优化一下这段代码 private void initConnectInfo() { byte_connectDDSTitle = connectDDSTitle.getBytes(); connectMessage = DDSUtil.geTopicInfo(); byte[] byte_connectMessage = connectMessage.getBytes(); int connectLength = byte_connectMessage.length; connectSubLength = 4+connectLength; connectLength = 4+ connectSubLength; byte_connectLength = intToBytes(connectLength); byte_connectSubLength = intToBytes(connectSubLength); byte_connectMessageId = intToBytes(connectMessageId); byte_connect = DDSUtil.mergeBytes(byte_connectDDSTitle,byte_connectLength,byte_connectSubLength,byte_connectMessageId,byte_connectMessage); Connect = connectDDSTitle+ new String(byte_connectLength)+new String(byte_connectSubLength)+new String(byte_connectMessageId)+connectMessage; System.out.println("客户端连接消息====="+Connect); }
时间: 2023-12-10 11:42:58 浏览: 63
ComTest-VS2010串口读写代码.rar_VS2010_VS2010 串口_VS2010 串口_asy2010. co
可以考虑使用 StringBuilder 来优化字符串拼接,同时也可以将一些重复计算的部分提取出来,如下所示:
```
private void initConnectInfo() {
byte_connectDDSTitle = connectDDSTitle.getBytes();
connectMessage = DDSUtil.geTopicInfo();
byte[] byte_connectMessage = connectMessage.getBytes();
int connectMessageLength = byte_connectMessage.length;
connectSubLength = 4 + connectMessageLength;
byte_connectSubLength = intToBytes(connectSubLength);
byte_connectMessageId = intToBytes(connectMessageId);
byte_connectLength = intToBytes(connectSubLength + 4);
byte_connect = DDSUtil.mergeBytes(
byte_connectDDSTitle,
byte_connectLength,
byte_connectSubLength,
byte_connectMessageId,
byte_connectMessage
);
StringBuilder sb = new StringBuilder();
sb.append(connectDDSTitle)
.append(new String(byte_connectLength))
.append(new String(byte_connectSubLength))
.append(new String(byte_connectMessageId))
.append(connectMessage);
Connect = sb.toString();
System.out.println("客户端连接消息=====" + Connect);
}
```
其中,connectLength 这个变量被删掉了,因为它的计算结果已经不再使用到了。另外,byte_connectLength 和 byte_connectSubLength 的计算顺序调整了一下,因为 byte_connectLength 的计算需要用到 byte_connectSubLength。最后,使用 StringBuilder 来拼接字符串,避免了多次创建和销毁字符串对象的开销。
阅读全文