Java 使用 Jersey 2 客户端发布空体
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/20585348/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Post empty body with Jersey 2 client
提问by Stine
How do I submit a post request with an empty body with a Jersey 2 client?
如何向 Jersey 2 客户端提交带有空正文的发布请求？
final MyClass result = ClientBuilder.newClient()
.target("http://localhost:8080")
.path("path")
.queryParam("key", "value")
.request(APPLICATION_JSON)
.post(What to fill in here if the body should be left empty??, MyClass.class);
Update:this works:
更新：这有效：
final MyClass result = ClientBuilder
.newBuilder().register(HymansonFeature).build()
.target("http://localhost:8080")
.path("path")
.queryParam("key", "value")
.request(APPLICATION_JSON)
.post(null, MyClass.class);
采纳答案by Alden
I can't find this in the doc's anywhere, but I believe you can use nullto get an empty body:
我在文档的任何地方都找不到这个，但我相信你可以null用来得到一个空的身体：
final MyClass result = ClientBuilder.newClient()
.target("http://localhost:8080")
.path("path")
.queryParam("key", "value")
.request(APPLICATION_JSON)
.post(Entity.json(null), MyClass.class)
回答by roanbaga
I don't know if the version change it. But, the following doesn't work:
不知道版本有没有变化。但是，以下不起作用：
builder.put( Entity.json( null ) );
builder.put( Entity.json( null ) );
Where, the following works fine:
在哪里，以下工作正常：
builder.put( Entity.json( "" ) );
builder.put( Entity.json( "" ) );
回答by Gapmeister66
I found that this worked for me:
我发现这对我有用：
Response r = client
.target(url)
.path(path)
.queryParam(name, value)
.request()
.put(Entity.json(""));
Pass an empty string, not a null value.
传递空字符串，而不是空值。
回答by Emmanuel Osimosu
Just post an empty txt.
只需发布一个空的txt。
.post(Entity.text(""));
回答by Michael
It worked for me only with an empty json object string
它仅适用于空的 json 对象字符串
.post(Entity.json("{}")
All other solutions, still produced 400 Bad Request
所有其他解决方案，仍在生产 400 Bad Request
P.S. The request is done using MediaType.APPLICATION_JSON
PS请求是使用完成的 MediaType.APPLICATION_JSON
