SpringBoot2.7升级项目到Springboot3.1踩坑指南(jdk17jdk21)_网站优化分享

您的位置：上海毫米网络优化公司 > 网站优化分享 >

文章目录

概要
国内顶级开源项目升级情况
适配SpringBoot3指南
SpringBoot3升级要点

1、jdk17变动（如javax）
2、redis修改spring.redis.host ===> spring.data.redis.host
3、SpringCloudApplication注解被删除
4、不兼容升级import java.servlet====>import jakarta.servlet
5、swagger集成弃用springfox--->springdoc不兼容升级
6、动态数据源baomidou的dynamic-datasource依赖变动
7、Spring Framework 6.0 中删除了对 Apache HttpClient 支持（RestTemplate受影响）
8、SpringBoot3.0整合RocketMQ时出现未能加载bean文件
9、springboot3默认依赖 elasticsearch从7.x升级到8.x
10、springboot 3.2 openFeign加载失败暂未解决 (3.1没问题)
11、hutool5.8-->hutool6.0升级要要点
12、Centos7使用jdk21报错

13、@Async注解报错Invalid return type for async method (only Future and void

概要

由于SpringBoot3.x全面拥抱JDK17,兼容jdk21，jdk17乃是大势所趋。这里是从SpringBoot2.7-->SpringBoot3.1踩坑指南。

提前阅读：jdk8升级JDK17避坑指南（适用于SpringBoot2.3—SpringBoot2.7升级）

国内顶级开源项目升级情况

国内顶级开源项目升级到springBoot3情况，可以作为升级SpringBoot3的风向标。仅对比国内规模使用，落地过万企业的开源项目

参考：国内顶级开源项目：芋道、ruoyi、JeecgBoot、pig、SpringBlade功能对比

评价项/项目名	yudao-cloud	Ruoyi-Cloud	RuoYi-Cloud-Plus	Dante Cloud	pig	bladex	JeecgBoot
官网	芋道yudao-cloud 开发指南	若依	plus-doc.dromara.org	Dante Cloud	pig4cloud	bladex.cn、看云-SpringBlade开发手册	JeecgBoot
源码收费	免费	免费	免费	免费	免费 + 收费(3999)	免费 + 收费(5000)	免费 + 收费(100000)
文档收费	文档收费	免费、视频收费	文档免费、视频收费	免费	免费、授权收费	文档收费	文档免费、授权收费
github	yudao-cloud	RuoYi	RuoYi-Vue-Plus	Dante Cloud	pig	SpringBlade	jeecg-boot
gitee	yudao-cloud	RuoYi	RuoYi-Vue-Plus	Dante Cloud	暂无	SpringBlade	jeecg-boot
jdk17分支	master-jdk21		RuoYi-Cloud-Plus 2.X	dante-cloud 3.1.X	pig jdk17		jeecg-boot/springboot3

适配SpringBoot3指南

参考1-微信公众号-这可能是最全的SpringBoot3新版本变化了！、
参考2-SpringBoot官网-Spring Boot 3.0 Release Notes、
参考3-微信公众号-Swagger升级指南：Swagger2与Swagger3注解差异揭秘、
参考4-微信公众号-Dante Cloud 3.2.0.0 发布，首个适配 Spring Boot 3.2版本及经验分享

参考5-JeecgBoot 文档中心-升级SpringBoot3

SpringBoot3升级要点

前提说明，建议先完成springboot2.x—>springBoot2.7.x+jdk17的适配，这里升级难度会小很多。参考：文章最前面的文章。

1、jdk17变动（如javax）

详见： jdk8升级JDK17避坑指南（适用于SpringBoot2.3—SpringBoot2.7升级）

模块化对反射的影响==>对系统类的反射增加了限制，需要打开限制增加jvm启动参数add-opens，自己写的类，可以正常使用反射。
删除sun.misc 下的包，如sun.misc.BASE64Encoder==>java.util.Base64替换
删除JAXB、soup相关==>maven仓库上面有新的maven坐标，引入新依赖即可

