java分页工具源码

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1、packagecom.xuewei.common.util.web;importjava.io.IOException;importjava.util.Enumeration;importjavax.servlet.http.HttpServletRequest;importjavax.servlet.http.HttpServletResponse;importjavax.servlet.jsp.JspException;importjavax.servlet.jsp.JspWriter;importja

2、vax.servlet.jsp.PageContext;importjavax.servlet.jsp.tagext.TagSupport;publicclassPageUtilTagextendsTagSupport{privateintrscount=0;//一共有多少行privateintpagesize=20;//每页有多少行[默认为20行]privateinttype=1;//默认值为1privateStringurl="";/***下面这些参数不需要页面传递*/privateintpageCou

3、nt=0;privateintcurrentPage=1;privateHttpServletRequestrequest;publicStringgetUrl(){returnurl;}publicvoidsetUrl(Stringurl){this.url=url;}publicintgetType(){returntype;}publicvoidsetType(inttype){this.type=type;}publicintgetRscount(){returnrscount;}publicvoi

4、dsetRscount(intrscount){this.rscount=rscount;}publicintgetPagesize(){returnpagesize;}publicvoidsetPagesize(intpagesize){this.pagesize=pagesize;}@OverridepublicintdoEndTag()throwsJspException{PageContextpageContext=this.pageContext;HttpServletRequestrequest

5、=(HttpServletRequest)pageContext.getRequest();this.request=request;HttpServletResponseresponse=(HttpServletResponse)pageContext.getResponse();JspWriterout=pageContext.getOut();//获取总记录数intrsCount=this.getRscount();//获取每页显示多少条intpageSize=this.getPagesize();/

6、/获取总记录数intpageCount=this.getpageCount();//获取当前页intcurrentPage=this.getcurrentPage(request);//创建工具条StringpageTool=this.createPageTool(this.type);try{out.println(pageTool);}catch(IOExceptione){e.printStackTrace();}returnsuper.doEndTag();}/***获取总页数**@returnin

7、t*/privateintgetpageCount(){try{this.pageCount=((this.rscount-1)/this.pagesize)+1;}catch(Exceptionex){ex.printStackTrace();this.pageCount=0;}returnthis.pageCount;}/***获取当前页码的设置**@returnint*/privateintgetcurrentPage(HttpServletRequestrequest){try{if(request

8、.getParameter("currentPage")!=null&&Integer.parseInt(request.getParameter("currentPage"))>1){this.currentPage=Integer.parseInt(request.getParameter("currentPage"));}else{this.currentPage=1;}}catch(Exceptionex