我在运行程序时遇到了麻烦，该程序每次运行时都会创建html模板

我正在用java编写一个程序，该程序每次运行时都会创建一个HTML模板。它读取由四个标题和段落组成的输入生物文本文件，每个文件一行。它采用txt并将标题和段落存储到并行数组中。然后我将数组写入一个HTML文件。问题是，当我运行它时，没有输入到文件中，它也表示读取器从未关闭。这是我的程序和输出。谢谢你的任何建议。我在运行程序时遇到了麻烦，该程序每次运行时都会创建html模板

package edu.txstate.cs3320.qwt1; 

import java.util.ArrayList; 
import java.io.BufferedReader; 
import java.io.FileReader; 
import java.io.FileWriter; 
import java.io.IOException; 
import java.io.BufferedWriter; 


public class bio2 { 

    private static final String OUTPUT_FILE = "./iofiles/bio.html"; 
    private static final String INPUT_FILE = "./iofiles/bio.txt"; 
    private static final String TITLE = "My LIfe"; 

    private static BufferedWriter writer = null; 

    private static ArrayList <String> headings = new ArrayList <>(); 
    private static ArrayList <String> paragraphs = new ArrayList <>(); 

    //methods before main 

    private static void initialize (String fileName) { 
     try { 
      writer = new BufferedWriter(new FileWriter(fileName)); 
     }catch(IOException e) { 
      e.printStackTrace(); 
     } 
    } 

    private static void readParagraphs(String inputFileName) { 
     final int numberOfParagraphs = 4; 

     try { 
     BufferedReader reader = new BufferedReader(new FileReader(inputFileName)); 

     for(int i = 0; i<numberOfParagraphs;i++) { 
      String headerLine = reader.readLine(); 
      if(headerLine != null) headings.add(headerLine); 
      String paragraphLine = reader.readLine(); 
      if(paragraphLine != null) paragraphs.add(paragraphLine); 

     } 
     }catch (IOException e) { 
      e.printStackTrace(); 
     } 

    } 
    private static void writeHTML(String anHTMLString) { 

     try { 
      writer.write(anHTMLString); 
      writer.flush(); 
     }catch(IOException e) { 
      e.printStackTrace(); 
     } 
    } 

    private static void writeParagraphs() { 
     for(int i=0; i<headings.size();i++) { 
      writeHTML(HTMLTags.H1_START + headings.get(i)+HTMLTags.H1_END); 
      writeHTML(HTMLTags.PARAGRAPH_START); 
      writeHTML(paragraphs.get(i)); 
      writeHTML(HTMLTags.PARAGRAPH_END); 
     } 
    } 

    private static void writeBio(String title) { 
     writeHTMLOpening(title); 
     writeParagraphs(); 
     writeHTMLClosing(); 
    } 


    private static void writeHTMLOpening(String title) { 
     writeHTML(HTMLTags.HTML_HEADER_START); 
     writeHTML(HTMLTags.TITLE_START + title + HTMLTags.TITLE_END); 
     writeHTML(HTMLTags.HTML_HEADER_END); 
     writeHTML(HTMLTags.BODY_START); 
    } 

    private static void writeHTMLClosing() { 
     writeHTML(HTMLTags.BODY_END); 
     writeHTML(HTMLTags.HTML_END); 
    } 



    public static void main(String[] args) { 
     initialize(OUTPUT_FILE); 
     writeBio(TITLE); 
     readParagraphs(INPUT_FILE); 
     System.out.println("completed"); 

    } 
}

<!DOCTYPE html> 
 
<html> 
 
<head> 
 
<meta charset="ISO-8859-1"> 
 
<title>My LIfe</title><style> 
 
h1 {text-align:center;} 
 
</style> 
 
</head> 
 
<body></body></html>

这里是我的bio.txt输入文件

[h1] Who Am I? 
My name is Billy. I am a senior CS major. 
[h1] What are my interests? 
I would like to develop my skillset in software and web development and possibly start a career in it. 
[h1] Why am I taking this class? 
I am taking this class because I'd like to enhance my web development skills. 
[h1] What is my five year plan? 
My five year plan is to graduate with my CS major and earn a great job that I enjoy.

来源

2017-09-12 Quinton Thompson

你是什么意思的问题是，当我运行它没有输入到文件？你的意思是把数组保存（写入）到一个html文件中，因为在java中的输入意味着从文件中读取并输出意味着从文件中写入 – abcOfJavaAndCPP

我建议只使用新的非阻塞I/O文件，路径和OutputStream，InputStream – abcOfJavaAndCPP

如何使用http://freemarker.org/类模板引擎而不是手动创建HTML。问题虽然没有给你清楚的理解你的用法。 – dwij

只是一个小校正方法执行顺序。您需要先阅读并初始化您的标题和段落，然后将其写入html文件。

public static void main(String[] args) { 
    initialize(OUTPUT_FILE); 
    readParagraphs(INPUT_FILE); 
    writeBio(TITLE); 
    System.out.println("completed"); 
}

来源

2017-09-12 01:51:45

谢谢！这个小小的改正正是我所需要的！ –

最好关闭你的'reader'和'writer'。像这样'try {...} catch（IOException ex）{...} finally {reader.close}'。 – Matt

我在运行程序时遇到了麻烦，该程序每次运行时都会创建html模板

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