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2010-06-01T05:06:48Z

1 версия

в 17:44, 31 мая 2010

2010-05-31T17:44:27Z

Новая страница

== Japanese Hello World Servlet ==



<source lang="java">
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Locale;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class JapaneseHelloWorldServlet extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException,
ServletException {
response.setContentType("text/html");
response.setLocale(Locale.JAPANESE);
PrintWriter out = response.getWriter();
out.println("<FONT SIZE=+2>");
out.println("\u4eca\u65e5\u306f\u4e16\u754c");
out.println("</FONT>");
}
}</source>



== Locale Information Servlet ==



<source lang="java">
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Enumeration;
import java.util.Locale;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class LocaleInformationServlet extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException,
ServletException {
response.setContentType("text/html");
PrintWriter out = response.getWriter();
Locale userPreferredLocale = request.getLocale();
Enumeration userPreferredLocales = request.getLocales();
out.println("Preferred Locale: " + userPreferredLocale.toString());
out.println("");
out.print("Preferred Locales: ");
while (userPreferredLocales.hasMoreElements()) {
userPreferredLocale = (Locale) userPreferredLocales.nextElement();
out.print(userPreferredLocale.toString() + ", ");
}
out.println();
out.println("");
}
}</source>



== Locale Session Servlet ==



<source lang="java">
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
public class LocaleSessionServlet extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException,
ServletException {
HttpSession userSession = request.getSession();
if (userSession.isNew()) {
userSession.setAttribute("userLocale", request.getLocale());
}
}
}</source>



== Servlet I18N: Page Header ==



<source lang="java">
import java.io.*;
import java.text.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class MyServlet extends HttpServlet {
public void doGet(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
res.setContentType("text/plain; charset=Shift_JIS");
PrintWriter out = res.getWriter();
res.setHeader("Content-Language", "ja");
Locale locale = new Locale("ja", "");
DateFormat full = DateFormat.getDateTimeInstance(DateFormat.LONG,
DateFormat.LONG,
locale);
out.println("In Japanese:");
out.println("\u4eca\u65e5\u306f\u4e16\u754c"); // Hello World
out.println(full.format(new Date()));
}
}</source>



== Servlet I18N: Read From File ==



<source lang="java">
import java.io.*;
import java.text.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class MyServlet extends HttpServlet {
public void doGet(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
res.setContentType("text/plain; charset=Shift_JIS");
PrintWriter out = res.getWriter();
res.setHeader("Content-Language", "ja");
Locale locale = new Locale("ja", "");
DateFormat full = DateFormat.getDateTimeInstance(DateFormat.LONG,
DateFormat.LONG,
locale);
out.println("In Japanese:");
try {
FileInputStream fis =
new FileInputStream(req.getRealPath("/HelloWorld.ISO-2022-JP"));
InputStreamReader isr = new InputStreamReader(fis, "ISO-2022-JP");
BufferedReader reader = new BufferedReader(isr);
String line = null;
while ((line = reader.readLine()) != null) {
out.println(line);
}
}
catch (FileNotFoundException e) {
e.printStackTrace();
}
out.println(full.format(new Date()));
}
}</source>



== Servlet Spanish ==



<source lang="java">
import java.io.*;
import java.text.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class MyServlet extends HttpServlet {
public void doGet(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
res.setContentType("text/plain");
PrintWriter out = res.getWriter();
res.setHeader("Content-Language", "es");
Locale locale = new Locale("es", "");
DateFormat fmt = DateFormat.getDateTimeInstance(DateFormat.LONG,
DateFormat.LONG,
locale);
fmt.setTimeZone(TimeZone.getDefault());
out.println("En Espa\u00f1ol:");
out.println("\u00a1Hola Mundo!");
out.println(fmt.format(new Date()));
}
}</source>



