替换一个规则字符串中指定的几个字符串

package com.uml.extent;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

public class ReplaceChar {
public static void main(String[] args) {
String str = "1001,2002,1003,1004";
System.out.println(repalceChar(str, new String[]{"1001","2002"}));
}

/**
* 替换一个规则字符串中几个特定的字符串
* @param tar
* @param repalce
* @return
*/
public static String repalceChar(String tar,String[] repalce) {
if(tar==null||tar.equals("")) {
return "";
}
String result = "";
String[] target = tar.split(",");
List<String> targetArr = Arrays.asList(target);
List<String> targetArr1 = new ArrayList<String>();
for(String subTarge:targetArr) {
boolean exits = false;
for(String str:repalce) {
if(subTarge.equals(str)){
exits = true;
}
}
if(!exits) {
targetArr1.add(subTarge);
}
}
for(String str:targetArr1) {
result+=str+",";
}
return result.substring(0, result.length()-1);
}
}