mainactivity.java
package com.example.android_camera_upload;
import java.io.ByteArrayOutputStream;
import org.apache.http.util.ByteArrayBuffer;
import com.example.android_camera_upload.R;
import android.os.Bundle;
import android.app.Activity;
import
android.content.Intent;
import android.graphics.Bitmap;
import
android.util.Log;
import android.view.Menu;
import
android.view.View;
import android.widget.Button;
import
android.widget.ImageView;
public class MainActivity extends Activity {
private Button
button1;
private Button button2;
private ImageView
imageview1;
private byte[] image_data; // 存儲圖片的數據
private final String
upload_pathString="http://166.111.82.103:8080/uploadImage"
+
"/"+"/servlet/UploadAction";
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button1
= (Button) findViewById(R.id.button1);
button2 = (Button)
findViewById(R.id.button2);
imageview1 = (ImageView)
findViewById(R.id.imageView1);
button1.setOnClickListener(new
View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO
Auto-generated method stub
Intent intent = new
Intent(
android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(intent,
1000);
}
});
button2.setOnClickListener(new
View.OnClickListener() {
@Override
public void onClick(View v) {
// TODO
Auto-generated method stub
Log.i("调试信息","执行post");
HttpPostUtils.sendFormByPost(upload_pathString, image_data,
"aa.png");
}
});
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
//
Inflate the menu; this adds items to the action bar if it is
present.
getMenuInflater().inflate(R.menu.main, menu);
return
true;
}
@Override
protected void onActivityResult(int requestCode, int
resultCode, Intent data) {
// TODO Auto-generated method
stub
super.onActivityResult(requestCode, resultCode, data);
if
(requestCode == 1000 && resultCode == RESULT_OK) {
Bundle bundle =
data.getExtras();
Bitmap bm = (Bitmap)
bundle.get("data");
ByteArrayOutputStream outputStream = new
ByteArrayOutputStream();
bm.compress(Bitmap.CompressFormat.PNG, 50,
outputStream);
image_data =
outputStream.toByteArray();
imageview1.setImageBitmap(bm);
}
}
}
下面是一个工具类,其中的调试信息可以注册掉
package com.example.android_camera_upload;
import org.apache.http.HttpResponse;
import
org.apache.http.HttpStatus;
import
org.apache.http.client.HttpClient;
import
org.apache.http.client.methods.HttpPost;
import
org.apache.http.entity.mime.MultipartEntity;
import
org.apache.http.entity.mime.content.ByteArrayBody;
import
org.apache.http.impl.client.DefaultHttpClient;
import android.util.Log;
public class HttpPostUtils {
public static void sendFormByPost(final
String path,
final byte[] fileBody, final String fileName) {
boolean
flag = false;
new Thread(new Runnable() {
@Override
public
void run() {
// TODO Auto-generated method stub
try
{
HttpClient httpClient=new
DefaultHttpClient();
Log.i("調試信息","111");
HttpPost httpPost=new
HttpPost(path);
Log.i("調試信息","2");
MultipartEntity entity=new
MultipartEntity();
Log.i("調試信息","3");
entity.addPart("myfile",new
ByteArrayBody(fileBody,
fileName));
Log.i("調試信息","4");
httpPost.setEntity(entity);
Log.i("調試信息","5");
HttpResponse
httpResponse=httpClient.execute(httpPost);
Log.i("htttp返回状态",(httpResponse.getStatusLine().getStatusCode())+"i");
if(httpResponse.getStatusLine().getStatusCode()==HttpStatus.SC_OK)
{
Log.i("調試信息","6");
Log.i("調試信息","76");
}
}
catch (Exception e) {
Log.i("調試信息","错误");
e.printStackTrace();
//
TODO: handle exception
}
}
}).start();
// return
flag;
}
}
下面是在myeclipse下写的服务器端servlet:
package com.image.upload;
import java.io.File;
import java.io.IOException;
import
java.io.PrintWriter;
import java.util.List;
import javax.servlet.ServletException;
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.disk.DiskFileItemFactory;
import
org.apache.commons.fileupload.servlet.ServletFileUpload;
public class UploadAction extends HttpServlet {
public UploadAction() {
super();
}
public void destroy() {
super.destroy(); // Just puts "destroy"
string in log
// Put your code here
}
public void doGet(HttpServletRequest request, HttpServletResponse
response)
throws ServletException, IOException
{
this.doPost(request, response);
}
public void doPost(HttpServletRequest request, HttpServletResponse
response)
throws ServletException, IOException {
String path =
request.getContextPath();
//实例化一个磁盘文件工厂,用来配置上传组件ServletFileUpload
DiskFileItemFactory factory = new
DiskFileItemFactory();
//System.out.println("调试信息2");
//用上面的工厂实例化上传组件
ServletFileUpload fileUpload = new
ServletFileUpload(factory);
//fileUpload.setFileItemFactory(factory);
fileUpload.setSizeMax(4
* 1024 * 1024);
fileUpload.setFileSizeMax(2 * 1024 *
1024);
List<FileItem> list = null;
try {
//解析request,处理客户端传来的所有表单数据,返回list(包括file和非file类型)
list =
fileUpload.parseRequest(request);
for (FileItem item : list)
{
// 判断客户端传来的form表单中
是否是一个file类型
//文件类型
if(!item.isFormField())
{
//得到文件的名称
String imageString = item.getName();
String file_upload_path=request.getRealPath("/upload")+"/"+imageString;
System.out.println("图片上传路径-------》"+file_upload_path);
item.write(new File(file_upload_path));
}
}
} catch (Exception e) {
// TODO: handle
exception
e.printStackTrace();
}
}
public void init() throws ServletException {
// Put your code
here
}
}
最后一定要记得在manifest中加入网络访问权限。