Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/**
 * Copyright (c) 2012-2014 http://www.eryansky.com
 * <p/>
 * Licensed under the Apache License, Version 2.0 (the "License");
 */

import java.util.Iterator;
import java.util.Map;

public class Main {
    /**
     * parameters separator *
     */
    public static final String PARAMETERS_SEPARATOR = "&";
    /**
     * equal sign *
     */
    public static final String EQUAL_SIGN = "=";

    /**
     * join paras
     *
     * @param parasMap paras map, key is para name, value is para value
     * @return join key and value with {@link #EQUAL_SIGN}, join keys with {@link #PARAMETERS_SEPARATOR}
     */
    public static String joinParas(Map<String, String> parasMap) {
        if (parasMap == null || parasMap.size() == 0) {
            return null;
        }

        StringBuilder paras = new StringBuilder();
        Iterator<Map.Entry<String, String>> ite = parasMap.entrySet().iterator();
        while (ite.hasNext()) {
            Map.Entry<String, String> entry = (Map.Entry<String, String>) ite.next();
            paras.append(entry.getKey()).append(EQUAL_SIGN).append(entry.getValue());
            if (ite.hasNext()) {
                paras.append(PARAMETERS_SEPARATOR);
            }
        }
        return paras.toString();
    }
}