Java database Programming, Java XML parsing technology

JDBC Overview

JDBC is the database programming API provided in Java

Curd: Database additions and deletions changed

Link string: String url = "MySQL:/localhost:3306/jdbc/";

Connection links

DriverManager: Drive Manager

Execute: Send

Close () Frees resources

Executeupdte: Delete and change the operation

Next () Live results next

ResultSet interface: Query result set

XML overview

An XPath path expression

Document: Refers to the entire XML document

Attlist Property

XML Extensible Markup Language

XML is a set of defined semantic tagging rules that divide a document into parts and mark them.

The XML declares that the document organizes the data according to the XML document specification.

XML Comment Document: <!-This is a note-

Java database Programming, Java XML parsing technology