在春季添加Jaxb2消息转换器会中断Jackson2 json映射 [英] Adding Jaxb2 message converter in Spring breaks Jackson2 json mapping

问题描述

我正在努力做到这一点，以便我的Spring rest应用程序可以处理xml和json响应，但是似乎添加一个Jaxb消息转换器破坏了我的json映射.

I'm trying to make it so my Spring rest application can handle both xml and json responses, but it seems like adding a Jaxb message converter has broken my json mapping.

@Bean
public MappingJackson2HttpMessageConverter jsonConverter() {
    MappingJackson2HttpMessageConverter converter = new MappingJackson2HttpMessageConverter();
    SimpleModule simpleModule = new SimpleModule();
    simpleModule.addSerializer(String.class, new StringSerializer());
    ObjectMapper mapper = new ObjectMapper()
        .registerModule(simpleModule);
    converter.setObjectMapper(mapper);
    return converter;
}

@Bean
public Jaxb2RootElementHttpMessageConverter jaxbConverter() {
    return new Jaxb2RootElementHttpMessageConverter();
}

@Override
public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
    converters.add(jsonConverter());
    converters.add(jaxbConverter());
}

如果我在那里注释掉第二和第三种方法，那么一切都会再次开始工作(当然，除了xml映射！).但是，有了这些内容，我就搞砸了，例如序列化List<String>会生成[APPLEORANGEBANANA]，其中苹果，橙和香蕉是列表中的单独字符串.

If I comment out the second and third methods there, everything starts working again (except the xml mapping of course!). With those there, though, I get screwed up stuff, like serializing a List<String> results in [APPLEORANGEBANANA], where apple, orange, and banana are separate strings in the list.

如果我直接使用杰克逊对象映射器映射到json，则不会出现此问题，但是使用@ResponseBody批注自动序列化为json时，我会遇到此问题.

If I directly use a jackson object mapper to map to json, it doesn't have that issue, but using the @ResponseBody annotation to automatically serialize to json I have this issue.

有人有什么主意吗?

推荐答案

我删除了configureMessageConverters，它自动拾取了两个转换器，都没有问题.

I removed the configureMessageConverters and it picked up both of the converters automatically and neither has an issue.

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