泽西岛，如何POST一个JSON对象列表？ [英] Jersey, how to POST a list of JSON objects?

问题描述

我正在使用Jersey 1.11在Java中构建RESTful Web服务，并且在实现一个消耗JSON-ised实体列表的方法时遇到了问题。单实例方法工作正常。

I am building a RESTful web-service in Java using Jersey 1.11, and have problems implementing a method which consumes a list of JSON-ised entities. The single instance method works fine.

我得到的错误是：

Status 400 - Bad Request. The request sent by the client was syntactically incorrect.

我的方法签名如下所示：

My method signature looks like this:

@POST
@Path("/some-path/{someParam}")
@Produces(MediaType.APPLICATION_JSON)
@Consumes(MediaType.APPLICATION_JSON)
public String createBatch(List<MyEntity> myEnts, @PathParam("someParam") String someParam)
{
   ... 
}

我在请求中发送的JSON是一个 MyEntity JSON对象的数组：

The JSON I am sending in the requests is an array of MyEntity JSON objects:

[{"field1" : value1, "field2" : value2}, {"field1" : value3, "field2" : value4}, ...]

以前曾提出类似的问题，一个直接的建议是将消费的媒体类型更改为文本并反序列化 JSON手动但我更喜欢更清洁的解决方案。

Similar questions have been asked before and one straight forward suggestion was to change the consumed media type to text and de-serialize the JSON manually but I'd prefer a cleaner solution.

我发送的JSON是否在t中有效他的上下文还是我需要顶级 {} ，即包装器实体？这看起来有点不自然。

Is the JSON I am sending even valid in this context or do I need a top-level {} i.e a wrapper entity? This would also seem a bit un-natural.

谢谢，

/ David

推荐答案

我认为PathParam以及一个应该由Jersey（JAX-RS）解组的Param是不可能的。
请尝试删除PathParam参数。

I think PathParam and also a Param which should unmarshalled by Jersey(JAX-RS) is not possible. Please try to remove the PathParam Parameter.

如果你需要第二个参数，那么创建一个这样的新类

And if you need the second Parameter so create a new class like this

@XmlRootElement(name = "example")
public class Example {
  @XmlElement(name = "param")
  private String param;
  @XmlElement(name = "entities")
  private List<MyEntity> entities;
}

并修改你的Methode：

and also modify your Methode :

@POST
@Path("/some-path")
@Produces(MediaType.APPLICATION_JSON)
@Consumes(MediaType.APPLICATION_JSON)
public String createBatch(Example example)
{
   ... 
}

你的JSON应该是这样的：

your JSON Should look like this:

{
 "param":"someParam",
 "entities":[
   {"field1" : value1, "field2" : value2}, {"field1" : value3, "field2" : value4}, ...]
}

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