实现Spring Boot配置MySQL集群的步骤
甘特图
gantt
title Spring Boot配置MySQL集群步骤
section 设计
完成设计 :done, des1, 2022-01-01, 1d
section 开发
编写代码 :active, dev1, 2022-01-02, 3d
测试代码 :active, dev2, after dev1, 2d
section 部署
部署到集群 :active, deploy1, after dev2, 2d
关系图
erDiagram
DATABASE {
"MySQL Master" -- "MySQL Slave1"
"MySQL Master" -- "MySQL Slave2"
"MySQL Slave1" -- "MySQL Slave2"
}
步骤
| 步骤 | 描述 |
|---|---|
| 1 | 配置MySQL Master和MySQL Slave |
| 2 | 配置Spring Boot连接MySQL集群 |
| 3 | 测试连接及读写分离功能 |
代码示例
步骤1：配置MySQL Master和MySQL Slave
// 配置MySQL Master
spring.datasource.master.url=jdbc:mysql://master_ip:3306/dbname
spring.datasource.master.username=root
spring.datasource.master.password=password
// 配置MySQL Slave1
spring.datasource.slave1.url=jdbc:mysql://slave1_ip:3306/dbname
spring.datasource.slave1.username=root
spring.datasource.slave1.password=password
// 配置MySQL Slave2
spring.datasource.slave2.url=jdbc:mysql://slave2_ip:3306/dbname
spring.datasource.slave2.username=root
spring.datasource.slave2.password=password
步骤2：配置Spring Boot连接MySQL集群
// 配置数据源
@Configuration
public class DataSourceConfig {
@Primary
@Bean(name = "masterDataSource")
@ConfigurationProperties(prefix = "spring.datasource.master")
public DataSource masterDataSource() {
return DataSourceBuilder.create().build();
}
@Bean(name = "slave1DataSource")
@ConfigurationProperties(prefix = "spring.datasource.slave1")
public DataSource slave1DataSource() {
return DataSourceBuilder.create().build();
}
@Bean(name = "slave2DataSource")
@ConfigurationProperties(prefix = "spring.datasource.slave2")
public DataSource slave2DataSource() {
return DataSourceBuilder.create().build();
}
@Bean
public DataSource routingDataSource(@Qualifier("masterDataSource") DataSource masterDataSource,
@Qualifier("slave1DataSource") DataSource slave1DataSource,
@Qualifier("slave2DataSource") DataSource slave2DataSource) {
ReplicationRoutingDataSource routingDataSource = new ReplicationRoutingDataSource();
Map<Object, Object> dataSourceMap = new HashMap<>();
dataSourceMap.put(DataSourceType.MASTER, masterDataSource);
dataSourceMap.put(DataSourceType.SLAVE1, slave1DataSource);
dataSourceMap.put(DataSourceType.SLAVE2, slave2DataSource);
routingDataSource.setTargetDataSources(dataSourceMap);
routingDataSource.setDefaultTargetDataSource(masterDataSource);
return routingDataSource;
}
@Bean
public PlatformTransactionManager transactionManager(@Qualifier("masterDataSource") DataSource masterDataSource) {
return new DataSourceTransactionManager(masterDataSource);
}
}
步骤3：测试连接及读写分离功能
// 测试连接
@Autowired
private JdbcTemplate jdbcTemplate;
public void testConnection() {
List<Map<String, Object>> results = jdbcTemplate.queryForList("SELECT * FROM table_name");
for (Map<String, Object> result : results) {
System.out.println(result.toString());
}
}
// 测试读写分离功能
@WriteDataSource
public void writeData() {
jdbcTemplate.update("INSERT INTO table_name (column1, column2) VALUES (?, ?)", value1, value2);
}
@ReadDataSource
public void readData() {
List<Map<String, Object>> results = jdbcTemplate.queryForList("SELECT * FROM table_name");
for (Map<String, Object> result : results) {
System.out.println(result.toString());
}
}
通过以上步骤，你就可以成功配置Spring Boot连接MySQL集群并实现读写分离功能了。祝你顺利！
