Java常用字符串格式化操作類StringFormat

package com.wesley.framework.commen;

import java.util.Collection;
import org.apache.commons.collections.CollectionUtils;
import org.apache.commons.lang.ArrayUtils;
import org.apache.commons.lang.xwork.StringUtils;
public class StringFormat {

/**
 * 模仿C#格式化字符串
 * 
 * @param str
 * @param args
 * @return
 */
public static String format(String str, String... args) {
    for (int i = 0; i < args.length; i++) {
        str = str.replaceFirst("\\{" + i + "\\}", args[i]);
    }
    return str;
}

/**
 * 安全鏈接字符串
 * 
 * @param strs
 * @return
 */
public static String softLink(String... strs) {
    StringBuffer sb = new StringBuffer();
    for (String s : strs) {
        sb.append(StringUtils.isEmpty(s) ? "" : s);
    }
    return sb.toString();
}

/**
 * 安全去首位鏈接字符串
 * 
 * @param strs
 * @return
 */
public static String softTrimLink(String... strs) {
    StringBuffer sb = new StringBuffer();
    for (String s : strs) {
        sb.append(StringUtils.trimToEmpty(s));
    }
    return sb.toString();
}

/**
 * 安全toString
 * 
 * @param str
 * @return
 */
public static String toString(Object str) {
    if (ObjectUtil.isEmpty(str))
        return null;
    return str.toString();
}

/**
 * 通過","鏈接List
 * 
 * @param strlist
 * @return
 */
public static String formatByComma(Collection<String> strlist) {
    if (CollectionUtils.isEmpty(strlist))
        return "";
    String[] strs = new String[strlist.size()];
    strlist.toArray(strs);
    return StringFormat.formatByComma(strs);
}

/**
 * 將數組輕而易舉的轉換成用逗號分隔的字符串
 * 
 * @param strs
 * @return
 */
public static String formatByComma(String... strs) {
    return StringFormat.formatByComma(true, strs);
}

/**
 * 將數組輕而易舉的轉換成用逗號分隔的字符串
 * 
 * @param strs
 * @return
 */
public static String formatByComma(boolean filterNull, String... strs) {
    if (!filterNull)
        ArrayUtils.removeElement(strs, null);
    String str = ArrayUtils.toString(strs);
    return StringUtils.substring(str, 1, str.length() - 1);
}

/**
 * 在數組每個元素前后追加數據
 * 
 * @param array
 * @param head
 * @param end
 * @return
 */
public static String[] formatEcho(String head, String end, String... array) {
    if (ObjectUtil.isEmpty(array))
        return null;
    for (int i = 0; i < array.length; i++) {
        if (ObjectUtil.isEmpty(array[i]))
            continue;
        array[i] = head + array[i] + end;
    }
    return array;
}

/**
 * 把用","分割的字符串，轉換成數組
 * 
 * @param str
 * @return
 */
public static String[] splitByComma(String str) {
    return StringUtils.split(str, ",");
}

public static void main(String[] args) {
    String[] stringArray = { "Red", "Orange", "Blue", "Brown", "Red" };
    System.out.print(StringFormat.formatByComma(stringArray));
}


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