SSI框架下，用jxl实现导出功能

SSI框架下，用jxl实现导出功能

先说明一下，这个是SSI框架下，前端用ExtJs，应用在一个企业级的系统中的导出功能，因为是摸索着做的，所以里面有一些代码想整理一下，如果有人看到了，请视自己的架构酌情借用

JS获取查询条件并跳转页面

//eform中按钮的click事件js
var wtly = comboBox.lastSelectionText;//问题来源
if(wtly==undefined)
wtly="";
var fxwt = searchField_fxwt.getValue();//分析问题
var whyslb = comboBox_1.lastSelectionText;//不安全行为类别
if(whyslb==undefined)
whyslb="";
var wzxwlb = comboBox_2.lastSelectionText;//违章类型类别
if(wzxwlb==undefined)
wzxwlb="";
var wzxz = comboBox_3.lastSelectionText;//违章性质
if(wzxz==undefined)
wzxz="";
var fxr = searchField_fxr.getValue();//发现人
var fxsjStart = searchField_fxsj.getValue();//开始时间
var fxsjEnd = dateField.getValue();//结束时间
var url='doBzaqAqjcZcxwAction_expWorkList?fxr='+fxr+'&wtly='+wtly+'&fxwt='+fxwt+'&whyslb='+whyslb+'&wzxwlb='+wzxwlb+'&wzxz='+wzxz+'&fxsjStart='+fxsjStart+'&fxsjEnd='+fxsjEnd;
window.location.href =url;

下面是Spring 中配置相关的业务层和DAO层

//Spring applicationContext注入相关的service，dao
<!-- 次日高风险作业表的配置 -->
    <bean id="BzaqXxglCrgfxzybAction" class="md.bzaq.xxbs.crgfx.action.BzaqXxglCrgfxzybAction" scope="prototype">
        <property name="bzaqXxglCrgfxzybService">
            <ref bean="bzaqXxglCrgfxzybService" />
        </property>
        <property name="bzaqAqjcZcxwService">
            <ref bean="bzaqAqjcZcxwService" />
        </property>
        <property name="bzaqAqjcZczzService">
            <ref bean="bzaqAqjcZczzService" />
        </property>
        <property name="bzaqAqjcZcglService">
            <ref bean="bzaqAqjcZcglService" />
        </property>
    </bean>
    <bean id="bzaqXxglCrgfxzybService" class="md.bzaq.xxbs.crgfx.service.BzaqXxglCrgfxzybServiceImpl">
        <property name="bzaqXxglCrgfxzybDao">
            <ref bean="bzaqXxglCrgfxzybDao" />
        </property>
    </bean>
    <bean id="bzaqXxglCrgfxzybDao" class="md.bzaq.xxbs.crgfx.dao.BzaqXxglCrgfxzybDAOImpl">
        <property name="sqlMapClientTemplate" ref="sqlMapClientTemplate" />
    </bean>

下面是后台控制层处理查询数据以及导出数据

//Controller  后台Action中的方法
public void expWorkList(){
        SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd");//小写的mm表示的是分钟
        SimpleDateFormat sdf1=new SimpleDateFormat("yyyy-MM");//小写的mm表示的是分钟
        Date today = new Date();
        //定义查找对象
        BzaqAqjcXwhzSearch bzaqAqjcXwhzSearch= new BzaqAqjcXwhzSearch();
        try {
            //解码，并且将参数存入查找对象中
            if(fxr!=null&&!"".equals(fxr)){
                fxr = java.net.URLDecoder.decode(fxr,"utf-8");//
                bzaqAqjcXwhzSearch.setFxr(fxr);
            }
            if(wtly!=null&&!"".equals(wtly)){
                wtly = java.net.URLDecoder.decode(wtly,"utf-8");
                bzaqAqjcXwhzSearch.setWtly(wtly);
            }
            if(fxwt !=null&&!"".equals(fxwt )){
                fxwt  = java.net.URLDecoder.decode(fxwt ,"utf-8");
                bzaqAqjcXwhzSearch.setFxwt(fxwt);
            }
            if(whyslb!=null&&!"".equals(whyslb)){
                whyslb = java.net.URLDecoder.decode(whyslb,"utf-8");
                bzaqAqjcXwhzSearch.setWhyslb(whyslb);
            }
            if(wzxwlb !=null&&!"".equals(wzxwlb)){
                wzxwlb  = java.net.URLDecoder.decode(wzxwlb ,"utf-8");
                bzaqAqjcXwhzSearch.setWzxwlb(wzxwlb);
            }
            if(wzxz !=null&&!"".equals(wzxz )){
                wzxz  = java.net.URLDecoder.decode(wzxz ,"utf-8");
                bzaqAqjcXwhzSearch.setWzxz(wzxz );
            }
            if(fxsjStart !=null&&!"".equals(fxsjStart )){

