android端代码:
package com.example.take_photo_upload; import java.io.DataOutputStream; import java.io.File; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.FileOutputStream; import java.io.InputStream; import java.net.HttpURLConnection; import java.net.URL; import java.util.HashMap; import java.util.Map; import android.annotation.SuppressLint; import android.annotation.TargetApi; import android.app.Activity; import android.app.AlertDialog; import android.app.AlertDialog.Builder; import android.content.DialogInterface; import android.content.Intent; import android.content.DialogInterface.OnClickListener; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Matrix; import android.net.Uri; import android.os.Build; import android.os.Bundle; import android.os.Environment; import android.os.StrictMode; import android.provider.MediaStore; import android.util.Log; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.widget.Button; import android.widget.ImageView; public class MainActivity extends Activity { private static final int PHOTO_CAPTURE = 0x11; private static String photoPath = "/sdcard/AnBo/"; private static String photoName = photoPath "laolisb.jpg"; Uri imageUri = Uri.fromFile(new File(Environment.getExternalStorageDirectory(), "image.jpg"));//第二个参数是临时文件,在后面将会被修改 private Button photo, sc_photo;//拍照与下载 private ImageView img_photo;//显示图片 private String newName = "laoli.jpg"; /* * 这里的代码应该有问题 */ private String uploadFile = "/sdcard/AnBo/laolisb.jpg"; private String actionUrl = "http://192.168.0.104:8080/UploadPhoto1/UploadServlet";// private String actionUrl = "http://192.168.0.104:8080/File/UploadAction"; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); photo = (Button) findViewById(R.id.photo); sc_photo = (Button) findViewById(R.id.sc_photo); img_photo = (ImageView) findViewById(R.id.imt_photo); /* * android.os.NetworkOnMainThreadException * 耗时操作,加如下代码,可在主线程中进行,但不推荐 */ // StrictMode.setThreadPolicy(new StrictMode.ThreadPolicy.Builder().detectDiskReads().detectDiskWrites().detectNetwork().penaltyLog().build()); // StrictMode.setVmPolicy(new StrictMode.VmPolicy.Builder().detectLeakedSqlLiteObjects().penaltyLog().penaltyDeath().build()); sc_photo.setOnClickListener(new Sc_photo()); photo.setOnClickListener(new Photo()); } class Sc_photo implements View.OnClickListener { @Override public void onClick(View arg0) { // TODO Auto-generated method stub dialog(); } } class Photo implements View.OnClickListener { @Override public void onClick(View v) { Intent intent = new Intent("android.media.action.IMAGE_CAPTURE"); //"/sdcard/AnBo/"; File file = new File(photoPath); if (!file.exists()) { // 检查图片存放的文件夹是否存在 file.mkdir(); // 不存在的话 创建文件夹 } //photoPath "laolisb.jpg" File photo = new File(photoName); imageUri = Uri.fromFile(photo); intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri); // 这样就将文件的存储方式和uri指定到了Camera应用中 startActivityForResult(intent, PHOTO_CAPTURE); } } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { // TODO Auto-generated method stub super.onActivityResult(requestCode, resultCode, data); String sdStatus = Environment.getExternalStorageState(); switch (requestCode) { case PHOTO_CAPTURE: if (!sdStatus.equals(Environment.MEDIA_MOUNTED)) { Log.i("内存卡错误", "请检查您的内存卡"); } else { BitmapFactory.Options op = new BitmapFactory.Options(); // 设置图片的大小 Bitmap bitMap = BitmapFactory.decodeFile(photoName); int width = bitMap.getWidth(); int height = bitMap.getHeight(); // 设置想要的大小 int newWidth = 480; int newHeight = 640; // 计算缩放比例 float scaleWidth = ((float) newWidth) / width; float scaleHeight = ((float) newHeight) / height; // 取得想要缩放的matrix参数 Matrix matrix = new Matrix(); matrix.postScale(scaleWidth, scaleHeight); // 得到新的图片 bitMap = Bitmap.createBitmap(bitMap, 0, 0, width, height, matrix, true); // canvas.drawBitmap(bitMap, 0, 0, paint) // 防止内存溢出 op.inSampleSize = 4; // 这个数字越大,图片大小越小. Bitmap pic = null; pic = BitmapFactory.decodeFile(photoName, op); img_photo.setImageBitmap(pic); // 这个ImageView是拍照完成后显示图片 FileOutputStream b = null; ; try { b = new FileOutputStream(photoName); } catch (FileNotFoundException e) { e.printStackTrace(); } if (pic != null) { pic.compress(Bitmap.CompressFormat.JPEG, 