Java URL Connection urlToString(String url)

Description

url To String

License

Apache License

Declaration

public static String urlToString(String url) throws IOException 

Method Source Code

//package com.java2s;
//License from project: Apache License 

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;

public class Main {
    public static final String CHARSET_UTF8 = "UTF-8";
    private static final String CHARSET_MARKER = "charset=";

    public static String urlToString(String url) throws IOException {
        URLConnection conn = new URL(url).openConnection();
        InputStream is = conn.getInputStream();
        String contentType = conn.getContentType();
        if (contentType != null) {
            contentType = contentType.toLowerCase();
            int i = contentType.indexOf(CHARSET_MARKER);
            if (i > -1) {
                String charsetName = contentType.substring(i + CHARSET_MARKER.length());
                return toString(is, charsetName);
            }/*ww w. j a  v a  2  s  .com*/
        }
        return toString(is, CHARSET_UTF8);
    }

    public static String toString(InputStream input, String charset) throws IOException {
        if (charset != null) {
            try (InputStreamReader reader = new InputStreamReader(input, charset)) {
                StringBuilder sb = new StringBuilder(1024 * 32);
                char[] buf = new char[1024];
                int n;
                while ((n = reader.read(buf)) != -1) {
                    sb.append(buf, 0, n);
                }
                return sb.toString();
            }
        } else {
            try (InputStreamReader reader = new InputStreamReader(input)) {
                StringBuilder sb = new StringBuilder(1024 * 32);
                char[] buf = new char[1024];
                int n;
                while ((n = reader.read(buf)) != -1) {
                    sb.append(buf, 0, n);
                }
                return sb.toString();
            }
        }
    }
}

Related

1. urlExists(String urlString)
2. URLExists(URL url, StringBuffer errorMsg)
3. urlifyMap(Long nid, double latitude, double longitude)
4. urlToHtm(String word, String findurl, String path)
5. urlToReader(URL url)
6. urlToText(@Nonnull String url)