SpringBoot配置全局异常处理器异常返回格式

Question

SpringBoot项目，返回数据为xml格式，正常请求能返回xml，但是配置全局捕获异常后却返回json，demo如下

Entity：

@XmlRootElement
@Builder
@Data
public class User {

    private String name;
    private String sex;
}

Controller：

@RestController
public class TestController {

    @PostMapping(value = "test", produces = "application/xml;charset=UTF-8")
    public User test() {
        if (true) {
            throw new CustomizeException("9999", "测试异常");
        }
        return null;
    }

    @PostMapping(value = "test1", produces = "application/xml;charset=UTF-8")
    public User test1() {
        return User.builder().name("Cch").sex("male").build();
    }
}

自定义异常类：

@Getter
@Setter
public class CustomizeException extends RuntimeException {

    private String code;
    private String msg;

    public CustomizeException(String code, String msg) {
        this.code = code;
        this.msg = msg;
    }
}

异常处理器：

@RestControllerAdvice
public class MyExceptionHandler {

    @ExceptionHandler(CustomizeException.class)
    public User testExceprion(CustomizeException e) {
        return User.builder().name("Sxr").sex("female").build();
    }
}

pom：

 <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <dependency>
            <groupId>com.fasterxml.jackson.dataformat</groupId>
            <artifactId>jackson-dataformat-xml</artifactId>
        </dependency>

        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>

测试结果如下：

捕获异常以后返回类型就变成json

Answer 1

如果非要确保postman上返回也要是xml格式，你可以自己封装响应内容。

 @ExceptionHandler(value = {CustomizeException.class})
    protected ResponseEntity testExceprion(CustomizeException ex) {
        User user = User.builder().name("Sxr").sex("female").build();
        return ResponseEntity.status(HttpStatus.BAD_REQUEST)
                .contentType(MediaType.APPLICATION_XML)
                .body(user);
    }

结果测试了没问题：