javax.xml.bind.UnmarshalException：意外的元素（URI：

Question

嘗試使用JAXB

 javax.xml.bind.UnmarshalException: unexpected element (uri:"http://SOMETHING/doc/2006-03-01/", local:"Name"). Expected elements are <{}Name>,<{}IsTruncated>,<{}MaxKeys>,<{}Contents>,<{}Prefix>,<{}Marker> 

這裏來轉換XML響應的Java對象時，我收到以下錯誤是我的XML：

 <ListBucketResult xmlns="http://something/doc/2006-03-01/"> 
      <Name>test2</Name> 
      <Prefix/> 
      <Marker/> 
      <MaxKeys>3</MaxKeys> 
      <IsTruncated>false</IsTruncated> 
      <Contents> 
        <Key>metadata.xml</Key> 
        <LastModified>2012-09-04T08:29:36.000Z</LastModified> 
        <ETag>6b836fd43c402681506926b2248ec418</ETag> 
        <Size>3258</Size> 
        <StorageClass>STANDARD</StorageClass> 
      </Contents> 
      </ListBucketResult> 

我的Java對象類是像這樣

  @XmlAccessorType(XmlAccessType.FIELD) 
    @XmlType(name = "", propOrder = { 
     "name", 
     "prefix", 
     "marker", 
     "maxKeys", 
     "isTruncated", 
     "contents" 
    }) 
    @XmlRootElement(name = "ListBucketResult") 
    public class ListBucketResult { 

@XmlElement(name = "Name", required = true) 
protected String name; 
@XmlElement(name = "Prefix", required = true) 
protected String prefix; 
@XmlElement(name = "Marker", required = true) 
protected String marker; 
@XmlElement(name = "MaxKeys") 
protected int maxKeys; 
@XmlElement(name = "IsTruncated") 
protected boolean isTruncated; 
@XmlElement(name = "Contents", required = true) 
protected ListBucketResult.Contents contents; 







     @XmlAccessorType(XmlAccessType.FIELD) 
     @XmlType(name = "", propOrder = { 
       "key", 
       "lastModified", 
        "eTag", 
        "size", 
       "storageClass" 
      }) 
      public static class Contents { 

    @XmlElement(name = "Key", required = true) 
    protected String key; 
    @XmlElement(name = "LastModified", required = true) 
    @XmlSchemaType(name = "dateTime") 
    protected XMLGregorianCalendar lastModified; 
    @XmlElement(name = "ETag", required = true) 
    protected String eTag; 
    @XmlElement(name = "Size") 
    protected int size; 
    @XmlElement(name = "StorageClass", required = true) 
    protected String storageClass; 

，最後我的解組代碼爲：

      JAXBContext jc = JAXBContext.newInstance(ListBucketResult.class); 
      Unmarshaller unmarshaller = jc.createUnmarshaller(); 
      unmarshaller.setEventHandler(new javax.xml.bind.helpers.DefaultValidationEventHandler()); 
       JAXBElement element = (JAXBElement) unmarshaller.unmarshal (inputStream); 
      ListBucketResult customer = (ListBucketResult) element.getValue(); 

有人請讓我知道我在做什麼不正確嗎？

Answer 1

XML文檔包含的元素是'http：// something/doc/2006-03-01 /'命名空間的一部分，但註釋的java類不與該命名空間相關聯。嘗試改變@XmlType註釋：

@XmlType(name = "", namespace="http://something/doc/2006-03-01/", propOrder = { ... 

Answer 2

您可以使用@XmlSchema註釋上package-info類控制的命名空間的資格。如果您已經編寫了package-info類，請確保它正在編譯中（某些版本的ant與package-info類有問題）。

包信息

@XmlSchema( 
    namespace = "http://something/doc/2006-03-01/", 
    elementFormDefault = XmlNsForm.QUALIFIED) 
package example; 

import javax.xml.bind.annotation.XmlNsForm; 
import javax.xml.bind.annotation.XmlSchema; 

更多信息

• http://blog.bdoughan.com/2010/08/jaxb-namespaces.html

Answer 3

我得到類似的錯誤org.codehaus.jackson.JsonParseException和javax.xml.bind.UnmarshalException：帶有鏈接的異常：[javax.xml.bind.UnmarshalException：意外的元素（uri：「sometext」，local：「elementA」）。預期的元素是。

這是整合的RESTEasy和春我的DTO的使用生成的JAXB 時。我正在使用傑克遜進行轉換。

爲了解決這個問題，我在Maven依賴項中引入了Jackson庫，它解決了我的問題。傑克遜依賴特定於這

<dependency> 
     <groupId>org.codehaus.jackson</groupId> 
     <artifactId>jackson-xc</artifactId> 
     <version>1.9.9</version> 
    </dependency> 

還有其他的傑克遜罐子，以及我需要的，所以我的POM本質上看如下。

//The jackson-core-asl jar contains streaming JSON parser and generator interfaces and implementations 
<dependency> 
     <groupId>org.codehaus.jackson</groupId> 
     <artifactId>jackson-core-asl</artifactId> 
     <version>1.9.9</version> 
    </dependency> 
//Ability to use JAXB annotations containing classes needed to add XML compatibility support. 
    <dependency> 
     <groupId>org.codehaus.jackson</groupId> 
     <artifactId>jackson-xc</artifactId> 
     <version>1.9.9</version> 
    </dependency> 
    //Mapper jar contains functionality for data binding: 
    <dependency> 
     <groupId>org.codehaus.jackson</groupId> 
     <artifactId>jackson-mapper-asl</artifactId> 
     <version>1.9.9</version> 
    </dependency> //This dependency makes a JAX-RS implementation like Jersey,RESTEasy use Jackson for binding of JSON to-from Java objects 
    <dependency> 
     <groupId>org.codehaus.jackson</groupId> 
     <artifactId>jackson-jaxrs</artifactId> 
     <version>1.9.9</version> 
    </dependency>