Description:

Currently, some values ​​in NettyMessage.java are hard-coded, such as the magic number 0xBADC0FFE, which needs to be constantized.

• ClusterConstants.java: Various prefixes and constants can be extracted as configuration
• NettyMessage.java: The magic number 0xBADC0FFE needs to be constantized
• StringLiteralUtil.java: The multiplier array {1000, 100, 10, 1} needs to be constantized.
• LocalClient.java: The JSON template string needs to be extracted.