android上传图片至服务器 转.docx

android上传图片至服务器 转 本实例实现了android上传手机图片至服务器，服务器进行保存服务器servlet代码public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException String temp=request.getSession().getServletContext().getRealPath(/)+temp; /临时目录 System.out.println(temp=+temp); String loadpath=request.getSession().getServletContext().getRealPath(/)+Image; /上传文件存放目录 System.out.println(loadpath=+loadpath); DiskFileUpload fu = new DiskFileUpload(); fu.setSizeMax(1*1024*1024); / 设置允许用户上传文件大小,单位:字节 fu.setSizeThreshold(4096); / 设置最多只允许在内存中存储的数据,单位:字节 fu.setRepositoryPath(temp); / 设置一旦文件大小超过getSizeThreshold()的值时数据存放在硬盘的目录 /开始读取上传信息 int index=0; List fileItems = null; try fileItems = fu.parseRequest(request); System.out.println(fileItems=+fileItems); catch (Exception e) e.printStackTrace(); Iterator iter = fileItems.iterator(); / 依次处理每个上传的文件 while (iter.hasNext() FileItem item = (FileItem)iter.next();/ 忽略其他不是文件域的所有表单信息 if (!item.isFormField() String name = item.getName();/获取上传文件名,包括路径 name=name.substring(name.lastIndexOf()+1);/从全路径中提取文件名 long size = item.getSize(); if(name=null|name.equals() & size=0) continue; int point = name.indexOf(.); name=(new Date().getTime()+name.substring(point,name.length()+index; index+; File fNew= new File(loadpath, name); try item.write(fNew); catch (Exception e) / TODO Auto-generated catch block e.printStackTrace(); else /取出不是文件域的所有表单信息 String fieldvalue = item.getString(); /如果包含中文应写为：(转为UTF-8编码) /String fieldvalue = new String(item.getString().getBytes(),UTF-8); String text1=11; response.sendRedirect(result.jsp?text1= + text1); 复制代码android客户端代码public class PhotoUpload extends Activity private String newName = image.jpg; private String uploadFile = /sdcard/image.JPG; private String actionUrl = 1:8086/HelloWord/myForm; private TextView mText1; private TextView mText2; private Button mButton; Override public void onCreate(Bundle savedInstanceState) super.onCreate(savedInstanceState); setContentView(R.layout.photo_upload); mText1 = (TextView) findViewById(R.id.myText2); /文件路径：n+ mText1.setText(uploadFile); mText2 = (TextView) findViewById(R.id.myText3); /上传网址：n+ mText2.setText(actionUrl); /* 设置mButton的onClick事件处理 */ mButton = (Button) findViewById(R.id.myButton); mButton.setOnClickListener(new View.OnClickListener() public void onClick(View v) uploadFile(); ); /* 上传文件至Server的方法 */ private void uploadFile() String end = rn; String twoHyphens = -; String boundary = *; try URL url =new URL(actionUrl); HttpURLConnection con=(HttpURLConnection)url.openConnection(); /* 允许Input、Output，不使用Cache */ con.setDoInput(true); con.setDoOutput(true); con.setUseCaches(false); /* 设置传送的method=POST */ con.setRequestMethod(POST); /* setRequestProperty */ con.setRequestProperty(Connection, Keep-Alive); con.setRequestProperty(Charset, UTF-8); con.setRequestProperty(Content-Type, multipart/form-data;boundary=+boundary); /* 设置DataOutputStream */ DataOutputStream ds = new DataOutputStream(con.getOutputStream(); ds.writeBytes(twoHyphens + boundary + end); ds.writeBytes(Content-Disposition: form-data; + name=file1;filename= + newName + + end); ds.writeBytes(end); /* 取得文件的FileInputStream */ FileInputStream fStream = new FileInputStream(uploadFile); /* 设置每次写入1024bytes */ int bufferSize = 1024; byte buffer = new bytebufferSize; int length = -1; /* 从文件读取数据至缓冲区 */ while(length = fStream.read(buffer) != -1) /* 将资料写入DataOutputStream中 */ ds.write(buffer, 0, length); ds.writeBytes(end); ds.writeBytes(twoHyphens + boundary + twoHyphens + end); /* close streams */ fStream.close(); ds.flush(); /* 取得Response内容 */ InputStream is = con.getInputStream(); int ch; StringBuffer b =new StringBuffer(); while( ( ch = is.read() ) != -1 ) b.append( (char)ch ); /* 将Response显示于Dialog */ showDialog(上传成功+b.toString().trim(); /* 关闭DataOutputStream */ ds.close(); catch(Exception e) showDialog(上传失败+e); /* 显示Dialog的method */ private void showDialog(String mess