删除javax.annotation==>maven仓库上面有新的maven坐标，引入依赖即可

2、redis修改spring.redis.host ===> spring.data.redis.host

redis配置命令空间进行了修改，需要注意。
参考：Spring Boot3.0(九)：整合Redis

--- # redis 配置,注意springboot 3.x 有 data，2.x 没有 data
## spring.redis.host ===> spring.data.redis.host
spring:
  data:
    redis:
      host: 10.16.58.180
      port: 6379
      password: Admin123
      database: 6

3、SpringCloudApplication注解被删除

使用@SpringBootApplication替换

4、不兼容升级import java.servlet====>import jakarta.servlet

servlet捐献给社区，为了避免版权问题，修改了包名，导致不兼容.

javax.servlet===> jakarta.servlet
javax.validation ===> jakarta.validation
javax.annotation ===> jakarta.annotation
javax.mail ===> jakarta.mail

javax.websocket ==> jakarta.websocket

 
            
                jakarta.servlet
                jakarta.servlet-api
                6.0.0

5、swagger集成弃用springfox—>springdoc不兼容升级

springfox不维护了，springboot3使用springdoc,并启用openapi3.0,相关注解进行了变化。

参考：spring boot 3 整合 swagger3、

参考：Swagger升级指南：Swagger2与Swagger3注解差异揭秘、

参考：OpenApi3.0注解说明

注解作用	swagger2	swagger2示例	swagger3-openApi3.0	swagger示例	替换
用于Controller	@Api	@Api(value = "/app/child/v2", tags = "儿童档案")	@Tag	@Tag(name = "/app/child/v2", description = "儿童档案")	@Api(value = "User Management", description = "Operations pertaining to users")—>@Tag(name = "User Management", description = "Operations pertaining to users")、@Api(tags = "小程序端Core Controller")—>@Tag(description = "小程序端Core Controller")
用于Controller接口	@ApiOperation	@ApiOperation(value = "新增儿童档案绑定监护人", httpMethod = "POST", produces = "application/json")	@Operation	@Operation(summary = "新增儿童档案绑定监护人", method = "POST")	@ApiOperation(value = "根据儿童证件号码查询儿童档案", httpMethod = "POST", produces = "application/json")–>@Operation(summary = "根据儿童证件号码查询儿童档案", method = "POST")
用于Controller接口参数注解	@ApiParam或@ApiImplicitParam	@ApiParam("预约id,字段名:personApptId,默认无")	@Parameter	@Parameter(description = "预约id,字段名:personApptId,默认无", required = true)	@ApiParam(value = "追溯码形如：81900920216939751445,max=32", defaultValue = "81900920216939751445")—>@Parameter(description = "追溯码形如：81900920216939751445,max=32", example = "81900920216939751445")
参数隐藏	@ApiIgnore	@ApiIgnore HttpServletRequest request	/	/	/
实体字段	@ApiModelProperty	@ApiModelProperty("接种人员-姓名（冗）,max=32")、@ApiModelProperty(notes = "The database generated user ID")	@Schema	@Schema(description = "主键自增")	@ApiModelProperty(value—>@Schema(description、@ApiModelProperty(hidden = true)–>@Schema(hidden = true、@ApiModelProperty(value = "更新人员", example = "张三",hidden = true)—>@Schema(description = "更新人员", example = "张三",hidden = true)
实体类	@ApiModel	@ApiModel("接种人员-姓名（冗）,max=32")、@ApiModelProperty(notes = "The database generated user ID")	@Schema	@Schema (description = "根据儿童证件号码查询儿童档案")")	@ApiModel(value—>@Schema(description、@ApiModel(description —>@Schema(description

