xml - 400 对剩余应用程序/xml 的错误请求

Question

正在使用 Jersey 框架开发简单的休息网络服务。编写的 @POST 方法使用并生成 { MediaType.APPLICATION_JSON,MediaType.APPLICATION_XML }。使用 chrome Advance Rest 客户端调用 Web 服务。对于以下 application/json 请求，Web 服务按预期工作

{"noSave": "Save", "dateCre":"14/12/2014"} 

但是以下 appliation/xml 请求收到 400 错误请求

<?xml version="1.0" encoding="UTF-8">
<noSave>Save</noSave>
<dateCre>14/12/2014</dateCre>

代码中没有编译错误。感谢您对解决以下问题的任何帮助。下面是我写的代码

请求对象:

import java.math.BigDecimal;
import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlType;

@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "Creation", propOrder = {

})
public class Creation {

    @XmlElement(required = true)
    protected String noSave;
    @XmlElement(required = true)
    protected String dateCre;

    public String getNoSave() {
        return noSave;
    }

    public void setNoSave(String value) {
        this.noSave = value;
    }

    public String getDateCre() {
        return dateCre;
    }

    public void setDateCre(String value) {
        this.dateCre = value;
    }
}

响应对象:

import javax.xml.bind.annotation.XmlAccessType;
import javax.xml.bind.annotation.XmlAccessorType;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlType;
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "MyResponse", propOrder = {

})
public class MyResponse {

    @XmlElement(required = true)
    protected String resString;
    public String getResString() {
        return resString;
    }
    public void setResString(String value) {
        this.resString = value;
    }
}

休息网络服务:

import javax.validation.Valid;
import javax.ws.rs.Consumes;
import javax.ws.rs.POST;
import javax.ws.rs.PUT;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;

@Path("/create")
public class CreateRequest {

    @POST
    @Produces({  MediaType.APPLICATION_JSON,MediaType.APPLICATION_XML })
    @Consumes({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
    public Response createReq( @Valid Creation request)
    {
        System.out.println(" Request "+request.getNoSave());
        MyResponse result = new MyResponse();
        result.setResString(" Created with Number 123");
        return Response.ok(result).build();
    }
}

下面是 chrome Rest 客户端出现的错误

Status 400 Bad Request. Loading time: 4250
Request headers User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like      Gecko) Chrome/39.0.2171.95 Safari/537.36
Origin: chrome-extension://hgmloofddffdnphfgcellkdfbfbjeloo
Content-Type: application/xml 
Accept: */*
Accept-Encoding: gzip, deflate
Accept-Language: en-GB,en-US;q=0.8,en;q=0.6
Response headers Server: Apache-Coyote/1.1 
Content-Type: text/html;charset=utf-8 
Content-Language: en 
Content-Length: 990 
Date: Tue, 13 Jan 2015 13:53:11 GMT 
Connection: close

我也尝试了下面的代码

@XmlRootElement(name="Creation")
@XmlAccessorType(XmlAccessType.FIELD)
@XmlType(name = "Creation", propOrder = {

})
public class Creation {

以及下面的 xml 请求。但遇到同样的错误

<?xml version="1.0" encoding="UTF-8">
<Creation>
    <noSave>NoSave</noSave>
    <dateCre>14/12/2014</dateCre>
</Creation>

日志中显示以下错误

javax.xml.bind.UnmarshalException: unexpected element (uri:"", local:"Creation"). Expected elements are <{http://check.com/rrs}Creation>

Answer 1

这个

<?xml version="1.0" encoding="UTF-8">
<noSave>Save</noSave>
<dateCre>14/12/2014</dateCre>

不是有效的 XML。 XML 文档应该只有一个 根元素。对于 POJO 映射，根元素应该是 <Creation> 。所以尝试一下

<?xml version="1.0" encoding="UTF-8"?>
<Creation>
    <noSave>sdfshd</noSave>
    <dateCre>3840389</dateCre>
</Creation>

您还应该添加@XmlRootElement到你的类(class)

@XmlRootElement(name = "Creation")
public class Creation {

同样适用于MyResponse

@XmlRootElement(name = "MyResponse")
public class MyResponse {

使用 XML，您将获得返回

<MyResponse>
    ...
</MyResponse>

没有办法解决这个问题。这就是 XML 的工作原理。

---

更新

您还缺少 ?在 xml header 的末尾。

<?xml version="1.0" encoding="UTF-8"?>   // See the `?`. You are missing that

尽管 header 甚至不是必需的。只需发送

<Creation>
    <noSave>sdfshd</noSave>
    <dateCre>3840389</dateCre>
</Creation>

我已经测试过了，效果很好