使用Java将日志文件解析为打印行

我正在尝试解析一个已转换为字符串的文本文件。 我试图解析的文本（每次生成时都会更改），但总是有一个或多个部分（错误、警告、合规性、说明性）这些行以“错误”、“警告”、“合规性”或“说明性”开头

以下是一个文本示例：

Errors - This section contains errors
The cake is a lie 
All things have endings
Twinkies are back
Warnings - This contains warnings
Show me the money
Metric > Imperial
food for thought
derp derp derp
Compliance- This contains compliance issues
Space is disease and danger wrapped in darkness and silence.
Khaaaaaaaaaaan!
Instructional - Contains Instructional Issues
I'm a doctor, not an escalator.

我需要测试每一行

Psudo代码：

boolean E = false;
boolean W = false;
boolean C = false;
boolean I = false;
boolean Skip5 = false;

For each line in the stringFromTextFile{
Skip5 = false;
if the line starts with "Errors"
    E = true;
    W = false;
    C = false;
    I = false;
    Skip5 = true;//start over with next line
if the line starts with "Warnings"
    E = false;
    W = true;
    C = false;
    I = false;
    Skip5 = true;//start over with next line
if the line starts with "Compliance"
    E = false;
    W = false;
    C = true;
    I = false;
    Skip5 = true;//start over with next line
if the line starts with "Instructional" 
    E = false;
    W = false;
    C = false;
    I = true;
    Skip5 = true;//start over with next line 

//Step 5
if(!Skip5){
if(I)
    println "Instructional " + currentLine;
if(E)
    println "Error " + currentLine;
if(W)
    println "Warning " + currentLine;
if(C)
    println "Compliance " + currentLine;
}
//End Step 5
}//end for each

我试图从上述文本中获得的结果示例：

Error The cake is a lie 
Error All things have endings
Error Twinkies are back
Warning Show me the money
Warning Metric > Imperial
Warning food for thought
Warning derp derp derp
Compliance Space is disease and danger wrapped in darkness and silence.
Compliance Khaaaaaaaaaaan!
Instructional I'm a doctor, not an escalator.

---

谢谢你的帮助！请让我知道，如果我在找什么不清楚。我在解析字符串方面没有太多经验，也没有得到任何帮助

这是一个Ruby版本，您可以轻松地适应Java：

String parsedText = output.toString();

        boolean E = false;
        boolean W = false;
        boolean C = false;
        boolean I = false;
        boolean Skip5 = false;
        Scanner scanner = new Scanner(parsedText);
        while (scanner.hasNextLine()) {
          String line = scanner.nextLine();
          Skip5 = false;
          if (line.startsWith("Errors")){
              E = true;
              W = false;
              C = false;
              I = false;
              Skip5 = true;//start over with next line
          }
          if(line.startsWith("Warnings")){
              E = false;
              W = true;
              C = false;
              I = false;
              Skip5 = true;//start over with next line
          }
          if(line.startsWith("Compliance")){
              E = false;
              W = false;
              C = true;
              I = false;
              Skip5 = true;//start over with next line
          }
          if(line.startsWith("Instructional")){ 
              E = false;
              W = false;
              C = false;
              I = true;
              Skip5 = true;//start over with next line 
          }
          //Step 5
          if(!Skip5){
              if(I){
                  System.out.println("Instructional " + line.toString()); 
              }
              if(E){
                  System.out.println("Error " + line.toString());
              }
              if(W){
                  System.out.println("Warning " + line.toString());
              }
              if(C){
                  System.out.println("Compliance " + line.toString());
              }
          }


        }

current_prefix = ""

ARGF.each do |line|
  regex = /^(Errors|Warnings|Compliance|Instructional)\s*-/
  m = regex.match(line)
  if m then
    new_prefix = case m[1]
                 when 'Errors' then 'Error'
                 when 'Warnings' then 'Warning'
                 when 'Compliance' then 'Compliance'
                 when 'Instructional' then 'Instructional'
                 end
    current_prefix = new_prefix
  else
    puts "#{current_prefix} - #{line}"
  end
end

示例调用

$ ruby myconfig-parser.rb sample.txt
Error - The cake is a lie 
Error - All things have endings
Error - Twinkies are back
Warning - Show me the money
Warning - Metric > Imperial
Warning - food for thought
Warning - derp derp derp
Compliance - Space is disease and danger wrapped in darkness and silence.
Compliance - Khaaaaaaaaaaan!
Instructional - I'm a doctor, not an escalator.

---

我希望这会有所帮助。

您尝试过正则表达式吗？我使用reg-ex时遇到的问题是，每一行都不是以例如“Errors”开头的。它交替出现。你能给我举个例子说明你的想法吗？所以你可以简单地用正则表达式：^（（Error | Warning | Compliance）。+）你可以放任何你想找的词。问题是每个词都会产生不同的结果，就像上面的示例文本一样。明白了。张贴我所做的事情