HtmlUtils.java
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package com.framework.util;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
public class HtmlUtils {
public static String getWebContent(String url) throws MalformedURLException, IOException {
String sCurrentLine = "";
StringBuffer result = new StringBuffer();
InputStream urlStream;
URL weburl = new URL(url);
HttpURLConnection connection = (HttpURLConnection) weburl.openConnection();
connection.connect();
urlStream = connection.getInputStream();
BufferedReader lReader = new BufferedReader(new InputStreamReader(urlStream));
while ((sCurrentLine = lReader.readLine()) != null) {
result.append(sCurrentLine);
}
return result.toString();
}
public static String clearHtmlCode(String htmlCode) {
htmlCode = htmlCode.replaceAll("\t", "").replaceAll("\r\n", "").replaceAll("\n", "");
htmlCode = htmlCode.replaceAll("<SCRIPT(.[^(</SCRIPT>)]*)</SCRIPT>", "");
htmlCode = htmlCode.replaceAll("<script(.[^(</script>)]*)</script>", "");
htmlCode = htmlCode.replaceAll("<(.[^>]*)>", "");
return htmlCode;
}
public static String filter(String value) {
if (value == null || value.length() == 0) {
return value;
}
StringBuffer result = null;
String filtered = null;
for (int i = 0; i < value.length(); i++) {
filtered = null;
switch (value.charAt(i)) {
case 60: // '<'
filtered = "<";
break;
case 62: // '>'
filtered = ">";
break;
case 38: // '&'
filtered = "&";
break;
case 34: // '"'
filtered = """;
break;
case 39: // '\''
filtered = "'";
break;
}
if (result == null) {
if (filtered != null) {
result = new StringBuffer(value.length() + 50);
if (i > 0) {
result.append(value.substring(0, i));
}
result.append(filtered);
}
} else if (filtered == null) {
result.append(value.charAt(i));
} else {
result.append(filtered);
}
}
return result != null ? result.toString() : value;
}
}