本文介绍了使用GSON创建JSON-LD的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我正在尝试使用Gson来阅读/编写文档。一个JSON-LD的例子:

  {
@context:{
name: http://xmlns.com/foaf/0.1/name,
homepage:{
@id:http://xmlns.com/foaf/0.1/workplaceHomepage,
@type:@id
},
Person:http://xmlns.com/foaf/0.1/Person
},
@id:http://me.markus-lanthaler.com,
@type:Person,
name:Markus Lanthaler,
homepage:http://www.tugraz.at/
}

我与Gson有关的问题是将@添加到某些字段的开头。我尝试使用注释,但是我收到错误:

  java.lang.IllegalArgumentException:@context不是有效的JSON字段名称。 

没有Seri​​alizedName注解中的@,它可以正常工作。似乎Gson无法处理@,即使它是有效的JSON?解析方案

我认为问题在于 Gson版,它至少可以使用1年。

所以请使用最新版本 ,它应该可以正常工作。 p>

以下是您可以执行的一些奇怪的事情:

 静态类A 
{
@SerializedName(@ co.nte:xt |)
public String s;


public static void main(String [] args)throws Exception
{
Gson gson = new Gson();
A a = gson.fromJson({\@ co.nte:xt | \:\s \},A.class);
return;
}


I'm trying to read/write JSON-LD documents using Gson. An example of JSON-LD:

{
  "@context": {
    "name": "http://xmlns.com/foaf/0.1/name",
    "homepage": {
      "@id": "http://xmlns.com/foaf/0.1/workplaceHomepage",
      "@type": "@id"
    },
    "Person": "http://xmlns.com/foaf/0.1/Person"
  },
  "@id": "http://me.markus-lanthaler.com",
  "@type": "Person",
  "name": "Markus Lanthaler",
  "homepage": "http://www.tugraz.at/"
}

The problem I have with Gson is adding the @ to the beginning of some of the fields. I tried using the @SerializedName annotation but I get errors:

java.lang.IllegalArgumentException: @context is not a valid JSON field name.

Without the "@" in the SerializedName annotation it works fine. Seems that Gson cannot handle the "@" even though it is valid JSON?

解决方案

I think the issue is your Gson version, it works at least for 1 year.

So please use the latest version, 2.2.4 from May, and it should just work.

Here is an example of strange things you can do:

static class A
{
    @SerializedName("@co.nte:xt|")
    public String s;
}

public static void main(String[] args) throws Exception
{
    Gson gson = new Gson();
    A a = gson.fromJson("{ \"@co.nte:xt|\": \"s\"}", A.class);
    return;
}

这篇关于使用GSON创建JSON-LD的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!

08-24 00:12