java 在java中读取html文件
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read the html file in java
提问by adesh
In java i have to read multiple files to search some text . Files are containing large html data so its difficult to read the content of the html file with the help of following code . Is any direct method to fetch the content of a file using java . I am using the following code but its making my application slow suggest me the best alternate of it
在 java 中，我必须读取多个文件来搜索一些文本。文件包含大量 html 数据，因此很难借助以下代码读取 html 文件的内容。是使用 java 获取文件内容的任何直接方法。我正在使用以下代码，但它使我的应用程序变慢建议我最好的替代方法
try{
FileReader fr=new FileReader("path of the html file");
BufferedReader br= new BufferedReader(fr);
String content="";
while((s=br.readLine())!=null)
{
content=content+s;
}
System.out.println("content is"+content);
}
catch(Exception ex)
{
}
回答by Peter
String concatenation is always slow when done in a loop
在循环中完成字符串连接总是很慢
You will need to change it to using a StringbBuilder and giving that StringBuilder a decent starting size.
您需要将其更改为使用 StringbBuilder 并为该 StringBuilder 提供合适的起始大小。
FileReader fr=new FileReader("path of the html file");
BufferedReader br= new BufferedReader(fr);
StringBuilder content=new StringBuilder(1024);
while((s=br.readLine())!=null)
{
content.append(s);
}