// idea正则替换01
import io.swagger.annotations.Api;
import io.swagger.v3.oas.annotations.tags.Tag;
@Api\(tags = "([^\"]+)", hidden = ([^\"]+), description = "([^\"]+)"\)
@Tag(name = "", description = "")
@Api\(value = "([^\"]+)", tags = "([^\"]+)"\)
@Tag(name = "", description = "")
@Api\(tags = "([^\"]+)", description = "([^\"]+)"\)
@Tag(name = "", description = "")
@Api\(tags = "([^\"]+)"\)
@Tag(name = "")
// idea正则替换02
import io.swagger.annotations.ApiOperation;
import io.swagger.v3.oas.annotations.Operation;
@ApiOperation\(value = "([^\"]+)", notes = "([^\"]+)", position = ([^\"]+)\)
@Operation(summary = "", description= "")
@ApiOperation\(value = "([^\"]+)", httpMethod = "([^\"]+)", produces = "([^\"]+)"\)
@Operation(summary = "", method = "")
@ApiOperation\(value = "([^\"]+)", notes = "([^\"]+)"\)
@Operation(summary = "", description = "")
@ApiOperation\(value = "([^\"]+)", httpMethod = "([^\"]+)"\)
@Operation(summary = "", method = "")
@ApiOperation\(value = "([^\"]+)"\)
@ApiOperation\("([^\"]+)"\)
@Operation(summary = "")
// idea正则替换03
import io.swagger.annotations.ApiModel;
import io.swagger.v3.oas.annotations.media.Schema;
@ApiModel\(value = "([^\"]+)"\)
@Schema(description = "")
@ApiModel\(description = "([^\"]+)"\)
@Schema(description = "")
// idea正则替换04
import io.swagger.annotations.ApiModelProperty;
'';
@ApiModelProperty\(value = "([^\"]+)", example = "([^\"]+)", required = ([^\"]+)\)
@Schema(description = "", example = "", required= )
@ApiModelProperty\(value = "([^\"]+)", example = "([^\"]+)", hidden = ([^\"]+)\)
@Schema(description = "", example = "", hidden = )
@ApiModelProperty\(value = "([^\"]+)", example = "([^\"]+)"\)
@Schema(description = "", example = "")
@ApiModelProperty\(value = "([^\"]+)", hidden = ([^\"]+)\)
@Schema(description = "", hidden = )
@ApiModelProperty\(value = "([^\"]+)"\)
@Schema(description = "")
@ApiModelProperty\(hidden = ([^\"]+)\)
@Schema(hidden = )
@ApiModelProperty\("([^\"]+)"\)
@Schema(description = "")
@ApiModelProperty\(value="([^\"]+)"\)
@Schema(description = "")
// idea正则替换05
import io.swagger.annotations.ApiParam;
import io.swagger.v3.oas.annotations.Parameter;
@ApiParam\(value = "([^\"]+)", example = "([^\"]+)", defaultValue = "([^\"]+)"\)
@Parameter(name = "", example = "", description="")
@ApiParam\(value = "([^\"]+)", defaultValue = "([^\"]+)"\)
@ApiParam\(value = "([^\"]+)", example = "([^\"]+)"\)
@Parameter(name = "", example = "")
@ApiParam\(value = "([^\"]+)"\)
@ApiParam\("([^\"]+)"\)
@Parameter(name = "")
// idea正则替换06
import springfox.documentation.annotations.ApiIgnore;
import io.swagger.v3.oas.annotations.Hidden;
@ApiIgnore
@Hidden
@ApiIgnore HttpServletResponse response
@ApiIgnore HttpServletRequest request
// idea正则替换07
@ApiImplicitParams
@Parameters
@ApiImplicitParam\(name = "([^\"]+)", value = "([^\"]+)",required = ([^\"]+), example = "([^\"]+)", paramType = "query"\)
@Parameter(name = "", description = "", required = , example = "", in = ParameterIn.QUERY)
@ApiImplicitParam\(name = "([^\"]+)", value = "([^\"]+)", required = ([^\"]+), paramType = "query"\)
@Parameter(name = "", description = "", required = true, in = ParameterIn.QUERY)
@ApiImplicitParam\(name = "([^\"]+)", value = "([^\"]+)", dataType = "([^\"]+)", required = ([^\"]+)\)
@Parameter(name = "", description = "", schema = @Schema(type = ""), required = )
@ApiImplicitParam\(name = "([^\"]+)", value = "([^\"]+)", dataType = "([^\"]+)"\)
@Parameter(name = "", description = "", schema = @Schema(type = ""))
@ApiImplicitParam\(name = "([^\"]+)", value = "([^\"]+)", paramType = "form"\)
@Parameter(name = "", description = "", in = ParameterIn.QUERY)
@ApiImplicitParam\(name = "([^\"]+)", value = "([^\"]+)", dataType = "__file", paramType = "form"\)
@Parameter(name = "", description = "", example = "__file", in = ParameterIn.QUERY)
@ApiImplicitParam\(value = "([^\"]+)"\)
@Parameter(description = "")

