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ID:11820352
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时间:2018-07-14
《java分页-使用多种方法实现分页技术文库》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、JAVA分页-使用多种方法实现分页技术文库.txt11生命是盛开的花朵,它绽放得美丽,舒展,绚丽多资;生命是精美的小诗,清新流畅,意蕴悠长;生命是优美的乐曲,音律和谐,宛转悠扬;生命是流淌的江河,奔流不息,滚滚向前////在struts中分页的一种实现//////////我的项目中的分页功能1,思路使用一个页面控制类,它记录页面信息,如上页,下页,当前页等。在查询的Action中,将这个控制类和查询条件一起传递给数据库访问bean,然后将这两个参数保存在用户session中。在分页控制Action中,利用接收到的分页参数调用数据库访问的bean.2,实现
2、(1)分页控制类/*@authornick*Createdon2004-3-18*filename:PageController.java***/packagecom.tower.util;/***@authornick*2004-3-18*用来进行翻页控制**/publicclassPageController{inttotalRowsAmount;//总行数booleanrowsAmountSet;//是否设置过totalRowsAmountintpageSize=2;//每页行数intcurrentPage=1;//当前页码intnextPage;
3、intpreviousPage;inttotalPages;//总页数booleanhasNext;//是否有下一页booleanhasPrevious;//是否有前一页Stringdescription;intpageStartRow;intpageEndRow;publicPageController(inttotalRows){setTotalRowsAmount(totalRows);}publicPageController(){}/***@parami*设定总行数*/publicvoidsetTotalRowsAmount(inti){if(
4、!this.rowsAmountSet){totalRowsAmount=i;totalPages=totalRowsAmount/pageSize+1;setCurrentPage(1);this.rowsAmountSet=true;}}/***@parami**当前页**/publicvoidsetCurrentPage(inti){currentPage=i;nextPage=currentPage+1;previousPage=currentPage-1;//计算当前页开始行和结束行if(currentPage*pageSize5、wsAmount){pageEndRow=currentPage*pageSize;pageStartRow=pageEndRow-pageSize+1;}else{pageEndRow=totalRowsAmount;pageStartRow=pageSize*(totalPages-1)+1;}//是否存在前页和后页if(nextPage>totalPages){hasNext=false;}else{hasNext=true;}if(previousPage==0){hasPrevious=false;}else{hasPrevious=true;6、};System.out.println(this.description());}/***@return*/publicintgetCurrentPage(){returncurrentPage;}/***@return*/publicbooleanisHasNext(){returnhasNext;}/***@return*/publicbooleanisHasPrevious(){returnhasPrevious;}/***@return*/publicintgetNextPage(){returnnextPage;}/***@return*/p7、ublicintgetPageSize(){returnpageSize;}/***@return*/publicintgetPreviousPage(){returnpreviousPage;}/***@return*/publicintgetTotalPages(){returntotalPages;}/***@return*/publicintgetTotalRowsAmount(){returntotalRowsAmount;}/***@paramb*/publicvoidsetHasNext(booleanb){hasNext=b;}/***@8、paramb*/publicvoidsetHasPrevious(boolean
5、wsAmount){pageEndRow=currentPage*pageSize;pageStartRow=pageEndRow-pageSize+1;}else{pageEndRow=totalRowsAmount;pageStartRow=pageSize*(totalPages-1)+1;}//是否存在前页和后页if(nextPage>totalPages){hasNext=false;}else{hasNext=true;}if(previousPage==0){hasPrevious=false;}else{hasPrevious=true;
6、};System.out.println(this.description());}/***@return*/publicintgetCurrentPage(){returncurrentPage;}/***@return*/publicbooleanisHasNext(){returnhasNext;}/***@return*/publicbooleanisHasPrevious(){returnhasPrevious;}/***@return*/publicintgetNextPage(){returnnextPage;}/***@return*/p
7、ublicintgetPageSize(){returnpageSize;}/***@return*/publicintgetPreviousPage(){returnpreviousPage;}/***@return*/publicintgetTotalPages(){returntotalPages;}/***@return*/publicintgetTotalRowsAmount(){returntotalRowsAmount;}/***@paramb*/publicvoidsetHasNext(booleanb){hasNext=b;}/***@
8、paramb*/publicvoidsetHasPrevious(boolean
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