50, b); } } break; default: return; } } protected void dialog() { AlertDialog.Builder builder = new Builder(MainActivity.this); builder.setMessage("确认上传图片吗?"); builder.setTitle("提示"); builder.setPositiveButton("确认", new OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { new Thread(new Runnable() { @Override public void run() { uploadPhoto(); //uploadFile(); } }).start(); } }); builder.setNegativeButton("取消", new OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.dismiss(); } }); builder.create().show(); } //第二种上传方式 public void uploadPhoto() { Map<String, String> params = new HashMap<String, String>(); params.put("strParamName", "strParamValue"); Map<String, File> files = new HashMap<String, File>(); files.put(System.currentTimeMillis() ".jpg", new File(uploadFile));//uploadFile = "/sdcard/AnBo/laolisb.jpg"; try { String str = HttpPost.post(actionUrl, params, files); System.out.println("str--->>>" str); } catch (Exception e) { } } /* 上传文件至Server的方法 */ private void uploadFile() { System.out.print("正在发送请求!"); String end = "\r\n"; String twoHyphens = "--"; String boundary = "*****"; Log.d("Index_Activity", "jsdj"); try { URL url = new URL(actionUrl); HttpURLConnection con = (HttpURLConnection) url.openConnection(); /* 允许Input、Output,不使用Cache */ System.out.println(con.getResponseCode() "*********"); 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 */ System.out.print("已经找到数据正在发送!"); int bufferSize = 1024 * 10; byte[] buffer = new byte[bufferSize]; 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"); /* 关闭DataOutputStream */ ds.close(); } catch (Exception e) { Log.d("OK", "jsdj"); System.out.print("网络出现异常!"); // showDialog("上传失败"); e.printStackTrace(); } } /* 显示Dialog的method */ private void showDialog(String mess) { new AlertDialog.Builder(MainActivity.this).setTitle("提示").setMessage(mess).setNegativeButton("确定", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { } }).show(); } }
服务器端代码:
package com.upload.servlet; import java.io.File; import java.io.IOException; import java.util.ArrayList; import java.util.Iterator; import java.util.List; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.commons.fileupload.FileItem; import org.apache.commons.fileupload.FileUpload; import org.apache.commons.fileupload.RequestContext; import org.apache.commons.fileupload.disk.DiskFileItemFactory; import org.apache.commons.fileupload.servlet.ServletFileUpload; import org.apache.commons.fileupload.servlet.ServletRequestContext; /** * Servlet implementation class UploadServlet */ @WebServlet("/UploadServlet") public class UploadServlet extends HttpServlet { private static final long serialVersionUID = 1L; /** * Default constructor. */ public UploadServlet() { // TODO Auto-generated constructor stub } /** * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response) */ protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub } /** * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) */ public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { RequestContext req = new ServletRequestContext(request); if (FileUpload.isMultipartContent(req)) { DiskFileItemFactory factory = new DiskFileItemFactory(); ServletFileUpload fileUpload = new ServletFileUpload(factory); fileUpload.setFileSizeMax(1024 * 1024 * 1024); List items = new ArrayList(); try { items = fileUpload.parseRequest(request); } catch (Exception e) { } Iterator it = items.iterator(); while (it.hasNext()) { FileItem fileItem = (FileItem) it.next(); if (fileItem.isFormField()) { System.out.println(fileItem.getFieldName() " " fileItem.getName() " " new String(fileItem.getString().getBytes("ISO-8859-1"), "GBK")); } else { System.out.println(fileItem.getFieldName() " " fileItem.getName() " " fileItem.isInMemory() " " fileItem.getContentType() " " fileItem.getSize()); if (fileItem.getName() != null && fileItem.getSize() != 0) { File fullFile = new File(fileItem.getName()); File newFile = new File("F:\\upload\\" fullFile.getName()); try { fileItem.write(newFile); } catch (Exception E) { } } else { System.out.println("no file choosen or empty file"); } } } } } }
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