swaggr2实例

// Swagger2 实体类
@Getter
@Setter
@NoArgsConstructor
@ApiModel(value = "根据儿童证件号码查询儿童档案")
public class ChildGetByChildNoVo implements Serializable {
    @ApiModelProperty(value = "身份证")
    private String childNo;
    private Long personId;
}
// Swagger2 Controller
@AllArgsConstructor
@RestController
@RequestMapping("/app/child/v2")
@Api(value = "/app/child/v2", tags = "儿童档案")
public class ChildController extends BaseController 
  @ApiOperation(value = "根据监护人ID分页查询被监护人", httpMethod = "GET", produces = "application/json")
    @GetMapping("/getByPersonId")
    @ApiImplicitParam(value = "预约id")
    public AjaxResult getByPersonId(@RequestParam(value = "pageNum",required = false,defaultValue = "1") Integer pageNum,
                                  @ApiParam("预约id,字段名:personApptId,默认无") @RequestParam(value = "personApptId") Long personApptIdpersonId,
                                   @ApiIgnore HttpServletRequest request
                                   ){
        IPage page = new Page<>(pageNum,pageSize);
        IPage pageData = childService.getByPersonId(page,personId);
        TableDataInfo rspData = new TableDataInfo();
        rspData.setCode(200);
        rspData.setRows(pageData.getRecords());
        rspData.setMsg("查询成功");
        rspData.setTotal(pageData.getTotal());
        return AjaxResult.success(rspData);
    }
 
 @PostMapping("/getCode")
    @Operation(summary = "获取预约码", method = "POST")
    @ApiImplicitParam(value = "预约id")
    @ApiImplicitParams({
            @ApiImplicitParam(name = "personId", value = "用户id", paramType = "form"),
            @ApiImplicitParam(name = "apptId", value = "预约id", paramType = "form"),
            @ApiImplicitParam(name = "collectLocationId", value = "采样点id", paramType = "form"),
    })
    public String getCode(Long personId, Long apptId, Long collectLocationId) {
        return vficPersonService.generateApptQrCode(apptId, personId, collectLocationId);
    }
}

swagger3示例

6、动态数据源baomidou的dynamic-datasource依赖变动

经过测试，该条也可以不升级
参考1：baomidou dynamic-datasource、
参考2：kancloud tracy5546 dynamic-datasource



  com.baomidou
  dynamic-datasource-spring-boot-starter
  ${version}



  com.baomidou
  dynamic-datasource-spring-boot3-starter
  ${version}

7、Spring Framework 6.0 中删除了对 Apache HttpClient 支持（RestTemplate受影响）

升级到SpringBoot3发现依赖提示缺少：rg.apache.httpcomponents:httpclient，一些三方库可能依赖httpclient,就需要自己手工引入依赖。三方包如：spring-data-elasticsearch5、nacos-client 1.4.6、weixin-java-pay 4.0.0、htmlunit 3.6

