框架采用s2sm架构 ,处理apk上传下载, 处理图片上传下载,核心代码.

前端:

转发:

类:@Controller("businessManage.AppToolAction") 

method:@Autowired
private AppToolService appToolService;

private File image; //数据文件

private String imageFileName; //数据文件名

private String imageContentType; //文件类型

private File app; //数据文件

private String appFileName; //数据文件名

private String appContentType; //文件类型
/**
* 上传APP应用工具
* @return 
*/
public String uploadTool() {
HttpServletRequest request = ServletActionContext.getRequest();
HttpServletResponse response = ServletActionContext.getResponse();
response.setContentType("text/HTML;charset=UTF-8");

appToolService.uploadTool(image, imageFileName, imageContentType, app, appFileName, appContentType, request);

return "appToolList";
}

public void uploadTool(File image, String imageFileName, String imageContentType, File app, String appFileName, String appContentType, HttpServletRequest request) {

//获取参数
String title = request.getParameter("title");
String description = request.getParameter("description");
int  tool_type = Integer.parseInt(request.getParameter("tool_type"));//系统文档工具类型
String address = request.getParameter("address");
String tool_version = request.getParameter("tool_version");//系统文档工具的版本
String id = UUIDUtil.create();//生成id
String file_type =appFileName.substring(appFileName.lastIndexOf(".") + 1, appFileName.length());

//文件上传
String imageName = FileDealHelper.uploadFile(imageFileName, image, "tools");//上传app图片
String fileName=FileDealHelper.uploadFile(appFileName, app, "tools");//上传app


//组装server_address 
String server_address=fileName ;
// System.out.println(server_address);
 
Tools tools = new Tools(id, fileName, tool_version, file_type, app.length()+"", tool_type, 0, imageName, title, description, address,server_address);
//获取最高版本tools
Tools highestTools = getAppInfo(title, tool_type);
if(highestTools!=null){ //不存在,则versionCode default 1 
int nowVersionCode = highestTools.getVersionCode()+1;
tools.setVersionCode(nowVersionCode);
}else{
tools.setVersionCode(1);
}
dao.add(tools);

}

/**
* 上传文件
* 
* @param fileName
*            要上传的文件名称
* @param fileObject
*            要上传的文件对象
* @param folderName
*            指定存放文件的文件夹名称
* @return
*/
public static String uploadFile(String fileName, File fileObject,
String folderName) {
try {
fileName = UUID.randomUUID().toString().replaceAll("-", "")
+ fileName.replaceAll(".*\\.", ".");
FileDealHelper de = new FileDealHelper();
String uploadPath = de.getConfigPath("upload_path")
+ ServerUtils.getSysFileSeparator() + folderName;
if (fileObject != null) {
if (!new File(uploadPath).isDirectory()) { // 如果此目录不存在，则创建
new File(uploadPath).mkdirs();
}
File saveFile = new File(new File(uploadPath), fileName);
if (!saveFile.getParentFile().exists()) {
saveFile.getParentFile().mkdirs();
}
FileUtils.copyFile(fileObject, saveFile);
}
} catch (Exception e) {
e.printStackTrace();
}
return '/' + folderName + '/' + fileName;
}

/**
* 上传文件
* 
* @param fileName
*            要上传的文件名称
* @param fileObject
*            要上传的文件对象
* @param folderName
*            指定存放文件的文件夹名称
* @return
*/
public static String uploadFile(String fileName, File fileObject,
String folderName) {
try {
fileName = UUID.randomUUID().toString().replaceAll("-", "")
+ fileName.replaceAll(".*\\.", ".");
FileDealHelper de = new FileDealHelper();
String uploadPath = de.getConfigPath("upload_path")
+ ServerUtils.getSysFileSeparator() + folderName;
if (fileObject != null) {
if (!new File(uploadPath).isDirectory()) { // 如果此目录不存在，则创建
new File(uploadPath).mkdirs();
}
File saveFile = new File(new File(uploadPath), fileName);
if (!saveFile.getParentFile().exists()) {
saveFile.getParentFile().mkdirs();
}
FileUtils.copyFile(fileObject, saveFile);
}
} catch (Exception e) {
e.printStackTrace();
}
return '/' + folderName + '/' + fileName;
}

