Android拍照获取照片路径并上传至服务器+Servlet代码
先来客户端代码【这里只写了主要代码】
先来张效果图，
iv_photo.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
new ActionSheetDialog(SendGoodsDetailsActivity.this).builder().setTitle("上传车辆照片")
.setCancelable(false).setCanceledOnTouchOutside(false)
.addSheetItem("拍照上传", SheetItemColor.Blue, new OnSheetItemClickListener() {
@Override
public void onClick(int which) {
// 拍照
//设置图片的保存路径,作为全局变量
imageFilePath = Environment.getExternalStorageDirectory().getAbsolutePath()+"/filename.jpg";
File temp = new File(imageFilePath)；
Uri imageFileUri = Uri.fromFile(temp);//获取文件的Uri
Intent it = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);//跳转到相机Activity
it.putExtra(android.provider.MediaStore.EXTRA_OUTPUT, imageFileUri);//告诉相机拍摄完毕输出图片到指定的Uri
startActivityForResult(it, 102);
}
}).addSheetItem("相册选择", SheetItemColor.Blue, new OnSheetItemClickListener() {
@Override
public void onClick(int which) {
// 相册选取
Intent intent1 = new Intent(Intent.ACTION_GET_CONTENT);
intent1.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "image/*");
startActivityForResult(intent1, 103);
}
}).show();
}
});
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
switch(requestCode){
case 102:
if (resultCode == Activity.RESULT_OK) {
Bitmap bmp = BitmapFactory.decodeFile(imageFilePath);
iv_photo.setImageBitmap(bmp);
}
break;
case 103:
Bitmap bm = null;
// 外界的程序访问ContentProvider所提供数据 可以通过ContentResolver接口
ContentResolver resolver = getContentResolver();
try {
Uri originalUri = data.getData(); // 获得图片的uri
bm = MediaStore.Images.Media.getBitmap(resolver, originalUri); // 显得到bitmap图片
// 这里开始的第二部分，获取图片的路径：
String[] proj = { MediaStore.Images.Media.DATA };
// 好像是android多媒体数据库的封装接口，具体的看Android文档
@SuppressWarnings("deprecation")
Cursor cursor = managedQuery(originalUri, proj, null, null, null);
// 按我个人理解 这个是获得用户选择的图片的索引值
int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
// 将光标移至开头 ，这个很重要，不小心很容易引起越界
cursor.moveToFirst();
// 最后根据索引值获取图片路径
String path = cursor.getString(column_index);
iv_photo.setImageURI(originalUri);
} catch (IOException e) {
e.printStackTrace();
}
break;
}
super.onActivityResult(requestCode,resultCode,data);
}
下面是上传的一个工具类，嘻嘻，从网上找的一个大神的，可以用
/** * * 上传工具类 * @author spring sky * Email:[email protected] * QQ:840950105 * MyName:石明政 */ public class UploadUtil { private static final String TAG = "uploadFile"; private static final int TIME_OUT = 10*1000; //超时时间 private static final String CHARSET = "utf-8"; //设置编码 /** * android上传文件到服务器 * @param file 需要上传的文件 * @param RequestURL 请求的rul * @return 返回响应的内容 */ public static String uploadFile(File file,String RequestURL){ String result = null; String BOUNDARY = UUID.randomUUID().toString(); //边界标识 随机生成 String PREFIX = "--" , LINE_END = "\r\n"; String CONTENT_TYPE = "multipart/form-data"; //内容类型 try { URL url = new URL(RequestURL); HttpURLConnection conn = (HttpURLConnection) url.openConnection(); conn.setReadTimeout(TIME_OUT); conn.setConnectTimeout(TIME_OUT); conn.setDoInput(true); //允许输入流 conn.setDoOutput(true); //允许输出流 conn.setUseCaches(false); //不允许使用缓存 conn.setRequestMethod("POST"); //请求方式 conn.setRequestProperty("Charset", CHARSET); //设置编码 conn.setRequestProperty("connection", "keep-alive"); conn.setRequestProperty("Content-Type", CONTENT_TYPE + ";boundary=" + BOUNDARY); conn.connect(); if(file!=null){ /** * 当文件不为空，把文件包装并且上传 */ DataOutputStream dos = new DataOutputStream( conn.getOutputStream()); StringBuffer sb = new StringBuffer(); sb.append(PREFIX); sb.append(BOUNDARY); sb.append(LINE_END); /** * 这里重点注意： * name里面的值为服务器端需要key 只有这个key 才可以得到对应的文件 * filename是文件的名字，包含后缀名的 比如:abc.png */ sb.append("Content-Disposition: form-data; name=\"img\"; filename=\""+file.getName()+"\""+LINE_END); sb.append("Content-Type: application/octet-stream; charset="+CHARSET+LINE_END); sb.append(LINE_END); dos.write(sb.toString().getBytes()); InputStream is = new FileInputStream(file); byte[] bytes = new byte[1024]; int len = 0; while((len=is.read(bytes))!=-1){ dos.write(bytes, 0, len); } is.close(); dos.write(LINE_END.getBytes()); byte[] end_data = (PREFIX+BOUNDARY+PREFIX+LINE_END).getBytes(); dos.write(end_data); dos.flush(); /** * 获取响应码 200=成功 * 当响应成功，获取响应的流 */ int res = conn.getResponseCode(); if(res==200){ InputStream input = conn.getInputStream(); StringBuffer sb1= new StringBuffer(); int ss ; while((ss=input.read())!=-1){ sb1.append((char)ss); } result = sb1.toString(); System.out.println(result); } } } catch (MalformedURLException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } return result; } }
在下就是调用上传的方法了，这里我给摘出来了
File file = new File(path); //这里的path就是那个地址的全局变量 String result = UploadUtil.uploadFile(file, RequestURL);
这里客户端就完成了，下面就是服务端代码，这里我用的是servlet
public class UploadShipServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
private String path;
public UploadShipServlet() {
super();
}
public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
this.doPost(request, response);
}
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=utf-8");
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
PrintWriter out = response.getWriter();
// 创建文件项目工厂对象
DiskFileItemFactory factory = new DiskFileItemFactory();
// 设置文件上传路径
String upload = this.getServletContext().getRealPath("/");
// 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("java.io.tmpdir");
// 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<FileItem> list = servletFileUpload.parseRequest(request);
for (FileItem item : list) {
String name = item.getFieldName();
InputStream is = item.getInputStream();
if (name.contains("content")) {
System.out.println(inputStream2String(is));
} else if (name.contains("img")) {
try {
path = upload+"\\"+item.getName();
inputStream2File(is, path);
break;
} catch (Exception e) {
e.printStackTrace();
}
}
}
out.write(path); //这里我把服务端成功后，返回给客户端的是上传成功后路径
} catch (FileUploadException e) {
e.printStackTrace();
System.out.println("failure");
out.write("failure");
}
out.flush();
out.close();
}
// 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();
}
// 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();
}
}
ok了，这样就大功告成了，多整理以后好用得着。