更新时间:2022-02-13 22:44:36
经过漫长的一天,又...阅读了大量的 wiki 和常见问题,它终于可以工作了.
After a long day, and another... after reading lots of wikis and faqs, it finally works.
我做了什么:
故事:
我使用的是 Jersey 1.13,它默认使用(我相信)jaxb.
I was using Jersey 1.13 that uses (I belive) jaxb by default.
我把它改成了使用杰克逊
<init-param>
<param-name>com.sun.jersey.api.json.POJOMappingFeature</param-name>
<param-value>true</param-value>
</init-param>
如所述:
https://***.com/a/13895768/660990
这使我的球衣使用杰克逊,但问题仍然存在;jackson 还不能对数组进行反序列化.
This made my jersey use jackson, but the problem remains; jackson can't deserializer the array yet.
我强制使用 Jackson 提供程序:
<init-param>
<param-name>com.sun.jersey.config.property.packages</param-name>
<param-value>
your.project.packages;
org.codehaus.jackson.jaxrs</param-value>
</init-param>
https://***.com/a/3143214/660990
是一个必要的步骤,但还不够.必须激活 ACCEPT_SINGLE_VALUE_AS_ARRAY 标志.
Was a needed step, but not enough. It's necessary to activate the ACCEPT_SINGLE_VALUE_AS_ARRAY flag.
ObjectMapper objectMapper;
objectMapper = new ObjectMapper().configure(DeserializationFeature.ACCEPT_SINGLE_VALUE_AS_ARRAY, true);
我需要定义自定义反序列化器
public class MyResolver implements ContextResolver<ObjectMapper> {
@Override
public ObjectMapper getContext(final Class<?> objectType) {
...
return objectMapper;
}
}
为了做到这一点:
做完这一切还是不行……
After doing all of this it still didn't work...
经过一段时间的搜索,我发现:
After some more search time, I found:
讨论依赖性问题..
这解决了我的问题,Jersey v1.13 附带 Jackson v1.9.2 我需要 Jackson v2.0
This reveled my problem, Jersey v1.13 ships with Jackson v1.9.2 I need Jackson v2.0
我删除了 jersey-json 的依赖项,因为它包含 jackson 1.9.2:
I removed dependency for jersey-json, because it included jackson 1.9.2:
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-json</artifactId>
</dependency>
并直接声明依赖:
<dependency>
<groupId>com.fasterxml.jackson.jaxrs</groupId>
<artifactId>jackson-jaxrs-json-provider</artifactId>
</dependency>
参考:
注意:此更改移除了 Jersey 使用 Jaxb 或 jettison 的能力.
Note: this change removes the Jersey ability to use Jaxb or jettison.
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