Connection Parameters

Hint

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jdbc-elastic supports configuring various parameters in the JDBC URL to control connection behavior, authentication, timeout settings, and more.

JDBC URL Format

jdbc:dbvisitor:elastic://host:port?param1=value1&param2=value2

Basic Parameters

Parameter	Description	Default
username	Authentication username	None
password	Authentication password	None

Network & Timeout

Parameter	Description	Default
connectTimeout	Connection timeout (milliseconds)	-
socketTimeout	Socket read timeout (milliseconds)	-

Behavior Control

Parameter	Description	Default
indexRefresh	Whether to automatically refresh the index after write operations	false

Pre-Read Configuration

These parameters control pre-read behavior for large files or large volumes of data. When pre-read is enabled, the query result set will display all fields in the document, rather than only the _ID and _DOC fields.

Parameter	Description	Default
preRead	Whether to enable pre-read	true
preReadThreshold	Pre-read threshold (bytes); triggers file caching when exceeded	5MB
preReadMaxFileSize	Maximum pre-read file size	20MB
preReadCacheDir	Pre-read cache directory	System temp directory