@Override
	public void write(final char[] value, final int offset, final int length) {
		if (value != null) {
			builder.append(value, offset, length);
		}
	}
Writes a portion of a character array to the {@link StringBuilder}.
@param value The value to write
@param offset The index of the first character
@param length The number of characters to write
spring-cloud-alibaba-starters/spring-cloud-alibaba-commons/src/main/java/com/alibaba/cloud/commons/io/StringBuilderWriter.java