以上为上传

这里为下载的方法

@Controller("sys.PublicShowImage")

private final static Logger log = Logger.getLogger(PublicShowImage.class);

private String showImageUrl;

private String apkUrl;
//app
public void downApp() {
try {
String[] showImageUrls=showImageUrl.split("/");
StringBuffer sysShowImageUrl=new StringBuffer();
for (String imageName : showImageUrls) {
sysShowImageUrl.append(ServerUtils.getSysFileSeparator()).append(imageName);
}


OutputStream out = null;
HttpServletResponse response=ServletActionContext.getResponse();
out = response.getOutputStream();
response.setContentType("application/vnd.android.package-archive");
response.addHeader("Content-Disposition", "attachment;filename="+ URLEncoder.encode(showImageUrls[2], "UTF-8"));
FileDealHelper.downLoadFile(out, sysShowImageUrl.toString());
} catch (Exception e) {
log.error(this, e);
} 
}

//图片
public void showImg() {
try {
OutputStream out = null;
out = ServletActionContext.getResponse().getOutputStream();
String[] showImageUrls=showImageUrl.split("/");
StringBuffer sysShowImageUrl=new StringBuffer();
for (String imageName : showImageUrls) {
sysShowImageUrl.append(ServerUtils.getSysFileSeparator()).append(imageName);
}
FileDealHelper.downLoadFile(out, sysShowImageUrl.toString());
} catch (Exception e) {
log.error(this, e);
} 
}

/**
* 根据文件路径下载文件
* 
* @param out
* @param imageUrl
*            图片路径
*/
public static void downLoadFile(OutputStream out, String imageUrl) {
FileDealHelper de = new FileDealHelper();
String filePath = de.getConfigPath("downLoad_path") + imageUrl;
File file = new File(filePath);
if (file.exists()) {
// 获取文件的输入流
FileInputStream fileInput = null;
BufferedInputStream bufferedInput = null;
try {
fileInput = new FileInputStream(file);
bufferedInput = new BufferedInputStream(fileInput);
// 输出的缓存
byte[] bufferedByte = new byte[1024];
int i = 0;
// 读取文件的输入流
while ((i = bufferedInput.available()) > 0) {
if (i < 1024) {
bufferedByte = new byte[i];
}
fileInput.read(bufferedByte);
out.write(bufferedByte);
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (bufferedInput != null) {
bufferedInput.close();
}
if (fileInput != null) {
fileInput.close();
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
}

public void showImg() {
try {
OutputStream out = null;
out = ServletActionContext.getResponse().getOutputStream();
String[] showImageUrls=showImageUrl.split("/");
StringBuffer sysShowImageUrl=new StringBuffer();
for (String imageName : showImageUrls) {
sysShowImageUrl.append(ServerUtils.getSysFileSeparator()).append(imageName);
}
FileDealHelper.downLoadFile(out, sysShowImageUrl.toString());
} catch (Exception e) {
log.error(this, e);
} 
}

public static void downLoadFile(OutputStream out, String imageUrl) {
FileDealHelper de = new FileDealHelper();
String filePath = de.getConfigPath("downLoad_path") + imageUrl;
File file = new File(filePath);
if (file.exists()) {
// 获取文件的输入流
FileInputStream fileInput = null;
BufferedInputStream bufferedInput = null;
try {
fileInput = new FileInputStream(file);
bufferedInput = new BufferedInputStream(fileInput);
// 输出的缓存
byte[] bufferedByte = new byte[1024];
int i = 0;
// 读取文件的输入流
while ((i = bufferedInput.available()) > 0) {
if (i < 1024) {
bufferedByte = new byte[i];
}
fileInput.read(bufferedByte);
out.write(bufferedByte);
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (bufferedInput != null) {
bufferedInput.close();
}
if (fileInput != null) {
fileInput.close();
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
}