Spring Boot启动类是用于定义和配置Spring Boot应用程序入口点的Java类。它通常包含@SpringBootApplication注解，自动配置Spring容器并启动应用。
```java
package com;
import java.util.Properties;
import com.github.pagehelper.PageHelper;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.loadbalancer.LoadBalanced;
import org.springframework.context.annotation.Bean;
import org.springframework.web.client.RestTemplate;
@SpringBootApplication
public class OfficeServiceApplication {
public static void main(String[] args) {
SpringApplication.run(OfficeServiceApplication.class, args);
}
@Bean
@LoadBalanced
public RestTemplate getRestTemplate() {
return new RestTemplate();
}
// 配置mybatis的分页插件pageHelper
@Bean
public PageHelper pageHelper() {
PageHelper pageHelper = new PageHelper();
Properties properties = new Properties();
properties.setProperty(offsetAsPageNum, true);
properties.setProperty(rowBoundsWithCount, true);
properties.setProperty(reasonable, true);
properties.setProperty(dialect, mysql); // 配置mysql数据库的方言
pageHelper.setProperties(properties);
return pageHelper;
}
}
```
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