== Servlet Unicode ==



<source lang="java">
import java.io.*;
import java.text.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class MyServlet extends HttpServlet {
public void doGet(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
Locale locale;
DateFormat full;
try {
res.setContentType("text/plain; charset=UTF-8");
//PrintWriter out = res.getWriter();
PrintWriter out = new PrintWriter(
new OutputStreamWriter(res.getOutputStream(), "UTF8"), true);
locale = new Locale("en", "US");
full = DateFormat.getDateTimeInstance(DateFormat.LONG,
DateFormat.LONG,
locale);
out.println("In English appropriate for the US:");
out.println("Hello World!");
out.println(full.format(new Date()));
out.println();
locale = new Locale("es", "");
full = DateFormat.getDateTimeInstance(DateFormat.LONG,
DateFormat.LONG,
locale);
out.println("En Espa\u00f1ol:");
out.println("\u00a1Hola Mundo!");
out.println(full.format(new Date()));
out.println();
locale = new Locale("ja", "");
full = DateFormat.getDateTimeInstance(DateFormat.LONG,
DateFormat.LONG,
locale);
out.println("In Japanese:");
out.println("\u4eca\u65e5\u306f\u4e16\u754c");
out.println(full.format(new Date()));
out.println();
locale = new Locale("zh", "");
full = DateFormat.getDateTimeInstance(DateFormat.LONG,
DateFormat.LONG,
locale);
out.println("In Chinese:");
out.println("\u4f60\u597d\u4e16\u754c");
out.println(full.format(new Date()));
out.println();
locale = new Locale("ko", "");
full = DateFormat.getDateTimeInstance(DateFormat.LONG,
DateFormat.LONG,
locale);
out.println("In Korean:");
out.println("\uc548\ub155\ud558\uc138\uc694\uc138\uacc4");
out.println(full.format(new Date()));
out.println();
locale = new Locale("ru", "");
full = DateFormat.getDateTimeInstance(DateFormat.LONG,
DateFormat.LONG,
locale);
out.println("In Russian (Cyrillic):");
out.print("\u0417\u0434\u0440\u0430\u0432\u0441\u0442");
out.println("\u0432\u0443\u0439, \u041c\u0438\u0440");
out.println(full.format(new Date()));
out.println();
}
catch (Exception e) {
e.printStackTrace();
}
}
}</source>



== Servlet Unicode Escape String ==



<source lang="java">
import java.io.*;
import java.text.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class MyServlet extends HttpServlet {
public void doGet(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
try {
res.setContentType("text/plain; charset=UTF-8");
PrintWriter out = res.getWriter();
String charset = req.getParameter("charset");
String text = req.getParameter("text");
BufferedReader reader = new BufferedReader(
new InputStreamReader(new StringBufferInputStream(text), charset));
text = reader.readLine();
out.println("Received charset: " + charset);
out.println("Received text: " + text);
out.println("Received text (escaped): " + toUnicodeEscapeString(text));
}
catch (Exception e) {
e.printStackTrace();
}
}
public void doPost(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
doGet(req, res);
}
private static String toUnicodeEscapeString(String str) {
// Modeled after the code in java.util.Properties.save()
StringBuffer buf = new StringBuffer();
int len = str.length();
char ch;
for (int i = 0; i < len; i++) {
ch = str.charAt(i);
switch (ch) {
case "\\": buf.append("\\\\"); break;
case "\t": buf.append("\\t"); break;
case "\n": buf.append("\\n"); break;
case "\r": buf.append("\\r"); break;

default:
if (ch >= " " && ch <= 127) {
buf.append(ch);
}
else {
buf.append("\\");
buf.append("u");
buf.append(toHex((ch >> 12) & 0xF));
buf.append(toHex((ch >> 8) & 0xF));
buf.append(toHex((ch >> 4) & 0xF));
buf.append(toHex((ch >> 0) & 0xF));
}
}
}
return buf.toString();
}
private static char toHex(int nibble) {
return hexDigit[(nibble & 0xF)];
}
private static char[] hexDigit = {
"0","1","2","3","4","5","6","7","8","9","a","b","c","d","e","f"
};
}</source>



== Servlet UTF8 Page ==



<source lang="java">
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class MyServlet extends HttpServlet {
PrintWriter out = null;
public void doGet(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
try {
// Get a reader to read the incoming data
BufferedReader reader = req.getReader();
// Get a writer to write the data in UTF-8
res.setContentType("text/html; charset=UTF-8");
//PrintWriter out = res.getWriter();
out = new PrintWriter(
new OutputStreamWriter(res.getOutputStream(), "UTF8"), true);
char[] buf = new char[4 * 1024]; // 4Kchar buffer
int len;
while ((len = reader.read(buf, 0, buf.length)) != -1) {
out.write(buf, 0, len);
}
out.flush();
}
catch (Exception e) {
out.println("Problem filtering page to UTF-8");
getServletContext().log(e, "Problem filtering page to UTF-8");
}
out.println("Done");
}
public void doPost(HttpServletRequest req, HttpServletResponse res)
throws ServletException, IOException {
doGet(req, res);
}
}</source>



== Set content type to charset=ISO-/td> ==



<source lang="java">
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class UnknownEncodingServlet extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException,
ServletException {
response.setContentType("text/html; charset=ISO-8850-1");
PrintWriter out = response.getWriter();
}
}</source>

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Admin: 1 версия

в 17:44, 31 мая 2010