7.16 Day22---MYSQL (Dao mode encapsulates JDBC)

Table of Contents

Dao mode encapsulates JDBC:

Use database connection pooling technology:

Handwritten connection pool by yourself:

useThree-party library:

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Dao mode encapsulates JDBC:

Use database connection pooling technology:

Handwritten connection pool by yourself:

Use third party library:

DBCP has bugs and cannot be used

C3P0 is too slow

Druid Alibaba's, it is said to be very useful

BoneCP

HiKariCP is said to be the fastest

Properties property file

1. It is specially used to write configuration parameters in the software

2. The format is attribute name=attribute value