Java URL Encode encodeForUrl(final String s)

Description

encode For Url

License

Open Source License

Declaration

public static String encodeForUrl(final String s) 

Method Source Code

//package com.java2s;
// Licensed under the Apache License, Version 2.0 (the "License");

import java.io.UnsupportedEncodingException;

public class Main {
    public static String encodeForUrl(final String s) {
        final StringBuilder result = new StringBuilder();
        byte[] bytes;
        try {//from  w  w  w .j  a va 2  s .co m
            bytes = s.getBytes("UTF-8");
        } catch (UnsupportedEncodingException e) {
            throw new RuntimeException("Missing UTF-8 support?!", e);
        }
        for (byte aByte : bytes) {
            if (isUnreservedUrlCharacter((char) aByte)) {
                result.append((char) aByte);
            } else if (aByte == ' ') {
                result.append('+');
            } else {
                result.append(String.format("%%%02X", aByte));
            }
        }
        return result.toString();
    }

    private static boolean isUnreservedUrlCharacter(final char c) {
        return isLatinLetter(c) || isDigit(c) || c == '-' || c == '_' || c == '.' || c == '~';
    }

    private static boolean isLatinLetter(final char c) {
        return c >= 'A' && c <= 'Z' || c >= 'a' && c <= 'z';
    }

    private static boolean isDigit(final char c) {
        return c >= '0' && c <= '9';
    }
}

Related

1. encode(String value)
2. encode(String value)
3. encode(String value, String charset)
4. encode(String value, String encoding)
5. encodeArray(final String[] val)
6. encodeSrcUrl(String fullUri)
7. encodeStringURL(String str)
8. encodeUri(String url)
9. encodeURIComponent(String input)