springboot2升级到springboot3过程相关修改记录

<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>2.7.18</version>
		<relativePath /> <!-- lookup parent from repository -->
	</parent>

<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>3.4.0</version>
		<relativePath /> <!-- lookup parent from repository -->
	</parent>

<build>
		<plugins>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-compiler-plugin</artifactId>
				<configuration>
					<source>1.8</source>
					<target>1.8</target>
				</configuration>
			</plugin>
		</plugins>
	</build>

<build>
		<plugins>
			<plugin>
				<groupId>org.apache.maven.plugins</groupId>
				<artifactId>maven-compiler-plugin</artifactId>
				<configuration>
					<source>17</source>
					<target>17</target>
				</configuration>
			</plugin>
		</plugins>
	</build>

<!--jakarta.servlet start -->
		<dependency>
			<groupId>jakarta.servlet</groupId>
			<artifactId>jakarta.servlet-api</artifactId>
		</dependency>
		<!--jakarta.servlet end -->

<!-- mybatis-plus start-->
		<dependency>
		    <groupId>com.baomidou</groupId>
		    <artifactId>mybatis-plus-spring-boot3-starter</artifactId>
		    <version>3.5.5</version>
		</dependency>
		<!-- mybatis-plus end-->

<swagger3.version>2.7.0</swagger3.version>

<!-- swagger3 start -->
		<dependency>
      <groupId>org.springdoc</groupId>
      <artifactId>springdoc-openapi-starter-webmvc-ui</artifactId>
      <version>${swagger3.version}</version>
    </dependency>
    <!-- swagger3 end -->

http://localhost:8080/test/swagger-ui/index.html
http://localhost:8080/test/v3/api-docs

springdoc:
  swagger-ui:
    enabled: true
  api-docs:
    enabled: true

import com.alibaba.druid.support.jakarta.WebStatFilter;
import jakarta.servlet.annotation.WebFilter;
import jakarta.servlet.annotation.WebInitParam;
//注意不要忘记在 SpringBootSampleApplication.java 上添加 @ServletComponentScan 注解，不然就是404了。
@WebFilter(
		filterName = "druidWebStatFilter", urlPatterns = "/*", 
		initParams = { @WebInitParam(name = "exclusions", value = "weburi.json,.html,.js,.gif,.jpg,.png,.css,.ico,/druid/*") // 忽略资源
})
public class DruidStatFilter extends WebStatFilter {
}

import com.alibaba.druid.support.jakarta.StatViewServlet;
import jakarta.servlet.annotation.WebInitParam;
import jakarta.servlet.annotation.WebServlet;
//注意不要忘记在 SpringBootSampleApplication.java 上添加 @ServletComponentScan 注解，不然就是404了。
@WebServlet(urlPatterns="/druid/*",  
    initParams={  
         @WebInitParam(name="allow",value=""),// IP白名单(没有配置或者为空，则允许所有访问)  
         @WebInitParam(name="deny",value=""),// IP黑名单 (存在共同时，deny优先于allow)  
         @WebInitParam(name="loginUsername",value="admin"),// 用户名  
         @WebInitParam(name="loginPassword",value="123456"),// 密码  
         @WebInitParam(name="resetEnable",value="true")// 启用HTML页面上的“Reset All”功能  
})  
public class DruidStatViewServlet extends StatViewServlet {  
    private static final long serialVersionUID = -2688872071445249539L;  
}