问题描述
如何处理json请求并在dropWizard中解析请求参数?
How to handle json requests and parse the request parameters in dropWizard?
@POST
@Path("/test")
@Consumes(MediaType.APPLICATION_JSON)
@Produces(MediaType.APPLICATION_JSON)
public String test(@Context final HttpServletRequest request) {
JSONObject data=new JSONObject();
System.out.println(request);
System.out.println(request.getParameterMap());
System.out.println(">>>>>>>>>");
return "{\"status\":\"ok\"}";
}
我编写了上面的代码，并尝试了以下请求.
I wrote the above code and tried the following request.
curl -XPOST -H "Content-Type: application/json" --data {"field1":"val1", "field2":"val2"} http://localhost:8080/test
但是request.getParameterMap()是{}
如何在不编写包装器类的情况下解析参数?
How to parse the parameters without writing a wrapper class?
推荐答案
您的curl命令可能需要在数据周围加上一些引号(如果没有它们，我会得到一个错误):
Your curl command may need some additional quotes around the data (I'm getting an error without them):
curl -H "Content-type: application/json" -X POST -d '{"field1":"tal1", "field2":"val2"}' http://localhost:8080/test
您正在发送POST请求，没有 URL参数.我不确定为什么您期望在那里看到一些东西.
You are sending a POST request without URL parameters. I'm not sure why you are expecting to see something there.
我不知道您使用的是哪个版本的dropwizard，但是当对方法进行注释时，我无法使@POST和@Path("/something")注释的组合起作用.我正在获取HTTP ERROR 404.
I don't know which version of dropwizard you are using but I couldn't make the combination of @POST and @Path("/something") annotation to behave when a method is annotated. I'm getting HTTP ERROR 404.
要使其正常工作，我必须将@Path注释移至资源/类级别，并在方法中仅保留@Post注释.
To make it work I have to move the @Path annotation to the resource/class level and leave only the @Post annotation at the method.
@Path("/test")
public class SimpleResource {
@POST
@Consumes(MediaType.APPLICATION_JSON)
public String test(final String data) throws IOException {
System.out.println("And now the request body:");
System.out.println(data);
System.out.println(">>>>>>>>>");
return "{\"status\":\"ok\"}";
}
}
要以String的形式获取请求的正文，请执行上述操作.从此处获取:如何使用Jersey获得完整的REST请求正文?
To get the body of the request as String just do as above. Taken from here: How to get full REST request body using Jersey?
控制台看起来像:
INFO [2016-11-24 15:26:29,290] org.eclipse.jetty.server.Server: Started @3539ms
And now the request body:
{"field1":"tal1", "field2":"val2"}
>>>>>>>>>
这篇关于解析请求参数而无需编写包装器类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！