JAVA文本分页代码通过设置每页显示的字符数来分页

int intPageSize = 901;//设定每页显示的字符数   
        int i;//声明页数   
        int j2 = 0;//临时变量   
        int pp2 = 0;//临时变量   
        String body;//临时的内容存放地方
        if (request.getParameter("pp") == null || request.getParameter("pp") == "")//判断传递的页数是否为空，如为空则设启始页为0   
        {
            i = 0;
        }
        else//否则为接受页数   
        {
            i = Integer.parseInt(request.getParameter("pp"));//将接受页数转换为Int型   
        }
        /*lblText为页面显示文章的文本框   
          *   strNotes.Substring(i*intPageSize,intPageSize)   
          *   i*intPageSize为起始字符数   
          *   intPageSize为截取长度（每页显示的字符数）   
          *   其他<p>...</p>为段落修饰*/
       if (intPageSize > be.getBody().length()-intPageSize * i)
        {
         body = "<p   style='line-height:   200%'>" + be.getBody().substring(i * intPageSize, intPageSize*(i+1)) + "</p><p   align='right'>";
        }
        else
        {
         body="<p   style='line-height:   200%'>"+be.getBody().substring(i * intPageSize,be.getBody().length()-1 )+"</p><p   align='right'>";
        }
        /*   
          *   判断要显示的文本是否够分页，如果足够的话，换行<br>，准备加入分页的页码   
          *   */
        if (be.getBody().length() / intPageSize > 0)