此代码用于下载html文件的源代码
但是它跳过了一些界线,为什么会这样呢?

import java.io.IOException;
import java.net.*;
import java.util.*;
import java.io.*;

public class downloadSource {
  private URL url;
  private URLConnection con;

  // Construct the object with a new URL Object resource
  downloadSource(String url) {
    try {
      this.url = new URL(url);
    } catch (MalformedURLException e) {
      e.printStackTrace();
    }
  }

  // Returns an object instance
  public BufferedReader SourceCodeStream() throws IOException {
    return new BufferedReader(new InputStreamReader(this.url.openStream()));
  }


  public void returnSource() throws IOException, InterruptedException {
    // FIX ENTRIE SOURCE CODE IS NOT BEING DWLOADED

    // Instinate a new object by assigning it the returned object from
    // the invoked SourceCodeStream method.

    BufferedReader s = this.SourceCodeStream();
    if(s.ready()) {
      String sourceCodeLine = s.readLine();
      Vector<String> linesOfSource = new Vector();
      while(sourceCodeLine != null) {
        sourceCodeLine = s.readLine();
        linesOfSource.add(s.readLine());
      }

      Iterator lin = linesOfSource.iterator();
      while(lin.hasNext()) {
      }
    }
  }
}

最佳答案

每次迭代读取两行:

while(sourceCodeLine != null) {
      sourceCodeLine = s.readLine();

      linesOfSource.add(s.readLine());

  }


应该:

while(sourceCodeLine != null) {
      linesOfSource.add(sourceCodeLine);
      sourceCodeLine = s.readLine();
  }


第二个循环将第一行添加到linesOfSource中,该行也被跳过了:

String sourceCodeLine = s.readLine();

关于java - java.net sourceCode阅读器跳过行,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/9096861/

10-11 22:32
查看更多