参考： Spring-Boot-3.0-Migration-Guide#apache-httpclient-in-resttemplate、



    org.apache.httpcomponents
    httpclient
    4.5.14



    org.apache.httpcomponents.client5
    httpclient5
    5.3

8、SpringBoot3.0整合RocketMQ时出现未能加载bean文件

springboot2.x使用rocketmq没有问题，springboot3出现，required a bean of type ‘org.apache.rocketmq.spring.core.RocketMQTemplate’ that could not be found.

参考1：SpringBoot3.0整合RocketMQ时出现未能加载bean文件

参考2：Spring boot 3.0整合RocketMQ及不兼容的问题


            org.apache.rocketmq
            rocketmq-spring-boot-starter
            
            2.2.3

// 定义个配置类，引入也可以：
@Configuration
@Import({RocketMQAutoConfiguration.class})
public class RocketMQConfig {
}

9、springboot3默认依赖 elasticsearch从7.x升级到8.x

配置文件地址修改：spring.elasticsearch.rest.uris==>spring.elasticsearch.uris
springboot3要求elasticsearch必须升级到8.x，不能使用7.x，否则报错：缺失响应头X-Elastic-Product(Elasticsearch)
废弃：high client客户端
要求ElasticSearch必须8.x
10、springboot 3.2 openFeign加载失败暂未解决 (3.1没问题)

启动失败 feign导致 not annotated with HTTP method type (ex. GET, POST)
- https://blog.csdn.net/nailsoul/article/details/105223740
- https://www.jianshu.com/p/11b4cbc8951a
- https://juejin.cn/post/7112414513550491656
  11、hutool5.8–>hutool6.0升级要要点
  
  说明常见类，如果找不到，请看源码注释，注释上面写的有，或者全局搜索即可，无需多说。
  - ServletUtil–>JakartaServletUtil
  - hutool类变化说明: 【6.0.0】升级到6.0不兼容情况汇总，大家一起来统计维护呀、
  - 国密相关SmUtil，使用6.0x问题，参加：hutool 5.x 和 hutool 6.x crypto 国密SMUtil 模块放在一个工程中会产生冲突
    12、Centos7使用jdk21报错
    
    java: /lib64/libc.so.6: version `GLIBC_2.14’ not found (required by /usr/local/java/jdk-21.0.2+13/bin/…/lib/libjli.so)
    
    原因，Centos6缺失GLIBC_2.14，报错缺失2.14、2.15解决办法相同。
    只需要安装最高版本，自动安装低版本，比如：安装2.17.自动安装2.14
    
    参考1：version `GLIBC_2.14’ not found 问题解决
    
    参考2：解决 /lib64/libc.so.6: version `GLIBC_2.15’ not found 问题
    
    最新已经是2.38了，可以直接安装：wget --no-check-certificate https://ftp.gnu.org/gnu/glibc/glibc-2.38.tar.gz，安装前确保安装的有gcc。
    - Centos6 推荐2.17
      13、@Async注解报错Invalid return type for async method (only Future and void
      
      分析原因，springboot2.7一切正常，升级到springboot3.x@Async标记的方法，只能返还void或者Future(@Async+Future+AsyncResult返回值)
      
      参考1：spring 升级到JDK 17和Sping Boot 3后，异步仅接受Future和void作为返回类型
      参考2：Async only accepted Future and void as return type after upgrade to JDK 17 and Spring Boot 3
      
      南宁网站建设电话肇庆人才网官网网站制作公司排名深圳网站制作灵点网络口碑好芜湖网络营销公司广州建设网站多少钱

上一篇：电脑远控工具Venom Rat 毒液的测试和预防

下一篇：开源免费，快速部署。远程桌面软件Rustdesk自建服务器设置详细教程