dubbo rest模块内置的swagger会改变spring boot默认行为

[klzami]

• [ x ] I have searched the issues of this repository and believe that this is not a duplicate.
• [ x ] I have checked the FAQ of this repository and believe that this is not a duplicate.

Environment

• Dubbo version: 2.7.7
• Operating System version: Mac Catalina 10.15.7 (19H2)
• Java version: 1.8.0_231
• SpringBoot: 1.5.9.RELEASE

Steps to reproduce this issue

1. 基于spring boot 1.5.x搭建demo项目并编写测试controller

2. 访问该测试controller，默认返回json格式的response

3. 引用以下包：

       <dependency>
           <groupId>org.apache.dubbo</groupId>
           <artifactId>dubbo-spring-boot-starter</artifactId>
           <version>2.7.7</version>
       </dependency>
       <dependency>
           <groupId>io.springfox</groupId>
           <artifactId>springfox-swagger2</artifactId>
           <version>2.9.2</version>
       </dependency>
       <dependency>
           <groupId>io.springfox</groupId>
           <artifactId>springfox-swagger-ui</artifactId>
           <version>2.9.2</version>
       </dependency>
       <dependency>
           <groupId>io.swagger</groupId>
           <artifactId>swagger-jersey2-jaxrs</artifactId>
           <version>1.5.9</version>
       </dependency>

4. 重启demo项目并再次访问测试controller，这时会返回xml格式的response

Expected Result

引用swagger不改变spring boot的默认http message converter组织方式，不影响各接口的response格式。

Actual Result

引用swagger后改变了spring boot的默认http message converter组织方式，进而改变了各接口的response格式。

Trouble Shooting

1. dubbo rest集成了swagger，用到了相关的类，比如：io.swagger.jaxrs.listing.BaseApiListingResource。
2. 因此必须引用 swagger-jersey2-jaxrs 包。
3. swagger-jersey2-jaxrs 包引用了 jackson-dataformat-xml包。
4. jackson-dataformat-xml内部的 XmlMapper类会改变SpringBoot的HttpMessageConverter组装过程，从而改变默认response格式。

[blindarcheology]

can you provide a recurring case for this issue. Thanks!

[CrazyHZM]

I think this is not a problem that dubbo needs to solve. You can try to specify application/json in the header and specify the http message in json format.