本文实例讲述了java导出txt文件的方法。分享给大家供大家参考。具体如下：
例子一
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/**
* export导出文件
*/
@requestmapping(value="/grab/export/csv",method={requestmethod.get})
public void exportcsv(httpservletrequest request,httpservletresponse response){
string userid = servletrequestutils.getstringparameter(request, "userid", "test");
modelandview mav=new modelandview();
sqlvideolist sqlvideolist =new sqlvideolist();
list<videolistmodel> list = new arraylist<videolistmodel>();
try {
list = sqlvideolist.selectsuccessdate(userid);
} catch (sqlexception e) {
// todo auto-generated catch block
e.printstacktrace();
}
//导出txt文件
response.setcontenttype("text/plain");
string filename="videolist";
try {
filename = urlencoder.encode("videolist", "utf-8");
} catch (unsupportedencodingexception e1) {
// todo auto-generated catch block
e1.printstacktrace();
}
response.setheader("content-disposition","attachment; filename=" + filename + ".txt");
bufferedoutputstream buff = null;
stringbuffer write = new stringbuffer();
string enter = "\r\n";
servletoutputstream outstr = null;
try {
outstr = response.getoutputstream(); // 建立
buff = new bufferedoutputstream(outstr);
//把内容写入文件
if(list.size()>0){
for (int i = 0; i < list.size(); i++) {
write.append(list.get(i).geturl()+",");
write.append(list.get(i).gettitle());
write.append(enter);
}
}
buff.write(write.tostring().getbytes("utf-8"));
buff.flush();
buff.close();
} catch (exception e) {
e.printstacktrace();
} finally {
try {
buff.close();
outstr.close();
} catch (exception e) {
e.printstacktrace();
}
}
}
例子二：
/**
* 导出vip兑换码。
* @throws unsupportedencodingexception
*/
@requestmapping(value = "/{exchangeid}/{packageid}/export", method = requestmethod.get)
public void writetotxt(@pathvariable string exchangeid,@pathvariable string packageid, httpservletrequest request,httpservletresponse response) throws unsupportedencodingexception {
string schoolid = this.getschoolid(request); // 网校id
// 获取网校的vip套餐相应的兑换码
vipcodeexample example=new vipcodeexample();
example.createcriteria().andschoolidequalto(schoolid).andpackageidequalto(packageid).andexchangeidequalto(exchangeid);
list<vipcode> vipcodes = vipexchangemanager.getvipcode(example);
if(vipcodes.size()>0){
response.setcontenttype("text/plain");// 一下两行关键的设置
response.addheader("content-disposition",
"attachment;filename="+java.net.urlencoder.encode(vipcodes.get(0).getname(),"utf-8")+".txt");
// filename指定默认的名字
vipcode vipcode=new vipcode();
bufferedoutputstream buff = null;
stringbuffer write = new stringbuffer();
string tab = " ";
string enter = "\r\n";
servletoutputstream outstr = null;
try {
outstr = response.getoutputstream();// 建立
buff = new bufferedoutputstream(outstr);
for (int i = 0; i < vipcodes.size(); i++) {
vipcode = vipcodes.get(i);
write.append(i+1); //序号
write.append(tab);
write.append(vipcode.getexchangecode());
write.append(tab);
if("normal".equals(vipcode.getstatus())){
write.append("正常");
}else{
write.append("已兑换");
}
write.append(enter);
}
buff.write(write.tostring().getbytes("utf-8"));
buff.flush();
buff.close();
} catch (exception e) {
e.printstacktrace();
} finally {
try {
buff.close();
outstr.close();
} catch (exception e) {
e.printstacktrace();
}
}
}
}
希望本文所述对大家的java程序设计有所帮助。
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