Spring集成Copass有关问题，查询索引的时候查询的结果为0，包导入正确，xml配置Copy的，应该没有有关问题

@Entity @Searchablepublic class Department implements Serializable {    /**     *      */    private static final long serialVersionUID = 1L;    private int id;    private String name;    private String content;    private Set<Employee> employee = new HashSet<Employee>();    @Id @GeneratedValue @Column(length=16) @SearchableId    public int getId() {        return id;    }    public void setId(int id) {        this.id = id;    }    @Column(length=32 , nullable=false)   @SearchableProperty(index=Index.NOT_ANALYZED,store=Store.YES)    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    @OneToMany(mappedBy ="department",cascade=CascadeType.ALL,fetch=FetchType.LAZY)    public Set<Employee> getEmployee() {        return employee;    }    public void setEmployee(Set<Employee> employee) {        this.employee = employee;    }    @SearchableProperty(index=Index.NOT_ANALYZED,store=Store.YES)    public String getContent() {        return content;    }    public void setContent(String content) {        this.content = content;    }    }

@Servicepublic class DepartmentServiceBean  extends DaoSupport<Department> implements DepartmentService{    private CompassTemplate compassTemplate = null;    @Resource    public void setCompass(Compass compass){        this.compassTemplate = new CompassTemplate(compass);    }         //某个产品类别下的产品    public  QueryResult<Department> searchDeparment(String keyword, int firstIndex, int  maxResult) {            QueryResult<Department> qr = new  QueryResult<Department>();           try{            qr = compassTemplate.execute(new QueryCallback(keyword,  firstIndex, maxResult));         } catch  (CompassException e) {                     e.printStackTrace();            }finally {            }            return  qr;       }}

public class QueryCallback implements CompassCallback<QueryResult<Department>>{    private String keyword;    private int  firstIndex;     private int  maxResult;        public QueryCallback(String keyword, int firstIndex, int maxResult) {        this.keyword = keyword;        this.firstIndex = firstIndex;        this.maxResult = maxResult;    }    public QueryResult<Department> doInCompass(CompassSession session)            throws CompassException {        QueryResult<Department> queryResult = new QueryResult<Department>();        try {        CompassHits hits =  session.find(keyword);        int lenght = firstIndex + maxResult>hits.length()?hits.length():firstIndex + maxResult;        queryResult.setTotalrecord(hits.length());        List <Department> departList = new ArrayList<Department>();        for (int i = firstIndex; i < lenght; i++) {            Department department = (Department) hits.data(i);            System.out.println("department="+department==null);            if(hits.highlighter(i).fragment("name")!=null){                department.setName(hits.highlighter(i).fragment("name"));            }            if(hits.highlighter(i).fragment("content")!=null){                department.setContent(hits.highlighter(i).fragment("content"));            }            departList.add(department);        }        queryResult.setResultlist(departList);        } catch (Exception e) {            e.printStackTrace();        }        return queryResult;    }}