package org.xzd.tools;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Properties;
public class StringUtils {
/**
* å—符串转化为key-valueå½¢å¼
*
* @param str
* @return
* @throws IOException
*/
public static Properties str2Properties(String str) throws IOException {
Properties prop = new Properties();
InputStream is = null;
try {
is = new ByteArrayInputStream(str.getBytes());
prop.load(is);
} finally {
if (is != null) {
try {
is.close();
} catch (IOException e) {
}
}
}
return prop;
}
/**
* å—符串是å¦ä¸ºç©º
*
* @param s
* @return
*/
public static boolean isEmpty(String s) {
return s == null || s.trim().isEmpty();
}
public static List strToList(String str, String split) {
List list = new ArrayList();
if (!StringUtils.isEmpty(str)) {
// 去除括å·
if (str.contains("(") && str.contains(")")) {
int start = str.indexOf("(");
int end = str.indexOf(")");
str = str.substring(start + 1, end);
}
String[] ss = str.split(split);
for (String s : ss) {
list.add(s);
}
}
return list;
}
public static String makeIpString(String[] ips, int count) {
StringBuilder builder = new StringBuilder();
builder.append("(");
for (int i = 0; i < count; i++) {
builder.append(ips[i]);
if (i == count - 1) {
builder.append(")");
} else {
builder.append(" ");
}
}
return builder.toString();
}
public static String join(String[] array) {
StringBuffer sb = new StringBuffer();
int length = array.length;
for (int i = 0; i < length; i++) {
sb.append(array[i]).append(",");
}
return sb.substring(0, sb.length() - 1).toString();
}
/**
* å°†listçš„stirngå…ƒç´ è½¬ä¸ºä»¥é€—å·ç›¸è¿žæŽ¥çš„å—符串
*
* @author 26820
* @param list
* å…ƒç´ å¦‚[1,2,3,4,5]
* @return 1,2,3,4,5,6
*/
public static String listToSTring(List list) {
if (list == null || list.size() == 0) {
return "";
}
String result = "";
for (String str : list) {
if (!StringUtils.isEmpty(str.trim()))
result += (str + ",");
}
if (result.length() == 0) {
return "";
}
return result.substring(0, result.length() - 1);
}
/**
* å°†strs2ä¸çš„å…ƒç´ ä»Žstrs1ä¸ç§»é™¤
*
* @author 26820
* @param strs1
* 如1,2,3,4
* @param strs2
* 如2,4
* @return 返回1,3
*/
public static String removeString(String strs1, String strs2) {
String[] strArr1 = strs1.split(",");
String[] strArr2 = strs2.split(",");
List arrayList1 = new ArrayList(1);
List arrayList2 = new ArrayList(1);
Collections.addAll(arrayList1, strArr1);
Collections.addAll(arrayList2, strArr2);
for (String e : arrayList2) {
if (!StringUtils.isEmpty(e))
arrayList1.remove(e);
}
return listToSTring(arrayList1);
}
/**
* å—符数组转list
*
* @param strArray
* @return
*/
public static List asList(String[] strArray) {
List list = new ArrayList();
if (strArray != null) {
for (String s : strArray)
list.add(s);
}
return list;
}
/**
* 如果å—符串为空返回空å—符串, å¦åˆ™è¿”回原å—符串
*
* @param str
* @return
*/
public static String getEmptyStringIfIsEmpty(String str) {
if (isEmpty(str))
return "";
return str;
}
}