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2024年6月10日发(作者：ssh输入密码后access denied)

mybatis plus saveorupdatebatch用法 -回复

MyBatis-Plus SaveOrUpdateBatch Usage

Introduction:

MyBatis-Plus is an open-source persistence framework that

combines the power of MyBatis with added features and ease of

use. One of the essential features provided by MyBatis-Plus is the

SaveOrUpdateBatch method, which allows the user to insert or

update multiple records in the database at once. In this article, we

will explore the step-by-step process of using SaveOrUpdateBatch

in MyBatis-Plus and understand its benefits and limitations.

Step 1: Setting up the project

Before we dive into the details of using SaveOrUpdateBatch, we

need to set up a project with MyBatis-Plus. We can start by creating

a new Maven project and adding the necessary dependencies for

MyBatis-Plus and the respective database driver (e.g., MySQL).

Step 2: Defining the entity classes and mapper interfaces

Next, we need to define the entity classes that represent the

database tables and the corresponding mapper interfaces.

MyBatis-Plus follows the convention-over-configuration approach,

which means that we can generate the SQL queries dynamically

based on the entity fields and their annotations.

Step 3: Configuring the database connection

To establish a connection with the database, we need to set up the

connection details in the ties or

file. This includes specifying the database URL, username, password,

and other relevant configurations.

Step 4: Creating the data access methods

With the entity classes and mapper interfaces in place, we can now

define the data access methods using MyBatis-Plus annotations.

For the SaveOrUpdateBatch functionality, we need to update or

insert multiple records at once. To achieve this, we can define a

method in the mapper interface that takes a list of entity objects as

a parameter.


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