Loading text into a single String [duplicate]
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How to create a Java String from the contents of a file
I'm stuck with the problem of loading a whole file(which is a .html file) to a single String.
I'm trying to print the contents which between <body> and </body>. however; when i run my code, it cannot write anything in to input file. i believe the problem is there is no <body> or </body> tags in my first line, which means the indexOf() method will return a -1, therefore the whole problem cannot be achieve. Someone told me should load the whole .html which contains a lot of lines to a single string, i believe he means to load in one line. I DO NOT KNOW HOW TO DO IT...
here is my code:
PrintWriter pr;
try{
c = new Scanner(f);
pr = new PrintWriter(new FileOutputStream(o));
while (c.hasNextLine()){
String text = c.nextLine();
String index = "<body>";
String index2 = "</body>";
int i1 = text.indexOf(开发者_如何学运维index);
int i2 = text.indexOf(index2);
text = text.substring(i1+6,i2);
System.out.println("here it is");
pr.println(text);
System.out.println("you did !!!");
pr.flush();}
}catch(Exception e){}
}
Ok. Here is a small sample to help you start.
This will work will a simple HTML page.
But for complex pages (with embedded CSS etc) you will have to figure how to find the start/end of body.
FileInputStream fin = new FileInputStream("theFile.html");
byte[] data = new byte[fin.available()];
fin.read(data);
String htmlFile = new String(data);
int start = htmlFile.indexOf("<body>");
if(start != -1){
int end = html.indexOf("</body");
if(end != -1){
System.out.println("Body is: html.substring(start + 6, end));
}
}
加载中,请稍侯......
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