打开系统文件最大连接数

package normal;

/*
* Copyright (c) 2004 David Flanagan.  All rights reserved.
* This code is from the book Java Examples in a Nutshell, 3nd Edition.
* It is provided AS-IS, WITHOUT ANY WARRANTY either expressed or implied.
* You may study, use, and modify it for any non-commercial purpose,
* including teaching and use in open-source projects.
* You may distribute it non-commercially as long as you retain this notice.
* For a commercial use license, or to purchase the book,
* please visit http://www.davidflanagan.com/javaexamples3. */
import java.io.*;

/**
* A simple FilterReader that strips HTML tags (or anything between
* pairs of angle brackets) out of a stream of characters.
**/
public class RemoveHTMLReader extends FilterReader {
/** A trivial constructor.  Just initialize our superclass */
public RemoveHTMLReader(Reader in) { super(in); }

boolean intag = false;    // Used to remember whether we are "inside" a tag

/**
* This is the implementation of the no-op read() method of FilterReader.
* It calls in.read() to get a buffer full of characters, then strips
* out the HTML tags.  (in is a protected field of the superclass).
**/
public int read(char[] buf, int from, int len) throws IOException {
int numchars = 0;        // how many characters have been read
// Loop, because we might read a bunch of characters, then strip them
// all out, leaving us with zero characters to return.
while (numchars == 0) {
numchars = in.read(buf, from, len); // Read characters
if (numchars == -1) return -1;      // Check for EOF and handle it.

// Loop through the characters we read, stripping out HTML tags.
// Characters not in tags are copied over previous tags
int last = from;                    // Index of last non-HTML char
for(int i = from; i < from + numchars; i++) {
if (!intag) {                      // If not in an HTML tag
if (buf[i] == '<') intag = true; // check for tag start
else buf[last++] = buf[i];       // and copy the character
}
else if (buf[i] == '>') intag = false;  // check for end of tag
}
numchars = last - from; // Figure out how many characters remain
}                           // And if it is more than zero characters
return numchars;            // Then return that number.
}

/**
* This is another no-op read() method we have to implement.  We
* implement it in terms of the method above.  Our superclass implements
* the remaining read() methods in terms of these two.
**/
public int read() throws IOException {
char[] buf = new char[1];
int result = read(buf, 0, 1);
if (result == -1) return -1;
else return (int)buf[0];
}

/** This class defines a main() method to test the RemoveHTMLReader */
public static class Test {
/** The test program: read a text file, strip HTML, print to console */
public static void main(String[] args) {
try {
//   if (args.length != 1)
//    throw new IllegalArgumentException("Wrong number of args");
// Create a stream to read from the file and strip tags from it
BufferedReader in = new BufferedReader(
new RemoveHTMLReader(new FileReader("d:/城院公告.htm")));
// Read line by line, printing lines to the console
String line;
while((line = in.readLine()) != null)
System.out.println(line);
in.close();  // Close the stream.

}
catch(Exception e) {
System.err.println(e);
System.err.println("Usage: java RemoveHTMLReader$Test" +
" <filename>");
}
}
}
}