                bzaqAqjcXwhzSearch.setFxsjStart(fxsjStart );
            }
            if(fxsjEnd!=null&&!"".equals(fxsjEnd)){

                bzaqAqjcXwhzSearch.setFxsjEnd(fxsjEnd);
            }
            if(sfww!=null&&sfww.equals("是")){
                bzaqAqjcXwhzSearch.setSfww("是");
            }
        } catch (UnsupportedEncodingException e2) {
            // TODO Auto-generated catch block
            e2.printStackTrace();
        }

        //排序属性
        bzaqAqjcXwhzSearch.setOrderByClause(" fxsj  desc");

        HttpServletRequest request = (HttpServletRequest)ActionContext.getContext().get(org.apache.struts2.StrutsStatics.HTTP_REQUEST);
        String filePath=request.getSession().getServletContext().getRealPath("/");//模板路径
        String fileName = "行为违章.xls";//导出文件名
        if(ServletActionContext.getRequest().getHeader( "USER-AGENT" ).toLowerCase().indexOf( "msie" ) >  0  ){
            try {
                fileName =java.net.URLEncoder.encode(fileName,"utf-8");
            } catch (UnsupportedEncodingException e1) {
                // TODO Auto-generated catch block
                e1.printStackTrace();
            }
        }
        filePath=filePath.replaceAll("\\\\", "/");//模板路径
        filePath = filePath + "docs/xwwz.xls";//模板路径
        InputStream is;
        //所有的任务清单
        List bzaqAqjcZcxwList = new ArrayList();
        try {
            is = new FileInputStream(filePath);
            //Workbook为只读
            jxl.Workbook wb = jxl.Workbook.getWorkbook(is);
            //WritableWorkbook为可写入。
            //将WritableWorkbook直接写入到输出流。
            HttpServletResponse response = (HttpServletResponse)ActionContext.getContext().get(org.apache.struts2.StrutsStatics.HTTP_RESPONSE);
            OutputStream os = response.getOutputStream();
           jxl.write.WritableWorkbook wbook = jxl.Workbook.createWorkbook(os,wb);

           //可写入的单元格格式。
           jxl.write.WritableCellFormat wcf = new jxl.write.WritableCellFormat(); // 单元格定义
            wcf.setBackground(jxl.format.Colour.BLACK); // 设置单元格的背景颜色
            WritableFont font = new WritableFont(WritableFont.createFont("宋体"),10);//设置字体
            wcf.setFont(font);
            wcf.setAlignment(jxl.format.Alignment.LEFT); // 设置对齐方式左右居中
            wcf.setVerticalAlignment(jxl.format.VerticalAlignment.CENTRE);// 设置对齐方式上下居中
            wcf.setBorder(jxl.format.Border.ALL,jxl.format.BorderLineStyle.THIN);
            wcf.setWrap(true);

           //工作表。
           jxl.write.WritableSheet wsheet = wbook.getSheet(0);
           wsheet.setName("行为违章.xls");
           jxl.write.Label label = null;
            //任务清单列表数据
           bzaqAqjcZcxwList = bzaqAqjcZcxwService.getBzaqAqjcZcxwshz1(bzaqAqjcXwhzSearch);//查出要导出的数据
            int rwrows = 2;
            if(bzaqAqjcZcxwList.size()>0){
                for(int i=0;i<bzaqAqjcZcxwList.size();i++){
                    BzaqAqjcXwhz obj=(BzaqAqjcXwhz)bzaqAqjcZcxwList.get(i);
                       label =new  jxl.write.Label(0,rwrows+i ,obj.getFxwt(),wcf);
                       wsheet.addCell(label);

                       label =new  jxl.write.Label(1,rwrows+i ,obj.getWzxz(),wcf);
                       wsheet.addCell(label);

                       label =new  jxl.write.Label(2,rwrows+i ,obj.getWzxwlb(),wcf);
                       wsheet.addCell(label);

                       label =new  jxl.write.Label(3,rwrows+i ,obj.getZrdw(),wcf);
                       wsheet.addCell(label);

                       label =new  jxl.write.Label(4,rwrows+i ,obj.getZrbm(),wcf);
                       wsheet.addCell(label);

                       label =new  jxl.write.Label(5,rwrows+i ,obj.getZrbz(),wcf);
                       wsheet.addCell(label);

                       label =new  jxl.write.Label(6,rwrows+i ,obj.getSfww(),wcf);
                       wsheet.addCell(label);

                       label =new  jxl.write.Label(7,rwrows+i ,obj.getZrr(),wcf);
                       wsheet.addCell(label);

                       label =new  jxl.write.Label(8,rwrows+i ,obj.getJzqk(),wcf);
                       wsheet.addCell(label);

                       label =new  jxl.write.Label(9,rwrows+i ,obj.getZrrjf(),wcf);
                       wsheet.addCell(label);

                       label =new  jxl.write.Label(10,rwrows+i ,obj.getZrrcfje(),wcf);
                       wsheet.addCell(label);

                       label =new  jxl.write.Label(11,rwrows+i ,obj.getLdkhzrr(),wcf);
                       wsheet.addCell(label);

                       label =new  jxl.write.Label(12,rwrows+i ,obj.getLdkhje(),wcf);
                       wsheet.addCell(label);

                       label =new  jxl.write.Label(13,rwrows+i ,obj.getWzyyfx(),wcf);
                       wsheet.addCell(label);

                       label =new  jxl.write.Label(14,rwrows+i ,obj.getJzyfcs(),wcf);
                       wsheet.addCell(label);

                       label =new  jxl.write.Label(15,rwrows+i ,obj.getJcbm(),wcf);
                       wsheet.addCell(label);

                       label =new  jxl.write.Label(16,rwrows+i ,obj.getZw(),wcf);
                       wsheet.addCell(label);

                       label =new  jxl.write.Label(17,rwrows+i ,obj.getFxr(),wcf);
                       wsheet.addCell(label);

                       label =new  jxl.write.Label(18,rwrows+i ,obj.getWtly(),wcf);
                       wsheet.addCell(label);
                       Date fxsj = obj.getFxsj();
                       if(fxsj !=null)
                       {
                           label =new  jxl.write.Label(19,rwrows+i ,sdf.format(obj.getFxsj()),wcf);
                           wsheet.addCell(label);
                       }
                       if(obj.getYf()!=null)
                       {
                           label =new  jxl.write.Label(20,rwrows+i ,sdf1.format(obj.getYf()),wcf);
                           wsheet.addCell(label);
                       }
                       label =new  jxl.write.Label(21,rwrows+i ,obj.getWhyslb(),wcf);
                       wsheet.addCell(label);

                }

            }

            ///////在这里继续加第二个sheet页///////
            jxl.write.WritableSheet wsheet = wbook.getSheet(1);

            //获取客户端浏览器和操作系统信息
             if(ServletActionContext.getRequest().getHeader( "USER-AGENT" ).toLowerCase().indexOf( "msie" ) >  0  ){
                    response.setHeader("Content-Disposition", "attachment; filename="+fileName);
                }else{
                    response.addHeader("Content-Disposition", "attachment;filename="+ new String(fileName.getBytes("GB2312"),"ISO-8859-1"));
                }
               response.setContentType("application/vnd.ms-excel");
               wbook.write();
               wbook.close();
               os.close();

        } catch (FileNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (Exception e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        }

    }

模板

在对应的路径下，做一个对应文件名的EXCEL模板，SHEET页和标题，以及各字段的数据类型要和后台查出来的一致；