delphi2种上传方法,.net 用1, java用2

delphi2种上传方法,.net 用1, java用2，
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, Buttons, ComCtrls, ExtCtrls, Gauges, IdComponent,
IdTCPConnection, IdTCPClient, IdHTTP, IdBaseComponent, IdAntiFreezeBase,
IdAntiFreeze, ImgList,IdMultipartFormData,httpapp;
方法1：
function TfrmRptFilesUpLoad.UploadFile(FileName: string; DesSubDir: string; DesFileName: string): Boolean;
var
Source: TMemoryStream;
Response: TStringStream;
WorkPostContentStream: TStringStream;
begin
if FileExists(FileName) then
begin
Response := TStringStream.Create(‘’);
Source := TMemoryStream.Create;
WorkPostContentStream := TStringStream.Create(‘’);
Source.LoadFromFile(FileName);
idHttpPost.ProtocolVersion := pv1_1;
try
WorkPostContentStream.CopyFrom(Source, Source.Size);
idHttpPost.Post(StringReplace(FormatURL, ‘toyorReport’, ‘User’, []) + ‘uploadreport.do?filename=’ + DesFileName + ‘&subdir=’ + DesSubDir, WorkPostContentStream, Response);
WorkPostContentStream.Free;
Response.Free;
Source.Free;
Result := True;
except
WorkPostContentStream.Free;
Response.Free;
Source.Free;
Result := False;
end;
end
else
begin
Result := False;
end;
end;
方法2:
function TfrmRptFilesUpLoad.UploadFile(FileName:String;DesSubDir: String;DesFileName:WideString): Boolean;
var
Source: TIdMultiPartFormDataStream ;
begin
if FileExists(FileName) then
begin
Source := TIdMultiPartFormDataStream.Create;
Source.AddFormField(‘reportfilename’,AnsiToUtf8(DesFileName));
Source.AddFormField(‘subdir’,DesSubDir);
Source.AddFile(‘zfile’,FileName,’multipart/form-data’);
idHttpPost.ProtocolVersion := pv1_1 ;
try
idHttpPost.Post(StringReplace(FormatURL,’toyorReport’,’User’,[])+’uploadreport.do?report=1’,Source);
Source.Free;
Result:=True;
except
Source.Free;
Result:=False;
end;
end
else
begin
Result:=False;
end;
end;
下载文件：
function TfrmRptFilesSynchronization.DownLoadFile(URL: String;Des:WideString;Info:String): Boolean;
var MyStream:TMemoryStream;
begin
DownBytes:=0;
AllBytes:=0;
IdAntiFreeze.OnlyWhenIdle:=False;
MyStream:=TMemoryStream.Create;
try
pnlStatus.Caption:=Info;
pnlStatus.Refresh;
IdHTTP.Get(URL,MyStream);
except
MyStream.Free;
pnlStatus.Caption:=’文件获取失败，请检查您的地址是否正确，并验证您的网络是否通畅！’ + #10#13 +
‘同时请检查您的服务器IIS目录安全性，应设为允许启用匿名访问。’;
Result:=False;
Exit;
end;
MyStream.SaveToFile(Path+ Utf8ToAnsi(Des));
MyStream.Free;
pnlStatus.Caption:=’指定的文件已经成功的获取到相应的目录！’;
pnlStatus.Refresh;
Result:=True;
end;
.net 后台：
private void Page_Load(object sender, System.EventArgs e)
{
string filename=Request[“filename”];
string subdir=Request[“subdir”];
string SaveFileName=””;
if (subdir!=””)
{
SaveFileName=@Server.MapPath(“.”)+@””+subdir+@””+@filename;
}
else
{
SaveFileName=@Server.MapPath(“.”)+@””+@filename;
}
Response.Write(SaveFileName);
Response.Write(“InputStream.Len=”+Request.InputStream.Length);
BinaryReader br = new BinaryReader(Request.InputStream);
Byte[] FileInfo = br.ReadBytes((int)Request.InputStream.Length);
FileStream fs = new FileStream(SaveFileName, FileMode.Create);
BinaryWriter w = new BinaryWriter(fs);
w.Write(FileInfo);
w.Close();
fs.Close();
}
java后台：
//打印组件
@RequestMapping(“/loginreport”)
public void loginreport(String compno, String username, String password ,HttpServletResponse response) {
if (username == null || compno == null) {
outString(“0”, response);
return;
}
User user = userService.login(compno, username, password);
if (user != null) {
outString(“1”, response);
} else {
