Question

我希望能够直接从浏览器调用我的Web服务。通过Web浏览器从HTTPClient调用它是可以的，但如果我尝试通过浏览器直接调用它，我会收到以下错误：

SEVERE: [Request processing failed; nested exception is org.springframework.http.converter.HttpMessageConversionException: Could not instantiate JAXBContext for class [class com.mycompanay.MyClass]: 8 counts of IllegalAnnotationExceptions; nested exception is com.sun.xml.internal.bind.v2.runtime.IllegalAnnotationsException: 8 counts of IllegalAnnotationExceptions
com.mycompany.MyInterface is an interface, and JAXB can't handle interfaces.
    this problem is related to the following location:
        com.mycompany.myInteface
        at private java.util.List com.mycompanay.MyClass.values
        at com.mycompanay.myClass
@XmlAttribute/@XmlValue need to reference a Java type that maps to text in XML.
    this problem is related to the following location:

我试图通过@XMLElement注释引用implmentation类，但我得到了同样的错误：

public MyClass {
    @XmlElement(type=MyInterfaceImpl.class, name="values")
    private List<MyInterface> values;

    @XmlElement(type=MyInterfaceImpl.class, name="values")
    public void getValues() {
    return values;
   }
}

Answer 1

使用@XmlElement注释指定实现类型是正确的。问题仍然存在，因为默认情况下JAXB会将公共属性视为映射。这就是它仍在尝试处理接口的原因。由于您有注释的tr字段，因此可以将XmlAccessorType(XmlAccessType.FIELD)添加到您的班级。

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Spring MVC从浏览器调用Web服务端点

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