java @Consumes(MediaType.APPLICATION_FORM_URLENCODED) FormParameter 为空
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@Consumes(MediaType.APPLICATION_FORM_URLENCODED) FormParameter is null
提问by
I've created a Jersey webservice that looks like this:
我创建了一个如下所示的 Jersey 网络服务：
@Path("/webhookservice")
public class Webhook {
@POST
@Consumes(MediaType.APPLICATION_FORM_URLENCODED)
public Response readData(@FormParam("payload") Payload payload, @Context HttpServletRequest req) {
// Gets client IP address
String ipAddress = (req.getRemoteHost().equals("") || req.getRemoteHost() == null) ? "UNKNOWN" : req.getRemoteHost();
// Persist data to DB
Persist.saveToDb(payload.getId(), Integer.toString(payload.getTimestamp()),
payload.getStatus(), payload.getAuth_code(),
payload.getTotal_amount(), payload.getRequired_amount(),
ipAddress);
// Repsond with a HTTP 200 OK
Response response = Response.status(200).build();
return response;
}
@GET
@Produces("text/plain")
public String testService() {
return "Service is up and working!";
}
}
The Payload class looks like this:
Payload 类如下所示：
@XmlRootElement
public class Payload {
private String id;
private int timestamp;
private String status;
private String auth_code;
private int total_amount;
private int required_amount;
// Getters
@XmlElement(name = "id")
public String getId() {
return this.id;
}
@XmlElement(name = "timestamp")
public int getTimestamp() {
return this.timestamp;
}
@XmlElement(name = "status")
public String getStatus() {
return this.status;
}
@XmlElement(name = "auth_code")
public String getAuth_code() {
return this.auth_code;
}
@XmlElement(name = "total_amount")
public int getTotal_amount() {
return this.total_amount;
}
@XmlElement(name = "required_amount")
public int getRequired_amount() {
return this.required_amount;
}
// Setters
public void setId(String id) {
this.id = id;
}
public void setTimestamp(int timestamp) {
this.timestamp = timestamp;
}
public void setStatus(String status) {
this.status = status;
}
public void setAuth_code(String auth_code) {
this.auth_code = auth_code;
}
public void setTotal_amount(int total_amount) {
this.total_amount = total_amount;
}
public void setRequired_amount(int required_amount) {
this.required_amount = required_amount;
}
}
And the request that I'm sending looks like this:
我发送的请求如下所示：
Content-Type: application/x-www-form-urlencoded Method: POST
内容类型：application/x-www-form-urlencoded 方法：POST
Unencodedbody:
未编码的正文：
payload={"id":"123123","auth_code":"191331","required_amount":101,"timestamp":1407775713,"status":"completed","total_amount":101}
Encodedbody:
编码体：
payload%3D%7B%22id%22%3A%22123123%22%2C%22auth_code%22%3A%22191331%22%2C%22required_amount%22%3A101%2C%22timestamp%22%3A1407775713%2C%22status%22%3A%22completed%22%2C%22total_amount%22%3A101%7D
But when I send the request off the 'payload' object is null in my 'readData()' function in the 'Webhook' class... Can anybody point me in the right direction?
但是，当我在“Webhook”类的“readData()”函数中发送请求时，“payload”对象为空……有人能指出我正确的方向吗？
采纳答案by Andrei I
Try using a @Consumes(MediaType.APPLICATION_XML)(also set it when you send the request) and then remove the @FormParam("payload")annotation. When you send the payload in your client, make sure it is XML encoded (without payload=).
尝试使用 a @Consumes(MediaType.APPLICATION_XML)（在发送请求时也设置它），然后删除@FormParam("payload")注释。当您在客户端中发送有效负载时，请确保它是 XML 编码的（没有payload=）。
Otherwise, if you want to stick with your schema (mixing MediaType.APPLICATION_FORM_URLENCODED with XML) you will have to decode manually the encoded XML String. What I mean is the following:
否则，如果您想坚持使用您的架构（将 MediaType.APPLICATION_FORM_URLENCODED 与 XML 混合），您将必须手动解码编码的 XML 字符串。我的意思是：
@Path("/webhookservice")
public class Webhook {
@POST
@Consumes(MediaType.APPLICATION_FORM_URLENCODED)
public Response readData(@FormParam("payload") String payload, @Context HttpServletRequest req) {
JAXBContext jaxbContext = JAXBContext.newInstance(Payload.class);
Unmarshaller unmarshaller = jaxbContext.createUnmarshaller();
StringReader reader = new StringReader(payload,);
Payload payload = (Payload) unmarshaller.unmarshal(reader);
//...
}
}
Why you must work with a String instead of a Payload parameter? Because noone tells Jersey/JAX-RS how to decode that String: it may be a JSON String, or an XML String.
为什么必须使用 String 而不是 Payload 参数？因为没有人告诉 Jersey/JAX-RS 如何解码该字符串：它可能是一个 JSON 字符串，或一个 XML 字符串。
回答by
I've done it like this, and it's working:
我已经这样做了，它正在工作：
@Path("users")
@POST
@Consumes(MediaType.APPLICATION_FORM_URLENCODED)
@Produces(MediaType.APPLICATION_JSON)
public Login postLogin( MultivaluedMap<String, String> personParams ) {
String user = personParams.getFirst(USER);
String pass = personParams.getFirst(PASSWORD);
