删除一部分Hexa消息以获得好消息

Question

我尝试使用此方法将Hex of char字符串转换为String：

public String HexToString(String inputString){
    StringBuilder output = new StringBuilder();
    for (int i = 0; i < inputString.length(); i+=2) {
        String str = inputString.substring(i, i+2);
        output.append((char)Integer.parseInt(str, 16));
    }
    return output.toString();
}

输入是：

  

“4d442020000000020000000000000008ffffffff000000000000022200 0001b54d514852463220 20000000000000000141 4d5120434d504c4c3333 2020202020d75db05811 51d02000000000000000 00000000000000000000 00000000000000000000 00202020202020202020 20202020202020202020 20202020202020202020 20202020202020202020 20202020202020202043 20202020202020202020 4d504c4c333320202020 20000000000000000000 00000000020202020202 02020202020202020202 02020202020202020202 02020202020200000001 c7765626c6f6 ....”

此方法有效，但我的消息包含奇怪的字符的问题。 转换后，我在标题中收到了这个字符：“μMQHRF2”

问题是如何删除此标题？当消息在Hexa上或转换后我应该这样做吗？以及如何从字符串中删除此字符？

Answer 1

您可以使用apache commons库。这是链接

https://commons.apache.org/proper/commons-codec/apidocs/org/apache/commons/codec/binary/Hex.html