]";
    String pat = "remoteAddress=gateway/";
    int index = str.indexOf(pat);
    if(index != -1) {
        System.out.println(str.substring(index + pat.length(), str.length() - 1));
    }

试试这个：

BufferedReader br3 = new BufferedReader(new InputStreamReader(p3.getInputStream()));
    String line3;
    while((line3 = br3.readLine()) != null)
    {
      //  System.out.println(line3);  
      str2 = line3;
      String pat2 = "remoteAddress=gateway/";
      int index1 = str2.indexOf(pat2);
      if(index1 != -1)
      {
        System.out.println(str2.substring(index1+pat2.length(),str2.length()-1));
      }
    }

使用字符串字符过滤掉ip地址日志文件

2 个答案:

编辑：