jakarta-ee - jdk1.7/jre/lib/rt.jar的访问限制

Question

大家好，我在创建 JAXB 解析器时遇到了一个非常奇怪的问题。当我尝试从 Eclipse 生成 JAXB 类时，在一个类中它显示了一个非常奇怪的错误，即

Access restriction: The type QName is not accessible due to restriction on required library /usr/lib/jvm/jdk1.7.0_02/jre/lib/rt.jar

这是我的课

package generated;

import javax.xml.bind.JAXBElement;
import javax.xml.bind.annotation.XmlElementDecl;
import javax.xml.bind.annotation.XmlRegistry;
//import javax.xml.namespace.QName;
import javax.xml.namespace.*;


@XmlRegistry
public class ObjectFactory {

在这条线上我收到了错误消息

private final static QName _ExpenseReport_QNAME = new QName("", "expenseReport");

    /**
     * Create a new ObjectFactory that can be used to create new instances of schema derived classes for package: generated
     * 
     */
    public ObjectFactory() {
    }

    /**
     * Create an instance of {@link ExpenseT }
     * 
     */
    public ExpenseT createExpenseT() {
        return new ExpenseT();
    }

    /**
     * Create an instance of {@link UserT }
     * 
     */
    public UserT createUserT() {
        return new UserT();
    }

    /**
     * Create an instance of {@link ItemT }
     * 
     */
    public ItemT createItemT() {
        return new ItemT();
    }

    /**
     * Create an instance of {@link ItemListT }
     * 
     */
    public ItemListT createItemListT() {
        return new ItemListT();
    }

    /**
     * Create an instance of {@link JAXBElement }{@code <}{@link ExpenseT }{@code >}}
     * 
     */
    @XmlElementDecl(namespace = "", name = "expenseReport")
    public JAXBElement<ExpenseT> createExpenseReport(ExpenseT value) {
        return new JAXBElement<ExpenseT>(_ExpenseReport_QNAME, ExpenseT.class, null, value);
    }

}

Answer 1

当您的类路径引用 JRE 而不是项目所在的 JDK 时会出现此问题，做一件事去

Build Path > Libraries

删除包含的运行时并添加 jdk 运行时，它现在应该可以解决您的问题了。