No message body writer has been found for class org.springframework.data.domain.PageImpl, ContentType: application/json
原因：在cxf转换Page接口的实现类的时候，找不到@XmlRootElement注解。
解决办法：
1）直接把@XmlRootlement注解加到Page接口的实现类上面，但不可行！
2）自行设计一个PageBean对象
@XmlRootElement(name="pageBean")
public class PageBean<T> implements Serializable{
//当前页列表数据
private List<T> content;
//总记录数
private Long totalCount;
public List<T> getContent() {
return content;
}
public void setContent(List<T> content) {
this.content = content;
}
public Long getTotalCount() {
return totalCount;
}
public void setTotalCount(Long totalCount) {
this.totalCount = totalCount;
}
}