outString(“0”, response);
}
}
@RequestMapping(value = “/uploadreport”,method = RequestMethod.POST)
public void uploadreport(String report,HttpServletRequest request, HttpServletResponse response) throws IOException, FileUploadException {
Map map = new HashMap();
map.put(“report”,report);
org.json.JSONObject jsonObjectParam = baseUpLoadFile(request, response,map);
if(jsonObjectParam == null){
//outErrorInfo(“-1000”,”上传文件出错”,response);
return;
}
}
//打印组件
public org.json.JSONObject baseUpLoadFile(HttpServletRequest request, HttpServletResponse response, Map map) throws IOException, FileUploadException {
org.json.JSONObject jsonObject = new org.json.JSONObject();
String filename = “”;
response.setContentType(“text/html”);
// 创建文件项目工厂对象
DiskFileItemFactory factory = new DiskFileItemFactory();
// 获取系统默认的临时文件保存路径，该路径为Tomcat根目录下的temp文件夹
String temp = System.getProperty(“;
// 设置缓冲区大小为 5M
factory.setSizeThreshold(1024 1024 5);
// 设置临时文件夹为temp
factory.setRepository(new File(temp));
// 用工厂实例化上传组件,ServletFileUpload 用来解析文件上传请求
ServletFileUpload servletFileUpload = new ServletFileUpload(factory);
// 解析结果放在List中
try {
List list = servletFileUpload.parseRequest(request);
for (FileItem item : list) {
String name = item.getFieldName();
InputStream is = item.getInputStream();
if (map == null) {
if (name.contains(“card_type”)) {
jsonObject.put(“card_type”, inputStream2String(is));
}
if (name.contains(“file”)) {
try {
if (map == null) {
filename = DateTime.getNowString(“yyyyMMddHHmmssSSS”) + “.jpg”;
inputStream2File(is, request.getSession().getServletContext().getRealPath((new ImgFilePath()).getProperty(“temp”)) + “\” + filename);
}
} catch (Exception e) {
e.printStackTrace();
}
jsonObject.put(“filename”, filename);
}
}
else if (map != null && map.containsKey(“report”)) {
String reportfilename = “”;
String subdir = “”;
if (item.getFieldName().contains(“reportfilename”)) {
jsonObject.put(“reportfilename”, inputStream2String(item.getInputStream()));
}
if (item.getFieldName().contains(“subdir”)) {
jsonObject.put(“subdir”, inputStream2String(item.getInputStream()));
}
if (name.contains(“zfile”)) {
try {
if (!jsonObject.get(“reportfilename”).equals(“”)) {
if (!jsonObject.get(“subdir”).equals(“”)) {
inputStream2File(is, request.getSession().getServletContext().getRealPath(“/toyorReport”) + “\” + jsonObject.get(“subdir”) + “\” + jsonObject.get(“reportfilename”).toString());
} else {
inputStream2File(is, request.getSession().getServletContext().getRealPath(“/toyorReport”) + “\” + jsonObject.get(“reportfilename”).toString());
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
}
return jsonObject;
} catch (FileUploadException e) {
e.printStackTrace();
return null;
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
// 流转化成字符串
public static String inputStream2String(InputStream is) throws IOException {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
int i = -1;
while ((i = is.read()) != -1) {
baos.write(i);
}
return baos.toString(“utf-8”);
}
// 流转化成文件
public static void inputStream2File(InputStream is, String savePath)
throws Exception {
System.out.println(“文件保存路径为:” + savePath);
File file = new File(savePath);
InputStream inputSteam = is;
BufferedInputStream fis = new BufferedInputStream(inputSteam);
FileOutputStream fos = new FileOutputStream(file);
int f;
while ((f = fis.read()) != -1) {
fos.write(f);
}
fos.flush();
fos.close();
fis.close();
inputSteam.close();
}