Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import java.io.ByteArrayOutputStream;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;

import java.util.HashMap;
import java.util.Map;

public class Main {

    public static String customrequest(String url, HashMap<String, String> params, String method) {
        try {

            URL postUrl = new URL(url);
            HttpURLConnection conn = (HttpURLConnection) postUrl.openConnection();
            conn.setDoOutput(true);
            conn.setDoInput(true);
            conn.setConnectTimeout(5 * 1000);

            conn.setRequestMethod(method);
            conn.setUseCaches(false);
            conn.setInstanceFollowRedirects(true);
            conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
            conn.setRequestProperty("User-Agent", "Mozilla/4.0 (compatible; MSIE 5.0; Windows XP; DigExt)");

            conn.connect();
            OutputStream out = conn.getOutputStream();
            StringBuilder sb = new StringBuilder();
            if (null != params) {
                int i = params.size();
                for (Map.Entry<String, String> entry : params.entrySet()) {
                    if (i == 1) {
                        sb.append(entry.getKey() + "=" + entry.getValue());
                    } else {
                        sb.append(entry.getKey() + "=" + entry.getValue() + "&");
                    }

                    i--;
                }
            }
            String content = sb.toString();
            out.write(content.getBytes("UTF-8"));
            out.flush();
            out.close();
            InputStream inStream = conn.getInputStream();
            String result = inputStream2String(inStream);
            conn.disconnect();
            return result;
        } catch (Exception e) {
            // TODO: handle exception
        }
        return null;
    }

    static public byte[] getBytes(File file) throws IOException {
        InputStream ios = null;
        ByteArrayOutputStream ous = null;
        try {
            byte[] buffer = new byte[4096];
            ous = new ByteArrayOutputStream();
            ios = new FileInputStream(file);
            int read = 0;
            while ((read = ios.read(buffer)) != -1) {
                ous.write(buffer, 0, read);
            }
        } finally {
            try {
                if (ous != null)
                    ous.close();
            } catch (IOException e) {
            }

            try {
                if (ios != null)
                    ios.close();
            } catch (IOException e) {
            }
        }

        return ous.toByteArray();
    }

    public static String inputStream2String(InputStream in) throws IOException {
        StringBuffer out = new StringBuffer();
        byte[] b = new byte[4096];
        for (int n; (n = in.read(b)) != -1;) {
            out.append(new String(b, 0, n));
        }
        return out.toString();
    }
}