Spring控制器不生成XML

Question

我有控制器

@RequestMapping(value = "/authors", produces = {"application/json","application/xml"})
public class AuthorController {

    @RequestMapping(value = "/all",method = RequestMethod.GET)
    public List<Author> findAll() {
        return authorRepository.findAll();
    }
}

pom.xml

<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-core</artifactId>
    <version>2.8.3</version>
</dependency>
<dependency>
    <groupId>com.fasterxml.jackson.dataformat</groupId>
    <artifactId>jackson-dataformat-xml</artifactId>
    <version>2.8.3</version>
</dependency>

当Accept : application/json时，响应正常当Accept : application/xml时，响应为406不可接受

有什么提示吗？

谢谢

Answer 1

假设你用@RestController注释了你的控制器，它应该可以工作。

Spring Boot你不需要向jackson-core添加依赖--它是用spring-boot-starter-web.

• You自动添加的--不需要给jackson-dataformat-xml指定版本--让

• 为你管理版本。

找到下面的最小设置来获得Jackson work的XML序列化：

pom.xml中的依赖项

<dependencies>
    <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>
</dependencies>

控制器和序列化类

@RestController
class PersonController {

    @GetMapping("/")
    Person get() {
        return new Person("John Doe", 44);
    }
}

class Person {
    private String name;
    private int age;

    public Person(final String name, final int age) {
        this.name = name;
        this.age = age;
    }

    public String getName() {
        return name;
    }

    public int getAge() {
        return age;
    }
}

XML请求：

curl -H "Accept: application/xml" http://localhost:8080/            
<Person><name>John Doe</name><age>44</age></Person>

请求JSON：

curl -H "Accept: application/json" http://localhost:8080/
{"name":"John Doe","age":44}