未找到响应类 ArrayList 的消息正文编写器 [英] No message body writer has been found for response class ArrayList

问题描述

当我试图返回 List 时，它抛出的响应类 ArrayList 没有找到任何消息正文编写器.

While I am trying to return List its throwing No message body writer has been found for response class ArrayList.

我的代码如下:

@POST 
@Path("/{scope}/{application}/tables")
@Produces("application/xml")
public List<String> getTableNames(@PathParam("scope") String scope,
    @PathParam("application") String application, Request request) {

    // For example, I am returning a list of String
    return new ArrayList<String>(4);
}

请帮帮我.提前致谢

推荐答案

要返回一个列表，最好将它包装到一个带有 @XmlRootElement 注释的容器中，并将您的列表作为一个字段提供给该容器，注释为@XmlElement.

To return a list, best wrap it into a container annotated @XmlRootElement and give that container your list as a field, annotated as @XmlElement.

像这样:

@XmlRootElement
public class Container {
    @XmlElement
    public List yourlist;
}

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