java,action跳转PageBean不保存直接new了一个新的是什么情况？

package cn.demo.utils;

public class Page {

private Integer currPage=1;     //当前页
private Integer pageSize;       //页面大小
private Integer totalCount;     //总记录数
private Integer pageCount;      //总页数
public Integer getCurrPage() {
    return currPage;
}
public void setCurrPage(Integer currPage) {
    if (currPage==null) {
        currPage=1;
    }else if (currPage>pageCount) {
        currPage=pageCount;
    }else if (currPage<1) {
        currPage=1;
    }
    this.currPage = currPage;
}
public Integer getPageSize() {
    return pageSize;
}
public void setPageSize(Integer pageSize) {
    if (pageSize>0) {
        this.pageSize = pageSize;
    }
}
public Integer getTotalCount() {
    return totalCount;
}
public void setTotalCount(Integer totalCount) {
    this.totalCount = totalCount;
    this.setPageCount(totalCount);
}
public Integer getPageCount() {
    return pageCount;
}
public void setPageCount(Integer totalCount) {
    if (totalCount>0) {
        this.pageCount = totalCount%pageSize==0?totalCount/pageSize:totalCount/pageSize+1;
    }
}

}
我怀疑是pageBean的问题？

之前pageBean有对象吗，如果一直公用一个对象，应该提前new一个全局的