Question

在使用Java修改或格式化其他源文本文件后，需要帮助来编写文本文件内容。假设我在源文本文件（text1.txt）中的文本内容之下。我已经搜索了堆栈溢出流量的任何可能的重复但我无法找到。所有现有的堆栈溢出问题都与如何只读取和写入文本/文件有关。

******** Total_Load_Start应用的总负载（用户）：8Total_Load_End ***************** Avg_Start 8个请求的平均响应时间（毫秒）：2837 msAvg_End ****************** Success_start加载成功率％ 8个请求：100.0％Success_end ****************** CPUPeak_Start 加载8个请求期间的Cpu峰值％使用率：1 ％CPUPeak_End ****************** Pass_Start总成功加载8个请求时的响应：8 Pass_End ****************** Fail_Start期间失败的响应总数 8个请求的加载：0％Fail_End *********

现在我需要以下面的格式读取和写入目标或输出文本文件text2.txt：

Total_Load_Start The total load applied(Users)     : 8 

Avg_Start The Avg Response time(ms) for 8 requests : 2837 ms

Success_start The Success % for load of 8 requests  : 100.0 % 

CPUPeak_Start The Cpu peak % usage during the load of 8 requests      :1 %

Pass_StartThe total succesful responses during the load of 8 requests      :8 

Fail_Start The total failed responses during the load of 8 requests      :0 %

任何帮助都将不胜感激。

我试过这样的话：

    static void modifyFile(String filePath, String oldString, String newString){
       File fileToBeModified = new File(filePath);
       String oldContent = "*";
       BufferedReader reader = null;
       FileWriter writer = null;

    try{
        reader = new BufferedReader(new FileReader(fileToBeModified));
        String line = reader.readLine();
        String [] separado = line.split("\\*");

        while (separado != null) {
            oldContent = oldContent + line + System.lineSeparator();
            line = reader.readLine();
        }

        String newContent = oldContent.replaceAll(oldString, newString);
        writer = new FileWriter(fileToBeModified);
        writer.write(newContent);
        reader.close();
        writer.close();
    }
    catch (IOException e)
    {
        e.printStackTrace();
    }
}
public static void main(String[] args)  {
    TextFileReadWrite.modifyFile("C:\\Users\\raman\\Documents\\TestLoad_Final_Result.txt", "*", "");
    System.out.println("done");
}

Answer 1

Path originalPath = Paths.get("file1.txt");
    //Read the file content and add each line in list
    List<String> orginalContentLines = Files.readAllLines(originalPath);

    //Combine all lines to one string
    String originalContent = orginalContentLines.stream().collect(Collectors.joining("\r\n"));

    //Format the content by replacing * with new line
    String newContent = originalContent.replaceAll("\\*+", "\r\n");

    //Create the new file 
    Path newPath = Paths.get("file2.txt");
    Files.createFile(newPath);

    //Write to new file
    Files.write(newPath, newContent.getBytes());

在使用Java格式化文本文件内容后，如何读取文本文件内容并写入另一个文本文件？

1 个答案: