struts2 用stream导出excel/word(导出内容由XML关联自定义的XSL文件构成的)

<p style="text-align:left; padding-top:15px">
<b>导出声明：</b><font color = "red">勾选选定导出则按照勾选的学生进行导出，否则将按当前视图进行导出</font>
</p>
<p style="text-align:left; padding-top:15px">
<input type="checkbox" name = "require" id = "require" value="1" onclick = "require()">  选定导出<font color = "red">[勾选后将会根据你选定的学生进行导出]</font></p>
<p style="text-align:center; padding-top:15px">
<input type="button" value="全选" onclick="allSelect('stu');"/>
<input type="button" value="反选" onclick="invertSelect('stu');"/>
</p>
<p></p>
<p style="text-align:center; padding-top:15px">
选择需要导出的选项：</br>
<input type="checkbox" name="stu" id="a" value="学生学号">学生学号  
<input type="checkbox" name="stu" id="a" value="学生姓名">学生姓名  
<input type="checkbox" name="stu" id="a" value="学生性别">学生性别  
<input type="checkbox" name="stu" id="a" value="学生专业">学生专业  
<input type="checkbox" name="stu" id="a" value="专业学制">专业学制</br>

<input type="checkbox" name="stu" id="a" value="入学年份">入学年份  
<input type="checkbox" name="stu" id="a" value="毕业年份">毕业年份  
<input type="checkbox" name="stu" id="a" value="电子邮箱">电子邮箱  
<input type="checkbox" name="stu" id="a" value="通信地址">通信地址  
<input type="checkbox" name="stu" id="a" value="家庭地址">家庭地址</br>

<input type="checkbox" name="stu" id="a" value="工作省市">工作省市  
<input type="checkbox" name="stu" id="a" value="工作单位">工作单位  
<input type="checkbox" name="stu" id="a" value="工作岗位">工作岗位  
<input type="checkbox" name="stu" id="a" value="职务职称">职务职称  
<input type="checkbox" name="stu" id="a" value="办公电话">办公电话</br>

<input type="checkbox" name="stu" id="a" value="QQ号码">QQ号码  
<input type="checkbox" name="stu" id="a" value="手机号码">手机号码</br>
</p>
<p style="text-align:center; padding-top:15px">
<input type="button" value="全选" onclick="allSelect('stu');"/>
<input type="button" value="反选" onclick="invertSelect('stu');"/>
        
<input type="button" value="导出" onclick="exportExcel('exportExcelAction.action');"/>
</p>

页面时经过js跟后台进行交互的，这里的导出不支持Ajax的

/**
* 导出excel
* */
function exportExcel(tagAction){
//获取当前视图
var showType = $("#showType").val();
var major = $("#major").val();
var address = $("#address").val();
var searchType = $("#searchType").val();
var searchContext = $("#searchinput").val();    //查询的内容
if($("#require").attr("checked")==true){                    //选定导出
var ids1=new Array();
if($("input[name='id']:checked").size()==0){
alert("选择需要导出的学生！");
return false;
}
$("input[name='id']:checked").each(function(i,obj){
ids1[i]=$(obj).val();
});
var idStuStr = ids1.join("-");
}
//获取要导出的项
var ids=new Array();
if($("input[name='stu']:checked").size()==0){
alert("选择需要导出的项！");
return false;
}
$("input[name='stu']:checked").each(function(i,obj){
ids[i]=$(obj).val();
});
var idStr = ids.join("-");
if(showType == undefined){
showType = 0;
}
if(major == undefined){
major = 0;
}
if(address == undefined){
address = 0;
}
if(idStuStr == undefined){
idStuStr = 0;
}
//alert(idStr+major + showType+ idStuStr);
//return false;
//进行乱码处理，进行两次encodeURI包装
window.location.href=""+tagAction+"?idStr="+encodeURI(encodeURI(idStr))+"&showType="+encodeURI(encodeURI(showType))+"&major="+encodeURI(encodeURI(major))+"&address="+encodeURI(encodeURI(address))+"&idStuStr="+encodeURI(encodeURI(idStuStr))+"&searchType="+encodeURI(encodeURI(searchType))+"&searchContext="+encodeURI(encodeURI(searchContext))+"";
}

 

 

struts.xml

<!-- excel导出 -->
<action name="exportExcelAction" class="xidian.sl.action.StuInforAction">
<result name="success" type="stream"><!-- type="stream"表示要以二进制的文件去进行下载 -->
<param name="contentType">application/vnd.ms-excel</param><!-- 指明文件的类型 -->
<!--attachment属性是要选择打开时单独打开，而不是在浏览器中打开，默认是inline. 指明下载时文件的名字 -->
<param name="contentDisposition">attachment;filename="stu_infor.xls"</param>
<param name="inputName">exportInfor</param><!-- 指明文件下载的方法的名字 -->
</result>
</action>

有些情况下我们需要动态获取文件名，因为有些附件下载等，文件的类型是不能预料的

<!-- 附件下载 -->
<action name = "attachmentDownload" class = "xidian.sl.crm.action.common.AttachmentAction" method = "getAttachmentDownload">
<result name="success" type="stream">
<!--<param name="contentType">${contentType}</param>

118a5
-->
<param name="contentDisposition">attachment;filename="${path}"</param>
<param name="inputName">download</param>
</result>
</action>

然后在类中进行相应变量的赋值，提供get,set方法：如：

path = new String(attachment.getAttachmentName().getBytes(), "ISO-8859-1");                //转码，解决中文乱码问题

 

action层：

/**
* 导出excel操作，get方法名必须与struts.xml中指定的文件下载方法名对应
* */
public InputStream getExportInfor() throws Exception{
idStr = java.net.URLDecoder.decode(idStr, "UTF-8");                //进行编码的转换，导出的项
major = java.net.URLDecoder.decode(major, "UTF-8");
showType = java.net.URLDecoder.decode(showType, "UTF-8");
address = java.net.URLDecoder.decode(address, "UTF-8");
idStuStr = java.net.URLDecoder.decode(idStuStr, "UTF-8");
searchContext = java.net.URLDecoder.decode(searchContext, "UTF-8");
initialize();
System.out.println(idStr + major+ showType+ address+ idStuStr+searchContext+searchType );
return this.stuInforService.getInputStream(city, major, showType, address, idStr, idStuStr, searchType, searchContext);
}

serviceInterface:

/**
* 进行excel的导出
* */
public InputStream getInputStream(String city, String major, String showType, String address, String idStr, String idStuStr, int searchType, String searchContext);

serviceImpl:

/*
* 对excel导出做处理
* */
public InputStream getInputStream(String city, String major, String showType, String address, String idStr, String idStuStr, int searchType, String searchContext) {
//System.out.println("专业："+major+"  视图类型"+showType+"     "+idStr);
String[] ids = idStr.split("-");

HSSFWorkbook wb = new HSSFWorkbook();                //使用poi，导入poi的包，首先要生成一个HSSFWorkbook对象
HSSFSheet sheet = wb.createSheet("sheet1");            //创建excel的sheet

HSSFRow row=sheet.createRow(0);                        //创建第一行
HSSFCell cell=row.createCell((short)0);                //创建第一个单元格
cell.setEncoding(HSSFCell.ENCODING_UTF_16);            //每个单元格都要设置编码格式
cell.setCellValue("序号");
for(int i=0;i<ids.length; i++){
cell=row.createCell((short)(i+1));                //依次创建单元格
cell.setEncoding(HSSFCell.ENCODING_UTF_16);        //每个单元格都要设置编码格式
cell.setCellValue(ids[i]);
}
/*
* 到此表头已经设计好了,下面就进行数据的插入
* */
List<StuInfor> stuInfors = new ArrayList<StuInfor>();
if(idStuStr == null){
stuInfors = stuInforDAO.getStuInforListByHQL(getHQL(city, showType, major, address, searchType, searchContext));
}else{
stuInfors = stuInforDAO.getStuInforListByHQL(getHql(idStuStr));
}
for(int i=0;i<stuInfors.size();i++){
StuInfor stuInfor = stuInfors.get(i);                //获得一条记录
row=sheet.createRow(i+1);                            //产生下面的其他行
cell=row.createCell((short)0);                        //第一个单元格
cell.setEncoding(HSSFCell.ENCODING_UTF_16);
cell.setCellValue(i+1);

for(int a=0;a<ids.length; a++){                       //后面的单元格依次显示要显示的内容
cell=row.createCell((short)(a+1));
cell.setEncoding(HSSFCell.ENCODING_UTF_16);
if(ids[a].equals("学生学号")){
cell.setCellValue(stuInfor.getStuNum());
}else if(ids[a].equals("学生姓名")){
cell.setCellValue(stuInfor.getStuName());
}else if(ids[a].equals("学生性别")){
cell.setCellValue(stuInfor.getStuSex());
}else if(ids[a].equals("学生专业")){
cell.setCellValue(stuInfor.getStuZy());
}else if(ids[a].equals("专业学制")){
cell.setCellValue(stuInfor.getStuXz());
}else if(ids[a].equals("入学年份")){
cell.setCellValue(stuInfor.getStuStartTime());
}else if(ids[a].equals("毕业年份")){
cell.setCellValue(stuInfor.getStuEndTime());
}else if(ids[a].equals("电子邮箱")){
cell.setCellValue(stuInfor.getStuEmail());
}else if(ids[a].equals("通信地址")){
cell.setCellValue(stuInfor.getStuCommAddress());
}else if(ids[a].equals("家庭地址")){
cell.setCellValue(stuInfor.getStuAddress());
}else if(ids[a].equals("工作省市")){
cell.setCellValue(stuInfor.getStuWorkAddress());
}else if(ids[a].equals("工作单位")){
cell.setCellValue(stuInfor.getStuWorkPlace());
}else if(ids[a].equals("工作岗位")){
cell.setCellValue(stuInfor.getStuWorkPost());
}else if(ids[a].equals("职务职称")){
cell.setCellValue(stuInfor.getStuWorkZc());
}else if(ids[a].equals("办公电话")){
cell.setCellValue(stuInfor.getStuPhone());
}else if(ids[a].equals("QQ号码")){
cell.setCellValue(stuInfor.getStuQq());
}else if(ids[a].equals("手机号码")){
cell.setCellValue(stuInfor.getStuTelephone());
}
}
}
/*
* 以上就生成了所需的excel文件
*下面写另外一个方法直接不产生临时文件，就在内存中
*/
ByteArrayOutputStream os=new ByteArrayOutputStream();
try {
wb.write(os);
} catch (IOException e) {
e.printStackTrace();
}
byte[] content=os.toByteArray();
InputStream is=new ByteArrayInputStream(content);
return is;

}

持久层的操作这里就省略不写了；